/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-23 23:52:57,546 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-23 23:52:57,633 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 [2023-08-23 23:52:57,637 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-23 23:52:57,638 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-23 23:52:57,670 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-23 23:52:57,671 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-23 23:52:57,673 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-23 23:52:57,674 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-23 23:52:57,674 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-23 23:52:57,674 INFO L153 SettingsManager]: * Use SBE=true [2023-08-23 23:52:57,675 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-23 23:52:57,675 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-23 23:52:57,675 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-23 23:52:57,675 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-23 23:52:57,676 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-23 23:52:57,676 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-23 23:52:57,676 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-23 23:52:57,681 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-23 23:52:57,681 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-23 23:52:57,681 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-23 23:52:57,682 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-23 23:52:57,682 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-23 23:52:57,682 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-23 23:52:57,682 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-23 23:52:57,683 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-23 23:52:57,683 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-23 23:52:57,683 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-23 23:52:57,683 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-23 23:52:57,684 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-23 23:52:57,684 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-23 23:52:57,684 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-23 23:52:57,684 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-23 23:52:57,684 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-23 23:52:57,685 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-23 23:52:57,685 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-08-23 23:52:57,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-23 23:52:58,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-23 23:52:58,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-23 23:52:58,012 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-23 23:52:58,013 INFO L274 PluginConnector]: CDTParser initialized [2023-08-23 23:52:58,014 INFO L431 ainManager$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_neg.i [2023-08-23 23:52:59,307 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-23 23:52:59,638 INFO L384 CDTParser]: Found 1 translation units. [2023-08-23 23:52:59,639 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2023-08-23 23:52:59,663 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bc6bef77/e0cfeb7624654536ae4e5de02edfeb06/FLAGc26e916e5 [2023-08-23 23:52:59,677 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bc6bef77/e0cfeb7624654536ae4e5de02edfeb06 [2023-08-23 23:52:59,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-23 23:52:59,685 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-23 23:52:59,686 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-23 23:52:59,686 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-23 23:52:59,688 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-23 23:52:59,690 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.08 11:52:59" (1/1) ... [2023-08-23 23:52:59,691 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5466599d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:52:59, skipping insertion in model container [2023-08-23 23:52:59,692 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.08 11:52:59" (1/1) ... [2023-08-23 23:52:59,747 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-23 23:52:59,909 WARN L240 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_67-pthread_cond_wait_unknown_1_neg.i[1103,1116] [2023-08-23 23:53:00,194 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-23 23:53:00,205 INFO L201 MainTranslator]: Completed pre-run [2023-08-23 23:53:00,214 WARN L240 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_67-pthread_cond_wait_unknown_1_neg.i[1103,1116] [2023-08-23 23:53:00,219 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [231] [2023-08-23 23:53:00,221 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-23 23:53:00,228 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [730] [2023-08-23 23:53:00,242 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-23 23:53:00,317 WARN L669 CHandler]: The function sleep is called, but not defined or handled by StandardFunctionHandler. [2023-08-23 23:53:00,325 INFO L206 MainTranslator]: Completed translation [2023-08-23 23:53:00,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:53:00 WrapperNode [2023-08-23 23:53:00,326 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-23 23:53:00,327 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-23 23:53:00,327 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-23 23:53:00,327 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-23 23:53:00,334 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:53:00" (1/1) ... [2023-08-23 23:53:00,364 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:53:00" (1/1) ... [2023-08-23 23:53:00,385 INFO L138 Inliner]: procedures = 354, calls = 38, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2023-08-23 23:53:00,386 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-23 23:53:00,386 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-23 23:53:00,386 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-23 23:53:00,387 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-23 23:53:00,393 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:53:00" (1/1) ... [2023-08-23 23:53:00,394 