/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-18 02:43:25,460 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-18 02:43:25,465 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-18 02:43:25,507 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-18 02:43:25,507 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-18 02:43:25,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-18 02:43:25,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-18 02:43:25,516 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-18 02:43:25,519 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-18 02:43:25,523 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-18 02:43:25,524 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-18 02:43:25,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-18 02:43:25,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-18 02:43:25,527 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-18 02:43:25,531 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-18 02:43:25,532 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-18 02:43:25,532 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-18 02:43:25,536 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-18 02:43:25,538 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-18 02:43:25,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-18 02:43:25,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-18 02:43:25,552 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-18 02:43:25,553 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-18 02:43:25,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-18 02:43:25,557 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-18 02:43:25,563 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-18 02:43:25,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-18 02:43:25,565 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-18 02:43:25,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-18 02:43:25,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-18 02:43:25,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-18 02:43:25,568 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-18 02:43:25,568 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-18 02:43:25,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-18 02:43:25,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-18 02:43:25,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-18 02:43:25,571 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-18 02:43:25,620 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-18 02:43:25,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-18 02:43:25,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-18 02:43:25,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-18 02:43:25,624 INFO L138 SettingsManager]: * Use SBE=true [2020-09-18 02:43:25,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-18 02:43:25,624 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-18 02:43:25,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-18 02:43:25,624 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-18 02:43:25,625 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-18 02:43:25,626 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-18 02:43:25,626 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-18 02:43:25,626 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-18 02:43:25,627 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-18 02:43:25,627 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-18 02:43:25,627 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-18 02:43:25,627 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-18 02:43:25,627 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-18 02:43:25,628 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-18 02:43:25,628 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-18 02:43:25,628 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-18 02:43:25,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-18 02:43:25,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-18 02:43:25,629 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-18 02:43:25,629 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-18 02:43:25,629 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-18 02:43:25,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-18 02:43:25,629 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-18 02:43:25,630 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-18 02:43:25,630 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-18 02:43:25,630 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-18 02:43:26,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-18 02:43:26,072 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-18 02:43:26,077 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-18 02:43:26,079 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-18 02:43:26,079 INFO L275 PluginConnector]: CDTParser initialized [2020-09-18 02:43:26,081 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i [2020-09-18 02:43:26,152 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/662ab2bc4/16ad5f0b97774becbebe996213336675/FLAG6809c0a0e [2020-09-18 02:43:26,885 INFO L306 CDTParser]: Found 1 translation units. [2020-09-18 02:43:26,886 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i [2020-09-18 02:43:26,920 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/662ab2bc4/16ad5f0b97774becbebe996213336675/FLAG6809c0a0e [2020-09-18 02:43:27,008 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/662ab2bc4/16ad5f0b97774becbebe996213336675 [2020-09-18 02:43:27,022 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-18 02:43:27,030 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-18 02:43:27,031 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-18 02:43:27,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-18 02:43:27,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-18 02:43:27,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 02:43:27" (1/1) ... [2020-09-18 02:43:27,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e49187f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:43:27, skipping insertion in model container [2020-09-18 02:43:27,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 02:43:27" (1/1) ... [2020-09-18 02:43:27,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-18 02:43:27,119 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-18 02:43:27,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 02:43:27,976 INFO L203 MainTranslator]: Completed pre-run [2020-09-18 02:43:28,111 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 02:43:28,605 INFO L208 MainTranslator]: Completed translation [2020-09-18 