/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 04:53:17,591 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 04:53:17,660 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-27 04:53:17,664 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 04:53:17,664 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 04:53:17,687 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 04:53:17,687 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 04:53:17,688 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 04:53:17,688 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 04:53:17,691 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 04:53:17,691 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 04:53:17,691 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 04:53:17,691 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 04:53:17,692 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 04:53:17,692 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 04:53:17,692 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 04:53:17,693 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 04:53:17,693 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 04:53:17,693 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 04:53:17,693 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 04:53:17,693 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 04:53:17,693 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 04:53:17,693 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 04:53:17,694 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 04:53:17,694 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 04:53:17,694 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 04:53:17,694 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 04:53:17,694 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 04:53:17,695 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 04:53:17,695 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 04:53:17,695 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 04:53:17,696 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 04:53:17,696 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 04:53:17,696 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 04:53:17,696 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 04:53:17,696 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 04:53:17,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 04:53:17,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 04:53:17,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 04:53:17,970 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 04:53:17,971 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 04:53:17,972 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2023-08-27 04:53:18,902 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 04:53:19,088 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 04:53:19,088 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2023-08-27 04:53:19,103 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/190bd90f0/531faadb787f43ff91ba2984d26dca54/FLAGd6b61f582 [2023-08-27 04:53:19,115 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/190bd90f0/531faadb787f43ff91ba2984d26dca54 [2023-08-27 04:53:19,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 04:53:19,117 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 04:53:19,118 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 04:53:19,118 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 04:53:19,120 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 04:53:19,120 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:53:19" (1/1) ... [2023-08-27 04:53:19,121 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d75d854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:53:19, skipping insertion in model container [2023-08-27 04:53:19,121 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:53:19" (1/1) ... [2023-08-27 04:53:19,160 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 04:53:19,506 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 04:53:19,515 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 04:53:19,525 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [231] [2023-08-27 04:53:19,526 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-27 04:53:19,531 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [730] [2023-08-27 04:53:19,541 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 04:53:19,588 WARN L669 CHandler]: The function sleep is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 04:53:19,593 INFO L206 MainTranslator]: Completed translation [2023-08-27 04:53:19,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:53:19 WrapperNode [2023-08-27 04:53:19,593 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 04:53:19,594 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 04:53:19,594 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 04:53:19,594 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 04:53:19,598 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:53:19" (1/1) ... [2023-08-27 04:53:19,612 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:53:19" (1/1) ... [2023-08-27 04:53:19,631 INFO L138 Inliner]: procedures = 354, calls = 39, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 77 [2023-08-27 04:53:19,632 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 04:53:19,632 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 04:53:19,632 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 04:53:19,632 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 04:53:19,641 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:53:19" (1/1) ... [2023-08-27 04:53:19,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:53:19" (1/1) ... [2023-08-27 04:53:19,646 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:53:19" (1/1) ... [2023-08-27 04:53:19,646 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:53:19" (1/1) ... [2023-08-27 04:53:19,653 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:53:19" (1/1) ... [2023-08-27 04:53:19,654 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:53:19" (1/1) ... [2023-08-27 04:53:19,656 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:53:19" (1/1) ... [2023-08-27 04:53:19,657 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:53:19" (1/1) ... [2023-08-27 04:53:19,661 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 04:53:19,662 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 04:53:19,662 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 04:53:19,662 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 04:53:19,662 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:53:19" (1/1) ... [2023-08-27 04:53:19,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 04:53:19,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 04:53:19,698 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) [2023-08-27 04:53:19,725 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 [2023-08-27 04:53:19,734 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2023-08-27 04:53:19,734 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2023-08-27 04:53:19,735 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2023-08-27 04:53:19,735 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2023-08-27 04:53:19,735 