/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 18:21:55,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 18:21:55,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 18:21:55,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-15 18:21:55,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 18:21:55,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 18:21:55,717 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 18:21:55,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 18:21:55,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 18:21:55,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 18:21:55,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 18:21:55,721 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 18:21:55,722 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 18:21:55,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 18:21:55,723 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 18:21:55,724 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 18:21:55,726 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-15 18:21:55,731 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 18:21:55,732 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 18:21:55,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 18:21:55,733 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 [2022-03-15 18:21:55,746 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 18:21:55,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 18:21:55,747 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 18:21:55,747 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 18:21:55,748 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 18:21:55,748 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 18:21:55,748 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 18:21:55,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 18:21:55,748 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 18:21:55,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 18:21:55,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 18:21:55,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 18:21:55,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 18:21:55,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 18:21:55,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 18:21:55,749 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 18:21:55,749 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 18:21:55,749 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 18:21:55,749 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 18:21:55,749 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 18:21:55,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 18:21:55,750 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 18:21:55,750 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 18:21:55,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 18:21:55,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 18:21:55,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 18:21:55,750 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 18:21:55,750 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 18:21:55,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 18:21:55,751 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 18:21:55,751 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 18:21:55,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 18:21:55,751 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 18:21:55,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 18:21:55,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 18:21:55,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 18:21:55,907 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 18:21:55,908 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 18:21:55,909 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2022-03-15 18:21:55,960 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bf835553/129b8d845bf841b5a20fcf60acf1fcf8/FLAG6b30e7acb [2022-03-15 18:21:56,375 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 18:21:56,376 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2022-03-15 18:21:56,386 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bf835553/129b8d845bf841b5a20fcf60acf1fcf8/FLAG6b30e7acb [2022-03-15 18:21:56,414 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bf835553/129b8d845bf841b5a20fcf60acf1fcf8 [2022-03-15 18:21:56,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 18:21:56,418 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 18:21:56,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 18:21:56,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 18:21:56,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 18:21:56,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 06:21:56" (1/1) ... [2022-03-15 18:21:56,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5633454b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:21:56, skipping insertion in model container [2022-03-15 18:21:56,439 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 06:21:56" (1/1) ... [2022-03-15 18:21:56,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 18:21:56,467 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 18:21:56,661 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i[1098,1111] [2022-03-15 18:21:56,776 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 18:21:56,786 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 18:21:56,795 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i[1098,1111] [2022-03-15 18:21:56,823 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 18:21:56,844 INFO L208 MainTranslator]: Completed translation [2022-03-15 18:21:56,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:21:56 WrapperNode [2022-03-15 18:21:56,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 18:21:56,845 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 18:21:56,845 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 18:21:56,845 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 18:21:56,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:21:56" (1/1) ... [2022-03-15 18:21:56,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:21:56" (1/1) ... [2022-03-15 18:21:56,880 INFO L137 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-03-15 18:21:56,880 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 18:21:56,881 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 18:21:56,881 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 18:21:56,881 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 18:21:56,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:21:56" (1/1) ... [2022-03-15 18:21:56,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:21:56" (1/1) ... [2022-03-15 18:21:56,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:21:56" (1/1) ... [2022-03-15 18:21:56,888 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:21:56" (1/1) ... [2022-03-15 18:21:56,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:21:56" (1/1) ... [2022-03-15 18:21:56,892 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:21:56" (1/1) ... [2022-03-15 18:21:56,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:21:56" (1/1) ... [2022-03-15 18:21:56,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 18:21:56,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 18:21:56,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 18:21:56,895 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 18:21:56,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:21:56" (1/1) ... [2022-03-15 18:21:56,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 18:21:56,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:21:56,927 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-15 