02:43:28,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:43:28 WrapperNode [2020-09-18 02:43:28,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-18 02:43:28,609 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-18 02:43:28,609 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-18 02:43:28,609 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-18 02:43:28,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:43:28" (1/1) ... [2020-09-18 02:43:28,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:43:28" (1/1) ... [2020-09-18 02:43:28,703 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-18 02:43:28,703 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-18 02:43:28,703 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-18 02:43:28,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-18 02:43:28,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:43:28" (1/1) ... [2020-09-18 02:43:28,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:43:28" (1/1) ... [2020-09-18 02:43:28,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:43:28" (1/1) ... [2020-09-18 02:43:28,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:43:28" (1/1) ... [2020-09-18 02:43:28,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:43:28" (1/1) ... [2020-09-18 02:43:28,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:43:28" (1/1) ... [2020-09-18 02:43:28,755 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:43:28" (1/1) ... [2020-09-18 02:43:28,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-18 02:43:28,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-18 02:43:28,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-18 02:43:28,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-18 02:43:28,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:43:28" (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 [2020-09-18 02:43:28,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-18 02:43:28,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-18 02:43:28,852 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-09-18 02:43:28,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-18 02:43:28,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-18 02:43:28,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-18 02:43:28,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-18 02:43:28,855 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-09-18 02:43:28,856 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-09-18 02:43:28,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-18 02:43:28,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-18 02:43:28,859 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-18 02:43:29,459 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-18 02:43:29,460 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-09-18 02:43:29,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 02:43:29 BoogieIcfgContainer [2020-09-18 02:43:29,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-18 02:43:29,470 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-18 02:43:29,470 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-18 02:43:29,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-18 02:43:29,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 02:43:27" (1/3) ... [2020-09-18 02:43:29,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12c754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 02:43:29, skipping insertion in model container [2020-09-18 02:43:29,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 02:43:28" (2/3) ... [2020-09-18 02:43:29,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12c754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 02:43:29, skipping insertion in model container [2020-09-18 02:43:29,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 02:43:29" (3/3) ... [2020-09-18 02:43:29,480 INFO L109 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2020-09-18 02:43:29,494 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-18 02:43:29,494 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-18 02:43:29,507 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-09-18 02:43:29,509 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-18 02:43:29,542 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:29,543 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:29,543 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:29,543 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:29,544 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:29,544 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:29,544 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:29,544 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:29,550 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:29,550 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:29,550 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:29,551 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:29,551 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 02:43:29,587 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-18 02:43:29,616 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-18 02:43:29,616 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-18 02:43:29,616 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-18 02:43:29,616 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-18 02:43:29,616 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-18 02:43:29,617 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-18 02:43:29,617 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-18 02:43:29,617 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-18 02:43:29,639 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 85 transitions, 178 flow [2020-09-18 02:43:29,642 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 83 places, 85 transitions, 178 flow [2020-09-18 02:43:29,698 INFO L129 PetriNetUnfolder]: 5/96 cut-off events. [2020-09-18 02:43:29,698 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-09-18 02:43:29,704 INFO L80 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 96 events. 5/96 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 136 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 52. Up to 3 conditions per place. [2020-09-18 02:43:29,707 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 83 places, 85 transitions, 178 flow [2020-09-18 02:43:29,735 INFO L129 PetriNetUnfolder]: 5/96 cut-off events. [2020-09-18 02:43:29,735 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-09-18 02:43:29,736 INFO L80 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 96 events. 