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2023-08-27 04:53:19,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 04:53:19,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 04:53:19,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 04:53:19,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 04:53:19,735 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-27 04:53:19,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 04:53:19,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 04:53:19,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 04:53:19,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 04:53:19,736 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 04:53:19,952 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 04:53:19,954 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 04:53:20,046 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 04:53:20,050 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 04:53:20,050 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 04:53:20,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:53:20 BoogieIcfgContainer [2023-08-27 04:53:20,052 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 04:53:20,053 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 04:53:20,053 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 04:53:20,055 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 04:53:20,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 04:53:19" (1/3) ... [2023-08-27 04:53:20,055 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@605257c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 04:53:20, skipping insertion in model container [2023-08-27 04:53:20,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:53:19" (2/3) ... [2023-08-27 04:53:20,055 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@605257c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 04:53:20, skipping insertion in model container [2023-08-27 04:53:20,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:53:20" (3/3) ... [2023-08-27 04:53:20,056 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2023-08-27 04:53:20,066 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 04:53:20,066 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-27 04:53:20,066 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 04:53:20,096 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-27 04:53:20,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 92 transitions, 200 flow [2023-08-27 04:53:20,143 INFO L124 PetriNetUnfolderBase]: 2/90 cut-off events. [2023-08-27 04:53:20,143 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 04:53:20,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 90 events. 2/90 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2023-08-27 04:53:20,146 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 92 transitions, 200 flow [2023-08-27 04:53:20,149 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 72 transitions, 153 flow [2023-08-27 04:53:20,151 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 04:53:20,156 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 72 transitions, 153 flow [2023-08-27 04:53:20,158 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 72 transitions, 153 flow [2023-08-27 04:53:20,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 72 transitions, 153 flow [2023-08-27 04:53:20,170 INFO L124 PetriNetUnfolderBase]: 0/72 cut-off events. [2023-08-27 04:53:20,170 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 04:53:20,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 72 events. 0/72 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-08-27 04:53:20,171 INFO L119 LiptonReduction]: Number of co-enabled transitions 624 [2023-08-27 04:53:22,656 INFO L134 LiptonReduction]: Checked pairs total: 1057 [2023-08-27 04:53:22,656 INFO L136 LiptonReduction]: Total number of compositions: 57 [2023-08-27 04:53:22,666 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 04:53:22,671 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=PETRI_NET, 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;@228d0ee, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 04:53:22,672 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-27 04:53:22,676 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 04:53:22,676 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2023-08-27 04:53:22,676 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 04:53:22,677 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:53:22,677 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-27 04:53:22,678 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-27 04:53:22,683 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:53:22,683 INFO L85 PathProgramCache]: Analyzing trace with hash 642610242, now seen corresponding path program 1 times [2023-08-27 04:53:22,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:53:22,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226942728] [2023-08-27 04:53:22,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:53:22,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:53:22,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 04:53:23,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 04:53:23,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 04:53:23,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226942728] [2023-08-27 04:53:23,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226942728] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 04:53:23,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 04:53:23,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 04:53:23,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395372808] [2023-08-27 04:53:23,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 04:53:23,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 04:53:23,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 04:53:23,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 04:53:23,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 04:53:23,074 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 149 [2023-08-27 04:53:23,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 15 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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) [2023-08-27 04:53:23,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 04:53:23,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 149 [2023-08-27 04:53:23,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 04:53:23,139 INFO L124 PetriNetUnfolderBase]: 39/96 cut-off events. [2023-08-27 04:53:23,141 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-27 04:53:23,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 96 events. 