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:53:00" (1/1) ... [2023-08-23 23:53:00,398 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:53:00" (1/1) ... [2023-08-23 23:53:00,398 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:53:00" (1/1) ... [2023-08-23 23:53:00,407 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:53:00" (1/1) ... [2023-08-23 23:53:00,409 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:53:00" (1/1) ... [2023-08-23 23:53:00,412 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:53:00" (1/1) ... [2023-08-23 23:53:00,414 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:53:00" (1/1) ... [2023-08-23 23:53:00,419 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-23 23:53:00,420 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-23 23:53:00,420 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-23 23:53:00,420 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-23 23:53:00,421 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:53:00" (1/1) ... [2023-08-23 23:53:00,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-23 23:53:00,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-23 23:53:00,454 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) [2023-08-23 23:53:00,471 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 [2023-08-23 23:53:00,503 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2023-08-23 23:53:00,503 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2023-08-23 23:53:00,504 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2023-08-23 23:53:00,504 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2023-08-23 23:53:00,504 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2023-08-23 23:53:00,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-23 23:53:00,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-23 23:53:00,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-23 23:53:00,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-23 23:53:00,504 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-23 23:53:00,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-23 23:53:00,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-23 23:53:00,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-23 23:53:00,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-23 23:53:00,507 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-23 23:53:00,796 INFO L236 CfgBuilder]: Building ICFG [2023-08-23 23:53:00,797 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-23 23:53:00,943 INFO L277 CfgBuilder]: Performing block encoding [2023-08-23 23:53:00,958 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-23 23:53:00,958 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-23 23:53:00,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 11:53:00 BoogieIcfgContainer [2023-08-23 23:53:00,960 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-23 23:53:00,963 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-23 23:53:00,963 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-23 23:53:00,966 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-23 23:53:00,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.08 11:52:59" (1/3) ... [2023-08-23 23:53:00,967 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@745b4f78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.08 11:53:00, skipping insertion in model container [2023-08-23 23:53:00,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:53:00" (2/3) ... [2023-08-23 23:53:00,967 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@745b4f78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.08 11:53:00, skipping insertion in model container [2023-08-23 23:53:00,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 11:53:00" (3/3) ... [2023-08-23 23:53:00,968 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2023-08-23 23:53:00,983 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-23 23:53:00,984 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-23 23:53:00,984 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-23 23:53:01,033 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-23 23:53:01,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 88 transitions, 192 flow [2023-08-23 23:53:01,100 INFO L124 PetriNetUnfolderBase]: 1/86 cut-off events. [2023-08-23 23:53:01,100 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-23 23:53:01,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 86 events. 1/86 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2023-08-23 23:53:01,104 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 88 transitions, 192 flow [2023-08-23 23:53:01,107 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 70 transitions, 149 flow [2023-08-23 23:53:01,110 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-23 23:53:01,117 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 70 transitions, 149 flow [2023-08-23 23:53:01,119 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 70 transitions, 149 flow [2023-08-23 23:53:01,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 70 transitions, 149 flow [2023-08-23 23:53:01,135 INFO L124 PetriNetUnfolderBase]: 0/70 cut-off events. [2023-08-23 23:53:01,136 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-23 23:53:01,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 70 events. 0/70 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-08-23 23:53:01,137 INFO L119 LiptonReduction]: Number of co-enabled transitions 552 [2023-08-23 23:53:04,219 INFO L134 LiptonReduction]: Checked pairs total: 1004 [2023-08-23 23:53:04,219 INFO L136 LiptonReduction]: Total number of compositions: 55 [2023-08-23 23:53:04,231 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-23 23:53:04,237 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;@3ebafe2e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-23 23:53:04,237 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-23 23:53:04,241 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-23 23:53:04,241 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2023-08-23 23:53:04,241 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-23 23:53:04,241 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-23 23:53:04,242 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-23 23:53:04,242 