/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 13:12:06,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 13:12:06,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 13:12:06,482 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 13:12:06,482 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 13:12:06,483 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 13:12:06,484 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 13:12:06,486 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 13:12:06,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 13:12:06,488 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 13:12:06,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 13:12:06,490 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 13:12:06,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 13:12:06,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 13:12:06,492 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 13:12:06,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 13:12:06,494 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 13:12:06,495 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 13:12:06,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 13:12:06,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 13:12:06,499 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 13:12:06,500 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 13:12:06,501 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 13:12:06,502 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 13:12:06,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 13:12:06,504 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 13:12:06,504 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 13:12:06,505 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 13:12:06,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 13:12:06,507 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 13:12:06,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 13:12:06,507 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 13:12:06,508 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 13:12:06,509 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 13:12:06,510 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 13:12:06,510 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 13:12:06,510 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 13:12:06,511 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 13:12:06,511 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 13:12:06,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 13:12:06,512 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 13:12:06,513 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 13:12:06,526 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 13:12:06,527 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 13:12:06,528 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 13:12:06,528 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 13:12:06,528 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 13:12:06,528 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 13:12:06,528 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 13:12:06,529 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 13:12:06,529 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 13:12:06,529 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 13:12:06,529 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 13:12:06,529 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 13:12:06,529 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 13:12:06,530 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 13:12:06,530 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:12:06,530 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 13:12:06,530 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 13:12:06,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 13:12:06,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 13:12:06,531 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 13:12:06,531 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 13:12:06,531 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 13:12:06,531 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 13:12:06,531 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 13:12:06,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 13:12:06,532 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 13:12:06,532 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 13:12:06,532 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 13:12:06,532 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 13:12:06,701 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 13:12:06,714 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 13:12:06,718 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 13:12:06,719 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 13:12:06,719 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 13:12:06,720 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 13:12:06,778 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_o01qV_/tmp/1f3958bac5104669992e838b375dd398/FLAG0811db43e !SESSION 2020-07-01 13:12:04.260 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp/BenchExec_run_o01qV_/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.cdt.core 1 0 2020-07-01 13:12:07.068 !MESSAGE Indexed 'FLAG0811db43e' (0 sources, 0 headers) in 0.007 sec: 0 declarations; 0 references; 0 unresolved inclusions; 0 syntax errors; 0 unresolved names (0%) [2020-07-01 13:12:07,142 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 13:12:07,143 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 13:12:07,143 WARN L117 ultiparseSymbolTable]: System include stdlib.h could not be resolved by CDT -- only built-in system includes are available. [2020-07-01 13:12:07,150 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_o01qV_/tmp/1f3958bac5104669992e838b375dd398/FLAG0811db43e [2020-07-01 13:12:07,699 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_o01qV_/tmp/1f3958bac5104669992e838b375dd398 [2020-07-01 13:12:07,710 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 13:12:07,712 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 13:12:07,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 13:12:07,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 13:12:07,716 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 13:12:07,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 01:12:07" (1/1) ... [2020-07-01 13:12:07,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35de94bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:12:07, skipping insertion in model container [2020-07-01 13:12:07,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 01:12:07" (1/1) ... [2020-07-01 13:12:07,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 13:12:07,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 13:12:07,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 13:12:07,984 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 13:12:08,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 13:12:08,018 INFO L208 MainTranslator]: Completed translation [2020-07-01 13:12:08,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:12:08 WrapperNode [2020-07-01 13:12:08,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 13:12:08,019 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 13:12:08,019 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 13:12:08,019 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 13:12:08,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:12:08" (1/1) ... [2020-07-01 13:12:08,037 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:12:08" (1/1) ... [2020-07-01 13:12:08,058 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 13:12:08,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 13:12:08,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 13:12:08,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 13:12:08,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:12:08" (1/1) ... [2020-07-01 13:12:08,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:12:08" (1/1) ... [2020-07-01 13:12:08,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:12:08" (1/1) ... [2020-07-01 13:12:08,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:12:08" (1/1) ... [2020-07-01 13:12:08,076 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:12:08" (1/1) ... [2020-07-01 13:12:08,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:12:08" (1/1) ... [2020-07-01 13:12:08,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:12:08" (1/1) ... [2020-07-01 13:12:08,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 13:12:08,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 13:12:08,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 13:12:08,085 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 13:12:08,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:12:08" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 13:12:08,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-01 13:12:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 13:12:08,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 13:12:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-01 13:12:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-01 13:12:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-01 13:12:08,394 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 13:12:08,394 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-01 13:12:08,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:12:08 BoogieIcfgContainer [2020-07-01 13:12:08,398 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 13:12:08,398 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 13:12:08,399 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 13:12:08,401 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 13:12:08,401 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:12:08" (1/1) ... [2020-07-01 13:12:08,415 INFO L313 BlockEncoder]: Initial Icfg 30 locations, 36 edges [2020-07-01 13:12:08,417 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 13:12:08,417 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 13:12:08,418 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 13:12:08,418 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 13:12:08,420 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 13:12:08,421 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 13:12:08,421 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 13:12:08,442 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 13:12:08,469 INFO L200 BlockEncoder]: SBE split 12 edges [2020-07-01 13:12:08,474 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-07-01 13:12:08,476 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 13:12:08,516 INFO L100 BaseMinimizeStates]: Removed 14 edges and 7 locations by large block encoding [2020-07-01 13:12:08,519 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-07-01 13:12:08,521 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 13:12:08,521 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 13:12:08,521 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 13:12:08,522 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 13:12:08,522 INFO L313 BlockEncoder]: Encoded RCFG 21 locations, 38 edges [2020-07-01 13:12:08,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:12:08 BasicIcfg [2020-07-01 13:12:08,523 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 13:12:08,524 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 13:12:08,524 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 13:12:08,527 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 13:12:08,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 01:12:07" (1/4) ... [2020-07-01 13:12:08,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37696e69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 01:12:08, skipping insertion in model container [2020-07-01 13:12:08,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:12:08" (2/4) ... [2020-07-01 13:12:08,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37696e69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 01:12:08, skipping insertion in model container [2020-07-01 13:12:08,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:12:08" (3/4) ... [2020-07-01 13:12:08,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37696e69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:12:08, skipping insertion in model container [2020-07-01 13:12:08,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:12:08" (4/4) ... [2020-07-01 13:12:08,531 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 13:12:08,542 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 13:12:08,549 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-07-01 13:12:08,563 INFO L251 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-07-01 13:12:08,586 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 13:12:08,587 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 13:12:08,587 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 13:12:08,587 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 13:12:08,587 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 13:12:08,587 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 13:12:08,587 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 13:12:08,587 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 13:12:08,602 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-07-01 13:12:08,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-07-01 13:12:08,609 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 13:12:08,609 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-07-01 13:12:08,610 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-07-01 13:12:08,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:12:08,616 INFO L82 PathProgramCache]: Analyzing trace with hash 164786450, now seen corresponding path program 1 times [2020-07-01 13:12:08,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:12:08,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104465769] [2020-07-01 13:12:08,626 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:12:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:12:08,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:12:08,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104465769] [2020-07-01 13:12:08,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 13:12:08,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-01 13:12:08,807 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410885410] [2020-07-01 13:12:08,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-01 13:12:08,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 13:12:08,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 13:12:08,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 13:12:08,829 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2020-07-01 13:12:08,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 13:12:08,939 INFO L93 Difference]: Finished difference Result 21 states and 38 transitions. [2020-07-01 13:12:08,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 13:12:08,941 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-07-01 13:12:08,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 13:12:08,955 INFO L225 Difference]: With dead ends: 21 [2020-07-01 13:12:08,955 INFO L226 Difference]: Without dead ends: 20 [2020-07-01 13:12:08,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 13:12:08,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-07-01 13:12:08,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-07-01 13:12:08,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-07-01 13:12:08,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 36 transitions. [2020-07-01 13:12:08,997 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 36 transitions. Word has length 5 [2020-07-01 13:12:08,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 13:12:08,998 INFO L479 AbstractCegarLoop]: Abstraction has 20 states and 36 transitions. [2020-07-01 13:12:08,999 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-01 13:12:08,999 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 36 transitions. [2020-07-01 13:12:08,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-07-01 13:12:08,999 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 13:12:08,999 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-07-01 13:12:09,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-01 13:12:09,002 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-07-01 13:12:09,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:12:09,002 INFO L82 PathProgramCache]: Analyzing trace with hash 164786452, now seen corresponding path program 1 times [2020-07-01 13:12:09,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:12:09,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063877065] [2020-07-01 13:12:09,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:12:09,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:12:09,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:12:09,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063877065] [2020-07-01 13:12:09,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 13:12:09,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-01 13:12:09,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76624914] [2020-07-01 13:12:09,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-01 13:12:09,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 13:12:09,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 13:12:09,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 13:12:09,049 INFO L87 Difference]: Start difference. First operand 20 states and 36 transitions. Second operand 3 states. [2020-07-01 13:12:09,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 13:12:09,120 INFO L93 Difference]: Finished difference Result 21 states and 36 transitions. [2020-07-01 13:12:09,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 13:12:09,121 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-07-01 13:12:09,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 13:12:09,122 INFO L225 Difference]: With dead ends: 21 [2020-07-01 13:12:09,122 INFO L226 Difference]: Without dead ends: 20 [2020-07-01 13:12:09,123 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 13:12:09,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-07-01 13:12:09,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-07-01 13:12:09,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-07-01 13:12:09,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 35 transitions. [2020-07-01 13:12:09,128 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 35 transitions. Word has length 5 [2020-07-01 13:12:09,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 13:12:09,128 INFO L479 AbstractCegarLoop]: Abstraction has 20 states and 35 transitions. [2020-07-01 13:12:09,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-01 13:12:09,129 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 35 transitions. [2020-07-01 13:12:09,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-07-01 13:12:09,129 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 13:12:09,129 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-07-01 13:12:09,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-01 13:12:09,130 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-07-01 13:12:09,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:12:09,130 