5/96 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 136 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 52. Up to 3 conditions per place. [2020-09-18 02:43:29,738 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 308 [2020-09-18 02:43:29,739 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-18 02:43:32,395 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2020-09-18 02:43:32,504 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-09-18 02:43:32,788 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-09-18 02:43:32,929 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-09-18 02:43:32,937 INFO L206 etLargeBlockEncoding]: Checked pairs total: 260 [2020-09-18 02:43:32,937 INFO L214 etLargeBlockEncoding]: Total number of compositions: 96 [2020-09-18 02:43:32,942 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 15 transitions, 38 flow [2020-09-18 02:43:32,953 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 21 states. [2020-09-18 02:43:32,956 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-09-18 02:43:32,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2020-09-18 02:43:32,964 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 02:43:32,965 INFO L422 BasicCegarLoop]: trace histogram [1] [2020-09-18 02:43:32,966 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 02:43:32,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 02:43:32,974 INFO L82 PathProgramCache]: Analyzing trace with hash 337, now seen corresponding path program 1 times [2020-09-18 02:43:32,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 02:43:32,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11619077] [2020-09-18 02:43:32,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 02:43:33,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 02:43:33,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 02:43:33,331 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11619077] [2020-09-18 02:43:33,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 02:43:33,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-09-18 02:43:33,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1955798220] [2020-09-18 02:43:33,345 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 02:43:33,351 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 02:43:33,363 INFO L274 McrAutomatonBuilder]: Finished intersection with 2 states and 1 transitions. [2020-09-18 02:43:33,363 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 02:43:33,365 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 02:43:33,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-18 02:43:33,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 02:43:33,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-18 02:43:33,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-18 02:43:33,384 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2020-09-18 02:43:33,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 02:43:33,394 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2020-09-18 02:43:33,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-18 02:43:33,396 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2020-09-18 02:43:33,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 02:43:33,407 INFO L225 Difference]: With dead ends: 18 [2020-09-18 02:43:33,408 INFO L226 Difference]: Without dead ends: 8 [2020-09-18 02:43:33,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-18 02:43:33,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-09-18 02:43:33,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-09-18 02:43:33,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-09-18 02:43:33,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2020-09-18 02:43:33,450 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 1 [2020-09-18 02:43:33,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 02:43:33,450 INFO L479 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2020-09-18 02:43:33,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-18 02:43:33,451 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2020-09-18 02:43:33,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-09-18 02:43:33,451 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 02:43:33,451 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-09-18 02:43:33,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-18 02:43:33,452 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 02:43:33,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 02:43:33,453 INFO L82 PathProgramCache]: Analyzing trace with hash 10399268, now seen corresponding path program 1 times [2020-09-18 02:43:33,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 02:43:33,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131732921] [2020-09-18 02:43:33,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 02:43:33,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 02:43:33,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 02:43:33,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131732921] [2020-09-18 02:43:33,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 02:43:33,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 02:43:33,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1511641636] [2020-09-18 02:43:33,662 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 02:43:33,662 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 02:43:33,663 INFO L274 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2020-09-18 02:43:33,664 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 02:43:33,664 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 02:43:33,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-18 02:43:33,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 02:43:33,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-18 02:43:33,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-18 02:43:33,667 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand 3 states. [2020-09-18 02:43:33,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 02:43:33,688 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-09-18 02:43:33,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-18 02:43:33,689 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-09-18 02:43:33,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 02:43:33,689 INFO L225 Difference]: With dead ends: 8 [2020-09-18 02:43:33,689 INFO L226 Difference]: Without dead ends: 6 [2020-09-18 02:43:33,690 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-18 02:43:33,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2020-09-18 02:43:33,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2020-09-18 02:43:33,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-09-18 02:43:33,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2020-09-18 02:43:33,693 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 4 [2020-09-18 02:43:33,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 