/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 01:39:56,805 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 01:39:56,807 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 01:39:56,853 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 01:39:56,853 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 01:39:56,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 01:39:56,857 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 01:39:56,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 01:39:56,863 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 01:39:56,866 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 01:39:56,867 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 01:39:56,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 01:39:56,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 01:39:56,870 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 01:39:56,871 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 01:39:56,873 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 01:39:56,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 01:39:56,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 01:39:56,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 01:39:56,880 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 01:39:56,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 01:39:56,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 01:39:56,882 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 01:39:56,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 01:39:56,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-06 01:39:56,894 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 01:39:56,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 01:39:56,895 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 01:39:56,896 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2022-12-06 01:39:56,931 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 01:39:56,932 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 01:39:56,933 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 01:39:56,933 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 01:39:56,933 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 01:39:56,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 01:39:56,934 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 01:39:56,934 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 01:39:56,934 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 01:39:56,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 01:39:56,935 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 01:39:56,935 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 01:39:56,935 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 01:39:56,935 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 01:39:56,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 01:39:56,936 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 01:39:56,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 01:39:56,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 01:39:56,936 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 01:39:56,936 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 01:39:56,936 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 01:39:56,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 01:39:56,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 01:39:56,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 01:39:56,937 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 01:39:56,937 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 01:39:56,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 01:39:56,937 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 01:39:56,937 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 01:39:57,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 01:39:57,254 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 01:39:57,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 01:39:57,256 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 01:39:57,257 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 01:39:57,258 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2022-12-06 01:39:58,278 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 01:39:58,491 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 01:39:58,491 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2022-12-06 01:39:58,498 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eaa3708d3/9124fadac4b943d0a823484759d98da2/FLAG31bf8eac1 [2022-12-06 01:39:58,523 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eaa3708d3/9124fadac4b943d0a823484759d98da2 [2022-12-06 01:39:58,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 01:39:58,526 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 01:39:58,526 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 01:39:58,526 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 01:39:58,529 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 01:39:58,530 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:39:58" (1/1) ... [2022-12-06 01:39:58,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@788d2cee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:39:58, skipping insertion in model container [2022-12-06 01:39:58,531 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:39:58" (1/1) ... [2022-12-06 01:39:58,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 01:39:58,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 01:39:58,705 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i[1103,1116] [2022-12-06 01:39:58,843 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 01:39:58,855 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 01:39:58,866 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i[1103,1116] [2022-12-06 01:39:58,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 01:39:58,929 INFO L208 MainTranslator]: Completed translation [2022-12-06 01:39:58,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:39:58 WrapperNode [2022-12-06 01:39:58,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 01:39:58,931 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 01:39:58,931 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 01:39:58,932 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 01:39:58,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:39:58" (1/1) ... [2022-12-06 01:39:58,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:39:58" (1/1) ... [2022-12-06 01:39:58,977 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2022-12-06 01:39:58,977 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 01:39:58,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 01:39:58,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 01:39:58,978 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 