/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread/lazy01.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 23:25:34,430 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 23:25:34,433 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 23:25:34,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 23:25:34,444 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 23:25:34,445 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 23:25:34,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 23:25:34,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 23:25:34,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 23:25:34,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 23:25:34,452 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 23:25:34,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 23:25:34,453 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 23:25:34,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 23:25:34,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 23:25:34,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 23:25:34,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 23:25:34,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 23:25:34,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 23:25:34,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 23:25:34,465 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 23:25:34,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 23:25:34,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 23:25:34,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 23:25:34,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 23:25:34,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 23:25:34,471 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 23:25:34,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 23:25:34,473 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 23:25:34,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 23:25:34,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 23:25:34,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 23:25:34,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 23:25:34,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 23:25:34,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 23:25:34,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 23:25:34,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 23:25:34,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 23:25:34,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 23:25:34,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 23:25:34,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 23:25:34,480 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-MCR.epf [2019-12-27 23:25:34,495 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 23:25:34,495 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 23:25:34,496 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 23:25:34,496 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 23:25:34,497 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 23:25:34,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 23:25:34,497 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 23:25:34,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 23:25:34,497 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 23:25:34,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 23:25:34,498 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 23:25:34,499 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 23:25:34,499 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 23:25:34,499 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 23:25:34,499 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 23:25:34,499 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 23:25:34,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 23:25:34,501 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 23:25:34,501 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 23:25:34,501 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 23:25:34,502 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 23:25:34,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 23:25:34,502 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 23:25:34,502 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 23:25:34,503 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 23:25:34,503 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 23:25:34,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 23:25:34,503 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 23:25:34,504 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 23:25:34,504 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 23:25:34,505 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 23:25:34,505 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 23:25:34,763 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 23:25:34,776 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 23:25:34,780 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 23:25:34,782 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 23:25:34,782 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 23:25:34,783 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/lazy01.i [2019-12-27 23:25:34,860 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a3ac72b1/8eb9a48ca5b9412784cbe376751fc01b/FLAGcdf3e7024 [2019-12-27 23:25:35,399 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 23:25:35,400 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/lazy01.i [2019-12-27 23:25:35,411 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a3ac72b1/8eb9a48ca5b9412784cbe376751fc01b/FLAGcdf3e7024 [2019-12-27 23:25:35,735 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a3ac72b1/8eb9a48ca5b9412784cbe376751fc01b [2019-12-27 23:25:35,743 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 23:25:35,745 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 23:25:35,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 23:25:35,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 23:25:35,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 23:25:35,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 11:25:35" (1/1) ... [2019-12-27 23:25:35,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77deaad0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:25:35, skipping insertion in model container [2019-12-27 23:25:35,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 11:25:35" (1/1) ... [2019-12-27 23:25:35,760 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 23:25:35,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 23:25:36,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 23:25:36,298 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 23:25:36,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 23:25:36,473 INFO L208 MainTranslator]: Completed translation [2019-12-27 23:25:36,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:25:36 WrapperNode [2019-12-27 23:25:36,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 23:25:36,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 23:25:36,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 23:25:36,477 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 23:25:36,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:25:36" (1/1) ... [2019-12-27 23:25:36,505 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:25:36" (1/1) ... [2019-12-27 23:25:36,528 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 23:25:36,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 23:25:36,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 23:25:36,529 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 23:25:36,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:25:36" (1/1) ... [2019-12-27 23:25:36,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:25:36" (1/1) ... [2019-12-27 23:25:36,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:25:36" (1/1) ... [2019-12-27 23:25:36,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:25:36" (1/1) ... [2019-12-27 23:25:36,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:25:36" (1/1) ... [2019-12-27 