39/96 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 268 event pairs, 25 based on Foata normal form. 10/106 useless extension candidates. Maximal degree in co-relation 178. Up to 58 conditions per place. [2023-08-27 04:53:23,142 INFO L140 encePairwiseOnDemand]: 145/149 looper letters, 15 selfloop transitions, 3 changer transitions 0/19 dead transitions. [2023-08-27 04:53:23,142 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 19 transitions, 86 flow [2023-08-27 04:53:23,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 04:53:23,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 04:53:23,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2023-08-27 04:53:23,150 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5794183445190156 [2023-08-27 04:53:23,151 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 259 transitions. [2023-08-27 04:53:23,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 259 transitions. [2023-08-27 04:53:23,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 04:53:23,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 259 transitions. [2023-08-27 04:53:23,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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) [2023-08-27 04:53:23,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 149.0) internal successors, (596), 4 states have internal predecessors, (596), 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) [2023-08-27 04:53:23,160 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 149.0) internal successors, (596), 4 states have internal predecessors, (596), 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) [2023-08-27 04:53:23,162 INFO L175 Difference]: Start difference. First operand has 22 places, 15 transitions, 39 flow. Second operand 3 states and 259 transitions. [2023-08-27 04:53:23,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 19 transitions, 86 flow [2023-08-27 04:53:23,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 19 transitions, 80 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-27 04:53:23,168 INFO L231 Difference]: Finished difference. Result has 22 places, 15 transitions, 45 flow [2023-08-27 04:53:23,169 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=45, PETRI_PLACES=22, PETRI_TRANSITIONS=15} [2023-08-27 04:53:23,173 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 0 predicate places. [2023-08-27 04:53:23,173 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 15 transitions, 45 flow [2023-08-27 04:53:23,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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) [2023-08-27 04:53:23,173 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:53:23,173 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 04:53:23,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 04:53:23,174 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting f2Err0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-27 04:53:23,175 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:53:23,175 INFO L85 PathProgramCache]: Analyzing trace with hash -902039974, now seen corresponding path program 1 times [2023-08-27 04:53:23,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:53:23,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062916318] [2023-08-27 04:53:23,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:53:23,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:53:23,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 04:53:23,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 04:53:23,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 04:53:23,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062916318] [2023-08-27 04:53:23,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062916318] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 04:53:23,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 04:53:23,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 04:53:23,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008050924] [2023-08-27 04:53:23,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 04:53:23,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 04:53:23,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 04:53:23,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 04:53:23,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 04:53:23,321 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 149 [2023-08-27 04:53:23,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 15 transitions, 45 flow. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 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) [2023-08-27 04:53:23,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 04:53:23,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 149 [2023-08-27 04:53:23,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 04:53:23,362 INFO L124 PetriNetUnfolderBase]: 24/65 cut-off events. [2023-08-27 04:53:23,362 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-08-27 04:53:23,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 65 events. 24/65 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 149 event pairs, 6 based on Foata normal form. 14/79 useless extension candidates. Maximal degree in co-relation 54. Up to 44 conditions per place. [2023-08-27 04:53:23,363 INFO L140 encePairwiseOnDemand]: 144/149 looper letters, 10 selfloop transitions, 3 changer transitions 7/20 dead transitions. [2023-08-27 04:53:23,364 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 20 transitions, 98 flow [2023-08-27 04:53:23,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 04:53:23,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 04:53:23,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 242 transitions. [2023-08-27 04:53:23,369 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5413870246085011 [2023-08-27 04:53:23,369 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 242 transitions. [2023-08-27 04:53:23,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 242 transitions. [2023-08-27 04:53:23,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 04:53:23,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 242 transitions. [2023-08-27 04:53:23,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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) [2023-08-27 04:53:23,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 149.0) internal successors, (596), 4 states have internal predecessors, (596), 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) [2023-08-27 04:53:23,375 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 149.0) internal successors, (596), 4 states have internal predecessors, (596), 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) [2023-08-27 04:53:23,375 INFO L175 Difference]: Start difference. First operand has 22 places, 15 transitions, 45 flow. Second operand 3 states and 242 transitions. [2023-08-27 04:53:23,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 20 transitions, 98 flow [2023-08-27 04:53:23,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 20 transitions, 92 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 04:53:23,376 INFO L231 Difference]: Finished difference. Result has 22 places, 10 transitions, 33 flow [2023-08-27 04:53:23,377 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=33, PETRI_PLACES=22, PETRI_TRANSITIONS=10} [2023-08-27 04:53:23,377 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 0 predicate places. [2023-08-27 04:53:23,378 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 10 transitions, 33 flow [2023-08-27 04:53:23,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 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) [2023-08-27 04:53:23,380 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:53:23,381 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 04:53:23,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 04:53:23,381 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-27 04:53:23,386 