/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 01:14:24,286 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 01:14:24,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 01:14:24,316 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-12-13 01:14:24,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 01:14:24,331 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 01:14:24,332 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 01:14:24,332 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 01:14:24,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 01:14:24,333 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 01:14:24,334 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 01:14:24,335 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 01:14:24,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 01:14:24,338 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 01:14:24,339 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 01:14:24,340 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 01:14:24,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-13 01:14:24,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 01:14:24,346 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 01:14:24,352 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 01:14:24,353 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 [2022-12-13 01:14:24,378 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 01:14:24,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 01:14:24,380 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 01:14:24,380 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 01:14:24,380 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 01:14:24,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 01:14:24,381 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 01:14:24,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 01:14:24,381 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 01:14:24,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 01:14:24,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 01:14:24,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 01:14:24,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 01:14:24,383 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 01:14:24,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 01:14:24,383 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 01:14:24,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 01:14:24,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 01:14:24,383 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 01:14:24,383 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 01:14:24,383 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 01:14:24,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 01:14:24,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 01:14:24,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 01:14:24,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 01:14:24,384 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 01:14:24,384 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 01:14:24,384 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 01:14:24,384 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-13 01:14:24,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 01:14:24,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 01:14:24,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 01:14:24,673 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 01:14:24,674 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 01:14:24,674 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2022-12-13 01:14:25,680 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 01:14:25,882 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 01:14:25,882 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2022-12-13 01:14:25,890 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a30798baa/c9f13db9ef7049ceab36947cacdce19e/FLAG38e50dcd0 [2022-12-13 01:14:25,905 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a30798baa/c9f13db9ef7049ceab36947cacdce19e [2022-12-13 01:14:25,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 01:14:25,908 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 01:14:25,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 01:14:25,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 01:14:25,912 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 01:14:25,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:14:25" (1/1) ... [2022-12-13 01:14:25,913 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7799e5a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:14:25, skipping insertion in model container [2022-12-13 01:14:25,913 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:14:25" (1/1) ... [2022-12-13 01:14:25,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 01:14:25,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 01:14:26,066 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_18-first-reads_unknown_2_pos.i[1097,1110] [2022-12-13 01:14:26,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 01:14:26,208 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 01:14:26,218 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_18-first-reads_unknown_2_pos.i[1097,1110] [2022-12-13 01:14:26,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 01:14:26,277 INFO L208 MainTranslator]: Completed translation [2022-12-13 01:14:26,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:14:26 WrapperNode [2022-12-13 01:14:26,277 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 01:14:26,278 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 01:14:26,278 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 01:14:26,278 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 01:14:26,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:14:26" (1/1) ... [2022-12-13 01:14:26,307 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:14:26" (1/1) ... [2022-12-13 01:14:26,324 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-12-13 01:14:26,324 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 01:14:26,325 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 01:14:26,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 01:14:26,325 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 01:14:26,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:14:26" (1/1) ... [2022-12-13 01:14:26,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:14:26" (1/1) ... [2022-12-13 01:14:26,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:14:26" (1/1) ... [2022-12-13 01:14:26,335 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:14:26" (1/1) ... [2022-12-13 01:14:26,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:14:26" (1/1) ... [2022-12-13 01:14:26,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:14:26" (1/1) ... [2022-12-13 01:14:26,350 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:14:26" (1/1) ... [2022-12-13 01:14:26,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:14:26" (1/1) ... [2022-12-13 01:14:26,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 01:14:26,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 01:14:26,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 01:14:26,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 01:14:26,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:14:26" (1/1) ... [2022-12-13 01:14:26,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 01:14:26,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 01:14:26,390 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) [2022-12-13 01:14:26,406 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 [2022-12-13 01:14:26,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 01:14:26,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 01:14:26,424 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 01:14:26,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 01:14:26,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 01:14:26,425 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 01:14:26,425 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 01:14:26,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 01:14:26,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 01:14:26,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 01:14:26,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 01:14:26,426 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 01:14:26,559 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 01:14:26,561 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 01:14:26,667 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 01:14:26,671 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 01:14:26,671 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 01:14:26,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:14:26 BoogieIcfgContainer [2022-12-13 01:14:26,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 01:14:26,674 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 01:14:26,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 01:14:26,676 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 01:14:26,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:14:25" (1/3) ... [2022-12-13 01:14:26,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49c98713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:14:26, skipping insertion in model container [2022-12-13 01:14:26,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:14:26" (2/3) ... [2022-12-13 01:14:26,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49c98713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:14:26, skipping insertion in model container [2022-12-13 01:14:26,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:14:26" (3/3) ... [2022-12-13 01:14:26,677 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_pos.i [2022-12-13 01:14:26,688 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 01:14:26,688 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 01:14:26,688 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 01:14:26,732 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 01:14:26,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 58 transitions, 124 flow [2022-12-13 01:14:26,804 INFO L130 PetriNetUnfolder]: 2/57 cut-off events. [2022-12-13 01:14:26,805 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 01:14:26,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 57 events. 