23:25:36,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:25:36" (1/1) ... [2019-12-27 23:25:36,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:25:36" (1/1) ... [2019-12-27 23:25:36,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 23:25:36,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 23:25:36,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 23:25:36,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 23:25:36,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:25:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 23:25:36,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-27 23:25:36,639 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2019-12-27 23:25:36,640 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2019-12-27 23:25:36,640 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2019-12-27 23:25:36,640 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2019-12-27 23:25:36,640 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2019-12-27 23:25:36,640 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2019-12-27 23:25:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 23:25:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-12-27 23:25:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 23:25:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 23:25:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-27 23:25:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 23:25:36,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 23:25:36,643 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 23:25:37,042 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 23:25:37,043 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-27 23:25:37,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 11:25:37 BoogieIcfgContainer [2019-12-27 23:25:37,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 23:25:37,046 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 23:25:37,046 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 23:25:37,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 23:25:37,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 11:25:35" (1/3) ... [2019-12-27 23:25:37,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@376d0308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 11:25:37, skipping insertion in model container [2019-12-27 23:25:37,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:25:36" (2/3) ... [2019-12-27 23:25:37,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@376d0308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 11:25:37, skipping insertion in model container [2019-12-27 23:25:37,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 11:25:37" (3/3) ... [2019-12-27 23:25:37,053 INFO L109 eAbstractionObserver]: Analyzing ICFG lazy01.i [2019-12-27 23:25:37,064 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 23:25:37,064 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 23:25:37,073 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 23:25:37,074 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 23:25:37,102 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,103 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,103 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,103 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,104 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,104 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,104 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,105 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,105 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,105 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,105 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,106 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,106 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,107 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,107 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,107 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,107 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,108 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,108 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,109 WARN L315 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,109 WARN L315 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,109 WARN L315 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,110 WARN L315 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,110 WARN L315 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,111 WARN L315 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,112 WARN L315 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,112 WARN L315 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,117 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,119 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,119 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,119 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,120 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,120 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,136 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,137 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,137 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,138 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,138 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,142 WARN L315 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,143 WARN L315 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,143 WARN L315 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,144 WARN L315 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,144 WARN L315 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:25:37,175 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-27 23:25:37,191 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 23:25:37,191 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 23:25:37,192 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 23:25:37,192 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 23:25:37,192 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 23:25:37,192 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 23:25:37,192 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 23:25:37,192 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 23:25:37,204 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 81 places, 78 transitions [2019-12-27 23:25:37,394 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 3563 states. [2019-12-27 23:25:37,397 INFO L276 IsEmpty]: Start isEmpty. Operand 3563 states. [2019-12-27 23:25:37,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-27 23:25:37,414 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:25:37,415 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 23:25:37,416 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:25:37,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:25:37,444 INFO L82 PathProgramCache]: Analyzing trace with hash -821811881, now seen corresponding path program 1 times [2019-12-27 23:25:37,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:25:37,457 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601661936] [2019-12-27 23:25:37,458 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:25:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:25:37,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 23:25:37,794 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601661936] [2019-12-27 23:25:37,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:25:37,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 23:25:37,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [602074347] [2019-12-27 23:25:37,799 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:25:37,816 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:25:37,854 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 30 states and 29 transitions. [2019-12-27 23:25:37,855 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:25:37,862 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 23:25:37,863 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 