01:39:58,985 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:39:58" (1/1) ... [2022-12-06 01:39:58,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:39:58" (1/1) ... [2022-12-06 01:39:58,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:39:58" (1/1) ... [2022-12-06 01:39:58,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:39:58" (1/1) ... [2022-12-06 01:39:59,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:39:58" (1/1) ... [2022-12-06 01:39:59,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:39:58" (1/1) ... [2022-12-06 01:39:59,006 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:39:58" (1/1) ... [2022-12-06 01:39:59,007 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:39:58" (1/1) ... [2022-12-06 01:39:59,008 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 01:39:59,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 01:39:59,009 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 01:39:59,009 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 01:39:59,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:39:58" (1/1) ... [2022-12-06 01:39:59,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 01:39:59,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 01:39:59,067 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) [2022-12-06 01:39:59,112 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 [2022-12-06 01:39:59,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 01:39:59,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 01:39:59,127 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 01:39:59,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 01:39:59,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 01:39:59,127 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-06 01:39:59,127 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-06 01:39:59,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 01:39:59,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 01:39:59,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 01:39:59,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 01:39:59,128 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 01:39:59,283 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 01:39:59,287 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 01:39:59,406 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 01:39:59,410 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 01:39:59,410 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 01:39:59,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:39:59 BoogieIcfgContainer [2022-12-06 01:39:59,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 01:39:59,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 01:39:59,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 01:39:59,415 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 01:39:59,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 01:39:58" (1/3) ... [2022-12-06 01:39:59,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72626645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 01:39:59, skipping insertion in model container [2022-12-06 01:39:59,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:39:58" (2/3) ... [2022-12-06 01:39:59,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72626645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 01:39:59, skipping insertion in model container [2022-12-06 01:39:59,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:39:59" (3/3) ... [2022-12-06 01:39:59,417 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_pos.i [2022-12-06 01:39:59,428 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 01:39:59,428 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 01:39:59,428 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 01:39:59,458 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-06 01:39:59,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 65 transitions, 138 flow [2022-12-06 01:39:59,503 INFO L130 PetriNetUnfolder]: 1/64 cut-off events. [2022-12-06 01:39:59,503 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 01:39:59,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 64 events. 1/64 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2022-12-06 01:39:59,506 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 65 transitions, 138 flow [2022-12-06 01:39:59,508 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 52 transitions, 107 flow [2022-12-06 01:39:59,509 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:39:59,520 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 52 transitions, 107 flow [2022-12-06 01:39:59,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 52 transitions, 107 flow [2022-12-06 01:39:59,533 INFO L130 PetriNetUnfolder]: 0/52 cut-off events. [2022-12-06 01:39:59,533 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 01:39:59,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 52 events. 0/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 17 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-06 01:39:59,535 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 52 transitions, 107 flow [2022-12-06 01:39:59,535 INFO L188 LiptonReduction]: Number of co-enabled transitions 252 [2022-12-06 01:40:01,842 INFO L203 LiptonReduction]: Total number of compositions: 45 [2022-12-06 01:40:01,859 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 01:40:01,864 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, 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=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@c646a17, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 01:40:01,864 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-06 01:40:01,868 INFO L130 PetriNetUnfolder]: 0/7 cut-off events. [2022-12-06 01:40:01,868 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 01:40:01,868 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:40:01,869 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-06 01:40:01,869 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 01:40:01,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:40:01,874 INFO L85 PathProgramCache]: Analyzing trace with hash 6882470, now seen corresponding path program 1 times [2022-12-06 01:40:01,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:40:01,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110302235] [2022-12-06 01:40:01,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:40:01,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:40:01,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:40:02,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:40:02,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:40:02,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110302235] [2022-12-06 01:40:02,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110302235] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:40:02,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:40:02,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 01:40:02,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557880030] [2022-12-06 01:40:02,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:40:02,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 01:40:02,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:40:02,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 01:40:02,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 01:40:02,166 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 10 [2022-12-06 01:40:02,167 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 10 transitions, 23 flow. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-12-06 01:40:02,167 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:40:02,167 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 10 [2022-12-06 01:40:02,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:40:02,193 INFO L130 PetriNetUnfolder]: 4/21 cut-off events. [2022-12-06 01:40:02,194 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 01:40:02,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 21 events. 4/21 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 38 event pairs, 3 based on Foata normal form. 4/23 useless extension candidates. Maximal degree in co-relation 35. Up to 14 conditions per place. [2022-12-06 01:40:02,195 INFO L137 encePairwiseOnDemand]: 6/10 looper letters, 5 selfloop transitions, 3 changer transitions 2/11 dead transitions. [2022-12-06 01:40:02,195 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 11 transitions, 43 flow [2022-12-06 01:40:02,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 01:40:02,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 01:40:02,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2022-12-06 01:40:02,202 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2022-12-06 01:40:02,205 INFO L294 CegarLoopForPetriNet]: 14 programPoint places, 2 predicate places. [2022-12-06 01:40:02,206 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:40:02,206 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 16 places, 11 transitions, 43 flow [2022-12-06 01:40:02,208 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 16 places, 11 transitions, 43 flow [2022-12-06 01:40:02,208 INFO L188 LiptonReduction]: Number of co-enabled transitions 6 [2022-12-06 01:40:02,238 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 01:40:02,240 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 35 [2022-12-06 01:40:02,242 INFO L495 AbstractCegarLoop]: Abstraction has has 16 places, 11 transitions, 43 flow [2022-12-06 01:40:02,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-12-06 01:40:02,242 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:40:02,242 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-06 01:40:02,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 01:40:02,243 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 01:40:02,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:40:02,243 INFO L85 PathProgramCache]: Analyzing trace with hash 213356265, now seen corresponding path program 1 times [2022-12-06 01:40:02,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:40:02,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093577974] [2022-12-06 01:40:02,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:40:02,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:40:02,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 01:40:02,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 01:40:02,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 01:40:02,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093577974] [2022-12-06 01:40:02,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093577974] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 01:40:02,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 01:40:02,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 01:40:02,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771652693] [2022-12-06 01:40:02,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 01:40:02,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 01:40:02,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 01:40:02,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 01:40:02,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 01:40:02,386 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 11 [2022-12-06 01:40:02,386 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 11 transitions, 43 flow. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-12-06 01:40:02,386 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 01:40:02,386 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 11 [2022-12-06 01:40:02,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 01:40:02,406 INFO L130 PetriNetUnfolder]: 2/15 cut-off events. [2022-12-06 01:40:02,406 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 01:40:02,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 15 events. 2/15 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 24 event pairs, 0 based on Foata normal form. 1/15 useless extension candidates. Maximal degree in co-relation 36. Up to 11 conditions per place. [2022-12-06 01:40:02,406 INFO L137 encePairwiseOnDemand]: 5/11 looper letters, 1 selfloop transitions, 4 changer transitions 7/12 dead transitions. [2022-12-06 01:40:02,406 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 12 transitions, 69 flow [2022-12-06 01:40:02,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 01:40:02,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 01:40:02,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2022-12-06 01:40:02,408 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.38636363636363635 [2022-12-06 01:40:02,408 INFO L294 CegarLoopForPetriNet]: 14 programPoint places, 5 predicate places. [2022-12-06 01:40:02,408 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 01:40:02,408 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 19 places, 12 transitions, 69 flow [2022-12-06 01:40:02,409 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 19 places, 12 transitions, 69 flow [2022-12-06 01:40:02,409 INFO L188 LiptonReduction]: Number of co-enabled transitions 2 [2022-12-06 01:40:02,573 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-06 01:40:02,575 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 167 [2022-12-06 01:40:02,575 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 11 transitions, 65 flow [2022-12-06 01:40:02,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-12-06 01:40:02,575 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 01:40:02,575 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-06 