/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 10:50:51,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 10:50:51,781 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 10:50:51,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 10:50:51,792 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 10:50:51,793 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 10:50:51,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 10:50:51,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 10:50:51,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 10:50:51,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 10:50:51,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 10:50:51,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 10:50:51,800 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 10:50:51,801 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 10:50:51,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 10:50:51,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 10:50:51,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 10:50:51,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 10:50:51,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 10:50:51,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 10:50:51,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 10:50:51,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 10:50:51,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 10:50:51,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 10:50:51,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 10:50:51,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 10:50:51,815 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 10:50:51,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 10:50:51,816 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 10:50:51,817 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 10:50:51,817 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 10:50:51,818 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 10:50:51,818 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 10:50:51,819 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 10:50:51,820 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 10:50:51,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 10:50:51,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 10:50:51,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 10:50:51,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 10:50:51,822 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 10:50:51,822 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 10:50:51,823 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 10:50:51,837 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 10:50:51,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 10:50:51,838 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 10:50:51,839 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 10:50:51,839 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 10:50:51,839 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:50:51,839 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 10:50:51,839 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 10:50:51,839 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 10:50:51,840 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 10:50:51,840 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 10:50:51,840 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 10:50:51,840 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 10:50:51,840 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 10:50:51,840 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:50:51,841 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 10:50:51,841 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 10:50:51,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 10:50:51,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 10:50:51,841 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 10:50:51,842 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 10:50:51,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 10:50:51,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 10:50:51,842 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 10:50:51,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 10:50:51,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 10:50:51,843 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 10:50:51,843 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 10:50:51,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 10:50:52,005 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 10:50:52,019 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 10:50:52,022 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 10:50:52,023 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 10:50:52,024 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 10:50:52,024 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 10:50:52,085 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_wDoUGC/tmp/c1ddba22fd0a462cbb1ad6662d6e53ff/FLAGad0cbf75e [2020-07-01 10:50:52,411 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 10:50:52,411 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 10:50:52,418 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_wDoUGC/tmp/c1ddba22fd0a462cbb1ad6662d6e53ff/FLAGad0cbf75e [2020-07-01 10:50:52,827 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_wDoUGC/tmp/c1ddba22fd0a462cbb1ad6662d6e53ff [2020-07-01 10:50:52,838 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 10:50:52,839 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 10:50:52,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 10:50:52,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 10:50:52,844 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 10:50:52,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:50:52" (1/1) ... [2020-07-01 10:50:52,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60cf2c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:50:52, skipping insertion in model container [2020-07-01 10:50:52,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:50:52" (1/1) ... [2020-07-01 10:50:52,856 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 10:50:52,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 10:50:53,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:50:53,102 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 10:50:53,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:50:53,133 INFO L208 MainTranslator]: Completed translation [2020-07-01 10:50:53,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:50:53 WrapperNode [2020-07-01 10:50:53,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 10:50:53,134 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 10:50:53,135 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 10:50:53,135 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 10:50:53,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:50:53" (1/1) ... [2020-07-01 10:50:53,150 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:50:53" (1/1) ... [2020-07-01 10:50:53,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 10:50:53,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 10:50:53,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 10:50:53,169 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 10:50:53,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:50:53" (1/1) ... [2020-07-01 10:50:53,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:50:53" (1/1) ... [2020-07-01 10:50:53,179 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:50:53" (1/1) ... [2020-07-01 10:50:53,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:50:53" (1/1) ... [2020-07-01 10:50:53,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:50:53" (1/1) ... [2020-07-01 10:50:53,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:50:53" (1/1) ... [2020-07-01 10:50:53,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:50:53" (1/1) ... [2020-07-01 10:50:53,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 10:50:53,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 10:50:53,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 10:50:53,186 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 10:50:53,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:50:53" (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 