/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-SemanticLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread/stateful01-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 07:33:45,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 07:33:45,718 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 07:33:45,733 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 07:33:45,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 07:33:45,734 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 07:33:45,736 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 07:33:45,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 07:33:45,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 07:33:45,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 07:33:45,741 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 07:33:45,742 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 07:33:45,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 07:33:45,743 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 07:33:45,744 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 07:33:45,745 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 07:33:45,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 07:33:45,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 07:33:45,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 07:33:45,751 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 07:33:45,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 07:33:45,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 07:33:45,754 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 07:33:45,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 07:33:45,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 07:33:45,758 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 07:33:45,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 07:33:45,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 07:33:45,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 07:33:45,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 07:33:45,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 07:33:45,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 07:33:45,762 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 07:33:45,763 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 07:33:45,764 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 07:33:45,764 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 07:33:45,765 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 07:33:45,765 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 07:33:45,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 07:33:45,766 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 07:33:45,767 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 07:33:45,768 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-SemanticLbe-McrStrategy.epf [2020-04-18 07:33:45,782 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 07:33:45,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 07:33:45,783 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 07:33:45,784 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 07:33:45,784 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 07:33:45,784 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 07:33:45,784 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 07:33:45,785 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 07:33:45,785 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 07:33:45,785 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 07:33:45,785 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 07:33:45,785 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 07:33:45,785 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 07:33:45,786 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 07:33:45,786 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 07:33:45,786 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 07:33:45,786 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 07:33:45,786 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 07:33:45,787 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 07:33:45,787 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 07:33:45,787 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 07:33:45,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 07:33:45,787 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 07:33:45,788 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 07:33:45,788 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 07:33:45,788 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 07:33:45,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 07:33:45,788 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 07:33:45,789 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 07:33:45,789 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 07:33:46,065 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 07:33:46,084 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 07:33:46,088 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 07:33:46,090 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 07:33:46,090 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 07:33:46,091 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-1.i [2020-04-18 07:33:46,168 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac464e67e/3b2df4d2aedc41fb8fb8f39383030cc4/FLAG5d1ff9179 [2020-04-18 07:33:46,693 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 07:33:46,694 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i [2020-04-18 07:33:46,712 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac464e67e/3b2df4d2aedc41fb8fb8f39383030cc4/FLAG5d1ff9179 [2020-04-18 07:33:47,118 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac464e67e/3b2df4d2aedc41fb8fb8f39383030cc4 [2020-04-18 07:33:47,126 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 07:33:47,143 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 07:33:47,144 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 07:33:47,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 07:33:47,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 07:33:47,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:33:47" (1/1) ... [2020-04-18 07:33:47,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46a4fbb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:47, skipping insertion in model container [2020-04-18 07:33:47,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:33:47" (1/1) ... [2020-04-18 07:33:47,166 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 07:33:47,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 07:33:47,628 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 07:33:47,642 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 07:33:47,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 07:33:47,792 INFO L208 MainTranslator]: Completed translation [2020-04-18 07:33:47,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:47 WrapperNode [2020-04-18 07:33:47,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 07:33:47,793 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 07:33:47,794 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 07:33:47,794 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 07:33:47,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:47" (1/1) ... [2020-04-18 07:33:47,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:47" (1/1) ... [2020-04-18 07:33:47,861 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 07:33:47,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 07:33:47,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 07:33:47,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 