INFO L82 PathProgramCache]: Analyzing trace with hash 164786453, now seen corresponding path program 1 times [2020-07-01 13:12:09,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:12:09,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972409015] [2020-07-01 13:12:09,131 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:12:09,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:12:09,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:12:09,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972409015] [2020-07-01 13:12:09,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 13:12:09,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-01 13:12:09,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542463017] [2020-07-01 13:12:09,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-01 13:12:09,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 13:12:09,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-01 13:12:09,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-01 13:12:09,167 INFO L87 Difference]: Start difference. First operand 20 states and 35 transitions. Second operand 4 states. [2020-07-01 13:12:09,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 13:12:09,225 INFO L93 Difference]: Finished difference Result 20 states and 35 transitions. [2020-07-01 13:12:09,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-01 13:12:09,225 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-07-01 13:12:09,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 13:12:09,226 INFO L225 Difference]: With dead ends: 20 [2020-07-01 13:12:09,226 INFO L226 Difference]: Without dead ends: 19 [2020-07-01 13:12:09,227 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-01 13:12:09,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-07-01 13:12:09,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-07-01 13:12:09,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-01 13:12:09,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 34 transitions. [2020-07-01 13:12:09,231 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 34 transitions. Word has length 5 [2020-07-01 13:12:09,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 13:12:09,231 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 34 transitions. [2020-07-01 13:12:09,231 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-01 13:12:09,232 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 34 transitions. [2020-07-01 13:12:09,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-07-01 13:12:09,232 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 13:12:09,232 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-07-01 13:12:09,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-01 13:12:09,232 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-07-01 13:12:09,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:12:09,233 INFO L82 PathProgramCache]: Analyzing trace with hash 813411697, now seen corresponding path program 1 times [2020-07-01 13:12:09,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:12:09,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247179236] [2020-07-01 13:12:09,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:12:09,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:12:09,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:12:09,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247179236] [2020-07-01 13:12:09,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 13:12:09,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-01 13:12:09,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055506715] [2020-07-01 13:12:09,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-01 13:12:09,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 13:12:09,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-01 13:12:09,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-01 13:12:09,288 INFO L87 Difference]: Start difference. First operand 19 states and 34 transitions. Second operand 4 states. [2020-07-01 13:12:09,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 13:12:09,351 INFO L93 Difference]: Finished difference Result 20 states and 34 transitions. [2020-07-01 13:12:09,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-01 13:12:09,352 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-07-01 13:12:09,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 13:12:09,353 INFO L225 Difference]: With dead ends: 20 [2020-07-01 13:12:09,353 INFO L226 Difference]: Without dead ends: 19 [2020-07-01 13:12:09,353 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-01 13:12:09,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-07-01 13:12:09,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-07-01 13:12:09,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-01 13:12:09,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 33 transitions. [2020-07-01 13:12:09,357 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 33 transitions. Word has length 6 [2020-07-01 13:12:09,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 13:12:09,357 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 33 transitions. [2020-07-01 13:12:09,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-01 13:12:09,358 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 33 transitions. [2020-07-01 13:12:09,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-07-01 13:12:09,358 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 13:12:09,358 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-07-01 13:12:09,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-01 13:12:09,359 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-07-01 13:12:09,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:12:09,359 INFO L82 PathProgramCache]: Analyzing trace with hash 813411698, now seen corresponding path program 1 times [2020-07-01 13:12:09,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:12:09,359 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428959486] [2020-07-01 13:12:09,360 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:12:09,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:12:09,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:12:09,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428959486] [2020-07-01 13:12:09,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 13:12:09,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-01 13:12:09,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039311533] [2020-07-01 13:12:09,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-01 13:12:09,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 13:12:09,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 13:12:09,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 13:12:09,397 INFO L87 Difference]: Start difference. First operand 19 states and 33 transitions. Second operand 3 states. [2020-07-01 13:12:09,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 13:12:09,454 INFO L93 Difference]: Finished difference Result 19 states and 33 transitions. [2020-07-01 13:12:09,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 13:12:09,455 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-07-01 13:12:09,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 13:12:09,456 INFO L225 Difference]: With dead ends: 19 [2020-07-01 13:12:09,456 INFO L226 Difference]: Without dead ends: 18 [2020-07-01 13:12:09,456 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 13:12:09,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-07-01 13:12:09,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-07-01 13:12:09,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-07-01 13:12:09,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 32 transitions. [2020-07-01 13:12:09,460 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 32 transitions. Word has length 6 [2020-07-01 13:12:09,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 13:12:09,460 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 32 transitions. [2020-07-01 13:12:09,460 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-01 13:12:09,460 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 32 transitions. [2020-07-01 13:12:09,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-07-01 13:12:09,461 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 13:12:09,461 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-07-01 13:12:09,461 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-01 13:12:09,461 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-07-01 13:12:09,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:12:09,462 INFO L82 PathProgramCache]: Analyzing trace with hash 813411695, now seen corresponding path program 1 times [2020-07-01 13:12:09,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:12:09,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430363375] [2020-07-01 13:12:09,462 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:12:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:12:09,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:12:09,498 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430363375] [2020-07-01 13:12:09,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 13:12:09,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-01 13:12:09,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779626831] [2020-07-01 13:12:09,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-01 13:12:09,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 13:12:09,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 13:12:09,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 13:12:09,500 INFO L87 Difference]: Start difference. First operand 18 states and 32 transitions. Second operand 3 states. [2020-07-01 13:12:09,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 13:12:09,543 INFO L93 Difference]: Finished difference Result 18 states and 32 transitions. [2020-07-01 13:12:09,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 13:12:09,545 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-07-01 13:12:09,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 13:12:09,546 INFO L225 Difference]: With dead ends: 18 [2020-07-01 13:12:09,546 INFO L226 Difference]: Without dead ends: 17 [2020-07-01 13:12:09,546 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 13:12:09,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-07-01 13:12:09,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-07-01 13:12:09,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-01 13:12:09,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 30 transitions. [2020-07-01 13:12:09,550 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 30 transitions. Word has length 6 [2020-07-01 13:12:09,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 13:12:09,550 INFO L479 AbstractCegarLoop]: Abstraction has 17 states and 30 transitions. [2020-07-01 13:12:09,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-01 13:12:09,550 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 30 transitions. [2020-07-01 13:12:09,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-01 13:12:09,551 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 13:12:09,551 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-01 13:12:09,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-01 13:12:09,551 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-07-01 13:12:09,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:12:09,552 INFO L82 PathProgramCache]: Analyzing trace with hash 4612450, now seen corresponding path program 1 times [2020-07-01 13:12:09,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:12:09,552 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612395012] [2020-07-01 13:12:09,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:12:09,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:12:09,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:12:09,604 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612395012] [2020-07-01 13:12:09,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 13:12:09,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-01 13:12:09,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967930443] [2020-07-01 13:12:09,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-01 13:12:09,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 13:12:09,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-01 13:12:09,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-01 13:12:09,606 INFO L87 Difference]: Start difference. First operand 17 states and 30 transitions. Second operand 5 states. [2020-07-01 13:12:09,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 13:12:09,706 INFO L93 Difference]: Finished difference Result 17 states and 30 transitions. [2020-07-01 13:12:09,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-01 13:12:09,706 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-07-01 13:12:09,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 13:12:09,707 INFO L225 Difference]: With dead ends: 17 [2020-07-01 13:12:09,707 INFO L226 Difference]: Without dead ends: 16 [2020-07-01 13:12:09,708 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-01 13:12:09,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-07-01 13:12:09,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-07-01 13:12:09,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-07-01 13:12:09,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 28 transitions. [2020-07-01 13:12:09,711 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 28 transitions. Word has length 8 [2020-07-01 13:12:09,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 13:12:09,712 INFO L479 AbstractCegarLoop]: Abstraction has 16 states and 28 transitions. [2020-07-01 13:12:09,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-01 13:12:09,712 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 28 transitions. [2020-07-01 13:12:09,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-01 13:12:09,713 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 13:12:09,713 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-01 13:12:09,713 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-01 13:12:09,713 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-07-01 13:12:09,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:12:09,714 INFO L82 PathProgramCache]: Analyzing trace with hash 4612452, now seen corresponding path program 1 times [2020-07-01 13:12:09,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:12:09,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94484092] [2020-07-01 13:12:09,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:12:09,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:12:09,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:12:09,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94484092] [2020-07-01 13:12:09,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 13:12:09,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-01 13:12:09,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403438730] [2020-07-01 13:12:09,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-01 13:12:09,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 13:12:09,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-01 13:12:09,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-01 13:12:09,809 INFO L87 Difference]: Start difference. First operand 16 states and 28 transitions. Second operand 7 states. [2020-07-01 13:12:09,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 13:12:09,942 INFO L93 Difference]: Finished difference Result 20 states and 34 transitions. [2020-07-01 13:12:09,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-01 13:12:09,943 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2020-07-01 13:12:09,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 13:12:09,944 INFO L225 Difference]: With dead ends: 20 [2020-07-01 13:12:09,944 INFO L226 Difference]: Without dead ends: 19 [2020-07-01 13:12:09,944 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-07-01 13:12:09,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-07-01 13:12:09,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2020-07-01 13:12:09,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-07-01 13:12:09,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 30 transitions. [2020-07-01 13:12:09,949 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 30 transitions. Word has length 8 [2020-07-01 13:12:09,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 13:12:09,949 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 30 transitions. [2020-07-01 13:12:09,949 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-01 13:12:09,950 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 30 transitions. [2020-07-01 13:12:09,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-01 13:12:09,951 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 13:12:09,951 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-01 13:12:09,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-01 13:12:09,951 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-07-01 13:12:09,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:12:09,951 INFO L82 PathProgramCache]: Analyzing trace with hash -28846887, now seen corresponding path program 1 times [2020-07-01 13:12:09,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:12:09,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198462034] [2020-07-01 13:12:09,952 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:12:09,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:12:09,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:12:09,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198462034] [2020-07-01 13:12:09,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 13:12:09,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-01 13:12:09,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959945932] [2020-07-01 13:12:10,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-01 13:12:10,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 13:12:10,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-01 13:12:10,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-01 13:12:10,000 INFO L87 Difference]: Start difference. First operand 18 states and 30 transitions. Second operand 5 states. [2020-07-01 13:12:10,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 13:12:10,095 INFO L93 Difference]: Finished difference Result 19 states and 32 transitions. [2020-07-01 13:12:10,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-01 13:12:10,095 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-07-01 13:12:10,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 13:12:10,096 INFO L225 Difference]: With dead ends: 19 [2020-07-01 13:12:10,096 INFO L226 Difference]: Without dead ends: 18 [2020-07-01 13:12:10,097 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-01 13:12:10,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-07-01 13:12:10,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2020-07-01 13:12:10,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-01 13:12:10,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 28 transitions. [2020-07-01 13:12:10,101 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 28 transitions. Word has length 11 [2020-07-01 13:12:10,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 13:12:10,102 INFO L479 AbstractCegarLoop]: Abstraction has 17 states and 28 transitions. [2020-07-01 13:12:10,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-01 