23:25:37,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:25:37,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 23:25:37,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 23:25:37,892 INFO L87 Difference]: Start difference. First operand 3563 states. Second operand 3 states. [2019-12-27 23:25:38,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:25:38,046 INFO L93 Difference]: Finished difference Result 3443 states and 10693 transitions. [2019-12-27 23:25:38,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 23:25:38,050 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2019-12-27 23:25:38,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:25:38,106 INFO L225 Difference]: With dead ends: 3443 [2019-12-27 23:25:38,106 INFO L226 Difference]: Without dead ends: 1950 [2019-12-27 23:25:38,110 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 23:25:38,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2019-12-27 23:25:38,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1950. [2019-12-27 23:25:38,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1950 states. [2019-12-27 23:25:38,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1950 states to 1950 states and 5938 transitions. [2019-12-27 23:25:38,312 INFO L78 Accepts]: Start accepts. Automaton has 1950 states and 5938 transitions. Word has length 29 [2019-12-27 23:25:38,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:25:38,314 INFO L462 AbstractCegarLoop]: Abstraction has 1950 states and 5938 transitions. [2019-12-27 23:25:38,314 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 23:25:38,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1950 states and 5938 transitions. [2019-12-27 23:25:38,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-27 23:25:38,322 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:25:38,325 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 23:25:38,326 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:25:38,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:25:38,326 INFO L82 PathProgramCache]: Analyzing trace with hash -145779849, now seen corresponding path program 1 times [2019-12-27 23:25:38,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:25:38,332 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936695515] [2019-12-27 23:25:38,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:25:38,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:25:38,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 23:25:38,457 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936695515] [2019-12-27 23:25:38,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:25:38,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 23:25:38,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1012032849] [2019-12-27 23:25:38,458 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:25:38,465 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:25:38,476 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 54 states and 73 transitions. [2019-12-27 23:25:38,476 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:25:38,480 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-27 23:25:38,481 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 23:25:38,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:25:38,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 23:25:38,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 23:25:38,483 INFO L87 Difference]: Start difference. First operand 1950 states and 5938 transitions. Second operand 3 states. [2019-12-27 23:25:38,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:25:38,530 INFO L93 Difference]: Finished difference Result 1155 states and 3066 transitions. [2019-12-27 23:25:38,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 23:25:38,530 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-12-27 23:25:38,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:25:38,538 INFO L225 Difference]: With dead ends: 1155 [2019-12-27 23:25:38,538 INFO L226 Difference]: Without dead ends: 1131 [2019-12-27 23:25:38,539 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 23:25:38,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2019-12-27 23:25:38,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 1131. [2019-12-27 23:25:38,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1131 states. [2019-12-27 23:25:38,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1131 states to 1131 states and 3002 transitions. [2019-12-27 23:25:38,573 INFO L78 Accepts]: Start accepts. Automaton has 1131 states and 3002 transitions. Word has length 33 [2019-12-27 23:25:38,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:25:38,573 INFO L462 AbstractCegarLoop]: Abstraction has 1131 states and 3002 transitions. [2019-12-27 23:25:38,573 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 23:25:38,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1131 states and 3002 transitions. [2019-12-27 23:25:38,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 23:25:38,576 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:25:38,576 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 23:25:38,576 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:25:38,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:25:38,577 INFO L82 PathProgramCache]: Analyzing trace with hash -1424042579, now seen corresponding path program 1 times [2019-12-27 23:25:38,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:25:38,577 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719251168] [2019-12-27 23:25:38,578 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:25:38,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:25:38,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 23:25:38,669 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719251168] [2019-12-27 23:25:38,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:25:38,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 23:25:38,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [78719523] [2019-12-27 23:25:38,670 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:25:38,677 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:25:38,692 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 55 states and 74 transitions. [2019-12-27 23:25:38,692 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:25:38,707 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 4 times. [2019-12-27 23:25:38,708 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 23:25:38,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:25:38,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 23:25:38,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 23:25:38,710 INFO L87 Difference]: Start difference. First operand 1131 states and 3002 transitions. Second operand 4 states. [2019-12-27 23:25:38,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:25:38,771 INFO L93 Difference]: Finished difference Result 1083 states and 2870 transitions. [2019-12-27 23:25:38,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 23:25:38,773 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2019-12-27 23:25:38,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:25:38,779 INFO L225 Difference]: With dead ends: 1083 [2019-12-27 23:25:38,780 INFO L226 Difference]: Without dead ends: 1035 [2019-12-27 23:25:38,780 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 23:25:38,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2019-12-27 23:25:38,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 1035. [2019-12-27 23:25:38,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1035 states. [2019-12-27 23:25:38,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 2738 transitions. [2019-12-27 23:25:38,820 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 2738 transitions. Word has length 34 [2019-12-27 23:25:38,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:25:38,821 INFO L462 AbstractCegarLoop]: Abstraction has 1035 states and 2738 transitions. [2019-12-27 23:25:38,821 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 23:25:38,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 2738 transitions. [2019-12-27 