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:53:23,386 INFO L85 PathProgramCache]: Analyzing trace with hash 2108820843, now seen corresponding path program 1 times [2023-08-27 04:53:23,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:53:23,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312407016] [2023-08-27 04:53:23,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:53:23,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:53:23,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 04:53:23,414 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 04:53:23,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 04:53:23,449 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 04:53:23,449 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 04:53:23,450 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2023-08-27 04:53:23,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-08-27 04:53:23,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-08-27 04:53:23,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONASSERT (0 of 4 remaining) [2023-08-27 04:53:23,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 04:53:23,452 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-27 04:53:23,456 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 04:53:23,456 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 04:53:23,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 04:53:23 BasicIcfg [2023-08-27 04:53:23,488 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 04:53:23,489 INFO L158 Benchmark]: Toolchain (without parser) took 4371.16ms. Allocated memory was 408.9MB in the beginning and 545.3MB in the end (delta: 136.3MB). Free memory was 383.4MB in the beginning and 493.3MB in the end (delta: -109.9MB). Peak memory consumption was 25.7MB. Max. memory is 16.0GB. [2023-08-27 04:53:23,489 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 408.9MB. Free memory was 385.5MB in the beginning and 385.4MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 04:53:23,491 INFO L158 Benchmark]: CACSL2BoogieTranslator took 475.59ms. Allocated memory is still 408.9MB. Free memory was 383.0MB in the beginning and 345.1MB in the end (delta: 38.0MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. [2023-08-27 04:53:23,491 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.55ms. Allocated memory is still 408.9MB. Free memory was 345.1MB in the beginning and 342.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-27 04:53:23,493 INFO L158 Benchmark]: Boogie Preprocessor took 29.06ms. Allocated memory is still 408.9MB. Free memory was 342.1MB in the beginning and 339.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 04:53:23,493 INFO L158 Benchmark]: RCFGBuilder took 390.01ms. Allocated memory is still 408.9MB. Free memory was 339.7MB in the beginning and 372.2MB in the end (delta: -32.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-27 04:53:23,493 INFO L158 Benchmark]: TraceAbstraction took 3435.43ms. Allocated memory was 408.9MB in the beginning and 545.3MB in the end (delta: 136.3MB). Free memory was 371.4MB in the beginning and 493.3MB in the end (delta: -121.9MB). Peak memory consumption was 13.1MB. Max. memory is 16.0GB. [2023-08-27 04:53:23,497 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 408.9MB. Free memory was 385.5MB in the beginning and 385.4MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 475.59ms. Allocated memory is still 408.9MB. Free memory was 383.0MB in the beginning and 345.1MB in the end (delta: 38.0MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 37.55ms. Allocated memory is still 408.9MB. Free memory was 345.1MB in the beginning and 342.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 29.06ms. Allocated memory is still 408.9MB. Free memory was 342.1MB in the beginning and 339.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 390.01ms. Allocated memory is still 408.9MB. Free memory was 339.7MB in the beginning and 372.2MB in the end (delta: -32.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * TraceAbstraction took 3435.43ms. Allocated memory was 408.9MB in the beginning and 545.3MB in the end (delta: 136.3MB). Free memory was 371.4MB in the beginning and 493.3MB in the end (delta: -121.9MB). Peak memory consumption was 13.1MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 231]: Unsoundness Warning unspecified type, defaulting to int C: short [231] - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] - GenericResultAtLocation [Line: 730]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [730] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.5s, 79 PlacesBefore, 22 PlacesAfterwards, 72 TransitionsBefore, 15 TransitionsAfterwards, 624 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 57 TotalNumberOfCompositions, 1057 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 697, independent: 617, independent conditional: 0, independent unconditional: 617, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 343, independent: 324, independent conditional: 0, independent unconditional: 324, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 697, independent: 293, independent conditional: 0, independent unconditional: 293, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 343, unknown conditional: 0, unknown unconditional: 343] , Statistics on independence cache: Total cache size (in pairs): 34, Positive cache size: 28, Positive conditional cache size: 0, Positive unconditional cache size: 28, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 18]: assertion can be violated assertion can be violated We found a FailurePath: [L1351] 0 int g; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1353] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; [L1373] 0 pthread_t t1; [L1374] 0 pthread_t t2; [L1375] FCALL, FORK 0 pthread_create(&t1,((void *)0),f1,((void *)0)) VAL [\old(argc)=1152, argc=1152, argv={1150:1151}, argv={1150:1151}, cond={4:0}, g=0, mut={3:0}, pthread_create(&t1,((void *)0),f1,((void *)0))=-2, ptr={0:0}, t1={6:0}, t2={5:0}] [L1356] 1 g = 1 VAL [cond={4:0}, g=1, mut={3:0}, ptr={0:0}, ptr={0:0}] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [\old(argc)=1152, argc=1152, argv={1150:1151}, argv={1150:1151}, cond={4:0}, g=1, mut={3:0}, pthread_create(&t2,((void *)0),f2,((void *)0))=-1, ptr={0:0}, ptr={0:0}, t1={6:0}, t2={5:0}] [L1365] CALL 2 __VERIFIER_assert(g == 0) [L19] COND TRUE 2 !(cond) [L19] CALL 2 reach_error() [L18] COND FALSE 2 !(0) [L18] 2 __assert_fail ("0", "13-privatized_67-pthread_cond_wait_unknown_1_pos.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [cond={4:0}, g=1, mut={3:0}, ptr={0:0}, ptr={0:0}] - UnprovableResult [Line: 1375]: 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. - UnprovableResult [Line: 1377]: 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 5 procedures, 124 locations, 4 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: 3.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50 IncrementalHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 0 mSDtfsCounter, 50 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=1, InterpolantAutomatonStates: 6, 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, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 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! [2023-08-27 04:53:23,509 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...