02:43:33,693 INFO L479 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2020-09-18 02:43:33,693 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-18 02:43:33,693 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2020-09-18 02:43:33,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-09-18 02:43:33,694 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 02:43:33,694 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-09-18 02:43:33,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-18 02:43:33,694 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 02:43:33,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 02:43:33,695 INFO L82 PathProgramCache]: Analyzing trace with hash 322377750, now seen corresponding path program 1 times [2020-09-18 02:43:33,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 02:43:33,696 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782345386] [2020-09-18 02:43:33,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 02:43:33,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-18 02:43:33,745 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-18 02:43:33,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-18 02:43:33,776 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-18 02:43:33,811 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-18 02:43:33,812 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-18 02:43:33,812 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-18 02:43:33,812 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-09-18 02:43:33,818 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [276] [276] L1682-->L1696: Formula: (and (<= 0 (+ |ULTIMATE.start_module_init_#t~nondet31_In1171600440| 2147483648)) (not (= ULTIMATE.start_ldv_assert_~expression_Out1171600440 0)) (<= |ULTIMATE.start_module_init_#t~nondet31_In1171600440| 2147483647) (= ULTIMATE.start_ldv_assert_~expression_Out1171600440 |ULTIMATE.start_ldv_assert_#in~expression_In1171600440|)) InVars {ULTIMATE.start_module_init_#t~nondet31=|ULTIMATE.start_module_init_#t~nondet31_In1171600440|, ULTIMATE.start_ldv_assert_#in~expression=|ULTIMATE.start_ldv_assert_#in~expression_In1171600440|} OutVars{ULTIMATE.start_module_init_#t~nondet31=|ULTIMATE.start_module_init_#t~nondet31_In1171600440|, ULTIMATE.start_ldv_assert_#in~expression=|ULTIMATE.start_ldv_assert_#in~expression_In1171600440|, ULTIMATE.start_ldv_assert_~expression=ULTIMATE.start_ldv_assert_~expression_Out1171600440} AuxVars[] AssignedVars[ULTIMATE.start_ldv_assert_~expression] because there is no mapped edge [2020-09-18 02:43:33,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 02:43:33 BasicIcfg [2020-09-18 02:43:33,842 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-18 02:43:33,845 INFO L168 Benchmark]: Toolchain (without parser) took 6819.84 ms. Allocated memory was 147.8 MB in the beginning and 283.1 MB in the end (delta: 135.3 MB). Free memory was 100.7 MB in the beginning and 137.1 MB in the end (delta: -36.4 MB). Peak memory consumption was 98.9 MB. Max. memory is 7.1 GB. [2020-09-18 02:43:33,846 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-18 02:43:33,847 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1576.09 ms. Allocated memory was 147.8 MB in the beginning and 237.0 MB in the end (delta: 89.1 MB). Free memory was 100.0 MB in the beginning and 172.0 MB in the end (delta: -71.9 MB). Peak memory consumption was 73.3 MB. Max. memory is 7.1 GB. [2020-09-18 02:43:33,848 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.43 ms. Allocated memory is still 237.0 MB. Free memory was 170.5 MB in the beginning and 167.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-09-18 02:43:33,848 INFO L168 Benchmark]: Boogie Preprocessor took 60.04 ms. Allocated memory is still 237.0 MB. Free memory was 167.6 MB in the beginning and 166.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-18 02:43:33,849 INFO L168 Benchmark]: RCFGBuilder took 704.72 ms. Allocated memory is still 237.0 MB. Free memory was 164.7 MB in the beginning and 126.4 MB in the end (delta: 38.3 MB). Peak memory consumption was 38.3 MB. Max. memory is 7.1 GB. [2020-09-18 02:43:33,850 INFO L168 Benchmark]: TraceAbstraction took 4372.19 ms. Allocated memory was 237.0 MB in the beginning and 283.1 MB in the end (delta: 46.1 MB). Free memory was 126.4 MB in the beginning and 137.1 MB in the end (delta: -10.7 MB). Peak memory consumption was 35.5 MB. Max. memory is 7.1 GB. [2020-09-18 02:43:33,855 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1576.09 ms. Allocated memory was 147.8 MB in the beginning and 237.0 MB in the end (delta: 89.1 MB). Free memory was 100.0 MB in the beginning and 172.0 MB in the end (delta: -71.9 MB). Peak memory consumption was 73.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 94.43 ms. Allocated memory is still 237.0 MB. Free memory was 170.5 MB in the beginning and 167.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 60.04 ms. Allocated memory is still 237.0 MB. Free memory was 167.6 MB in the beginning and 166.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 704.72 ms. Allocated memory is still 237.0 MB. Free memory was 164.7 MB in the beginning and 126.4 MB in the end (delta: 38.3 MB). Peak memory consumption was 38.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4372.19 ms. Allocated memory was 237.0 MB in the beginning and 283.1 MB in the end (delta: 46.1 MB). Free memory was 126.4 MB in the beginning and 137.1 MB in the end (delta: -10.7 MB). Peak memory consumption was 35.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 3.2s, 83 ProgramPointsBefore, 17 ProgramPointsAfterwards, 85 TransitionsBefore, 15 TransitionsAfterwards, 308 CoEnabledTransitionPairs, 7 FixpointIterations, 58 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 8 ConcurrentYvCompositions, 4 ChoiceCompositions, 163 VarBasedMoverChecksPositive, 9 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 260 CheckedPairsTotal, 96 TotalNumberOfCompositions - CounterExampleResult [Line: 1682]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1683] 0 pthread_t t1; [L1684] 0 pthread_mutex_t mutex; [L1685] 0 int pdev; [L1694] 0 pdev = 1 [L1696] COND TRUE 0 __VERIFIER_nondet_int() [L1697] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={2:0}, pdev=1, t1={3:0}] [L1698] 0 pdev = 2 VAL [arg={0:0}, mutex={2:0}, pdev=2, t1={3:0}] [L1688] 1 pdev = 6 [L1690] 1 return 0; [L1682] COND TRUE 0 !expression [L1682] 0 __VERIFIER_error() VAL [\result={0:0}, arg={0:0}, arg={0:0}, mutex={2:0}, pdev=6, t1={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 80 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.3s, HoareTripleCheckerStatistics: 17 SDtfs, 0 SDslu, 1 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...