13:12:10,102 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 28 transitions. [2020-07-01 13:12:10,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-01 13:12:10,103 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 13:12:10,103 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-01 13:12:10,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-01 13:12:10,103 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-07-01 13:12:10,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:12:10,103 INFO L82 PathProgramCache]: Analyzing trace with hash -28846885, now seen corresponding path program 1 times [2020-07-01 13:12:10,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:12:10,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584059169] [2020-07-01 13:12:10,104 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:12:10,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:12:10,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:12:10,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584059169] [2020-07-01 13:12:10,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 13:12:10,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-01 13:12:10,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458104756] [2020-07-01 13:12:10,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-01 13:12:10,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 13:12:10,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-01 13:12:10,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-01 13:12:10,170 INFO L87 Difference]: Start difference. First operand 17 states and 28 transitions. Second operand 6 states. [2020-07-01 13:12:10,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 13:12:10,273 INFO L93 Difference]: Finished difference Result 22 states and 35 transitions. [2020-07-01 13:12:10,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-01 13:12:10,274 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-07-01 13:12:10,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 13:12:10,275 INFO L225 Difference]: With dead ends: 22 [2020-07-01 13:12:10,275 INFO L226 Difference]: Without dead ends: 21 [2020-07-01 13:12:10,275 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-07-01 13:12:10,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-07-01 13:12:10,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2020-07-01 13:12:10,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-01 13:12:10,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 31 transitions. [2020-07-01 13:12:10,280 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 31 transitions. Word has length 11 [2020-07-01 13:12:10,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 13:12:10,280 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 31 transitions. [2020-07-01 13:12:10,280 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-01 13:12:10,280 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 31 transitions. [2020-07-01 13:12:10,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-01 13:12:10,281 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 13:12:10,281 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-01 13:12:10,281 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-01 13:12:10,281 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-07-01 13:12:10,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:12:10,282 INFO L82 PathProgramCache]: Analyzing trace with hash -28846884, now seen corresponding path program 1 times [2020-07-01 13:12:10,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:12:10,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869552786] [2020-07-01 13:12:10,283 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:12:10,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:12:10,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:12:10,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869552786] [2020-07-01 13:12:10,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 13:12:10,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-01 13:12:10,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736995428] [2020-07-01 13:12:10,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-01 13:12:10,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 13:12:10,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-01 13:12:10,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-01 13:12:10,377 INFO L87 Difference]: Start difference. First operand 19 states and 31 transitions. Second operand 7 states. [2020-07-01 13:12:10,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 13:12:10,524 INFO L93 Difference]: Finished difference Result 21 states and 34 transitions. [2020-07-01 13:12:10,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-01 13:12:10,524 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2020-07-01 13:12:10,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 13:12:10,525 INFO L225 Difference]: With dead ends: 21 [2020-07-01 13:12:10,525 INFO L226 Difference]: Without dead ends: 20 [2020-07-01 13:12:10,526 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-07-01 13:12:10,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-07-01 13:12:10,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2020-07-01 13:12:10,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-01 13:12:10,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 30 transitions. [2020-07-01 13:12:10,529 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 30 transitions. Word has length 11 [2020-07-01 13:12:10,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 13:12:10,530 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 30 transitions. [2020-07-01 13:12:10,530 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-01 13:12:10,530 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 30 transitions. [2020-07-01 13:12:10,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-01 13:12:10,531 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 13:12:10,531 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-01 13:12:10,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-01 13:12:10,531 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-07-01 13:12:10,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:12:10,532 INFO L82 PathProgramCache]: Analyzing trace with hash -383674474, now seen corresponding path program 1 times [2020-07-01 13:12:10,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:12:10,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303429866] [2020-07-01 13:12:10,532 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:12:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:12:10,825 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:12:10,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303429866] [2020-07-01 13:12:10,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728338620] [2020-07-01 13:12:10,826 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-01 13:12:10,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:12:10,884 INFO L264 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 31 conjunts are in the unsatisfiable core [2020-07-01 13:12:10,891 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:12:10,938 INFO L435 ElimStorePlain]: Different costs {0=[|v_#length_15|], 1=[|v_#valid_26|]} [2020-07-01 13:12:10,951 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-07-01 13:12:10,961 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2020-07-01 13:12:10,962 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-01 13:12:10,972 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-01 13:12:10,980 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2020-07-01 13:12:10,980 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-01 13:12:10,989 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-01 13:12:10,989 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-07-01 13:12:10,990 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:21 [2020-07-01 13:12:11,020 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2020-07-01 13:12:11,021 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-01 13:12:11,034 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-01 13:12:11,035 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-01 13:12:11,035 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:30 [2020-07-01 13:12:11,090 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2020-07-01 13:12:11,091 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-01 13:12:11,102 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-01 13:12:11,104 INFO L539 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-07-01 13:12:11,105 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:44, output treesize:40 [2020-07-01 13:12:11,226 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-01 13:12:11,227 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 23 [2020-07-01 13:12:11,228 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 13:12:11,231 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-07-01 13:12:11,257 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-01 13:12:11,259 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-01 13:12:11,262 INFO L477 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-01 13:12:11,264 INFO L539 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-01 13:12:11,264 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:52, output treesize:34 [2020-07-01 13:12:11,319 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 13:12:11,374 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:12:11,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-01 13:12:11,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2020-07-01 13:12:11,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689537415] [2020-07-01 13:12:11,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-01 13:12:11,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 13:12:11,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-01 13:12:11,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2020-07-01 13:12:11,376 INFO L87 Difference]: Start difference. First operand 19 states and 30 transitions. Second operand 17 states. [2020-07-01 13:12:11,803 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2020-07-01 13:12:11,969 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2020-07-01 13:12:12,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 13:12:12,232 INFO L93 Difference]: Finished difference Result 32 states and 49 transitions. [2020-07-01 13:12:12,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-01 13:12:12,233 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 14 [2020-07-01 13:12:12,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 13:12:12,234 INFO L225 Difference]: With dead ends: 32 [2020-07-01 13:12:12,234 INFO L226 Difference]: Without dead ends: 31 [2020-07-01 13:12:12,235 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2020-07-01 13:12:12,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-07-01 13:12:12,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 28. [2020-07-01 13:12:12,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-07-01 13:12:12,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 46 transitions. [2020-07-01 13:12:12,241 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 46 transitions. Word has length 14 [2020-07-01 13:12:12,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 13:12:12,242 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 46 transitions. [2020-07-01 13:12:12,242 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-01 13:12:12,242 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 46 transitions. [2020-07-01 13:12:12,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-01 13:12:12,242 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 13:12:12,243 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-01 13:12:12,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-07-01 13:12:12,446 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-07-01 13:12:12,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:12:12,446 INFO L82 PathProgramCache]: Analyzing trace with hash -383674473, now seen corresponding path program 1 times [2020-07-01 13:12:12,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:12:12,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557183598] [2020-07-01 13:12:12,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:12:12,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:12:12,506 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:12:12,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557183598] [2020-07-01 13:12:12,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883175689] [2020-07-01 13:12:12,525 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-01 13:12:12,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:12:12,564 INFO L264 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 13:12:12,565 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:12:12,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:12:12,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-01 13:12:12,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 7 [2020-07-01 13:12:12,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300167247] [2020-07-01 13:12:12,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-01 13:12:12,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 13:12:12,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-01 13:12:12,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-07-01 13:12:12,580 INFO L87 Difference]: Start difference. First operand 28 states and 46 transitions. Second operand 8 states. [2020-07-01 13:12:12,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 13:12:12,706 INFO L93 Difference]: Finished difference Result 29 states and 46 transitions. [2020-07-01 13:12:12,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-01 13:12:12,707 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-07-01 13:12:12,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 13:12:12,707 INFO L225 Difference]: With dead ends: 29 [2020-07-01 13:12:12,707 INFO L226 Difference]: Without dead ends: 28 [2020-07-01 13:12:12,708 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-07-01 13:12:12,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-07-01 13:12:12,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-07-01 13:12:12,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-07-01 13:12:12,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 44 transitions. [2020-07-01 13:12:12,714 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 44 transitions. Word has length 14 [2020-07-01 13:12:12,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 13:12:12,714 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 44 transitions. [2020-07-01 13:12:12,714 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-01 13:12:12,714 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 44 transitions. [2020-07-01 13:12:12,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-01 13:12:12,715 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 13:12:12,715 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-01 13:12:12,916 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-07-01 13:12:12,916 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-07-01 13:12:12,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:12:12,916 INFO L82 PathProgramCache]: Analyzing trace with hash 992524143, now seen corresponding path program 1 times [2020-07-01 13:12:12,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:12:12,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770637964] [2020-07-01 13:12:12,917 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:12:12,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:12:12,948 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:12:12,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770637964] [2020-07-01 13:12:12,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 13:12:12,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-01 13:12:12,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641065013] [2020-07-01 13:12:12,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-01 13:12:12,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 13:12:12,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-01 13:12:12,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-01 13:12:12,950 INFO L87 Difference]: Start difference. First operand 28 states and 44 transitions. Second operand 4 states. [2020-07-01 13:12:13,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 13:12:13,021 INFO L93 Difference]: Finished difference Result 70 states and 110 transitions. [2020-07-01 13:12:13,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-01 13:12:13,023 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-07-01 13:12:13,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 13:12:13,024 INFO L225 Difference]: With dead ends: 70 [2020-07-01 13:12:13,024 INFO L226 Difference]: Without dead ends: 53 [2020-07-01 13:12:13,025 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-01 13:12:13,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-07-01 13:12:13,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 42. [2020-07-01 13:12:13,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-07-01 13:12:13,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 68 transitions. [2020-07-01 13:12:13,034 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 68 transitions. Word has length 15 [2020-07-01 13:12:13,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 13:12:13,034 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 68 transitions. [2020-07-01 13:12:13,034 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-01 13:12:13,034 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 68 transitions. [2020-07-01 13:12:13,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-01 13:12:13,035 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 13:12:13,035 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-01 13:12:13,035 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-01 13:12:13,035 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-07-01 13:12:13,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:12:13,036 INFO L82 PathProgramCache]: Analyzing trace with hash 992525104, now seen corresponding path program 1 times [2020-07-01 13:12:13,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:12:13,036 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947612949] [2020-07-01 13:12:13,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:12:13,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:12:13,126 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:12:13,126 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947612949] [2020-07-01 13:12:13,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472934039] [2020-07-01 13:12:13,127 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-01 13:12:13,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:12:13,163 INFO L264 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 13:12:13,164 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:12:13,175 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:12:13,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-01 13:12:13,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 8 [2020-07-01 13:12:13,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835002131] [2020-07-01 13:12:13,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-01 