10:50:53,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 10:50:53,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 10:50:53,264 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-07-01 10:50:53,264 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-07-01 10:50:53,423 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 10:50:53,423 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-01 10:50:53,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:50:53 BoogieIcfgContainer [2020-07-01 10:50:53,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 10:50:53,428 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 10:50:53,428 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 10:50:53,430 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 10:50:53,431 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:50:53" (1/1) ... [2020-07-01 10:50:53,444 INFO L313 BlockEncoder]: Initial Icfg 14 locations, 16 edges [2020-07-01 10:50:53,446 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 10:50:53,446 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 10:50:53,447 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 10:50:53,447 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:50:53,449 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 10:50:53,450 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 10:50:53,450 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 10:50:53,465 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 10:50:53,479 INFO L200 BlockEncoder]: SBE split 1 edges [2020-07-01 10:50:53,483 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 10:50:53,485 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:50:53,493 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 10:50:53,495 INFO L70 RemoveSinkStates]: Removed 6 edges and 5 locations by removing sink states [2020-07-01 10:50:53,497 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 10:50:53,497 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:50:53,498 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 10:50:53,498 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 10:50:53,498 INFO L313 BlockEncoder]: Encoded RCFG 8 locations, 9 edges [2020-07-01 10:50:53,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:50:53 BasicIcfg [2020-07-01 10:50:53,499 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 10:50:53,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 10:50:53,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 10:50:53,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 10:50:53,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 10:50:52" (1/4) ... [2020-07-01 10:50:53,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b42f7b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:50:53, skipping insertion in model container [2020-07-01 10:50:53,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:50:53" (2/4) ... [2020-07-01 10:50:53,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b42f7b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:50:53, skipping insertion in model container [2020-07-01 10:50:53,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:50:53" (3/4) ... [2020-07-01 10:50:53,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b42f7b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:50:53, skipping insertion in model container [2020-07-01 10:50:53,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:50:53" (4/4) ... [2020-07-01 10:50:53,508 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:50:53,519 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 10:50:53,525 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 10:50:53,539 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 10:50:53,562 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 10:50:53,562 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 10:50:53,562 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:50:53,563 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:50:53,563 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:50:53,563 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 10:50:53,563 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:50:53,563 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 10:50:53,580 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2020-07-01 10:50:53,585 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 10:50:53,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-07-01 10:50:53,650 INFO L271 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: true [2020-07-01 10:50:53,650 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 10:50:53,651 INFO L268 CegarLoopResult]: For program point sumEXIT(lines 3 9) no Hoare annotation was computed. [2020-07-01 10:50:53,651 INFO L271 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: true [2020-07-01 10:50:53,651 INFO L268 CegarLoopResult]: For program point L7-1(line 7) no Hoare annotation was computed. [2020-07-01 10:50:53,651 INFO L268 CegarLoopResult]: For program point L4(lines 4 8) no Hoare annotation was computed. [2020-07-01 10:50:53,651 INFO L268 CegarLoopResult]: For program point sumFINAL(lines 3 9) no Hoare annotation was computed. [2020-07-01 10:50:53,652 INFO L271 CegarLoopResult]: At program point sumENTRY(lines 3 9) the Hoare annotation is: true [2020-07-01 10:50:53,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:50:53 BasicIcfg [2020-07-01 10:50:53,655 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 10:50:53,656 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 10:50:53,656 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 10:50:53,660 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 10:50:53,661 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:50:53,661 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 10:50:52" (1/5) ... [2020-07-01 10:50:53,662 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4485b3b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:50:53, skipping insertion in model container [2020-07-01 10:50:53,662 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:50:53,663 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:50:53" (2/5) ... [2020-07-01 10:50:53,663 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4485b3b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:50:53, skipping insertion in model container [2020-07-01 10:50:53,663 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:50:53,663 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:50:53" (3/5) ... [2020-07-01 10:50:53,664 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4485b3b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:50:53, skipping insertion in model container [2020-07-01 10:50:53,664 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:50:53,664 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:50:53" (4/5) ... [2020-07-01 10:50:53,664 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4485b3b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:50:53, skipping insertion in model container [2020-07-01 10:50:53,664 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:50:53,664 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:50:53" (5/5) ... [2020-07-01 10:50:53,666 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:50:53,694 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 10:50:53,694 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 10:50:53,694 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:50:53,694 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:50:53,695 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:50:53,695 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 10:50:53,695 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:50:53,695 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 10:50:53,698 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-07-01 10:50:53,716 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 10:50:53,716 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:50:53,716 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:50:53,723 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 10:50:53,723 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 10:50:53,723 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 10:50:53,724 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-07-01 10:50:53,725 