/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 12:06:06,954 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:06:06,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:06:06,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:06:06,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:06:06,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:06:06,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:06:06,971 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:06:06,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:06:06,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:06:06,974 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:06:06,975 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:06:06,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:06:06,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:06:06,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:06:06,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:06:06,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:06:06,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:06:06,982 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:06:06,983 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:06:06,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:06:06,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:06:06,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:06:06,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:06:06,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:06:06,990 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:06:06,990 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:06:06,991 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:06:06,991 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:06:06,992 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:06:06,992 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:06:06,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:06:06,994 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:06:06,994 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:06:06,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:06:06,996 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:06:06,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:06:06,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:06:06,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:06:06,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:06:06,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:06:06,999 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 12:06:07,013 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:06:07,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:06:07,014 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:06:07,014 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:06:07,014 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:06:07,014 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:06:07,015 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:06:07,015 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:06:07,015 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:06:07,015 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:06:07,015 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:06:07,016 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:06:07,016 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:06:07,016 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:06:07,016 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:06:07,016 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:06:07,016 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:06:07,017 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:06:07,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:06:07,017 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:06:07,017 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:06:07,017 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:06:07,017 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:06:07,018 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:06:07,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:06:07,018 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:06:07,018 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:06:07,018 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:06:07,018 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:06:07,181 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:06:07,194 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:06:07,197 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:06:07,199 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:06:07,199 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:06:07,200 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:06:07,263 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_H68_iV/tmp/15bb7ea940e94113bd967a5ba6a216f6/FLAGc66e8952a [2020-07-01 12:06:07,589 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:06:07,590 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:06:07,596 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_H68_iV/tmp/15bb7ea940e94113bd967a5ba6a216f6/FLAGc66e8952a [2020-07-01 12:06:08,000 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_H68_iV/tmp/15bb7ea940e94113bd967a5ba6a216f6 [2020-07-01 12:06:08,011 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:06:08,013 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:06:08,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:06:08,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:06:08,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:06:08,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,021 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e95a624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08, skipping insertion in model container [2020-07-01 12:06:08,021 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,029 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:06:08,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:06:08,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:06:08,276 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:06:08,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:06:08,306 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:06:08,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08 WrapperNode [2020-07-01 12:06:08,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:06:08,308 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:06:08,308 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:06:08,308 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:06:08,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,323 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,342 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:06:08,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:06:08,343 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:06:08,343 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:06:08,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:06:08,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:06:08,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:06:08,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:06:08,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (1/1) ... No working directory specified, using /export/starexec/sandbox2/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 12:06:08,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:06:08,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:06:08,598 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:06:08,598 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-01 12:06:08,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:06:08 BoogieIcfgContainer [2020-07-01 12:06:08,602 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:06:08,603 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:06:08,603 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:06:08,605 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:06:08,606 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,618 INFO L313 BlockEncoder]: Initial Icfg 10 locations, 13 edges [2020-07-01 12:06:08,619 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:06:08,620 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:06:08,620 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:06:08,621 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:06:08,622 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:06:08,623 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:06:08,623 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:06:08,637 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:06:08,643 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 12:06:08,649 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-07-01 12:06:08,650 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:06:08,668 INFO L100 BaseMinimizeStates]: Removed 12 edges and 6 locations by large block encoding [2020-07-01 12:06:08,671 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 12:06:08,672 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:06:08,672 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:06:08,673 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:06:08,673 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:06:08,673 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-07-01 12:06:08,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:06:08 BasicIcfg [2020-07-01 12:06:08,674 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:06:08,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:06:08,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:06:08,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:06:08,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:06:08" (1/4) ... [2020-07-01 