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-23 23:53:04,246 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-23 23:53:04,247 INFO L85 PathProgramCache]: Analyzing trace with hash 112016611, now seen corresponding path program 1 times [2023-08-23 23:53:04,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-23 23:53:04,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242546193] [2023-08-23 23:53:04,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-23 23:53:04,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-23 23:53:04,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-23 23:53:04,485 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-23 23:53:04,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-23 23:53:04,556 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-23 23:53:04,558 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-23 23:53:04,559 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-08-23 23:53:04,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-08-23 23:53:04,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-08-23 23:53:04,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-08-23 23:53:04,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-23 23:53:04,563 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-23 23:53:04,574 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-23 23:53:04,574 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-23 23:53:04,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.08 11:53:04 BasicIcfg [2023-08-23 23:53:04,609 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-23 23:53:04,610 INFO L158 Benchmark]: Toolchain (without parser) took 4925.36ms. Allocated memory was 402.7MB in the beginning and 492.8MB in the end (delta: 90.2MB). Free memory was 376.6MB in the beginning and 358.9MB in the end (delta: 17.7MB). Peak memory consumption was 109.3MB. Max. memory is 16.0GB. [2023-08-23 23:53:04,611 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 402.7MB. Free memory was 379.0MB in the beginning and 378.9MB in the end (delta: 81.5kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-23 23:53:04,613 INFO L158 Benchmark]: CACSL2BoogieTranslator took 639.85ms. Allocated memory is still 402.7MB. Free memory was 376.3MB in the beginning and 338.3MB in the end (delta: 38.0MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. [2023-08-23 23:53:04,613 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.28ms. Allocated memory is still 402.7MB. Free memory was 338.3MB in the beginning and 335.4MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-23 23:53:04,613 INFO L158 Benchmark]: Boogie Preprocessor took 33.25ms. Allocated memory is still 402.7MB. Free memory was 335.4MB in the beginning and 333.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-23 23:53:04,614 INFO L158 Benchmark]: RCFGBuilder took 540.68ms. Allocated memory is still 402.7MB. Free memory was 333.0MB in the beginning and 366.6MB in the end (delta: -33.6MB). Peak memory consumption was 14.8MB. Max. memory is 16.0GB. [2023-08-23 23:53:04,614 INFO L158 Benchmark]: TraceAbstraction took 3645.71ms. Allocated memory was 402.7MB in the beginning and 492.8MB in the end (delta: 90.2MB). Free memory was 365.8MB in the beginning and 358.9MB in the end (delta: 6.9MB). Peak memory consumption was 96.6MB. Max. memory is 16.0GB. [2023-08-23 23:53:04,621 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 402.7MB. Free memory was 379.0MB in the beginning and 378.9MB in the end (delta: 81.5kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 639.85ms. Allocated memory is still 402.7MB. Free memory was 376.3MB in the beginning and 338.3MB in the end (delta: 38.0MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 59.28ms. Allocated memory is still 402.7MB. Free memory was 338.3MB in the beginning and 335.4MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 33.25ms. Allocated memory is still 402.7MB. Free memory was 335.4MB in the beginning and 333.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 540.68ms. Allocated memory is still 402.7MB. Free memory was 333.0MB in the beginning and 366.6MB in the end (delta: -33.6MB). Peak memory consumption was 14.8MB. Max. memory is 16.0GB. * TraceAbstraction took 3645.71ms. Allocated memory was 402.7MB in the beginning and 492.8MB in the end (delta: 90.2MB). Free memory was 365.8MB in the beginning and 358.9MB in the end (delta: 6.9MB). Peak memory consumption was 96.6MB. 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: 3.1s, 77 PlacesBefore, 22 PlacesAfterwards, 70 TransitionsBefore, 15 TransitionsAfterwards, 552 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 21 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 55 TotalNumberOfCompositions, 1004 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 650, independent: 568, independent conditional: 0, independent unconditional: 568, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 305, independent: 286, independent conditional: 0, independent unconditional: 286, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 650, independent: 282, independent conditional: 0, independent unconditional: 282, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 305, unknown conditional: 0, unknown unconditional: 305] , Statistics on independence cache: Total cache size (in pairs): 35, Positive cache size: 29, Positive conditional cache size: 0, Positive unconditional cache size: 29, 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: 19]: a call to reach_error is reachable a call to reach_error is reachable 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))=-1, ptr={0:0}, t1={6:0}, t2={5:0}] [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=0, mut={3:0}, pthread_create(&t2,((void *)0),f2,((void *)0))=0, ptr={0:0}, t1={6:0}, t2={5:0}] [L1365] CALL 2 __VERIFIER_assert(!(g == 0)) [L19] COND TRUE 2 !(cond) [L19] 2 reach_error() VAL [\old(cond)=0, cond=0, cond={4:0}, g=0, mut={3:0}, 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, 118 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: 3.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 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! [2023-08-23 23:53:04,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...