13:12:13,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 13:12:13,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-01 13:12:13,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-01 13:12:13,177 INFO L87 Difference]: Start difference. First operand 42 states and 68 transitions. Second operand 9 states. [2020-07-01 13:12:13,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 13:12:13,345 INFO L93 Difference]: Finished difference Result 47 states and 80 transitions. [2020-07-01 13:12:13,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-01 13:12:13,345 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-07-01 13:12:13,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 13:12:13,346 INFO L225 Difference]: With dead ends: 47 [2020-07-01 13:12:13,346 INFO L226 Difference]: Without dead ends: 46 [2020-07-01 13:12:13,347 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2020-07-01 13:12:13,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-07-01 13:12:13,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2020-07-01 13:12:13,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-07-01 13:12:13,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 64 transitions. [2020-07-01 13:12:13,355 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 64 transitions. Word has length 15 [2020-07-01 13:12:13,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 13:12:13,355 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 64 transitions. [2020-07-01 13:12:13,355 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-01 13:12:13,355 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 64 transitions. [2020-07-01 13:12:13,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-01 13:12:13,356 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 13:12:13,356 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-01 13:12:13,557 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-07-01 13:12:13,557 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-07-01 13:12:13,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:12:13,558 INFO L82 PathProgramCache]: Analyzing trace with hash 992525105, now seen corresponding path program 1 times [2020-07-01 13:12:13,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:12:13,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927082236] [2020-07-01 13:12:13,558 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:12:13,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:12:13,642 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:12:13,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927082236] [2020-07-01 13:12:13,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 13:12:13,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-01 13:12:13,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564232175] [2020-07-01 13:12:13,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-01 13:12:13,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 13:12:13,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-01 13:12:13,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-01 13:12:13,644 INFO L87 Difference]: Start difference. First operand 42 states and 64 transitions. Second operand 8 states. [2020-07-01 13:12:13,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 13:12:13,825 INFO L93 Difference]: Finished difference Result 95 states and 146 transitions. [2020-07-01 13:12:13,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-01 13:12:13,826 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-07-01 13:12:13,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 13:12:13,827 INFO L225 Difference]: With dead ends: 95 [2020-07-01 13:12:13,827 INFO L226 Difference]: Without dead ends: 66 [2020-07-01 13:12:13,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-07-01 13:12:13,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-07-01 13:12:13,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 59. [2020-07-01 13:12:13,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-07-01 13:12:13,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 87 transitions. [2020-07-01 13:12:13,838 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 87 transitions. Word has length 15 [2020-07-01 13:12:13,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 13:12:13,838 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 87 transitions. [2020-07-01 13:12:13,838 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-01 13:12:13,838 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 87 transitions. [2020-07-01 13:12:13,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-01 13:12:13,839 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 13:12:13,839 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-01 13:12:13,839 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-07-01 13:12:13,839 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-07-01 13:12:13,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:12:13,839 INFO L82 PathProgramCache]: Analyzing trace with hash -393242541, now seen corresponding path program 1 times [2020-07-01 13:12:13,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:12:13,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981574650] [2020-07-01 13:12:13,840 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:12:13,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:12:14,046 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:12:14,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981574650] [2020-07-01 13:12:14,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943398208] [2020-07-01 13:12:14,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-01 13:12:14,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:12:14,096 INFO L264 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 27 conjunts are in the unsatisfiable core [2020-07-01 13:12:14,097 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:12:14,109 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2020-07-01 13:12:14,109 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-01 13:12:14,120 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-01 13:12:14,121 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-07-01 13:12:14,122 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:28, output treesize:24 [2020-07-01 13:12:14,262 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-01 13:12:14,263 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 18 [2020-07-01 13:12:14,264 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 13:12:14,264 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-07-01 13:12:14,279 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-01 13:12:14,281 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-01 13:12:14,283 INFO L477 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-01 13:12:14,284 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 13:12:14,285 INFO L539 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-07-01 13:12:14,285 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:36, output treesize:23 [2020-07-01 13:12:14,323 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 13:12:14,326 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:12:14,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-01 13:12:14,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 14 [2020-07-01 13:12:14,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614592962] [2020-07-01 13:12:14,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-01 13:12:14,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 13:12:14,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-01 13:12:14,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-07-01 13:12:14,328 INFO L87 Difference]: Start difference. First operand 59 states and 87 transitions. Second operand 15 states. [2020-07-01 13:12:15,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 13:12:15,170 INFO L93 Difference]: Finished difference Result 84 states and 128 transitions. [2020-07-01 13:12:15,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-01 13:12:15,171 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 15 [2020-07-01 13:12:15,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 13:12:15,172 INFO L225 Difference]: With dead ends: 84 [2020-07-01 13:12:15,172 INFO L226 Difference]: Without dead ends: 83 [2020-07-01 13:12:15,173 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2020-07-01 13:12:15,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-07-01 13:12:15,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 77. [2020-07-01 13:12:15,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-07-01 13:12:15,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 117 transitions. [2020-07-01 13:12:15,186 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 117 transitions. Word has length 15 [2020-07-01 13:12:15,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 13:12:15,186 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 117 transitions. [2020-07-01 13:12:15,186 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-01 13:12:15,186 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 117 transitions. [2020-07-01 13:12:15,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-01 13:12:15,187 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 13:12:15,187 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-01 13:12:15,388 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-01 13:12:15,388 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-07-01 13:12:15,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:12:15,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1818487592, now seen corresponding path program 2 times [2020-07-01 13:12:15,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:12:15,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590740245] [2020-07-01 13:12:15,389 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:12:15,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:12:15,627 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:12:15,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590740245] [2020-07-01 13:12:15,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459755179] [2020-07-01 13:12:15,628 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-01 13:12:15,675 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-07-01 13:12:15,675 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-01 13:12:15,676 INFO L264 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 30 conjunts are in the unsatisfiable core [2020-07-01 13:12:15,678 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:12:15,698 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-01 13:12:15,699 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2020-07-01 13:12:15,699 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-01 13:12:15,719 INFO L619 ElimStorePlain]: treesize reduction 10, result has 64.3 percent of original size [2020-07-01 13:12:15,719 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-07-01 13:12:15,720 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:13, output treesize:9 [2020-07-01 13:12:15,743 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2020-07-01 13:12:15,743 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-01 13:12:15,750 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-01 13:12:15,750 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-07-01 13:12:15,750 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:23, output treesize:19 [2020-07-01 13:12:15,875 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-01 13:12:15,875 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 20 [2020-07-01 13:12:15,876 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 13:12:15,877 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-07-01 13:12:15,889 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-01 13:12:15,891 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-01 13:12:15,892 INFO L477 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-01 13:12:15,893 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-07-01 13:12:15,893 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:38, output treesize:23 [2020-07-01 13:12:15,931 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 13:12:15,934 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-01 13:12:15,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-01 13:12:15,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 16 [2020-07-01 13:12:15,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537367947] [2020-07-01 13:12:15,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-01 13:12:15,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 13:12:15,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-01 13:12:15,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2020-07-01 13:12:15,936 INFO L87 Difference]: Start difference. First operand 77 states and 117 transitions. Second operand 17 states. [2020-07-01 13:12:17,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 13:12:17,067 INFO L93 Difference]: Finished difference Result 87 states and 136 transitions. [2020-07-01 13:12:17,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-01 13:12:17,067 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 19 [2020-07-01 13:12:17,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 13:12:17,068 INFO L225 Difference]: With dead ends: 87 [2020-07-01 13:12:17,068 INFO L226 Difference]: Without dead ends: 86 [2020-07-01 13:12:17,069 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=207, Invalid=663, Unknown=0, NotChecked=0, Total=870 [2020-07-01 13:12:17,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-07-01 13:12:17,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 50. [2020-07-01 13:12:17,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-07-01 13:12:17,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 75 transitions. [2020-07-01 13:12:17,079 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 75 transitions. Word has length 19 [2020-07-01 13:12:17,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 13:12:17,080 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 75 transitions. [2020-07-01 13:12:17,080 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-01 13:12:17,080 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 75 transitions. [2020-07-01 13:12:17,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-07-01 13:12:17,081 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 13:12:17,081 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-07-01 13:12:17,281 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-07-01 13:12:17,282 INFO L427 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-07-01 13:12:17,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:12:17,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1731453000, now seen corresponding path program 2 times [2020-07-01 13:12:17,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:12:17,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905982572] [2020-07-01 13:12:17,283 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:12:17,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:12:17,549 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:12:17,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905982572] [2020-07-01 13:12:17,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307824380] [2020-07-01 13:12:17,564 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-01 13:12:17,610 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-07-01 13:12:17,611 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-01 13:12:17,613 INFO L264 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 54 conjunts are in the unsatisfiable core [2020-07-01 13:12:17,615 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:12:17,633 INFO L435 ElimStorePlain]: Different costs {0=[|v_#length_17|], 1=[|v_#valid_27|]} [2020-07-01 13:12:17,638 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-07-01 13:12:17,639 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2020-07-01 13:12:17,639 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-01 13:12:17,649 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-01 13:12:17,653 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2020-07-01 13:12:17,654 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-01 13:12:17,662 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-01 13:12:17,663 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-07-01 13:12:17,663 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:21 [2020-07-01 13:12:17,691 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2020-07-01 13:12:17,691 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-01 13:12:17,699 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-01 13:12:17,700 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-01 13:12:17,700 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2020-07-01 13:12:17,733 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2020-07-01 13:12:17,733 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-01 13:12:17,741 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-01 13:12:17,741 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-01 13:12:17,741 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:28 [2020-07-01 13:12:17,815 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-01 13:12:17,815 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2020-07-01 13:12:17,816 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 13:12:17,817 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-07-01 13:12:17,827 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-01 13:12:17,828 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-01 13:12:17,829 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-01 13:12:17,829 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:47, output treesize:33 [2020-07-01 13:12:17,876 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 13:12:17,973 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-01 13:12:17,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-01 13:12:17,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2020-07-01 13:12:17,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983721394] [2020-07-01 13:12:17,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-07-01 13:12:17,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 13:12:17,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-07-01 13:12:17,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2020-07-01 13:12:17,976 INFO L87 Difference]: Start difference. First operand 50 states and 75 transitions. Second operand 20 states. [2020-07-01 13:12:19,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 13:12:19,896 INFO L93 Difference]: Finished difference Result 64 states and 97 transitions. [2020-07-01 13:12:19,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-07-01 13:12:19,896 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 20 [2020-07-01 13:12:19,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 13:12:19,897 INFO L225 Difference]: With dead ends: 64 [2020-07-01 13:12:19,897 INFO L226 Difference]: Without dead ends: 45 [2020-07-01 13:12:19,898 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=277, Invalid=1205, Unknown=0, NotChecked=0, Total=1482 [2020-07-01 13:12:19,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-07-01 13:12:19,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-07-01 13:12:19,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-07-01 13:12:19,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 