12:06:08,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0d73ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:06:08, skipping insertion in model container [2020-07-01 12:06:08,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (2/4) ... [2020-07-01 12:06:08,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0d73ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:06:08, skipping insertion in model container [2020-07-01 12:06:08,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:06:08" (3/4) ... [2020-07-01 12:06:08,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0d73ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:06:08, skipping insertion in model container [2020-07-01 12:06:08,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:06:08" (4/4) ... [2020-07-01 12:06:08,684 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:06:08,694 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:06:08,701 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 12:06:08,715 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 12:06:08,738 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:06:08,738 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:06:08,738 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:06:08,738 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:06:08,739 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:06:08,739 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:06:08,739 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:06:08,739 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:06:08,753 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 12:06:08,758 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:06:08,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 12:06:08,814 INFO L271 CegarLoopResult]: At program point L4-3(line 4) the Hoare annotation is: true [2020-07-01 12:06:08,815 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:06:08,815 INFO L271 CegarLoopResult]: At program point L5-3(line 5) the Hoare annotation is: true [2020-07-01 12:06:08,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:06:08 BasicIcfg [2020-07-01 12:06:08,823 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:06:08,824 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:06:08,824 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:06:08,828 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:06:08,829 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:06:08,829 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:06:08" (1/5) ... [2020-07-01 12:06:08,829 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5edaabd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:06:08, skipping insertion in model container [2020-07-01 12:06:08,829 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:06:08,830 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (2/5) ... [2020-07-01 12:06:08,830 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5edaabd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:06:08, skipping insertion in model container [2020-07-01 12:06:08,830 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:06:08,830 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:06:08" (3/5) ... [2020-07-01 12:06:08,831 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5edaabd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:06:08, skipping insertion in model container [2020-07-01 12:06:08,831 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:06:08,831 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:06:08" (4/5) ... [2020-07-01 12:06:08,831 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5edaabd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:06:08, skipping insertion in model container [2020-07-01 12:06:08,832 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:06:08,832 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:06:08" (5/5) ... [2020-07-01 12:06:08,833 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:06:08,861 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:06:08,862 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:06:08,862 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:06:08,862 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:06:08,862 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:06:08,862 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:06:08,862 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:06:08,862 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:06:08,866 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 12:06:08,884 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-01 12:06:08,884 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:06:08,884 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:06:08,890 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:06:08,890 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 12:06:08,890 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:06:08,890 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 12:06:08,891 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-01 12:06:08,891 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:06:08,891 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:06:08,891 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:06:08,891 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 12:06:08,896 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [33] ULTIMATE.startENTRY-->L4-3: Formula: (and (= v_ULTIMATE.start_main_~i~0_1 0) (= v_ULTIMATE.start_main_~c~0_1 0)) InVars {} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#t~post0=|v_ULTIMATE.start_main_#t~post0_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~post0] 4#L4-3true [2020-07-01 12:06:08,897 INFO L796 eck$LassoCheckResult]: Loop: 4#L4-3true [48] L4-3-->L4-3: Formula: (and (< v_ULTIMATE.start_main_~i~0_11 100) (= (+ v_ULTIMATE.start_main_~i~0_11 1) v_ULTIMATE.start_main_~i~0_10) (= (+ v_ULTIMATE.start_main_~c~0_10 1) v_ULTIMATE.start_main_~c~0_9)) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_9, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10, ULTIMATE.start_main_#t~post0=|v_ULTIMATE.start_main_#t~post0_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~post0] 4#L4-3true [2020-07-01 12:06:08,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:06:08,904 INFO L82 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 1 times [2020-07-01 12:06:08,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:06:08,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390972336] [2020-07-01 12:06:08,913 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:06:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:08,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:08,984 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:06:08,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:06:08,985 INFO L82 PathProgramCache]: Analyzing trace with hash 79, now seen corresponding path program 1 times [2020-07-01 12:06:08,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:06:08,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676203338] [2020-07-01 12:06:08,986 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:06:08,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:08,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:09,000 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:06:09,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:06:09,002 INFO L82 PathProgramCache]: Analyzing trace with hash 2032, now seen corresponding path program 1 times [2020-07-01 12:06:09,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:06:09,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302909778] [2020-07-01 12:06:09,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:06:09,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:09,016 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:06:09,055 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:06:09,056 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:06:09,056 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:06:09,056 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:06:09,056 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:06:09,056 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:06:09,057 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:06:09,057 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:06:09,057 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:06:09,057 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:06:09,057 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:06:09,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:06:09,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:06:09,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:06:09,148 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:06:09,149 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:06:09,155 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:06:09,155 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:06:09,193 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:06:09,193 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:06:09,214 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:06:09,214 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=0}, {ULTIMATE.start_main_~c~0=2}, {ULTIMATE.start_main_~c~0=-1}] Lambdas: [11, 1, 1] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:06:09,247 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:06:09,248 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:06:09,284 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:06:09,284 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:06:09,322 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:06:09,324 