07:33:47,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:47" (1/1) ... [2020-04-18 07:33:47,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:47" (1/1) ... [2020-04-18 07:33:47,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:47" (1/1) ... [2020-04-18 07:33:47,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:47" (1/1) ... [2020-04-18 07:33:47,880 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:47" (1/1) ... [2020-04-18 07:33:47,882 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:47" (1/1) ... [2020-04-18 07:33:47,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:47" (1/1) ... [2020-04-18 07:33:47,887 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 07:33:47,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 07:33:47,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 07:33:47,888 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 07:33:47,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:47" (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 [2020-04-18 07:33:47,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-18 07:33:47,957 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-04-18 07:33:47,957 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-04-18 07:33:47,958 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-04-18 07:33:47,958 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-04-18 07:33:47,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 07:33:47,958 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-04-18 07:33:47,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 07:33:47,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 07:33:47,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-04-18 07:33:47,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 07:33:47,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 07:33:47,963 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 07:33:48,399 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 07:33:48,399 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-04-18 07:33:48,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:33:48 BoogieIcfgContainer [2020-04-18 07:33:48,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 07:33:48,409 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 07:33:48,410 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 07:33:48,419 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 07:33:48,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:33:47" (1/3) ... [2020-04-18 07:33:48,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9d4efef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:33:48, skipping insertion in model container [2020-04-18 07:33:48,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:33:47" (2/3) ... [2020-04-18 07:33:48,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9d4efef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:33:48, skipping insertion in model container [2020-04-18 07:33:48,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:33:48" (3/3) ... [2020-04-18 07:33:48,423 INFO L109 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2020-04-18 07:33:48,435 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 07:33:48,435 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 07:33:48,441 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 07:33:48,442 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 07:33:48,465 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,466 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,466 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,467 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,468 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,468 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,468 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,468 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,469 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,469 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,473 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,474 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,474 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,474 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,475 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,475 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,477 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,477 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,477 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,478 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,478 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,478 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,479 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,480 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,480 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,480 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,485 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,485 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,486 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,486 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,486 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,487 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,487 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,487 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,495 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,496 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,496 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,497 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,497 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,498 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:33:48,525 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-04-18 07:33:48,546 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 07:33:48,546 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 07:33:48,547 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 07:33:48,547 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 07:33:48,547 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 07:33:48,548 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 07:33:48,548 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 07:33:48,548 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 07:33:48,571 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 78 transitions, 178 flow [2020-04-18 07:33:48,573 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 82 places, 78 transitions, 178 flow [2020-04-18 07:33:48,632 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-04-18 07:33:48,632 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-04-18 07:33:48,636 INFO L80 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 78 events. 2/78 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 27. Up to 3 conditions per place. [2020-04-18 07:33:48,638 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 82 places, 78 transitions, 178 flow [2020-04-18 07:33:48,665 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-04-18 07:33:48,665 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-04-18 07:33:48,666 INFO L80 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 78 events. 