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 10:50:53,725 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:50:53,725 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:50:53,725 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 10:50:53,725 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 10:50:53,730 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue [34] ULTIMATE.startENTRY-->L14: Formula: (and (= v_ULTIMATE.start_main_~a~0_1 2) (= v_ULTIMATE.start_main_~b~0_1 3)) InVars {} OutVars{ULTIMATE.start_main_#t~ret1=|v_ULTIMATE.start_main_#t~ret1_1|, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_1, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~result~0=v_ULTIMATE.start_main_~result~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~ret1, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~b~0, ULTIMATE.start_main_~result~0] 8#L14true [39] L14-->sumENTRY: Formula: (and (= |v_sum_#in~nInParam_1| v_ULTIMATE.start_main_~a~0_7) (= |v_sum_#in~mInParam_1| v_ULTIMATE.start_main_~b~0_7)) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} OutVars{sum_#in~m=|v_sum_#in~mInParam_1|, sum_#in~n=|v_sum_#in~nInParam_1|} AuxVars[] AssignedVars[sum_#in~m, sum_#in~n]< 4#sumENTRYtrue [2020-07-01 10:50:53,731 INFO L796 eck$LassoCheckResult]: Loop: 4#sumENTRYtrue [33] sumENTRY-->L4: Formula: (and (= v_sum_~n_4 |v_sum_#in~n_1|) (= v_sum_~m_3 |v_sum_#in~m_1|)) InVars {sum_#in~m=|v_sum_#in~m_1|, sum_#in~n=|v_sum_#in~n_1|} OutVars{sum_~n=v_sum_~n_4, sum_~m=v_sum_~m_3, sum_#in~m=|v_sum_#in~m_1|, sum_#in~n=|v_sum_#in~n_1|} AuxVars[] AssignedVars[sum_~n, sum_~m] 6#L4true [42] L4-->L7: Formula: (> v_sum_~n_2 0) InVars {sum_~n=v_sum_~n_2} OutVars{sum_~n=v_sum_~n_2} AuxVars[] AssignedVars[] 9#L7true [32] L7-->sumENTRY: Formula: (and (= |v_sum_#in~nInParam_2| (+ v_sum_~n_5 (- 1))) (= |v_sum_#in~mInParam_2| (+ v_sum_~m_4 1))) InVars {sum_~n=v_sum_~n_5, sum_~m=v_sum_~m_4} OutVars{sum_#in~m=|v_sum_#in~mInParam_2|, sum_#in~n=|v_sum_#in~nInParam_2|} AuxVars[] AssignedVars[sum_#in~m, sum_#in~n]< 4#sumENTRYtrue [2020-07-01 10:50:53,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:50:53,737 INFO L82 PathProgramCache]: Analyzing trace with hash 2054, now seen corresponding path program 1 times [2020-07-01 10:50:53,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:50:53,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655007386] [2020-07-01 10:50:53,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:50:53,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:50:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:50:53,825 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:50:53,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:50:53,826 INFO L82 PathProgramCache]: Analyzing trace with hash 62838, now seen corresponding path program 1 times [2020-07-01 10:50:53,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:50:53,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849150055] [2020-07-01 10:50:53,827 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:50:53,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:50:53,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:50:53,840 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:50:53,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:50:53,842 INFO L82 PathProgramCache]: Analyzing trace with hash 61223761, now seen corresponding path program 1 times [2020-07-01 10:50:53,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:50:53,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199298027] [2020-07-01 10:50:53,843 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:50:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:50:53,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:50:53,864 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:50:53,965 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:50:53,966 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:50:53,966 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:50:53,967 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:50:53,967 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:50:53,967 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:50:53,967 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:50:53,967 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:50:53,967 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 10:50:53,968 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:50:53,968 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:50:53,984 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 10:50:53,993 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 10:50:53,997 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 10:50:54,009 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 10:50:54,016 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 10:50:54,028 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 10:50:54,114 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:50:54,114 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 10:50:54,121 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:50:54,122 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:50:54,131 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:50:54,131 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#res=0} Honda state: {sum_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 10:50:54,165 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:50:54,165 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:50:54,169 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:50:54,169 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_~m=0} Honda state: {sum_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 10:50:54,201 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:50:54,201 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 10:50:54,237 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:50:54,238 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:50:54,274 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:50:54,276 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:50:54,277 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:50:54,277 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:50:54,277 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:50:54,277 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:50:54,277 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:50:54,277 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:50:54,277 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:50:54,278 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 10:50:54,278 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:50:54,278 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:50:54,279 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 10:50:54,283 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 10:50:54,286 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 10:50:54,295 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 10:50:54,298 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 10:50:54,302 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 10:50:54,353 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:50:54,358 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 10:50:54,363 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 10:50:54,365 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:50:54,366 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:50:54,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:50:54,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:50:54,367 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:50:54,369 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:50:54,369 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:50:54,372 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 10:50:54,404 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 10:50:54,406 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:50:54,406 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:50:54,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:50:54,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:50:54,407 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:50:54,408 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:50:54,408 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:50:54,410 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 