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:06:09,324 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:06:09,324 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:06:09,324 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:06:09,325 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:06:09,325 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:06:09,325 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:06:09,325 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:06:09,325 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:06:09,325 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:06:09,325 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:06:09,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:06:09,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:06:09,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:06:09,397 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:06:09,403 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:06:09,409 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:06:09,412 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:06:09,412 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:06:09,413 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:06:09,413 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:06:09,413 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:06:09,416 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:06:09,416 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:06:09,420 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:06:09,453 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:06:09,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:06:09,455 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:06:09,456 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:06:09,456 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:06:09,456 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:06:09,457 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:06:09,458 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:06:09,461 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:06:09,465 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:06:09,465 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:06:09,471 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:06:09,471 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:06:09,471 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:06:09,472 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 199 Supporting invariants [] [2020-07-01 12:06:09,506 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:06:09,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:06:09,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:06:09,546 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:06:09,547 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:06:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:06:09,559 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:06:09,559 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:06:09,560 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 12:06:09,572 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 12:06:09,577 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-07-01 12:06:09,579 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 2 states. [2020-07-01 12:06:09,601 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 2 states. Result 6 states and 10 transitions. Complement of second has 4 states. [2020-07-01 12:06:09,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 12:06:09,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 12:06:09,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-07-01 12:06:09,606 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 1 letters. [2020-07-01 12:06:09,607 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:06:09,607 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-01 12:06:09,608 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:06:09,608 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 12:06:09,608 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:06:09,614 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 10 transitions. [2020-07-01 12:06:09,615 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:06:09,618 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 5 states and 7 transitions. [2020-07-01 12:06:09,619 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-07-01 12:06:09,619 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-07-01 12:06:09,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 7 transitions. [2020-07-01 12:06:09,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:06:09,621 INFO L688 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2020-07-01 12:06:09,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 7 transitions. [2020-07-01 12:06:09,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 4. [2020-07-01 12:06:09,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 12:06:09,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2020-07-01 12:06:09,648 INFO L711 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. [2020-07-01 12:06:09,648 INFO L591 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. [2020-07-01 12:06:09,648 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 12:06:09,648 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 6 transitions. [2020-07-01 12:06:09,649 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:06:09,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:06:09,649 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:06:09,649 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 12:06:09,650 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 12:06:09,650 INFO L794 eck$LassoCheckResult]: Stem: 37#ULTIMATE.startENTRY [33] ULTIMATE.startENTRY-->L4-3: Formula: (and (= v_ULTIMATE.start_main_~i~0_1 0) (= v_ULTIMATE.start_main_~c~0_1 0)) InVars {} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#t~post0=|v_ULTIMATE.start_main_#t~post0_1|, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_#t~post0] 38#L4-3 [49] L4-3-->L5-3: Formula: (and (<= 100 v_ULTIMATE.start_main_~i~0_12) (= 5 v_ULTIMATE.start_main_~j~0_9)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_9, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 40#L5-3 [2020-07-01 12:06:09,650 INFO L796 eck$LassoCheckResult]: Loop: 40#L5-3 [50] L5-3-->L5-3: Formula: (and (= (+ v_ULTIMATE.start_main_~j~0_11 3) v_ULTIMATE.start_main_~j~0_10) (< v_ULTIMATE.start_main_~j~0_11 21) (= v_ULTIMATE.start_main_~c~0_11 (+ v_ULTIMATE.start_main_~c~0_12 1))) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_11, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_12} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~c~0] 40#L5-3 [2020-07-01 12:06:09,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:06:09,651 INFO L82 PathProgramCache]: Analyzing trace with hash 2033, now seen corresponding path program 1 times [2020-07-01 12:06:09,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:06:09,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015134145] [2020-07-01 12:06:09,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:06:09,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:06:09,683 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 12:06:09,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015134145] [2020-07-01 12:06:09,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 12:06:09,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-01 12:06:09,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923951721] [2020-07-01 12:06:09,688 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-07-01 12:06:09,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:06:09,688 INFO L82 PathProgramCache]: Analyzing trace with hash 81, now seen corresponding path program 1 times [2020-07-01 12:06:09,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:06:09,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285770971] [2020-07-01 12:06:09,689 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:06:09,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:09,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:09,696 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:06:09,713 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:06:09,714 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:06:09,714 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:06:09,714 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:06:09,714 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:06:09,714 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:06:09,714 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:06:09,714 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:06:09,715 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:06:09,715 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:06:09,715 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:06:09,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:06:09,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:06:09,757 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:06:09,757 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:06:09,762 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:06:09,763 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:06:09,801 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:06:09,801 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:06:09,839 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:06:09,842 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:06:09,843 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:06:09,843 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:06:09,843 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:06:09,843 