18:21:56,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-15 18:21:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 18:21:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-03-15 18:21:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 18:21:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 18:21:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-03-15 18:21:56,973 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-03-15 18:21:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 18:21:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 18:21:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 18:21:56,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 18:21:56,974 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 18:21:57,050 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 18:21:57,051 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 18:21:57,167 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 18:21:57,172 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 18:21:57,172 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 18:21:57,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 06:21:57 BoogieIcfgContainer [2022-03-15 18:21:57,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 18:21:57,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 18:21:57,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 18:21:57,177 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 18:21:57,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 06:21:56" (1/3) ... [2022-03-15 18:21:57,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31962f7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 06:21:57, skipping insertion in model container [2022-03-15 18:21:57,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:21:56" (2/3) ... [2022-03-15 18:21:57,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31962f7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 06:21:57, skipping insertion in model container [2022-03-15 18:21:57,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 06:21:57" (3/3) ... [2022-03-15 18:21:57,178 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2022-03-15 18:21:57,181 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 18:21:57,182 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 18:21:57,182 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 18:21:57,182 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 18:21:57,201 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:21:57,202 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:21:57,202 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:21:57,202 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:21:57,202 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:21:57,202 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:21:57,202 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:21:57,202 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:21:57,203 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:21:57,203 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:21:57,203 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:21:57,203 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:21:57,203 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:21:57,203 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:21:57,204 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:21:57,204 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:21:57,204 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:21:57,204 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:21:57,205 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:21:57,205 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:21:57,207 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:21:57,207 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:21:57,207 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:21:57,207 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:21:57,207 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:21:57,207 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:21:57,209 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-15 18:21:57,239 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 18:21:57,243 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 18:21:57,244 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-15 18:21:57,251 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 18:21:57,257 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 78 transitions, 161 flow [2022-03-15 18:21:57,259 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 78 transitions, 161 flow [2022-03-15 18:21:57,260 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 78 transitions, 161 flow [2022-03-15 18:21:57,287 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2022-03-15 18:21:57,287 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-03-15 18:21:57,289 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2022-03-15 18:21:57,290 INFO L116 LiptonReduction]: Number of co-enabled transitions 620 [2022-03-15 18:21:59,469 INFO L131 LiptonReduction]: Checked pairs total: 1724 [2022-03-15 18:21:59,469 INFO L133 LiptonReduction]: Total number of compositions: 68 [2022-03-15 18:21:59,474 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 18 transitions, 41 flow [2022-03-15 18:21:59,485 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 50 states, 49 states have (on average 1.836734693877551) internal successors, (90), 49 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:21:59,487 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 49 states have (on average 1.836734693877551) internal successors, (90), 49 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:21:59,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-03-15 18:21:59,491 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:21:59,491 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-03-15 18:21:59,491 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 18:21:59,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:21:59,495 INFO L85 PathProgramCache]: Analyzing trace with hash -547908270, now seen corresponding path program 1 times [2022-03-15 18:21:59,507 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:21:59,507 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343506248] [2022-03-15 18:21:59,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:21:59,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:21:59,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:21:59,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:21:59,641 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:21:59,642 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343506248] [2022-03-15 18:21:59,642 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343506248] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:21:59,642 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:21:59,642 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 18:21:59,643 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1277089033] [2022-03-15 18:21:59,644 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:21:59,645 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:21:59,651 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2022-03-15 18:21:59,652 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:21:59,654 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:21:59,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 18:21:59,655 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:21:59,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 18:21:59,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-15 18:21:59,669 INFO L87 Difference]: Start difference. First operand has 50 states, 49 states have (on average 1.836734693877551) internal successors, (90), 49 