23:25:38,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-27 23:25:38,824 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:25:38,825 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 23:25:38,826 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:25:38,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:25:38,826 INFO L82 PathProgramCache]: Analyzing trace with hash -927506349, now seen corresponding path program 1 times [2019-12-27 23:25:38,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:25:38,828 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260957237] [2019-12-27 23:25:38,828 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:25:38,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:25:38,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 23:25:38,963 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260957237] [2019-12-27 23:25:38,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:25:38,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 23:25:38,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1049171041] [2019-12-27 23:25:38,964 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:25:38,971 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:25:39,002 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 86 states and 134 transitions. [2019-12-27 23:25:39,002 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:25:39,003 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 23:25:39,004 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 23:25:39,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:25:39,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 23:25:39,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 23:25:39,005 INFO L87 Difference]: Start difference. First operand 1035 states and 2738 transitions. Second operand 5 states. [2019-12-27 23:25:39,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:25:39,068 INFO L93 Difference]: Finished difference Result 987 states and 2606 transitions. [2019-12-27 23:25:39,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 23:25:39,068 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2019-12-27 23:25:39,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:25:39,077 INFO L225 Difference]: With dead ends: 987 [2019-12-27 23:25:39,077 INFO L226 Difference]: Without dead ends: 939 [2019-12-27 23:25:39,077 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 23:25:39,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2019-12-27 23:25:39,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 939. [2019-12-27 23:25:39,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 939 states. [2019-12-27 23:25:39,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 2474 transitions. [2019-12-27 23:25:39,102 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 2474 transitions. Word has length 36 [2019-12-27 23:25:39,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:25:39,102 INFO L462 AbstractCegarLoop]: Abstraction has 939 states and 2474 transitions. [2019-12-27 23:25:39,102 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 23:25:39,103 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 2474 transitions. [2019-12-27 23:25:39,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-12-27 23:25:39,105 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:25:39,105 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 23:25:39,105 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:25:39,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:25:39,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1885673521, now seen corresponding path program 1 times [2019-12-27 23:25:39,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:25:39,106 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568178312] [2019-12-27 23:25:39,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:25:39,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 23:25:39,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 23:25:39,202 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 23:25:39,204 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 23:25:39,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 11:25:39 BasicIcfg [2019-12-27 23:25:39,269 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 23:25:39,272 INFO L168 Benchmark]: Toolchain (without parser) took 3526.49 ms. Allocated memory was 145.8 MB in the beginning and 249.6 MB in the end (delta: 103.8 MB). Free memory was 102.4 MB in the beginning and 136.1 MB in the end (delta: -33.7 MB). Peak memory consumption was 70.1 MB. Max. memory is 7.1 GB. [2019-12-27 23:25:39,273 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-12-27 23:25:39,274 INFO L168 Benchmark]: CACSL2BoogieTranslator took 728.38 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 102.2 MB in the beginning and 161.7 MB in the end (delta: -59.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2019-12-27 23:25:39,274 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.45 ms. Allocated memory is still 203.4 MB. Free memory was 161.7 MB in the beginning and 159.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 23:25:39,275 INFO L168 Benchmark]: Boogie Preprocessor took 37.36 ms. Allocated memory is still 203.4 MB. Free memory was 159.7 MB in the beginning and 158.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 23:25:39,276 INFO L168 Benchmark]: RCFGBuilder took 478.11 ms. Allocated memory is still 203.4 MB. Free memory was 158.4 MB in the beginning and 135.0 MB in the end (delta: 23.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2019-12-27 23:25:39,277 INFO L168 Benchmark]: TraceAbstraction took 2223.89 ms. Allocated memory was 203.4 MB in the beginning and 249.6 MB in the end (delta: 46.1 MB). Free memory was 135.0 MB in the beginning and 136.1 MB in the end (delta: -1.1 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. [2019-12-27 23:25:39,281 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 728.38 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 102.2 MB in the beginning and 161.7 MB in the end (delta: -59.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.45 ms. Allocated memory is still 203.4 MB. Free memory was 161.7 MB in the beginning and 159.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 37.36 ms. Allocated memory is still 203.4 MB. Free memory was 159.7 MB in the beginning and 158.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 478.11 ms. Allocated memory is still 203.4 MB. Free memory was 158.4 MB in the beginning and 135.0 MB in the end (delta: 23.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2223.89 ms. Allocated memory was 203.4 MB in the beginning and 249.6 MB in the end (delta: 46.1 MB). Free memory was 135.0 MB in the beginning and 136.1 MB in the end (delta: -1.1 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 703]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L683] 0 pthread_mutex_t mutex; VAL [mutex={5:0}] [L684] 0 int data = 0; VAL [data=0, mutex={5:0}] [L712] 0 pthread_t t1, t2, t3; VAL [data=0, mutex={5:0}] [L713] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data=0, mutex={5:0}] [L688] 1 data++ VAL [arg={0:0}, arg={0:0}, data=1, mutex={5:0}] [L714] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, data=1, mutex={5:0}] [L715] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=1, mutex={5:0}, pthread_mutex_lock(&mutex)=0] [L695] 2 data+=2 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={5:0}] [L702] COND TRUE 3 data >= 3 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={5:0}] [L703] 3 __VERIFIER_error() VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 72 locations, 1 error locations. Result: UNSAFE, OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 266 SDtfs, 115 SDslu, 284 SDs, 0 SdLazy, 41 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3563occurred 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: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 173 NumberOfCodeBlocks, 173 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 128 ConstructedInterpolants, 0 QuantifiedInterpolants, 9166 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...