2/57 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2022-12-13 01:14:26,808 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 58 transitions, 124 flow [2022-12-13 01:14:26,810 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 43 transitions, 89 flow [2022-12-13 01:14:26,811 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 01:14:26,828 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 43 transitions, 89 flow [2022-12-13 01:14:26,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 43 transitions, 89 flow [2022-12-13 01:14:26,839 INFO L130 PetriNetUnfolder]: 1/43 cut-off events. [2022-12-13 01:14:26,839 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 01:14:26,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 43 events. 1/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 15 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2022-12-13 01:14:26,841 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 43 transitions, 89 flow [2022-12-13 01:14:26,841 INFO L226 LiptonReduction]: Number of co-enabled transitions 180 [2022-12-13 01:14:28,360 INFO L241 LiptonReduction]: Total number of compositions: 39 [2022-12-13 01:14:28,370 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 01:14:28,374 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;@64fc0113, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 01:14:28,374 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-13 01:14:28,376 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2022-12-13 01:14:28,377 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 01:14:28,377 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 01:14:28,377 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 01:14:28,377 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 01:14:28,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 01:14:28,381 INFO L85 PathProgramCache]: Analyzing trace with hash 221970, now seen corresponding path program 1 times [2022-12-13 01:14:28,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 01:14:28,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849252241] [2022-12-13 01:14:28,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 01:14:28,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 01:14:28,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 01:14:28,458 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 01:14:28,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 01:14:28,482 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 01:14:28,483 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 01:14:28,483 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-13 01:14:28,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-13 01:14:28,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-12-13 01:14:28,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 01:14:28,485 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 01:14:28,489 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 01:14:28,489 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 01:14:28,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:14:28 BasicIcfg [2022-12-13 01:14:28,499 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 01:14:28,500 INFO L158 Benchmark]: Toolchain (without parser) took 2591.92ms. Allocated memory is still 174.1MB. Free memory was 148.0MB in the beginning and 95.6MB in the end (delta: 52.4MB). Peak memory consumption was 51.7MB. Max. memory is 8.0GB. [2022-12-13 01:14:28,500 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 127.9MB. Free memory was 105.5MB in the beginning and 105.4MB in the end (delta: 74.7kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 01:14:28,501 INFO L158 Benchmark]: CACSL2BoogieTranslator took 367.63ms. Allocated memory is still 174.1MB. Free memory was 147.7MB in the beginning and 129.1MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-13 01:14:28,501 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.52ms. Allocated memory is still 174.1MB. Free memory was 129.1MB in the beginning and 127.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 01:14:28,501 INFO L158 Benchmark]: Boogie Preprocessor took 26.86ms. Allocated memory is still 174.1MB. Free memory was 127.1MB in the beginning and 125.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-13 01:14:28,502 INFO L158 Benchmark]: RCFGBuilder took 319.94ms. Allocated memory is still 174.1MB. Free memory was 125.7MB in the beginning and 144.5MB in the end (delta: -18.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-12-13 01:14:28,502 INFO L158 Benchmark]: TraceAbstraction took 1825.50ms. Allocated memory is still 174.1MB. Free memory was 143.5MB in the beginning and 95.6MB in the end (delta: 47.8MB). Peak memory consumption was 47.8MB. Max. memory is 8.0GB. [2022-12-13 01:14:28,503 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 127.9MB. Free memory was 105.5MB in the beginning and 105.4MB in the end (delta: 74.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 367.63ms. Allocated memory is still 174.1MB. Free memory was 147.7MB in the beginning and 129.1MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.52ms. Allocated memory is still 174.1MB. Free memory was 129.1MB in the beginning and 127.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.86ms. Allocated memory is still 174.1MB. Free memory was 127.1MB in the beginning and 125.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 319.94ms. Allocated memory is still 174.1MB. Free memory was 125.7MB in the beginning and 144.5MB in the end (delta: -18.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 1825.50ms. Allocated memory is still 174.1MB. Free memory was 143.5MB in the beginning and 95.6MB in the end (delta: 47.8MB). Peak memory consumption was 47.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.5s, 46 PlacesBefore, 13 PlacesAfterwards, 43 TransitionsBefore, 9 TransitionsAfterwards, 180 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 20 TrivialYvCompositions, 18 ConcurrentYvCompositions, 1 ChoiceCompositions, 39 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 198, independent: 197, independent conditional: 197, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 198, independent: 197, independent conditional: 0, independent unconditional: 197, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 198, independent: 197, independent conditional: 0, independent unconditional: 197, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 198, independent: 197, independent conditional: 0, independent unconditional: 197, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 141, independent: 140, independent conditional: 0, independent unconditional: 140, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 141, independent: 127, independent conditional: 0, independent unconditional: 127, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 14, independent: 13, independent conditional: 0, independent unconditional: 13, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 28, independent: 25, independent conditional: 0, independent unconditional: 25, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 198, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 141, unknown conditional: 0, unknown unconditional: 141] , Statistics on independence cache: Total cache size (in pairs): 314, Positive cache size: 313, Positive conditional cache size: 0, Positive unconditional cache size: 313, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, 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: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND FALSE 1 !(t == 42) [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(t == 1) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=0, mutex1={3:0}] - UnprovableResult [Line: 698]: 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, 79 locations, 3 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: 1.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2022-12-13 01:14:28,517 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...