01:40:02,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 01:40:02,575 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 01:40:02,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 01:40:02,576 INFO L85 PathProgramCache]: Analyzing trace with hash 6883251, now seen corresponding path program 1 times [2022-12-06 01:40:02,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 01:40:02,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844010152] [2022-12-06 01:40:02,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 01:40:02,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 01:40:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 01:40:02,599 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-06 01:40:02,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 01:40:02,626 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-06 01:40:02,626 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-06 01:40:02,627 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-06 01:40:02,635 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-06 01:40:02,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 01:40:02,636 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-06 01:40:02,642 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 01:40:02,642 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 01:40:02,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 01:40:02 BasicIcfg [2022-12-06 01:40:02,660 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 01:40:02,660 INFO L158 Benchmark]: Toolchain (without parser) took 4134.82ms. Allocated memory was 195.0MB in the beginning and 249.6MB in the end (delta: 54.5MB). Free memory was 170.4MB in the beginning and 105.2MB in the end (delta: 65.2MB). Peak memory consumption was 120.2MB. Max. memory is 8.0GB. [2022-12-06 01:40:02,661 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 195.0MB. Free memory was 171.3MB in the beginning and 171.3MB in the end (delta: 85.2kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 01:40:02,663 INFO L158 Benchmark]: CACSL2BoogieTranslator took 403.60ms. Allocated memory is still 195.0MB. Free memory was 170.4MB in the beginning and 151.4MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-06 01:40:02,664 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.77ms. Allocated memory is still 195.0MB. Free memory was 151.4MB in the beginning and 149.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 01:40:02,664 INFO L158 Benchmark]: Boogie Preprocessor took 30.43ms. Allocated memory is still 195.0MB. Free memory was 149.4MB in the beginning and 147.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 01:40:02,664 INFO L158 Benchmark]: RCFGBuilder took 402.87ms. Allocated memory is still 195.0MB. Free memory was 147.9MB in the beginning and 135.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-06 01:40:02,664 INFO L158 Benchmark]: TraceAbstraction took 3246.93ms. Allocated memory was 195.0MB in the beginning and 249.6MB in the end (delta: 54.5MB). Free memory was 134.2MB in the beginning and 105.2MB in the end (delta: 29.0MB). Peak memory consumption was 84.6MB. Max. memory is 8.0GB. [2022-12-06 01:40:02,665 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 195.0MB. Free memory was 171.3MB in the beginning and 171.3MB in the end (delta: 85.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 403.60ms. Allocated memory is still 195.0MB. Free memory was 170.4MB in the beginning and 151.4MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.77ms. Allocated memory is still 195.0MB. Free memory was 151.4MB in the beginning and 149.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.43ms. Allocated memory is still 195.0MB. Free memory was 149.4MB in the beginning and 147.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 402.87ms. Allocated memory is still 195.0MB. Free memory was 147.9MB in the beginning and 135.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3246.93ms. Allocated memory was 195.0MB in the beginning and 249.6MB in the end (delta: 54.5MB). Free memory was 134.2MB in the beginning and 105.2MB in the end (delta: 29.0MB). Peak memory consumption was 84.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 56 PlacesBefore, 14 PlacesAfterwards, 52 TransitionsBefore, 10 TransitionsAfterwards, 252 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 27 TrivialYvCompositions, 18 ConcurrentYvCompositions, 0 ChoiceCompositions, 45 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 213, independent: 182, independent conditional: 182, independent unconditional: 0, dependent: 31, dependent conditional: 31, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 213, independent: 182, independent conditional: 0, independent unconditional: 182, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 213, independent: 182, independent conditional: 0, independent unconditional: 182, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 213, independent: 182, independent conditional: 0, independent unconditional: 182, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 178, independent: 157, independent conditional: 0, independent unconditional: 157, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 178, independent: 148, independent conditional: 0, independent unconditional: 148, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 30, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 83, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 213, independent: 25, independent conditional: 0, independent unconditional: 25, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 178, unknown conditional: 0, unknown unconditional: 178] , Statistics on independence cache: Total cache size (in pairs): 275, Positive cache size: 254, Positive conditional cache size: 0, Positive unconditional cache size: 254, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 16 PlacesBefore, 16 PlacesAfterwards, 11 TransitionsBefore, 11 TransitionsAfterwards, 6 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.2s, 19 PlacesBefore, 18 PlacesAfterwards, 12 TransitionsBefore, 11 TransitionsAfterwards, 2 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L687] 1 glob1 = 5 [L699] CALL 0 __VERIFIER_assert(glob1 == 0) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, arg={0:0}, cond=0, glob1=5, mutex1={3:0}, mutex2={4:0}] - 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, 81 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28 IncrementalHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 0 mSDtfsCounter, 28 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=2, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 30 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! [2022-12-06 01:40:02,685 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...