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 10:50:54,442 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 10:50:54,444 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:50:54,444 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:50:54,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:50:54,445 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:50:54,445 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:50:54,446 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:50:54,446 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:50:54,449 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:50:54,455 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 10:50:54,455 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:50:54,462 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:50:54,462 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 10:50:54,462 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:50:54,463 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(sum_#in~n) = 1*sum_#in~n Supporting invariants [] [2020-07-01 10:50:54,497 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 10:50:54,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:50:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:50:54,548 INFO L264 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 10:50:54,549 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:50:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:50:54,571 INFO L264 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 10:50:54,572 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:50:54,603 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 10:50:54,626 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 10:50:54,631 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 3 loop predicates [2020-07-01 10:50:54,633 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 8 states. Second operand 4 states. [2020-07-01 10:50:54,712 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 8 states.. Second operand 4 states. Result 32 states and 36 transitions. Complement of second has 15 states. [2020-07-01 10:50:54,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-07-01 10:50:54,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 10:50:54,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2020-07-01 10:50:54,718 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 2 letters. Loop has 3 letters. [2020-07-01 10:50:54,720 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:50:54,721 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 5 letters. Loop has 3 letters. [2020-07-01 10:50:54,721 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:50:54,721 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 2 letters. Loop has 6 letters. [2020-07-01 10:50:54,722 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:50:54,732 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 36 transitions. [2020-07-01 10:50:54,736 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 10:50:54,739 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2020-07-01 10:50:54,740 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 10:50:54,740 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 10:50:54,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 10:50:54,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 10:50:54,741 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:50:54,742 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:50:54,742 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:50:54,742 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 10:50:54,742 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 10:50:54,742 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 10:50:54,742 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 10:50:54,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:50:54 BasicIcfg [2020-07-01 10:50:54,748 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 10:50:54,751 INFO L168 Benchmark]: Toolchain (without parser) took 1910.98 ms. Allocated memory was 649.6 MB in the beginning and 680.0 MB in the end (delta: 30.4 MB). Free memory was 562.7 MB in the beginning and 498.7 MB in the end (delta: 64.0 MB). Peak memory consumption was 94.4 MB. Max. memory is 50.3 GB. [2020-07-01 10:50:54,752 INFO L168 Benchmark]: CDTParser took 0.17 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 10:50:54,752 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.55 ms. Allocated memory was 649.6 MB in the beginning and 680.0 MB in the end (delta: 30.4 MB). Free memory was 562.7 MB in the beginning and 643.5 MB in the end (delta: -80.8 MB). Peak memory consumption was 28.3 MB. Max. memory is 50.3 GB. [2020-07-01 10:50:54,753 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.99 ms. Allocated memory is still 680.0 MB. Free memory was 643.5 MB in the beginning and 642.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 10:50:54,754 INFO L168 Benchmark]: Boogie Preprocessor took 16.85 ms. Allocated memory is still 680.0 MB. Free memory was 642.1 MB in the beginning and 640.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 10:50:54,754 INFO L168 Benchmark]: RCFGBuilder took 242.04 ms. Allocated memory is still 680.0 MB. Free memory was 640.8 MB in the beginning and 625.1 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 50.3 GB. [2020-07-01 10:50:54,755 INFO L168 Benchmark]: BlockEncodingV2 took 70.87 ms. Allocated memory is still 680.0 MB. Free memory was 625.1 MB in the beginning and 621.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 50.3 GB. [2020-07-01 10:50:54,756 INFO L168 Benchmark]: TraceAbstraction took 155.37 ms. Allocated memory is still 680.0 MB. Free memory was 619.8 MB in the beginning and 610.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 50.3 GB. [2020-07-01 10:50:54,756 INFO L168 Benchmark]: BuchiAutomizer took 1092.41 ms. Allocated memory is still 680.0 MB. Free memory was 610.2 MB in the beginning and 498.7 MB in the end (delta: 111.6 MB). Peak memory consumption was 111.6 MB. Max. memory is 50.3 GB. [2020-07-01 10:50:54,760 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 14 locations, 16 edges - StatisticsResult: Encoded RCFG 8 locations, 9 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 293.55 ms. Allocated memory was 649.6 MB in the beginning and 680.0 MB in the end (delta: 30.4 MB). Free memory was 562.7 MB in the beginning and 643.5 MB in the end (delta: -80.8 MB). Peak memory consumption was 28.3 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.99 ms. Allocated memory is still 680.0 MB. Free memory was 643.5 MB in the beginning and 642.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 16.85 ms. Allocated memory is still 680.0 MB. Free memory was 642.1 MB in the beginning and 640.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 242.04 ms. Allocated memory is still 680.0 MB. Free memory was 640.8 MB in the beginning and 625.1 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 70.87 ms. Allocated memory is still 680.0 MB. Free memory was 625.1 MB in the beginning and 621.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 50.3 GB. * TraceAbstraction took 155.37 ms. Allocated memory is still 680.0 MB. Free memory was 619.8 MB in the beginning and 610.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1092.41 ms. Allocated memory is still 680.0 MB. Free memory was 610.2 MB in the beginning and 498.7 MB in the end (delta: 111.6 MB). Peak memory consumption was 111.6 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 8 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=8occurred 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, 3 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 3 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 0 deterministic, 1 nondeterministic). One nondeterministic module has affine ranking function \old(n) and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 13 SDtfs, 18 SDslu, 9 SDs, 0 SdLazy, 17 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 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: 12ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 10:50:49.558 ----------------------------------------------- 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_wDoUGC/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 10:50:55.197 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check