2/78 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 27. Up to 3 conditions per place. [2020-04-18 07:33:48,668 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 680 [2020-04-18 07:33:48,672 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-18 07:33:50,357 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2020-04-18 07:33:50,904 WARN L192 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2020-04-18 07:33:51,080 WARN L192 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-04-18 07:33:51,099 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1930 [2020-04-18 07:33:51,100 INFO L214 etLargeBlockEncoding]: Total number of compositions: 52 [2020-04-18 07:33:51,103 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 30 transitions, 82 flow [2020-04-18 07:33:51,123 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 198 states. [2020-04-18 07:33:51,125 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2020-04-18 07:33:51,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 07:33:51,137 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:33:51,138 INFO L425 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] [2020-04-18 07:33:51,138 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:33:51,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:33:51,145 INFO L82 PathProgramCache]: Analyzing trace with hash 535203952, now seen corresponding path program 1 times [2020-04-18 07:33:51,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 07:33:51,152 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1223896124] [2020-04-18 07:33:51,169 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:33:51,194 INFO L259 McrAutomatonBuilder]: Finished intersection with 176 states and 373 transitions. [2020-04-18 07:33:51,198 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states. [2020-04-18 07:33:51,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 07:33:51,202 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 07:33:51,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:33:51,202 INFO L82 PathProgramCache]: Analyzing trace with hash 535203952, now seen corresponding path program 2 times [2020-04-18 07:33:51,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:33:51,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469459644] [2020-04-18 07:33:51,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:33:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:33:51,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:33:51,432 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469459644] [2020-04-18 07:33:51,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:33:51,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 07:33:51,435 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:33:51,439 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:33:51,467 INFO L259 McrAutomatonBuilder]: Finished intersection with 79 states and 140 transitions. [2020-04-18 07:33:51,468 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:33:51,488 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 07:33:51,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 07:33:51,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:33:51,495 INFO L87 Difference]: Start difference. First operand 176 states. Second operand 3 states. [2020-04-18 07:33:51,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:33:51,542 INFO L93 Difference]: Finished difference Result 251 states and 513 transitions. [2020-04-18 07:33:51,543 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 513 transitions. [2020-04-18 07:33:51,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 07:33:51,549 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 07:33:51,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:33:51,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1346228208, now seen corresponding path program 3 times [2020-04-18 07:33:51,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:33:51,553 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506065193] [2020-04-18 07:33:51,553 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:33:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:33:51,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:33:51,719 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506065193] [2020-04-18 07:33:51,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:33:51,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 07:33:51,720 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:33:51,724 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:33:51,736 INFO L259 McrAutomatonBuilder]: Finished intersection with 64 states and 101 transitions. [2020-04-18 07:33:51,737 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:33:51,770 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 07:33:51,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 07:33:51,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 07:33:51,771 INFO L87 Difference]: Start difference. First operand 251 states and 513 transitions. Second operand 5 states. [2020-04-18 07:33:51,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:33:51,816 INFO L93 Difference]: Finished difference Result 251 states and 513 transitions. [2020-04-18 07:33:51,818 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 513 transitions. [2020-04-18 07:33:51,820 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:33:51,821 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1223896124] [2020-04-18 07:33:51,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 07:33:51,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-04-18 07:33:51,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1223896124] [2020-04-18 07:33:51,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 07:33:51,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 07:33:51,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 07:33:51,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-04-18 07:33:51,841 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 6 states. [2020-04-18 07:33:51,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:33:51,975 INFO L93 Difference]: Finished difference Result 150 states and 253 transitions. [2020-04-18 07:33:51,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-04-18 07:33:51,977 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-04-18 07:33:51,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:33:51,986 INFO L225 Difference]: With dead ends: 150 [2020-04-18 07:33:51,986 INFO L226 Difference]: Without dead ends: 122 [2020-04-18 07:33:51,990 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:33:52,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-04-18 07:33:52,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2020-04-18 07:33:52,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-04-18 07:33:52,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 201 transitions. [2020-04-18 07:33:52,036 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 201 transitions. Word has length 25 [2020-04-18 07:33:52,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:33:52,037 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 201 transitions. [2020-04-18 07:33:52,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 07:33:52,037 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 201 transitions. [2020-04-18 07:33:52,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 07:33:52,038 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:33:52,038 INFO L425 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] [2020-04-18 07:33:52,038 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:33:52,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:33:52,039 INFO L82 PathProgramCache]: Analyzing trace with hash 352163958, now seen corresponding path program 1 times [2020-04-18 07:33:52,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 07:33:52,039 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [117734652] [2020-04-18 07:33:52,040 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:33:52,045 INFO L259 McrAutomatonBuilder]: Finished intersection