70 transitions. [2020-07-01 13:12:19,907 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 70 transitions. Word has length 20 [2020-07-01 13:12:19,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 13:12:19,907 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 70 transitions. [2020-07-01 13:12:19,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-07-01 13:12:19,907 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 70 transitions. [2020-07-01 13:12:19,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-01 13:12:19,908 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 13:12:19,908 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2020-07-01 13:12:20,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-01 13:12:20,109 INFO L427 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-07-01 13:12:20,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:12:20,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1866836712, now seen corresponding path program 1 times [2020-07-01 13:12:20,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:12:20,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428580392] [2020-07-01 13:12:20,110 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:12:20,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:12:20,270 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-01 13:12:20,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428580392] [2020-07-01 13:12:20,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721099482] [2020-07-01 13:12:20,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-01 13:12:20,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:12:20,328 INFO L264 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 38 conjunts are in the unsatisfiable core [2020-07-01 13:12:20,330 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:12:20,334 INFO L435 ElimStorePlain]: Different costs {0=[|v_#length_18|], 1=[|v_#valid_28|]} [2020-07-01 13:12:20,338 INFO L189 IndexEqualityManager]: detected not equals via solver [2020-07-01 13:12:20,339 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2020-07-01 13:12:20,340 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-01 13:12:20,347 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-01 13:12:20,352 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2020-07-01 13:12:20,352 INFO L539 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-01 13:12:20,359 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-01 13:12:20,359 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-07-01 13:12:20,359 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:18 [2020-07-01 13:12:20,381 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2020-07-01 13:12:20,382 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-01 13:12:20,387 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-01 13:12:20,387 INFO L539 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-01 13:12:20,387 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2020-07-01 13:12:20,409 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2020-07-01 13:12:20,410 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-01 13:12:20,416 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-01 13:12:20,417 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-07-01 13:12:20,417 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:32, output treesize:28 [2020-07-01 13:12:20,518 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-01 13:12:20,518 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 22 [2020-07-01 13:12:20,519 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 13:12:20,520 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-07-01 13:12:20,530 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-01 13:12:20,531 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-01 13:12:20,532 INFO L539 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-07-01 13:12:20,533 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:47, output treesize:23 [2020-07-01 13:12:20,564 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 13:12:20,569 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-01 13:12:20,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-01 13:12:20,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2020-07-01 13:12:20,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091990703] [2020-07-01 13:12:20,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-01 13:12:20,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 13:12:20,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-01 13:12:20,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-07-01 13:12:20,570 INFO L87 Difference]: Start difference. First operand 45 states and 70 transitions. Second operand 15 states. [2020-07-01 13:12:26,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 13:12:26,301 INFO L93 Difference]: Finished difference Result 63 states and 97 transitions. [2020-07-01 13:12:26,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-01 13:12:26,302 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 26 [2020-07-01 13:12:26,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 13:12:26,302 INFO L225 Difference]: With dead ends: 63 [2020-07-01 13:12:26,302 INFO L226 Difference]: Without dead ends: 0 [2020-07-01 13:12:26,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=152, Invalid=400, Unknown=0, NotChecked=0, Total=552 [2020-07-01 13:12:26,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-01 13:12:26,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-01 13:12:26,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-01 13:12:26,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-01 13:12:26,304 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2020-07-01 13:12:26,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 13:12:26,304 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 13:12:26,304 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-01 13:12:26,304 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-01 13:12:26,304 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 13:12:26,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-01 13:12:26,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-01 13:12:26,622 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 147 [2020-07-01 13:12:26,734 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 157 [2020-07-01 13:12:32,356 WARN L192 SmtUtils]: Spent 5.62 s on a formula simplification. DAG size of input: 143 DAG size of output: 93 [2020-07-01 13:12:33,362 WARN L192 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 152 DAG size of output: 92 [2020-07-01 13:12:33,366 INFO L268 CegarLoopResult]: For program point L29(lines 29 31) no Hoare annotation was computed. [2020-07-01 13:12:33,366 INFO L268 CegarLoopResult]: For program point L29-2(lines 26 41) no Hoare annotation was computed. [2020-07-01 13:12:33,366 INFO L268 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-07-01 13:12:33,366 INFO L268 CegarLoopResult]: For program point L19-3(lines 19 21) no Hoare annotation was computed. [2020-07-01 13:12:33,366 INFO L264 CegarLoopResult]: At program point L19-5(lines 19 21) the Hoare annotation is: (let ((.cse24 (select |#length| ULTIMATE.start_cstrpbrk_~s1.base)) (.cse19 (select |#length| ULTIMATE.start_main_~nondetString1~0.base))) (let ((.cse0 (= 0 ULTIMATE.start_cstrpbrk_~scanp~0.offset)) (.cse1 (= .cse19 ULTIMATE.start_main_~length1~0)) (.cse2 (<= 1 ULTIMATE.start_main_~length2~0)) (.cse3 (exists ((ULTIMATE.start_main_~nondetString2~0.offset Int)) (and (<= 0 ULTIMATE.start_main_~nondetString2~0.offset) (= 0 (select (select |#memory_int| ULTIMATE.start_cstrpbrk_~s2.base) (+ ULTIMATE.start_main_~nondetString2~0.offset (select |#length| ULTIMATE.start_cstrpbrk_~s2.base) (- 1)))) (<= ULTIMATE.start_main_~nondetString2~0.offset 0)))) (.cse5 (= 1 (select |#valid| ULTIMATE.start_main_~nondetString2~0.base))) (.cse8 (= 1 (select |#valid| ULTIMATE.start_cstrpbrk_~s1.base))) (.cse9 (= 0 ULTIMATE.start_cstrpbrk_~s2.offset)) (.cse10 (<= 1 (select |#length| ULTIMATE.start_cstrpbrk_~s2.base))) (.cse11 (= 0 ULTIMATE.start_main_~nondetString2~0.offset)) (.cse12 (= 0 ULTIMATE.start_main_~nondetString1~0.offset)) (.cse13 (= 1 (select |#valid| ULTIMATE.start_cstrpbrk_~s2.base))) (.cse14 (<= 1 ULTIMATE.start_cstrpbrk_~s1.offset)) (.cse16 (= 1 (select |#valid| ULTIMATE.start_main_~nondetString1~0.base))) (.cse18 (exists ((ULTIMATE.start_main_~nondetString2~0.offset Int)) (and (= 0 (select (select |#memory_int| ULTIMATE.start_cstrpbrk_~scanp~0.base) (+ (select |#length| ULTIMATE.start_cstrpbrk_~scanp~0.base) ULTIMATE.start_main_~nondetString2~0.offset (- 1)))) (<= 0 ULTIMATE.start_main_~nondetString2~0.offset) (<= ULTIMATE.start_main_~nondetString2~0.offset 0)))) (.cse20 (= 1 (select |#valid| ULTIMATE.start_cstrpbrk_~scanp~0.base))) (.cse15 (= 0 (select (select |#memory_int| ULTIMATE.start_cstrpbrk_~s1.base) (+ .cse24 (- 1))))) (.cse4 (not (= ULTIMATE.start_main_~nondetString1~0.base ULTIMATE.start_main_~nondetString2~0.base))) (.cse17 (= 0 (select (select |#memory_int| ULTIMATE.start_main_~nondetString1~0.base) (+ .cse19 (- 1))))) (.cse6 (= (select |#length| ULTIMATE.start_main_~nondetString2~0.base) ULTIMATE.start_main_~length2~0)) (.cse7 (<= (+ ULTIMATE.start_cstrpbrk_~s1.offset 1) .cse24))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (exists ((ULTIMATE.start_main_~length2~0 Int) (ULTIMATE.start_main_~nondetString2~0.offset Int)) (and (<= 1 ULTIMATE.start_main_~length2~0) (<= (+ ULTIMATE.start_main_~length2~0 ULTIMATE.start_main_~nondetString2~0.offset) (select |#length| ULTIMATE.start_cstrpbrk_~scanp~0.base)) (= 0 (select (select |#memory_int| ULTIMATE.start_cstrpbrk_~scanp~0.base) (+ ULTIMATE.start_main_~length2~0 ULTIMATE.start_main_~nondetString2~0.offset (- 1)))) (<= ULTIMATE.start_cstrpbrk_~scanp~0.offset ULTIMATE.start_main_~nondetString2~0.offset))) .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (<= ULTIMATE.start_cstrpbrk_~s1.offset 1) .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 (<= 1 .cse19) .cse20) (and (let ((.cse21 (= 0 ULTIMATE.start_cstrpbrk_~sc~0)) (.cse22 (<= 1 ULTIMATE.start_main_~length1~0)) (.cse23 (select |#length| ULTIMATE.start_cstrpbrk_~scanp~0.base))) (or (and .cse1 .cse2 (not .cse21) .cse3 .cse5 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse22 (<= (+ ULTIMATE.start_cstrpbrk_~scanp~0.offset 1) .cse23) .cse16 .cse18 (<= 1 ULTIMATE.start_cstrpbrk_~scanp~0.offset) .cse20) (and .cse0 .cse1 .cse2 .cse21 .cse3 .cse5 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse22 (<= 1 .cse23) .cse16 .cse18 .cse20))) .cse15 .cse4 .cse17 .cse6 .cse7)))) [2020-07-01 13:12:33,367 INFO L264 CegarLoopResult]: At program point L19-6(lines 18 22) the Hoare annotation is: (let ((.cse15 (select |#length| ULTIMATE.start_main_~nondetString1~0.base))) (let ((.cse0 (= .cse15 ULTIMATE.start_main_~length1~0)) (.cse1 (<= 1 ULTIMATE.start_main_~length2~0)) (.cse2 (exists ((ULTIMATE.start_main_~nondetString2~0.offset Int)) (and (<= 0 ULTIMATE.start_main_~nondetString2~0.offset) (= 0 (select (select |#memory_int| ULTIMATE.start_cstrpbrk_~s2.base) (+ ULTIMATE.start_main_~nondetString2~0.offset (select |#length| ULTIMATE.start_cstrpbrk_~s2.base) (- 1)))) (<= ULTIMATE.start_main_~nondetString2~0.offset 0)))) (.cse3 (not (= ULTIMATE.start_main_~nondetString1~0.base ULTIMATE.start_main_~nondetString2~0.base))) (.cse4 (= 1 (select |#valid| ULTIMATE.start_main_~nondetString2~0.base))) (.cse5 (= (select |#length| ULTIMATE.start_main_~nondetString2~0.base) ULTIMATE.start_main_~length2~0)) (.cse6 (= 1 (select |#valid| ULTIMATE.start_cstrpbrk_~s1.base))) (.cse7 (= 0 ULTIMATE.start_cstrpbrk_~s2.offset)) (.cse8 (<= 1 (select |#length| ULTIMATE.start_cstrpbrk_~s2.base))) (.cse9 (= 0 ULTIMATE.start_main_~nondetString2~0.offset)) (.cse10 (= 0 ULTIMATE.start_main_~nondetString1~0.offset)) (.cse11 (= 1 (select |#valid| ULTIMATE.start_cstrpbrk_~s2.base))) (.cse13 (select |#length| ULTIMATE.start_cstrpbrk_~s1.base)) (.cse12 (= 1 (select |#valid| ULTIMATE.start_main_~nondetString1~0.base))) (.cse14 (= 0 (select (select |#memory_int| ULTIMATE.start_main_~nondetString1~0.base) (+ .cse15 (- 1)))))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (= 0 ULTIMATE.start_cstrpbrk_~s1.offset) .cse10 .cse11 .cse12 (exists ((ULTIMATE.start_main_~nondetString2~0.base Int) (ULTIMATE.start_main_~nondetString2~0.offset Int)) (and (not (= ULTIMATE.start_main_~nondetString2~0.base ULTIMATE.start_cstrpbrk_~s1.base)) (= 0 (select (select |#memory_int| ULTIMATE.start_main_~nondetString2~0.base) (+ (select |#length| ULTIMATE.start_main_~nondetString2~0.base) ULTIMATE.start_main_~nondetString2~0.offset (- 1)))))) (<= 1 .cse13) .cse14 (exists ((ULTIMATE.start_main_~nondetString1~0.offset Int)) (and (= 0 (select (select |#memory_int| ULTIMATE.start_cstrpbrk_~s1.base) (+ ULTIMATE.start_main_~nondetString1~0.offset (select |#length| ULTIMATE.start_cstrpbrk_~s1.base) (- 1)))) (<= ULTIMATE.start_main_~nondetString1~0.offset 0) (<= ULTIMATE.start_cstrpbrk_~s1.offset ULTIMATE.start_main_~nondetString1~0.offset))) (<= 1 .cse15)) (and .cse0 .cse1 (= 0 ULTIMATE.start_cstrpbrk_~sc~0) .cse2 .cse3 .cse4 .cse5 .cse6 (<= (+ ULTIMATE.start_cstrpbrk_~s1.offset 1) .cse13) .cse7 .cse8 .cse9 .cse10 .cse11 (<= 1 ULTIMATE.start_cstrpbrk_~s1.offset) (<= 1 ULTIMATE.start_main_~length1~0) (= 0 (select (select |#memory_int| ULTIMATE.start_cstrpbrk_~s1.base) (+ .cse13 (- 1)))) .cse12 .cse14 (exists ((ULTIMATE.start_main_~nondetString2~0.offset Int)) (and (= 0 (select (select |#memory_int| ULTIMATE.start_cstrpbrk_~scanp~0.base) (+ (select |#length| ULTIMATE.start_cstrpbrk_~scanp~0.base) ULTIMATE.start_main_~nondetString2~0.offset (- 1)))) (<= 0 ULTIMATE.start_main_~nondetString2~0.offset) (<= ULTIMATE.start_main_~nondetString2~0.offset 0))) (<= ULTIMATE.start_cstrpbrk_~scanp~0.offset (select |#length| ULTIMATE.start_cstrpbrk_~scanp~0.base)) (<= 1 ULTIMATE.start_cstrpbrk_~scanp~0.offset) (= 1 (select |#valid| ULTIMATE.start_cstrpbrk_~scanp~0.base)))))) [2020-07-01 13:12:33,367 INFO L268 CegarLoopResult]: For program point L32-1(lines 32 34) no Hoare annotation was computed. [2020-07-01 13:12:33,367 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 13:12:33,367 INFO L268 CegarLoopResult]: For program point L20(lines 20 21) no Hoare annotation was computed. [2020-07-01 13:12:33,367 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-07-01 13:12:33,367 INFO L268 CegarLoopResult]: For program point L18-3(lines 18 22) no Hoare annotation was computed. [2020-07-01 13:12:33,368 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr6REQUIRES_VIOLATION(line 19) no Hoare annotation was computed. [2020-07-01 13:12:33,368 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr5REQUIRES_VIOLATION(line 18) no Hoare annotation was computed. [2020-07-01 13:12:33,368 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr7REQUIRES_VIOLATION(line 19) no Hoare annotation was computed. [2020-07-01 13:12:33,368 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr2REQUIRES_VIOLATION(line 38) no Hoare annotation was computed. [2020-07-01 13:12:33,368 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr1REQUIRES_VIOLATION(line 37) no Hoare annotation was computed. [2020-07-01 13:12:33,368 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr4REQUIRES_VIOLATION(line 18) no Hoare annotation was computed. [2020-07-01 13:12:33,368 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr3REQUIRES_VIOLATION(line 38) no Hoare annotation was computed. [2020-07-01 13:12:33,369 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-01 13:12:33,369 INFO L268 CegarLoopResult]: For program point L37-1(line 37) no Hoare annotation was computed. [2020-07-01 13:12:33,369 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr0REQUIRES_VIOLATION(line 37) no Hoare annotation was computed. [2020-07-01 13:12:33,372 INFO L308 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2020-07-01 13:12:33,381 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,382 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,382 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,383 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.base,QUANTIFIED] [2020-07-01 13:12:33,383 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.base,QUANTIFIED] [2020-07-01 13:12:33,383 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.base,QUANTIFIED] [2020-07-01 13:12:33,384 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,384 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString1~0.offset,QUANTIFIED] [2020-07-01 13:12:33,384 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString1~0.offset,QUANTIFIED] [2020-07-01 13:12:33,385 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString1~0.offset,QUANTIFIED] [2020-07-01 13:12:33,385 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,385 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,386 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,386 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,387 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,387 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,391 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,391 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,392 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,392 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,394 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,394 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,394 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,394 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,394 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,395 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,395 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,395 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,395 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,397 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,397 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,397 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,397 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,398 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,406 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,406 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,407 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,407 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.base,QUANTIFIED] [2020-07-01 13:12:33,407 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.base,QUANTIFIED] [2020-07-01 13:12:33,408 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.base,QUANTIFIED] [2020-07-01 13:12:33,408 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,408 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString1~0.offset,QUANTIFIED] [2020-07-01 13:12:33,408 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString1~0.offset,QUANTIFIED] [2020-07-01 13:12:33,409 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString1~0.offset,QUANTIFIED] [2020-07-01 13:12:33,409 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,409 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,410 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,410 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,410 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,411 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,412 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,413 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,413 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,413 