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:21:59,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:21:59,699 INFO L93 Difference]: Finished difference Result 71 states and 117 transitions. [2022-03-15 18:21:59,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 18:21:59,701 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-03-15 18:21:59,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:21:59,707 INFO L225 Difference]: With dead ends: 71 [2022-03-15 18:21:59,707 INFO L226 Difference]: Without dead ends: 56 [2022-03-15 18:21:59,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 18:21:59,711 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 14 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 18:21:59,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 18 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 18:21:59,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-03-15 18:21:59,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 50. [2022-03-15 18:21:59,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.653061224489796) internal successors, (81), 49 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:21:59,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 81 transitions. [2022-03-15 18:21:59,741 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 81 transitions. Word has length 6 [2022-03-15 18:21:59,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:21:59,742 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 81 transitions. [2022-03-15 18:21:59,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:21:59,742 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 81 transitions. [2022-03-15 18:21:59,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-03-15 18:21:59,743 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:21:59,743 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:21:59,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 18:21:59,744 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-15 18:21:59,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:21:59,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1885752622, now seen corresponding path program 1 times [2022-03-15 18:21:59,753 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:21:59,756 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671051957] [2022-03-15 18:21:59,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:21:59,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:21:59,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 18:21:59,802 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-15 18:21:59,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 18:21:59,859 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-15 18:21:59,859 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-15 18:21:59,860 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-03-15 18:21:59,862 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-03-15 18:21:59,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 18:21:59,864 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-03-15 18:21:59,866 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 18:21:59,867 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 18:21:59,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 06:21:59 BasicIcfg [2022-03-15 18:21:59,889 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 18:21:59,892 INFO L158 Benchmark]: Toolchain (without parser) took 3471.59ms. Allocated memory was 209.7MB in the beginning and 299.9MB in the end (delta: 90.2MB). Free memory was 158.2MB in the beginning and 121.2MB in the end (delta: 37.0MB). Peak memory consumption was 127.9MB. Max. memory is 8.0GB. [2022-03-15 18:21:59,892 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 209.7MB. Free memory is still 176.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 18:21:59,893 INFO L158 Benchmark]: CACSL2BoogieTranslator took 422.99ms. Allocated memory is still 209.7MB. Free memory was 158.0MB in the beginning and 176.5MB in the end (delta: -18.6MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. [2022-03-15 18:21:59,894 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.20ms. Allocated memory is still 209.7MB. Free memory was 176.5MB in the beginning and 174.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 18:21:59,895 INFO L158 Benchmark]: Boogie Preprocessor took 13.53ms. Allocated memory is still 209.7MB. Free memory was 174.8MB in the beginning and 173.4MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 18:21:59,895 INFO L158 Benchmark]: RCFGBuilder took 278.72ms. Allocated memory is still 209.7MB. Free memory was 173.4MB in the beginning and 161.3MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-03-15 18:21:59,895 INFO L158 Benchmark]: TraceAbstraction took 2715.24ms. Allocated memory was 209.7MB in the beginning and 299.9MB in the end (delta: 90.2MB). Free memory was 160.8MB in the beginning and 121.2MB in the end (delta: 39.6MB). Peak memory consumption was 131.3MB. Max. memory is 8.0GB. [2022-03-15 18:21:59,899 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 209.7MB. Free memory is still 176.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 422.99ms. Allocated memory is still 209.7MB. Free memory was 158.0MB in the beginning and 176.5MB in the end (delta: -18.6MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 35.20ms. Allocated memory is still 209.7MB. Free memory was 176.5MB in the beginning and 174.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.53ms. Allocated memory is still 209.7MB. Free memory was 174.8MB in the beginning and 173.4MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 278.72ms. Allocated memory is still 209.7MB. Free memory was 173.4MB in the beginning and 161.3MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2715.24ms. Allocated memory was 209.7MB in the beginning and 299.9MB in the end (delta: 90.2MB). Free memory was 160.8MB in the beginning and 121.2MB in the end (delta: 39.6MB). Peak memory consumption was 131.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 80 PlacesBefore, 21 PlacesAfterwards, 78 TransitionsBefore, 18 TransitionsAfterwards, 620 CoEnabledTransitionPairs, 7 FixpointIterations, 34 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 68 TotalNumberOfCompositions, 1724 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 666, positive: 503, positive conditional: 0, positive unconditional: 503, negative: 163, negative conditional: 0, negative unconditional: 163, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 326, positive: 291, positive conditional: 0, positive unconditional: 291, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 666, positive: 212, positive conditional: 0, positive unconditional: 212, negative: 128, negative conditional: 0, negative unconditional: 128, unknown: 326, unknown conditional: 0, unknown unconditional: 326] , Statistics on independence cache: Total cache size (in pairs): 22, Positive cache size: 10, Positive conditional cache size: 0, Positive unconditional cache size: 10, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int g = 42; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L694] 0 int r = __VERIFIER_nondet_int(); [L695] 0 int t; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, B={4:0}, g=42, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, r=1] [L700] COND TRUE 0 \read(r) [L701] 0 g = 17 VAL [A={3:0}, arg={0:0}, B={4:0}, g=17, id={5:0}, r=1] [L705] 0 t = g [L706] CALL 0 __VERIFIER_assert(!(t == 17)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, B={4:0}, cond=0, g=17] - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 89 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 8 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2022-03-15 18:21:59,925 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...