with 170 states and 361 transitions. [2020-04-18 07:33:52,046 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states. [2020-04-18 07:33:52,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 07:33:52,047 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 07:33:52,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:33:52,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1548960698, now seen corresponding path program 2 times [2020-04-18 07:33:52,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:33:52,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045224310] [2020-04-18 07:33:52,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:33:52,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:33:52,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:33:52,093 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045224310] [2020-04-18 07:33:52,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:33:52,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 07:33:52,093 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 07:33:52,097 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 07:33:52,107 INFO L259 McrAutomatonBuilder]: Finished intersection with 58 states and 98 transitions. [2020-04-18 07:33:52,107 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 07:33:52,112 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 07:33:52,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 07:33:52,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 07:33:52,113 INFO L87 Difference]: Start difference. First operand 170 states. Second operand 3 states. [2020-04-18 07:33:52,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:33:52,130 INFO L93 Difference]: Finished difference Result 239 states and 489 transitions. [2020-04-18 07:33:52,131 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 489 transitions. [2020-04-18 07:33:52,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-04-18 07:33:52,132 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 07:33:52,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:33:52,132 INFO L82 PathProgramCache]: Analyzing trace with hash 352163958, now seen corresponding path program 3 times [2020-04-18 07:33:52,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:33:52,133 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049517323] [2020-04-18 07:33:52,133 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:33:52,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 07:33:52,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 07:33:52,293 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 07:33:52,293 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 07:33:52,293 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 07:33:52,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 07:33:52 BasicIcfg [2020-04-18 07:33:52,346 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 07:33:52,350 INFO L168 Benchmark]: Toolchain (without parser) took 5222.10 ms. Allocated memory was 134.7 MB in the beginning and 256.4 MB in the end (delta: 121.6 MB). Free memory was 97.0 MB in the beginning and 145.9 MB in the end (delta: -48.8 MB). Peak memory consumption was 72.8 MB. Max. memory is 7.1 GB. [2020-04-18 07:33:52,353 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 134.7 MB. Free memory was 116.6 MB in the beginning and 116.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-04-18 07:33:52,354 INFO L168 Benchmark]: CACSL2BoogieTranslator took 648.61 ms. Allocated memory was 134.7 MB in the beginning and 198.2 MB in the end (delta: 63.4 MB). Free memory was 95.0 MB in the beginning and 157.4 MB in the end (delta: -62.4 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2020-04-18 07:33:52,355 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.63 ms. Allocated memory is still 198.2 MB. Free memory was 157.4 MB in the beginning and 155.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-04-18 07:33:52,356 INFO L168 Benchmark]: Boogie Preprocessor took 25.88 ms. Allocated memory is still 198.2 MB. Free memory was 155.2 MB in the beginning and 153.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-04-18 07:33:52,359 INFO L168 Benchmark]: RCFGBuilder took 518.91 ms. Allocated memory is still 198.2 MB. Free memory was 153.1 MB in the beginning and 129.4 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2020-04-18 07:33:52,360 INFO L168 Benchmark]: TraceAbstraction took 3938.60 ms. Allocated memory was 198.2 MB in the beginning and 256.4 MB in the end (delta: 58.2 MB). Free memory was 129.4 MB in the beginning and 145.9 MB in the end (delta: -16.4 MB). Peak memory consumption was 41.8 MB. Max. memory is 7.1 GB. [2020-04-18 07:33:52,368 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 134.7 MB. Free memory was 116.6 MB in the beginning and 116.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 648.61 ms. Allocated memory was 134.7 MB in the beginning and 198.2 MB in the end (delta: 63.4 MB). Free memory was 95.0 MB in the beginning and 157.4 MB in the end (delta: -62.4 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 67.63 ms. Allocated memory is still 198.2 MB. Free memory was 157.4 MB in the beginning and 155.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.88 ms. Allocated memory is still 198.2 MB. Free memory was 155.2 MB in the beginning and 153.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 518.91 ms. Allocated memory is still 198.2 MB. Free memory was 153.1 MB in the beginning and 129.4 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3938.60 ms. Allocated memory was 198.2 MB in the beginning and 256.4 MB in the end (delta: 58.2 MB). Free memory was 129.4 MB in the beginning and 145.9 MB in the end (delta: -16.4 MB). Peak memory consumption was 41.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.5s, 82 ProgramPointsBefore, 35 ProgramPointsAfterwards, 78 TransitionsBefore, 30 TransitionsAfterwards, 680 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 289 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 13 SemBasedMoverChecksPositive, 33 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 1930 CheckedPairsTotal, 52 TotalNumberOfCompositions - CounterExampleResult [Line: 708]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L673] 0 pthread_mutex_t ma, mb; [L674] 0 int data1, data2; [L697] 0 pthread_t t1, t2; [L700] 0 data1 = 10 [L701] 0 data2 = 10 [L702] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data1=10, data2=10, ma={5:0}, mb={6:0}] [L703] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, data1=10, data2=10, ma={5:0}, mb={6:0}] [L688] 2 data1+=5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, data1=15, data2=10, ma={5:0}, mb={6:0}] [L704] 0 \read(t1) VAL [arg={0:0}, arg={0:0}, arg={0:0}, data1=15, data2=10, ma={5:0}, mb={6:0}] [L691] 2 data2-=6 VAL [arg={0:0}, arg={0:0}, arg={0:0}, data1=15, data2=4, ma={5:0}, mb={6:0}] [L693] 2 return 0; [L678] 1 data1++ VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=4, ma={5:0}, mb={6:0}] [L681] 1 data2++ VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={5:0}, mb={6:0}] [L683] 1 return 0; [L704] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={5:0}, mb={6:0}] [L705] 0 \read(t2) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={5:0}, mb={6:0}] [L705] FCALL, JOIN 2 pthread_join(t2, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={5:0}, mb={6:0}] [L706] COND TRUE 0 data1==16 && data2==5 [L708] 0 __VERIFIER_error() VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={5:0}, mb={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 38 SDtfs, 41 SDslu, 39 SDs, 0 SdLazy, 53 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...