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,414 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,414 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,414 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,414 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,414 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,415 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,415 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,415 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,415 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,415 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,416 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,416 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,416 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,417 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,417 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,417 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,417 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,418 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,418 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,418 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,418 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,418 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,423 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,423 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,423 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,424 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~length2~0,QUANTIFIED] [2020-07-01 13:12:33,424 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~length2~0,QUANTIFIED] [2020-07-01 13:12:33,424 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,425 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~length2~0,QUANTIFIED] [2020-07-01 13:12:33,425 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,425 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,426 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,426 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,426 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,427 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,427 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,428 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,428 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,428 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,429 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,429 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,429 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,429 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,430 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,430 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,430 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,433 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,433 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,434 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,434 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,434 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,434 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,435 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,435 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,435 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,435 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,436 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,436 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,436 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,437 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,437 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,437 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,437 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,438 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,438 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,438 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,438 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,439 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,439 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,440 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,440 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,440 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,441 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,441 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,441 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,441 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,441 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,442 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,442 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,442 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,442 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,444 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,444 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,444 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,445 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~length2~0,QUANTIFIED] [2020-07-01 13:12:33,445 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~length2~0,QUANTIFIED] [2020-07-01 13:12:33,445 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,446 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~length2~0,QUANTIFIED] [2020-07-01 13:12:33,446 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,446 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,447 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,447 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,447 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,448 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,448 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,448 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,449 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,449 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,449 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,450 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,450 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,450 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,451 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,451 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,451 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,453 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,454 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,454 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,454 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,454 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,455 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,455 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,455 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,455 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,456 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,456 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,456 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,457 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,457 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,457 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,457 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,457 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,458 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,458 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,458 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,458 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,459 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,459 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,460 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,460 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,460 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,460 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,461 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,461 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,461 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,461 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,461 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,461 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,462 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,462 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:12:33 BasicIcfg [2020-07-01 13:12:33,465 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 13:12:33,466 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 13:12:33,466 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 13:12:33,469 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 13:12:33,470 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:12:33,470 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 01:12:07" (1/5) ... [2020-07-01 13:12:33,471 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a68f129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 01:12:33, skipping insertion in model container [2020-07-01 13:12:33,471 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:12:33,471 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:12:08" (2/5) ... [2020-07-01 13:12:33,471 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a68f129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 01:12:33, skipping insertion in model container [2020-07-01 13:12:33,471 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:12:33,471 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:12:08" (3/5) ... [2020-07-01 13:12:33,472 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a68f129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 01:12:33, skipping insertion in model container [2020-07-01 13:12:33,472 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:12:33,472 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:12:08" (4/5) ... [2020-07-01 13:12:33,472 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a68f129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 01:12:33, skipping insertion in model container [2020-07-01 13:12:33,472 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:12:33,472 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:12:33" (5/5) ... [2020-07-01 13:12:33,474 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 13:12:33,494 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 13:12:33,494 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 13:12:33,495 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 13:12:33,495 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 13:12:33,495 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 13:12:33,495 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 13:12:33,495 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 13:12:33,495 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 13:12:33,498 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2020-07-01 13:12:33,502 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-07-01 13:12:33,503 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:12:33,503 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:12:33,507 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-01 13:12:33,507 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-07-01 13:12:33,507 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 13:12:33,508 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2020-07-01 13:12:33,509 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-07-01 13:12:33,509 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:12:33,509 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:12:33,509 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-01 13:12:33,509 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-07-01 13:12:33,514 INFO L794 eck$LassoCheckResult]: Stem: 18#ULTIMATE.startENTRYtrue [144] ULTIMATE.startENTRY-->L29: Formula: (and (= 0 |v_#NULL.base_2|) (< 0 |v_#StackHeapBarrier_3|) (= 0 |v_#NULL.offset_2|) (= |v_#valid_17| (store |v_#valid_18| 0 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_3|, #valid=|v_#valid_18|} OutVars{ULTIMATE.start_main_#t~malloc7.base=|v_ULTIMATE.start_main_#t~malloc7.base_5|, ULTIMATE.start_main_#t~ret8.base=|v_ULTIMATE.start_main_#t~ret8.base_4|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ULTIMATE.start_main_#t~malloc6.base=|v_ULTIMATE.start_main_#t~malloc6.base_5|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_6|, ULTIMATE.start_main_~length1~0=v_ULTIMATE.start_main_~length1~0_10, #NULL.offset=|v_#NULL.offset_2|, ULTIMATE.start_main_~nondetString2~0.base=v_ULTIMATE.start_main_~nondetString2~0.base_7, ULTIMATE.start_main_~nondetString2~0.offset=v_ULTIMATE.start_main_~nondetString2~0.offset_6, #NULL.base=|v_#NULL.base_2|, ULTIMATE.start_main_#t~malloc7.offset=|v_ULTIMATE.start_main_#t~malloc7.offset_5|, #StackHeapBarrier=|v_#StackHeapBarrier_3|, ULTIMATE.start_main_~nondetString1~0.base=v_ULTIMATE.start_main_~nondetString1~0.base_7, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_4|, ULTIMATE.start_main_#t~malloc6.offset=|v_ULTIMATE.start_main_#t~malloc6.offset_5|, #valid=|v_#valid_17|, ULTIMATE.start_main_~nondetString1~0.offset=v_ULTIMATE.start_main_~nondetString1~0.offset_6, ULTIMATE.start_main_#t~ret8.offset=|v_ULTIMATE.start_main_#t~ret8.offset_4|, ULTIMATE.start_main_~length2~0=v_ULTIMATE.start_main_~length2~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~malloc7.base, ULTIMATE.start_main_#t~ret8.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~malloc6.base, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_~length1~0, #NULL.offset, ULTIMATE.start_main_~nondetString2~0.base, ULTIMATE.start_main_~nondetString2~0.offset, #NULL.base, ULTIMATE.start_main_#t~malloc7.offset, ULTIMATE.start_main_~nondetString1~0.base, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~malloc6.offset, #valid, ULTIMATE.start_main_~nondetString1~0.offset, ULTIMATE.start_main_#t~ret8.offset, ULTIMATE.start_main_~length2~0] 12#L29true [77] L29-->L29-2: Formula: (and (= v_ULTIMATE.start_main_~length1~0_4 1) (< v_ULTIMATE.start_main_~length1~0_5 1)) InVars {ULTIMATE.start_main_~length1~0=v_ULTIMATE.start_main_~length1~0_5} OutVars{ULTIMATE.start_main_~length1~0=v_ULTIMATE.start_main_~length1~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_~length1~0] 7#L29-2true [105] L29-2-->L32-1: Formula: (>= v_ULTIMATE.start_main_~length2~0_6 1) InVars {ULTIMATE.start_main_~length2~0=v_ULTIMATE.start_main_~length2~0_6} OutVars{ULTIMATE.start_main_~length2~0=v_ULTIMATE.start_main_~length2~0_6} AuxVars[] AssignedVars[] 16#L32-1true [121] L32-1-->L37: Formula: (let ((.cse0 (store |v_#valid_8| |v_ULTIMATE.start_main_#t~malloc6.base_4| 1))) (and (= v_ULTIMATE.start_main_~nondetString1~0.base_2 |v_ULTIMATE.start_main_#t~malloc6.base_4|) (< |v_#StackHeapBarrier_2| |v_ULTIMATE.start_main_#t~malloc7.base_4|) (= |v_#valid_6| (store .cse0 |v_ULTIMATE.start_main_#t~malloc7.base_4| 1)) (> 0 |v_ULTIMATE.start_main_#t~malloc6.base_4|) (= (store (store |v_#length_3| |v_ULTIMATE.start_main_#t~malloc6.base_4| v_ULTIMATE.start_main_~length1~0_7) |v_ULTIMATE.start_main_#t~malloc7.base_4| v_ULTIMATE.start_main_~length2~0_7) |v_#length_1|) (< |v_ULTIMATE.start_main_#t~malloc7.base_4| 0) (< |v_#StackHeapBarrier_2| |v_ULTIMATE.start_main_#t~malloc6.base_4|) (= 0 (select .cse0 |v_ULTIMATE.start_main_#t~malloc7.base_4|)) (= v_ULTIMATE.start_main_~nondetString2~0.base_2 |v_ULTIMATE.start_main_#t~malloc7.base_4|) (= 0 |v_ULTIMATE.start_main_#t~malloc6.offset_4|) (= 0 |v_ULTIMATE.start_main_#t~malloc7.offset_4|) (= v_ULTIMATE.start_main_~nondetString2~0.offset_2 |v_ULTIMATE.start_main_#t~malloc7.offset_4|) (= v_ULTIMATE.start_main_~nondetString1~0.offset_2 |v_ULTIMATE.start_main_#t~malloc6.offset_4|) (= 0 (select |v_#valid_8| |v_ULTIMATE.start_main_#t~malloc6.base_4|)))) InVars {ULTIMATE.start_main_~length1~0=v_ULTIMATE.start_main_~length1~0_7, #StackHeapBarrier=|v_#StackHeapBarrier_2|, #length=|v_#length_3|, ULTIMATE.start_main_~length2~0=v_ULTIMATE.start_main_~length2~0_7, #valid=|v_#valid_8|} OutVars{ULTIMATE.start_main_#t~malloc7.base=|v_ULTIMATE.start_main_#t~malloc7.base_4|, ULTIMATE.start_main_#t~malloc6.base=|v_ULTIMATE.start_main_#t~malloc6.base_4|, ULTIMATE.start_main_~length1~0=v_ULTIMATE.start_main_~length1~0_7, ULTIMATE.start_main_~nondetString2~0.base=v_ULTIMATE.start_main_~nondetString2~0.base_2, ULTIMATE.start_main_~nondetString2~0.offset=v_ULTIMATE.start_main_~nondetString2~0.offset_2, ULTIMATE.start_main_#t~malloc7.offset=|v_ULTIMATE.start_main_#t~malloc7.offset_4|, #StackHeapBarrier=|v_#StackHeapBarrier_2|, ULTIMATE.start_main_~nondetString1~0.base=v_ULTIMATE.start_main_~nondetString1~0.base_2, ULTIMATE.start_main_#t~malloc6.offset=|v_ULTIMATE.start_main_#t~malloc6.offset_4|, #valid=|v_#valid_6|, ULTIMATE.start_main_~nondetString1~0.offset=v_ULTIMATE.start_main_~nondetString1~0.offset_2, #length=|v_#length_1|, ULTIMATE.start_main_~length2~0=v_ULTIMATE.start_main_~length2~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~malloc7.base, ULTIMATE.start_main_#t~malloc6.base, ULTIMATE.start_main_~nondetString1~0.base, ULTIMATE.start_main_#t~malloc6.offset, #valid, ULTIMATE.start_main_~nondetString1~0.offset, #length, ULTIMATE.start_main_~nondetString2~0.base, ULTIMATE.start_main_~nondetString2~0.offset, ULTIMATE.start_main_#t~malloc7.offset] 4#L37true [87] L37-->L37-1: Formula: (let ((.cse0 (+ v_ULTIMATE.start_main_~length1~0_8 v_ULTIMATE.start_main_~nondetString1~0.offset_3))) (and (= |v_#memory_int_1| (store |v_#memory_int_2| v_ULTIMATE.start_main_~nondetString1~0.base_3 (store (select |v_#memory_int_2| v_ULTIMATE.start_main_~nondetString1~0.base_3) (+ v_ULTIMATE.start_main_~length1~0_8 v_ULTIMATE.start_main_~nondetString1~0.offset_3 (- 1)) 0))) (= 1 (select |v_#valid_9| v_ULTIMATE.start_main_~nondetString1~0.base_3)) (<= 1 .cse0) (<= .cse0 (select |v_#length_4| v_ULTIMATE.start_main_~nondetString1~0.base_3)))) InVars {ULTIMATE.start_main_~nondetString1~0.base=v_ULTIMATE.start_main_~nondetString1~0.base_3, #valid=|v_#valid_9|, #memory_int=|v_#memory_int_2|, ULTIMATE.start_main_~nondetString1~0.offset=v_ULTIMATE.start_main_~nondetString1~0.offset_3, ULTIMATE.start_main_~length1~0=v_ULTIMATE.start_main_~length1~0_8, #length=|v_#length_4|} OutVars{ULTIMATE.start_main_~nondetString1~0.base=v_ULTIMATE.start_main_~nondetString1~0.base_3, #valid=|v_#valid_9|, #memory_int=|v_#memory_int_1|, ULTIMATE.start_main_~nondetString1~0.offset=v_ULTIMATE.start_main_~nondetString1~0.offset_3, ULTIMATE.start_main_~length1~0=v_ULTIMATE.start_main_~length1~0_8, #length=|v_#length_4|} AuxVars[] AssignedVars[#memory_int] 23#L37-1true [145] L37-1-->L19-6: Formula: (let ((.cse0 (+ v_ULTIMATE.start_main_~length2~0_11 v_ULTIMATE.start_main_~nondetString2~0.offset_7))) (and (= 1 (select |v_#valid_19| v_ULTIMATE.start_main_~nondetString2~0.base_8)) (= |v_ULTIMATE.start_cstrpbrk_#in~s1.base_2| v_ULTIMATE.start_main_~nondetString1~0.base_8) (= v_ULTIMATE.start_main_~nondetString1~0.offset_7 |v_ULTIMATE.start_cstrpbrk_#in~s1.offset_2|) (= v_ULTIMATE.start_cstrpbrk_~s1.offset_6 |v_ULTIMATE.start_cstrpbrk_#in~s1.offset_2|) (<= 1 .cse0) (= |v_ULTIMATE.start_cstrpbrk_#in~s2.base_2| v_ULTIMATE.start_cstrpbrk_~s2.base_4) (<= .cse0 (select |v_#length_12| v_ULTIMATE.start_main_~nondetString2~0.base_8)) (= |v_ULTIMATE.start_cstrpbrk_#in~s1.base_2| v_ULTIMATE.start_cstrpbrk_~s1.base_6) (= (store |v_#memory_int_8| v_ULTIMATE.start_main_~nondetString2~0.base_8 (store (select |v_#memory_int_8| v_ULTIMATE.start_main_~nondetString2~0.base_8) (+ v_ULTIMATE.start_main_~length2~0_11 v_ULTIMATE.start_main_~nondetString2~0.offset_7 (- 1)) 0)) |v_#memory_int_7|) (= v_ULTIMATE.start_main_~nondetString2~0.offset_7 |v_ULTIMATE.start_cstrpbrk_#in~s2.offset_2|) (= v_ULTIMATE.start_cstrpbrk_~s2.offset_4 |v_ULTIMATE.start_cstrpbrk_#in~s2.offset_2|) (= v_ULTIMATE.start_main_~nondetString2~0.base_8 |v_ULTIMATE.start_cstrpbrk_#in~s2.base_2|))) InVars {ULTIMATE.start_main_~nondetString1~0.base=v_ULTIMATE.start_main_~nondetString1~0.base_8, #valid=|v_#valid_19|, #memory_int=|v_#memory_int_8|, ULTIMATE.start_main_~nondetString1~0.offset=v_ULTIMATE.start_main_~nondetString1~0.offset_7, #length=|v_#length_12|, ULTIMATE.start_main_~nondetString2~0.base=v_ULTIMATE.start_main_~nondetString2~0.base_8, ULTIMATE.start_main_~nondetString2~0.offset=v_ULTIMATE.start_main_~nondetString2~0.offset_7, ULTIMATE.start_main_~length2~0=v_ULTIMATE.start_main_~length2~0_11} OutVars{ULTIMATE.start_cstrpbrk_#t~post2.offset=|v_ULTIMATE.start_cstrpbrk_#t~post2.offset_7|, ULTIMATE.start_cstrpbrk_#t~post2.base=|v_ULTIMATE.start_cstrpbrk_#t~post2.base_8|, ULTIMATE.start_cstrpbrk_#in~s2.base=|v_ULTIMATE.start_cstrpbrk_#in~s2.base_2|, ULTIMATE.start_cstrpbrk_~s1.offset=v_ULTIMATE.start_cstrpbrk_~s1.offset_6, ULTIMATE.start_cstrpbrk_#in~s1.base=|v_ULTIMATE.start_cstrpbrk_#in~s1.base_2|, ULTIMATE.start_cstrpbrk_#t~post0.base=|v_ULTIMATE.start_cstrpbrk_#t~post0.base_8|, ULTIMATE.start_main_~nondetString1~0.base=v_ULTIMATE.start_main_~nondetString1~0.base_8, ULTIMATE.start_cstrpbrk_#in~s1.offset=|v_ULTIMATE.start_cstrpbrk_#in~s1.offset_2|, #length=|v_#length_12|, ULTIMATE.start_main_~length2~0=v_ULTIMATE.start_main_~length2~0_11, ULTIMATE.start_cstrpbrk_#res.offset=|v_ULTIMATE.start_cstrpbrk_#res.offset_5|, ULTIMATE.start_cstrpbrk_~scanp~0.base=v_ULTIMATE.start_cstrpbrk_~scanp~0.base_6, ULTIMATE.start_cstrpbrk_~sc~0=v_ULTIMATE.start_cstrpbrk_~sc~0_8, ULTIMATE.start_cstrpbrk_~s2.offset=v_ULTIMATE.start_cstrpbrk_~s2.offset_4, ULTIMATE.start_cstrpbrk_#t~mem3=|v_ULTIMATE.start_cstrpbrk_#t~mem3_6|, ULTIMATE.start_cstrpbrk_#in~s2.offset=|v_ULTIMATE.start_cstrpbrk_#in~s2.offset_2|, ULTIMATE.start_main_~nondetString2~0.base=v_ULTIMATE.start_main_~nondetString2~0.base_8, ULTIMATE.start_cstrpbrk_#t~mem1=|v_ULTIMATE.start_cstrpbrk_#t~mem1_6|, ULTIMATE.start_cstrpbrk_#res.base=|v_ULTIMATE.start_cstrpbrk_#res.base_5|, ULTIMATE.start_main_~nondetString2~0.offset=v_ULTIMATE.start_main_~nondetString2~0.offset_7, ULTIMATE.start_cstrpbrk_~s2.base=v_ULTIMATE.start_cstrpbrk_~s2.base_4, ULTIMATE.start_cstrpbrk_~s1.base=v_ULTIMATE.start_cstrpbrk_~s1.base_6, #valid=|v_#valid_19|, #memory_int=|v_#memory_int_7|, ULTIMATE.start_main_~nondetString1~0.offset=v_ULTIMATE.start_main_~nondetString1~0.offset_7, ULTIMATE.start_cstrpbrk_~c~0=v_ULTIMATE.start_cstrpbrk_~c~0_8, ULTIMATE.start_cstrpbrk_~scanp~0.offset=v_ULTIMATE.start_cstrpbrk_~scanp~0.offset_6, ULTIMATE.start_cstrpbrk_#t~post0.offset=|v_ULTIMATE.start_cstrpbrk_#t~post0.offset_7|} AuxVars[] AssignedVars[ULTIMATE.start_cstrpbrk_#res.offset, ULTIMATE.start_cstrpbrk_~scanp~0.base, ULTIMATE.start_cstrpbrk_~sc~0, ULTIMATE.start_cstrpbrk_#t~post2.offset, ULTIMATE.start_cstrpbrk_~s2.offset, ULTIMATE.start_cstrpbrk_#t~mem3, ULTIMATE.start_cstrpbrk_#in~s2.offset, ULTIMATE.start_cstrpbrk_#t~mem1, ULTIMATE.start_cstrpbrk_#res.base, ULTIMATE.start_cstrpbrk_~s2.base, ULTIMATE.start_cstrpbrk_~s1.base, ULTIMATE.start_cstrpbrk_#t~post2.base, ULTIMATE.start_cstrpbrk_#in~s2.base, ULTIMATE.start_cstrpbrk_~s1.offset, ULTIMATE.start_cstrpbrk_#in~s1.base, ULTIMATE.start_cstrpbrk_#t~post0.base, #memory_int, ULTIMATE.start_cstrpbrk_#in~s1.offset, ULTIMATE.start_cstrpbrk_~c~0, ULTIMATE.start_cstrpbrk_~scanp~0.offset, ULTIMATE.start_cstrpbrk_#t~post0.offset] 21#L19-6true [2020-07-01 13:12:33,515 INFO L796 eck$LassoCheckResult]: Loop: 21#L19-6true [98] L19-6-->L18-1: Formula: (and (= |v_ULTIMATE.start_cstrpbrk_#t~post0.base_2| v_ULTIMATE.start_cstrpbrk_~s1.base_4) (= |v_ULTIMATE.start_cstrpbrk_#t~post0.offset_2| v_ULTIMATE.start_cstrpbrk_~s1.offset_4) (= v_ULTIMATE.start_cstrpbrk_~s1.base_3 |v_ULTIMATE.start_cstrpbrk_#t~post0.base_2|) (= v_ULTIMATE.start_cstrpbrk_~s1.offset_3 (+ |v_ULTIMATE.start_cstrpbrk_#t~post0.offset_2| 1))) InVars {ULTIMATE.start_cstrpbrk_~s1.offset=v_ULTIMATE.start_cstrpbrk_~s1.offset_4, ULTIMATE.start_cstrpbrk_~s1.base=v_ULTIMATE.start_cstrpbrk_~s1.base_4} OutVars{ULTIMATE.start_cstrpbrk_~s1.offset=v_ULTIMATE.start_cstrpbrk_~s1.offset_3, ULTIMATE.start_cstrpbrk_#t~post0.base=|v_ULTIMATE.start_cstrpbrk_#t~post0.base_2|, ULTIMATE.start_cstrpbrk_#t~post0.offset=|v_ULTIMATE.start_cstrpbrk_#t~post0.offset_2|, ULTIMATE.start_cstrpbrk_~s1.base=v_ULTIMATE.start_cstrpbrk_~s1.base_3} AuxVars[] AssignedVars[ULTIMATE.start_cstrpbrk_~s1.offset, ULTIMATE.start_cstrpbrk_#t~post0.base, ULTIMATE.start_cstrpbrk_#t~post0.offset, ULTIMATE.start_cstrpbrk_~s1.base] 9#L18-1true [146] L18-1-->L18-3: Formula: (and (= 1 (select |v_#valid_20| |v_ULTIMATE.start_cstrpbrk_#t~post0.base_9|)) (<= 0 |v_ULTIMATE.start_cstrpbrk_#t~post0.offset_8|) (= |v_ULTIMATE.start_cstrpbrk_#t~mem1_7| (select (select |v_#memory_int_9| |v_ULTIMATE.start_cstrpbrk_#t~post0.base_9|) |v_ULTIMATE.start_cstrpbrk_#t~post0.offset_8|)) (= |v_ULTIMATE.start_cstrpbrk_#t~mem1_7| v_ULTIMATE.start_cstrpbrk_~c~0_9) (<= (+ |v_ULTIMATE.start_cstrpbrk_#t~post0.offset_8| 1) (select |v_#length_13| |v_ULTIMATE.start_cstrpbrk_#t~post0.base_9|))) InVars {ULTIMATE.start_cstrpbrk_#t~post0.base=|v_ULTIMATE.start_cstrpbrk_#t~post0.base_9|, #valid=|v_#valid_20|, #memory_int=|v_#memory_int_9|, #length=|v_#length_13|, ULTIMATE.start_cstrpbrk_#t~post0.offset=|v_ULTIMATE.start_cstrpbrk_#t~post0.offset_8|} OutVars{ULTIMATE.start_cstrpbrk_#t~post0.base=|v_ULTIMATE.start_cstrpbrk_#t~post0.base_9|, #valid=|v_#valid_20|, #memory_int=|v_#memory_int_9|, ULTIMATE.start_cstrpbrk_~c~0=v_ULTIMATE.start_cstrpbrk_~c~0_9, #length=|v_#length_13|, ULTIMATE.start_cstrpbrk_#t~mem1=|v_ULTIMATE.start_cstrpbrk_#t~mem1_7|, ULTIMATE.start_cstrpbrk_#t~post0.offset=|v_ULTIMATE.start_cstrpbrk_#t~post0.offset_8|} AuxVars[] AssignedVars[ULTIMATE.start_cstrpbrk_~c~0, ULTIMATE.start_cstrpbrk_#t~mem1] 3#L18-3true [134] L18-3-->L19-5: Formula: (and (= v_ULTIMATE.start_cstrpbrk_~scanp~0.offset_3 v_ULTIMATE.start_cstrpbrk_~s2.offset_3) (> 0 v_ULTIMATE.start_cstrpbrk_~c~0_5) (= v_ULTIMATE.start_cstrpbrk_~scanp~0.base_3 v_ULTIMATE.start_cstrpbrk_~s2.base_3)) InVars {ULTIMATE.start_cstrpbrk_~c~0=v_ULTIMATE.start_cstrpbrk_~c~0_5, ULTIMATE.start_cstrpbrk_~s2.offset=v_ULTIMATE.start_cstrpbrk_~s2.offset_3, ULTIMATE.start_cstrpbrk_~s2.base=v_ULTIMATE.start_cstrpbrk_~s2.base_3} OutVars{ULTIMATE.start_cstrpbrk_~scanp~0.base=v_ULTIMATE.start_cstrpbrk_~scanp~0.base_3, ULTIMATE.start_cstrpbrk_#t~post0.base=|v_ULTIMATE.start_cstrpbrk_#t~post0.base_7|, ULTIMATE.start_cstrpbrk_~c~0=v_ULTIMATE.start_cstrpbrk_~c~0_5, ULTIMATE.start_cstrpbrk_~s2.offset=v_ULTIMATE.start_cstrpbrk_~s2.offset_3, ULTIMATE.start_cstrpbrk_#t~mem1=|v_ULTIMATE.start_cstrpbrk_#t~mem1_5|, ULTIMATE.start_cstrpbrk_~s2.base=v_ULTIMATE.start_cstrpbrk_~s2.base_3, ULTIMATE.start_cstrpbrk_~scanp~0.offset=v_ULTIMATE.start_cstrpbrk_~scanp~0.offset_3, ULTIMATE.start_cstrpbrk_#t~post0.offset=|v_ULTIMATE.start_cstrpbrk_#t~post0.offset_6|} AuxVars[] AssignedVars[ULTIMATE.start_cstrpbrk_~scanp~0.base, ULTIMATE.start_cstrpbrk_#t~post0.base, ULTIMATE.start_cstrpbrk_#t~mem1, ULTIMATE.start_cstrpbrk_~scanp~0.offset, ULTIMATE.start_cstrpbrk_#t~post0.offset] 22#L19-5true [99] L19-5-->L19-1: Formula: (and (= v_ULTIMATE.start_cstrpbrk_~scanp~0.base_4 |v_ULTIMATE.start_cstrpbrk_#t~post2.base_2|) (= v_ULTIMATE.start_cstrpbrk_~scanp~0.offset_4 (+ |v_ULTIMATE.start_cstrpbrk_#t~post2.offset_2| 1)) (= |v_ULTIMATE.start_cstrpbrk_#t~post2.base_2| v_ULTIMATE.start_cstrpbrk_~scanp~0.base_5) (= |v_ULTIMATE.start_cstrpbrk_#t~post2.offset_2| v_ULTIMATE.start_cstrpbrk_~scanp~0.offset_5)) InVars {ULTIMATE.start_cstrpbrk_~scanp~0.base=v_ULTIMATE.start_cstrpbrk_~scanp~0.base_5, ULTIMATE.start_cstrpbrk_~scanp~0.offset=v_ULTIMATE.start_cstrpbrk_~scanp~0.offset_5} OutVars{ULTIMATE.start_cstrpbrk_#t~post2.base=|v_ULTIMATE.start_cstrpbrk_#t~post2.base_2|, ULTIMATE.start_cstrpbrk_#t~post2.offset=|v_ULTIMATE.start_cstrpbrk_#t~post2.offset_2|, ULTIMATE.start_cstrpbrk_~scanp~0.base=v_ULTIMATE.start_cstrpbrk_~scanp~0.base_4, ULTIMATE.start_cstrpbrk_~scanp~0.offset=v_ULTIMATE.start_cstrpbrk_~scanp~0.offset_4} AuxVars[] AssignedVars[ULTIMATE.start_cstrpbrk_#t~post2.base, ULTIMATE.start_cstrpbrk_~scanp~0.base, ULTIMATE.start_cstrpbrk_#t~post2.offset, ULTIMATE.start_cstrpbrk_~scanp~0.offset] 11#L19-1true [149] L19-1-->L19-3: Formula: (and (= |v_ULTIMATE.start_cstrpbrk_#t~mem3_7| (select (select |v_#memory_int_10| |v_ULTIMATE.start_cstrpbrk_#t~post2.base_9|) |v_ULTIMATE.start_cstrpbrk_#t~post2.offset_8|)) (<= 0 |v_ULTIMATE.start_cstrpbrk_#t~post2.offset_8|) (= |v_ULTIMATE.start_cstrpbrk_#t~mem3_7| v_ULTIMATE.start_cstrpbrk_~sc~0_9) (= 1 (select |v_#valid_23| |v_ULTIMATE.start_cstrpbrk_#t~post2.base_9|)) (<= (+ |v_ULTIMATE.start_cstrpbrk_#t~post2.offset_8| 1) (select |v_#length_14| |v_ULTIMATE.start_cstrpbrk_#t~post2.base_9|))) InVars {ULTIMATE.start_cstrpbrk_#t~post2.base=|v_ULTIMATE.start_cstrpbrk_#t~post2.base_9|, #valid=|v_#valid_23|, #memory_int=|v_#memory_int_10|, ULTIMATE.start_cstrpbrk_#t~post2.offset=|v_ULTIMATE.start_cstrpbrk_#t~post2.offset_8|, #length=|v_#length_14|} OutVars{ULTIMATE.start_cstrpbrk_#t~post2.base=|v_ULTIMATE.start_cstrpbrk_#t~post2.base_9|, ULTIMATE.start_cstrpbrk_~sc~0=v_ULTIMATE.start_cstrpbrk_~sc~0_9, #valid=|v_#valid_23|, #memory_int=|v_#memory_int_10|, ULTIMATE.start_cstrpbrk_#t~post2.offset=|v_ULTIMATE.start_cstrpbrk_#t~post2.offset_8|, #length=|v_#length_14|, ULTIMATE.start_cstrpbrk_#t~mem3=|v_ULTIMATE.start_cstrpbrk_#t~mem3_7|} AuxVars[] AssignedVars[ULTIMATE.start_cstrpbrk_~sc~0, ULTIMATE.start_cstrpbrk_#t~mem3] 6#L19-3true [90] L19-3-->L19-6: Formula: (= 0 v_ULTIMATE.start_cstrpbrk_~sc~0_4) InVars {ULTIMATE.start_cstrpbrk_~sc~0=v_ULTIMATE.start_cstrpbrk_~sc~0_4} OutVars{ULTIMATE.start_cstrpbrk_#t~post2.base=|v_ULTIMATE.start_cstrpbrk_#t~post2.base_6|, ULTIMATE.start_cstrpbrk_#t~post2.offset=|v_ULTIMATE.start_cstrpbrk_#t~post2.offset_5|, ULTIMATE.start_cstrpbrk_#t~mem3=|v_ULTIMATE.start_cstrpbrk_#t~mem3_4|, ULTIMATE.start_cstrpbrk_~sc~0=v_ULTIMATE.start_cstrpbrk_~sc~0_4} AuxVars[] AssignedVars[ULTIMATE.start_cstrpbrk_#t~post2.base, ULTIMATE.start_cstrpbrk_#t~post2.offset, ULTIMATE.start_cstrpbrk_#t~mem3] 21#L19-6true [2020-07-01 13:12:33,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:12:33,516 INFO L82 PathProgramCache]: Analyzing trace with hash 789492424, now seen corresponding path program 1 times [2020-07-01 13:12:33,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:12:33,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911384317] [2020-07-01 13:12:33,517 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:12:33,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:12:33,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 13:12:33,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911384317] [2020-07-01 13:12:33,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 13:12:33,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-01 13:12:33,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041299585] [2020-07-01 13:12:33,532 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-07-01 13:12:33,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:12:33,532 INFO L82 PathProgramCache]: Analyzing trace with hash -462880909, now seen corresponding path program 1 times [2020-07-01 13:12:33,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:12:33,533 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567373547] [2020-07-01 13:12:33,533 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:12:33,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:12:33,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:12:33,558 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:12:33,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 13:12:33,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 13:12:33,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 13:12:33,662 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2020-07-01 13:12:33,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 13:12:33,694 INFO L93 Difference]: Finished difference Result 21 states and 35 transitions. [2020-07-01 13:12:33,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 13:12:33,697 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: unknown kind of automaton at de.uni_freiburg.informatik.ultimate.automata.AutomatonDefinitionPrinter.printAutomaton(AutomatonDefinitionPrinter.java:349) at de.uni_freiburg.informatik.ultimate.automata.AutomatonDefinitionPrinter.toString(AutomatonDefinitionPrinter.java:186) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.TermcompProofBenchmark.reportFiniteModule(TermcompProofBenchmark.java:61) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.refineFinite(BuchiCegarLoop.java:978) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:532) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:380) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-01 13:12:33,700 INFO L168 Benchmark]: Toolchain (without parser) took 25989.04 ms. Allocated memory was 649.6 MB in the beginning and 928.5 MB in the end (delta: 278.9 MB). Free memory was 560.3 MB in the beginning and 877.5 MB in the end (delta: -317.3 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 13:12:33,700 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 13:12:33,701 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.88 ms. Allocated memory was 649.6 MB in the beginning and 669.0 MB in the end (delta: 19.4 MB). Free memory was 560.3 MB in the beginning and 631.8 MB in the end (delta: -71.5 MB). Peak memory consumption was 28.0 MB. Max. memory is 50.3 GB. [2020-07-01 13:12:33,701 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.39 ms. Allocated memory is still 669.0 MB. Free memory was 631.8 MB in the beginning and 629.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. [2020-07-01 13:12:33,701 INFO L168 Benchmark]: Boogie Preprocessor took 25.45 ms. Allocated memory is still 669.0 MB. Free memory was 629.6 MB in the beginning and 627.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. [2020-07-01 13:12:33,702 INFO L168 Benchmark]: RCFGBuilder took 313.71 ms. Allocated memory is still 669.0 MB. Free memory was 627.5 MB in the beginning and 604.2 MB in the end (delta: 23.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 50.3 GB. [2020-07-01 13:12:33,702 INFO L168 Benchmark]: BlockEncodingV2 took 124.70 ms. Allocated memory is still 669.0 MB. Free memory was 604.2 MB in the beginning and 595.6 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. [2020-07-01 13:12:33,703 INFO L168 Benchmark]: TraceAbstraction took 24941.05 ms. Allocated memory was 669.0 MB in the beginning and 918.0 MB in the end (delta: 249.0 MB). Free memory was 594.5 MB in the beginning and 378.2 MB in the end (delta: 216.3 MB). Peak memory consumption was 465.3 MB. Max. memory is 50.3 GB. [2020-07-01 13:12:33,703 INFO L168 Benchmark]: BuchiAutomizer took 233.20 ms. Allocated memory was 918.0 MB in the beginning and 928.5 MB in the end (delta: 10.5 MB). Free memory was 378.2 MB in the beginning and 877.5 MB in the end (delta: -499.4 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 13:12:33,705 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 30 locations, 36 edges - StatisticsResult: Encoded RCFG 21 locations, 38 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 305.88 ms. Allocated memory was 649.6 MB in the beginning and 669.0 MB in the end (delta: 19.4 MB). Free memory was 560.3 MB in the beginning and 631.8 MB in the end (delta: -71.5 MB). Peak memory consumption was 28.0 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 39.39 ms. Allocated memory is still 669.0 MB. Free memory was 631.8 MB in the beginning and 629.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 25.45 ms. Allocated memory is still 669.0 MB. Free memory was 629.6 MB in the beginning and 627.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. * RCFGBuilder took 313.71 ms. Allocated memory is still 669.0 MB. Free memory was 627.5 MB in the beginning and 604.2 MB in the end (delta: 23.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 124.70 ms. Allocated memory is still 669.0 MB. Free memory was 604.2 MB in the beginning and 595.6 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. * TraceAbstraction took 24941.05 ms. Allocated memory was 669.0 MB in the beginning and 918.0 MB in the end (delta: 249.0 MB). Free memory was 594.5 MB in the beginning and 378.2 MB in the end (delta: 216.3 MB). Peak memory consumption was 465.3 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 233.20 ms. Allocated memory was 918.0 MB in the beginning and 928.5 MB in the end (delta: 10.5 MB). Free memory was 378.2 MB in the beginning and 877.5 MB in the end (delta: -499.4 MB). There was no memory consumed. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString1~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString1~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString1~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString1~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString1~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString1~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~length2~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~length2~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~length2~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~length2~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~length2~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~length2~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 37]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 37]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 38]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 38]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant [2020-07-01 13:12:33,718 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,718 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,719 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,719 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.base,QUANTIFIED] [2020-07-01 13:12:33,719 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.base,QUANTIFIED] [2020-07-01 13:12:33,719 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.base,QUANTIFIED] [2020-07-01 13:12:33,720 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,720 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString1~0.offset,QUANTIFIED] [2020-07-01 13:12:33,720 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString1~0.offset,QUANTIFIED] [2020-07-01 13:12:33,720 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString1~0.offset,QUANTIFIED] [2020-07-01 13:12:33,720 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,721 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,721 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,721 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,722 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,722 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,722 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,723 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,723 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,723 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,723 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,724 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,724 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,724 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,724 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,724 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,725 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,725 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,725 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,725 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,725 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,726 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,726 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,726 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,726 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,726 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,727 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,727 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,727 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,727 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,727 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,728 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,729 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,729 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,729 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.base,QUANTIFIED] [2020-07-01 13:12:33,730 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.base,QUANTIFIED] [2020-07-01 13:12:33,730 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.base,QUANTIFIED] [2020-07-01 13:12:33,730 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,730 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString1~0.offset,QUANTIFIED] [2020-07-01 13:12:33,730 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString1~0.offset,QUANTIFIED] [2020-07-01 13:12:33,731 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString1~0.offset,QUANTIFIED] [2020-07-01 13:12:33,731 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,731 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,731 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,732 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,732 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,732 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,733 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,733 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,733 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,733 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,734 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,734 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,734 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,734 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,734 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,735 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,735 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,735 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,735 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,735 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,736 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,736 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,736 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,736 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,737 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,737 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,737 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,737 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,737 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,737 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,738 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,738 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: ((((((((((((((((((unknown-#length-unknown[nondetString1] == length1 && 1 <= length2) && (\exists ULTIMATE.start_main_~nondetString2~0.offset : int :: (0 <= ULTIMATE.start_main_~nondetString2~0.offset && 0 == unknown-#memory_int-unknown[s2][ULTIMATE.start_main_~nondetString2~0.offset + unknown-#length-unknown[s2] + -1]) && ULTIMATE.start_main_~nondetString2~0.offset <= 0)) && !(nondetString1 == nondetString2)) && 1 == \valid[nondetString2]) && unknown-#length-unknown[nondetString2] == length2) && 1 == \valid[s1]) && 0 == s2) && 1 <= unknown-#length-unknown[s2]) && 0 == nondetString2) && 0 == s1) && 0 == nondetString1) && 1 == \valid[s2]) && 1 == \valid[nondetString1]) && (\exists ULTIMATE.start_main_~nondetString2~0.base : int, ULTIMATE.start_main_~nondetString2~0.offset : int :: !(ULTIMATE.start_main_~nondetString2~0.base == s1) && 0 == unknown-#memory_int-unknown[ULTIMATE.start_main_~nondetString2~0.base][unknown-#length-unknown[ULTIMATE.start_main_~nondetString2~0.base] + ULTIMATE.start_main_~nondetString2~0.offset + -1])) && 1 <= unknown-#length-unknown[s1]) && 0 == unknown-#memory_int-unknown[nondetString1][unknown-#length-unknown[nondetString1] + -1]) && (\exists ULTIMATE.start_main_~nondetString1~0.offset : int :: (0 == unknown-#memory_int-unknown[s1][ULTIMATE.start_main_~nondetString1~0.offset + unknown-#length-unknown[s1] + -1] && ULTIMATE.start_main_~nondetString1~0.offset <= 0) && s1 <= ULTIMATE.start_main_~nondetString1~0.offset)) && 1 <= unknown-#length-unknown[nondetString1]) || ((((((((((((((((((((((unknown-#length-unknown[nondetString1] == length1 && 1 <= length2) && 0 == sc) && (\exists ULTIMATE.start_main_~nondetString2~0.offset : int :: (0 <= ULTIMATE.start_main_~nondetString2~0.offset && 0 == unknown-#memory_int-unknown[s2][ULTIMATE.start_main_~nondetString2~0.offset + unknown-#length-unknown[s2] + -1]) && ULTIMATE.start_main_~nondetString2~0.offset <= 0)) && !(nondetString1 == nondetString2)) && 1 == \valid[nondetString2]) && unknown-#length-unknown[nondetString2] == length2) && 1 == \valid[s1]) && s1 + 1 <= unknown-#length-unknown[s1]) && 0 == s2) && 1 <= unknown-#length-unknown[s2]) && 0 == nondetString2) && 0 == nondetString1) && 1 == \valid[s2]) && 1 <= s1) && 1 <= length1) && 0 == unknown-#memory_int-unknown[s1][unknown-#length-unknown[s1] + -1]) && 1 == \valid[nondetString1]) && 0 == unknown-#memory_int-unknown[nondetString1][unknown-#length-unknown[nondetString1] + -1]) && (\exists ULTIMATE.start_main_~nondetString2~0.offset : int :: (0 == unknown-#memory_int-unknown[scanp][unknown-#length-unknown[scanp] + ULTIMATE.start_main_~nondetString2~0.offset + -1] && 0 <= ULTIMATE.start_main_~nondetString2~0.offset) && ULTIMATE.start_main_~nondetString2~0.offset <= 0)) && scanp <= unknown-#length-unknown[scanp]) && 1 <= scanp) && 1 == \valid[scanp]) - InvariantResult [Line: 19]: Loop Invariant [2020-07-01 13:12:33,739 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,739 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,739 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,739 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~length2~0,QUANTIFIED] [2020-07-01 13:12:33,740 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~length2~0,QUANTIFIED] [2020-07-01 13:12:33,740 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,740 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~length2~0,QUANTIFIED] [2020-07-01 13:12:33,740 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,741 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,741 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,741 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,741 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,741 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,742 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,742 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,742 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,743 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,743 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,743 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,743 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,744 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,744 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,744 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,744 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,745 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,746 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,746 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,746 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,746 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,747 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,747 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,747 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,747 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,747 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,748 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,748 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,748 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,748 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,748 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,748 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,749 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,749 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,749 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,749 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,750 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,750 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,750 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,750 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,751 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,751 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,751 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,751 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,752 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,752 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,752 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,752 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,752 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,752 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,753 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,753 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,754 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,754 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,754 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~length2~0,QUANTIFIED] [2020-07-01 13:12:33,754 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~length2~0,QUANTIFIED] [2020-07-01 13:12:33,755 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,755 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~length2~0,QUANTIFIED] [2020-07-01 13:12:33,755 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,755 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,756 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,756 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,756 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,756 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,757 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,757 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,757 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,757 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,758 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,758 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,758 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,758 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,759 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,759 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,759 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~nondetString2~0.offset,QUANTIFIED] [2020-07-01 13:12:33,760 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,760 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,760 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,761 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,761 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,761 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,761 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,762 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,762 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,762 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,762 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,762 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,763 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,763 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,763 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,763 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,763 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,764 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,764 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,764 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,764 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,764 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,765 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,765 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,765 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,765 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,766 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,766 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,766 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,766 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,766 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,767 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-01 13:12:33,767 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,767 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-01 13:12:33,767 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: ((((((((((((((((((((((0 == scanp && unknown-#length-unknown[nondetString1] == length1) && 1 <= length2) && (\exists ULTIMATE.start_main_~nondetString2~0.offset : int :: (0 <= ULTIMATE.start_main_~nondetString2~0.offset && 0 == unknown-#memory_int-unknown[s2][ULTIMATE.start_main_~nondetString2~0.offset + unknown-#length-unknown[s2] + -1]) && ULTIMATE.start_main_~nondetString2~0.offset <= 0)) && !(nondetString1 == nondetString2)) && (\exists ULTIMATE.start_main_~length2~0 : int, ULTIMATE.start_main_~nondetString2~0.offset : int :: ((1 <= ULTIMATE.start_main_~length2~0 && ULTIMATE.start_main_~length2~0 + ULTIMATE.start_main_~nondetString2~0.offset <= unknown-#length-unknown[scanp]) && 0 == unknown-#memory_int-unknown[scanp][ULTIMATE.start_main_~length2~0 + ULTIMATE.start_main_~nondetString2~0.offset + -1]) && scanp <= ULTIMATE.start_main_~nondetString2~0.offset)) && 1 == \valid[nondetString2]) && unknown-#length-unknown[nondetString2] == length2) && s1 + 1 <= unknown-#length-unknown[s1]) && 1 == \valid[s1]) && 0 == s2) && 1 <= unknown-#length-unknown[s2]) && s1 <= 1) && 0 == nondetString2) && 0 == nondetString1) && 1 == \valid[s2]) && 1 <= s1) && 0 == unknown-#memory_int-unknown[s1][unknown-#length-unknown[s1] + -1]) && 1 == \valid[nondetString1]) && 0 == unknown-#memory_int-unknown[nondetString1][unknown-#length-unknown[nondetString1] + -1]) && (\exists ULTIMATE.start_main_~nondetString2~0.offset : int :: (0 == unknown-#memory_int-unknown[scanp][unknown-#length-unknown[scanp] + ULTIMATE.start_main_~nondetString2~0.offset + -1] && 0 <= ULTIMATE.start_main_~nondetString2~0.offset) && ULTIMATE.start_main_~nondetString2~0.offset <= 0)) && 1 <= unknown-#length-unknown[nondetString1]) && 1 == \valid[scanp]) || (((((((((((((((((((((((unknown-#length-unknown[nondetString1] == length1 && 1 <= length2) && !(0 == sc)) && (\exists ULTIMATE.start_main_~nondetString2~0.offset : int :: (0 <= ULTIMATE.start_main_~nondetString2~0.offset && 0 == unknown-#memory_int-unknown[s2][ULTIMATE.start_main_~nondetString2~0.offset + unknown-#length-unknown[s2] + -1]) && ULTIMATE.start_main_~nondetString2~0.offset <= 0)) && 1 == \valid[nondetString2]) && 1 == \valid[s1]) && 0 == s2) && 1 <= unknown-#length-unknown[s2]) && 0 == nondetString2) && 0 == nondetString1) && 1 == \valid[s2]) && 1 <= s1) && 1 <= length1) && scanp + 1 <= unknown-#length-unknown[scanp]) && 1 == \valid[nondetString1]) && (\exists ULTIMATE.start_main_~nondetString2~0.offset : int :: (0 == unknown-#memory_int-unknown[scanp][unknown-#length-unknown[scanp] + ULTIMATE.start_main_~nondetString2~0.offset + -1] && 0 <= ULTIMATE.start_main_~nondetString2~0.offset) && ULTIMATE.start_main_~nondetString2~0.offset <= 0)) && 1 <= scanp) && 1 == \valid[scanp]) || (((((((((((((((((0 == scanp && unknown-#length-unknown[nondetString1] == length1) && 1 <= length2) && 0 == sc) && (\exists ULTIMATE.start_main_~nondetString2~0.offset : int :: (0 <= ULTIMATE.start_main_~nondetString2~0.offset && 0 == unknown-#memory_int-unknown[s2][ULTIMATE.start_main_~nondetString2~0.offset + unknown-#length-unknown[s2] + -1]) && ULTIMATE.start_main_~nondetString2~0.offset <= 0)) && 1 == \valid[nondetString2]) && 1 == \valid[s1]) && 0 == s2) && 1 <= unknown-#length-unknown[s2]) && 0 == nondetString2) && 0 == nondetString1) && 1 == \valid[s2]) && 1 <= s1) && 1 <= length1) && 1 <= unknown-#length-unknown[scanp]) && 1 == \valid[nondetString1]) && (\exists ULTIMATE.start_main_~nondetString2~0.offset : int :: (0 == unknown-#memory_int-unknown[scanp][unknown-#length-unknown[scanp] + ULTIMATE.start_main_~nondetString2~0.offset + -1] && 0 <= ULTIMATE.start_main_~nondetString2~0.offset) && ULTIMATE.start_main_~nondetString2~0.offset <= 0)) && 1 == \valid[scanp])) && 0 == unknown-#memory_int-unknown[s1][unknown-#length-unknown[s1] + -1]) && !(nondetString1 == nondetString2)) && 0 == unknown-#memory_int-unknown[nondetString1][unknown-#length-unknown[nondetString1] + -1]) && unknown-#length-unknown[nondetString2] == length2) && s1 + 1 <= unknown-#length-unknown[s1]) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.9s, OverallIterations: 20, TraceHistogramMax: 4, AutomataDifference: 12.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 130 SDtfs, 1174 SDslu, 913 SDs, 0 SdLazy, 2057 SolverSat, 393 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 7.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 319 GetRequests, 110 SyntacticMatches, 1 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 575 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 20 MinimizatonAttempts, 72 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 17 NumberOfFragments, 697 HoareAnnotationTreeSize, 2 FomulaSimplifications, 8454 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 2 FomulaSimplificationsInter, 2787 FormulaSimplificationTreeSizeReductionInter, 6.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 358 NumberOfCodeBlocks, 358 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 331 ConstructedInterpolants, 34 QuantifiedInterpolants, 59751 SizeOfPredicates, 86 NumberOfNonLiveVariables, 885 ConjunctsInSsa, 188 ConjunctsInUnsatCore, 27 InterpolantComputations, 13 PerfectInterpolantSequences, 27/104 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: unknown kind of automaton de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: unknown kind of automaton: de.uni_freiburg.informatik.ultimate.automata.AutomatonDefinitionPrinter.printAutomaton(AutomatonDefinitionPrinter.java:349) RESULT: Ultimate could not prove your program: Toolchain returned no result. !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 13:12:33.992 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check