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:06:09,843 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:06:09,843 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:06:09,843 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:06:09,843 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:06:09,844 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:06:09,844 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:06:09,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:06:09,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:06:09,886 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:06:09,887 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:06:09,891 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:06:09,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:06:09,893 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:06:09,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:06:09,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:06:09,894 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:06:09,896 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:06:09,896 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:06:09,899 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:06:09,903 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:06:09,903 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:06:09,911 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:06:09,912 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:06:09,912 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:06:09,912 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 43 Supporting invariants [] [2020-07-01 12:06:09,944 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:06:09,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:06:09,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:06:09,966 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:06:09,967 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:06:09,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:06:09,973 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:06:09,973 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:06:09,973 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 12:06:09,973 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 12:06:09,974 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-07-01 12:06:09,974 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states and 6 transitions. cyclomatic complexity: 4 Second operand 2 states. [2020-07-01 12:06:09,979 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states and 6 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 5 states and 7 transitions. Complement of second has 2 states. [2020-07-01 12:06:09,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-07-01 12:06:09,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 12:06:09,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 6 transitions. [2020-07-01 12:06:09,980 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-01 12:06:09,980 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:06:09,980 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 3 letters. Loop has 1 letters. [2020-07-01 12:06:09,981 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:06:09,981 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 2 letters. Loop has 2 letters. [2020-07-01 12:06:09,981 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:06:09,982 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 7 transitions. [2020-07-01 12:06:09,983 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:06:09,983 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 0 states and 0 transitions. [2020-07-01 12:06:09,983 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 12:06:09,983 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 12:06:09,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 12:06:09,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:06:09,984 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:06:09,984 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:06:09,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:06:09,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 12:06:09,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 12:06:09,987 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2020-07-01 12:06:09,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:06:09,990 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-01 12:06:09,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-01 12:06:09,991 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-07-01 12:06:09,991 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:06:09,991 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-07-01 12:06:09,991 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 12:06:09,992 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 12:06:09,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 12:06:09,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:06:09,992 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:06:09,992 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:06:09,993 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:06:09,993 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 12:06:09,993 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 12:06:09,993 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:06:09,993 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 12:06:09,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:06:09 BasicIcfg [2020-07-01 12:06:09,999 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:06:10,001 INFO L168 Benchmark]: Toolchain (without parser) took 1988.40 ms. Allocated memory was 649.6 MB in the beginning and 692.1 MB in the end (delta: 42.5 MB). Free memory was 561.3 MB in the beginning and 497.0 MB in the end (delta: 64.3 MB). Peak memory consumption was 106.8 MB. Max. memory is 50.3 GB. [2020-07-01 12:06:10,002 INFO L168 Benchmark]: CDTParser took 0.18 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 12:06:10,003 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.75 ms. Allocated memory was 649.6 MB in the beginning and 692.1 MB in the end (delta: 42.5 MB). Free memory was 561.3 MB in the beginning and 656.0 MB in the end (delta: -94.6 MB). Peak memory consumption was 27.9 MB. Max. memory is 50.3 GB. [2020-07-01 12:06:10,003 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.74 ms. Allocated memory is still 692.1 MB. Free memory was 654.9 MB in the beginning and 653.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:06:10,004 INFO L168 Benchmark]: Boogie Preprocessor took 19.48 ms. Allocated memory is still 692.1 MB. Free memory was 653.8 MB in the beginning and 652.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:06:10,004 INFO L168 Benchmark]: RCFGBuilder took 239.80 ms. Allocated memory is still 692.1 MB. Free memory was 652.7 MB in the beginning and 637.7 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:06:10,005 INFO L168 Benchmark]: BlockEncodingV2 took 71.39 ms. Allocated memory is still 692.1 MB. Free memory was 637.7 MB in the beginning and 632.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:06:10,005 INFO L168 Benchmark]: TraceAbstraction took 148.38 ms. Allocated memory is still 692.1 MB. Free memory was 632.3 MB in the beginning and 623.7 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:06:10,006 INFO L168 Benchmark]: BuchiAutomizer took 1175.07 ms. Allocated memory is still 692.1 MB. Free memory was 622.6 MB in the beginning and 497.0 MB in the end (delta: 125.5 MB). Peak memory consumption was 125.5 MB. Max. memory is 50.3 GB. [2020-07-01 12:06:10,010 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 13 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 293.75 ms. Allocated memory was 649.6 MB in the beginning and 692.1 MB in the end (delta: 42.5 MB). Free memory was 561.3 MB in the beginning and 656.0 MB in the end (delta: -94.6 MB). Peak memory consumption was 27.9 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.74 ms. Allocated memory is still 692.1 MB. Free memory was 654.9 MB in the beginning and 653.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.48 ms. Allocated memory is still 692.1 MB. Free memory was 653.8 MB in the beginning and 652.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 239.80 ms. Allocated memory is still 692.1 MB. Free memory was 652.7 MB in the beginning and 637.7 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 71.39 ms. Allocated memory is still 692.1 MB. Free memory was 637.7 MB in the beginning and 632.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 148.38 ms. Allocated memory is still 692.1 MB. Free memory was 632.3 MB in the beginning and 623.7 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1175.07 ms. Allocated memory is still 692.1 MB. Free memory was 622.6 MB in the beginning and 497.0 MB in the end (delta: 125.5 MB). Peak memory consumption was 125.5 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 4]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function -2 * i + 199 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * j + 43 and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 4 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 10 SDslu, 1 SDs, 0 SdLazy, 4 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 15ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 12:06:04.769 ----------------------------------------------- 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/sandbox2/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/sandbox2/tmp/BenchExec_run_H68_iV/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:06:10.644 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check