/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_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 04:53:15,808 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 04:53:15,901 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 04:53:15,906 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 04:53:15,907 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 04:53:15,939 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 04:53:15,940 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 04:53:15,940 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 04:53:15,941 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 04:53:15,944 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 04:53:15,944 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 04:53:15,944 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 04:53:15,945 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 04:53:15,946 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 04:53:15,946 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 04:53:15,946 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 04:53:15,946 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 04:53:15,947 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 04:53:15,947 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 04:53:15,947 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 04:53:15,947 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 04:53:15,948 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 04:53:15,948 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 04:53:15,949 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 04:53:15,949 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 04:53:15,949 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 04:53:15,949 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 04:53:15,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 04:53:15,950 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 04:53:15,950 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 04:53:15,951 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 04:53:15,951 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 04:53:15,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 04:53:15,951 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 04:53:15,951 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 04:53:15,952 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 04:53:16,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 04:53:16,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 04:53:16,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 04:53:16,279 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 04:53:16,279 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 04:53:16,280 INFO L431 ainManager$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 [2023-08-27 04:53:17,548 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 04:53:17,891 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 04:53:17,891 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2023-08-27 04:53:17,913 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/261cfc8ef/462a1144846a4561a3cdc4983a9a24f6/FLAG3b4d21950 [2023-08-27 04:53:17,929 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/261cfc8ef/462a1144846a4561a3cdc4983a9a24f6 [2023-08-27 04:53:17,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 04:53:17,936 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 04:53:17,938 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 04:53:17,938 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 04:53:17,941 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 04:53:17,942 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:53:17" (1/1) ... [2023-08-27 04:53:17,943 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28eca726 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:53:17, skipping insertion in model container [2023-08-27 04:53:17,944 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:53:17" (1/1) ... [2023-08-27 04:53:18,005 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 04:53:18,486 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 04:53:18,500 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 04:53:18,518 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [231] [2023-08-27 04:53:18,520 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-27 04:53:18,527 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [730] [2023-08-27 04:53:18,544 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 04:53:18,623 WARN L669 CHandler]: The function sleep is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 04:53:18,630 INFO L206 MainTranslator]: Completed translation [2023-08-27 04:53:18,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:53:18 WrapperNode [2023-08-27 04:53:18,630 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 04:53:18,631 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 04:53:18,632 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 04:53:18,632 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 04:53:18,638 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:53:18" (1/1) ... [2023-08-27 04:53:18,658 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:53:18" (1/1) ... [2023-08-27 04:53:18,688 INFO L138 Inliner]: procedures = 354, calls = 39, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 77 [2023-08-27 04:53:18,689 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 04:53:18,690 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 04:53:18,690 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 04:53:18,690 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 04:53:18,697 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:53:18" (1/1) ... [2023-08-27 04:53:18,698 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:53:18" (1/1) ... [2023-08-27 04:53:18,702 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:53:18" (1/1) ... [2023-08-27 04:53:18,702 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:53:18" (1/1) ... [2023-08-27 04:53:18,711 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:53:18" (1/1) ... [2023-08-27 04:53:18,713 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:53:18" (1/1) ... [2023-08-27 04:53:18,716 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:53:18" (1/1) ... [2023-08-27 04:53:18,718 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:53:18" (1/1) ... [2023-08-27 04:53:18,723 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 04:53:18,724 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 04:53:18,724 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 04:53:18,725 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 04:53:18,725 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:53:18" (1/1) ... [2023-08-27 04:53:18,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 04:53:18,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 04:53:18,758 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 04:53:18,785 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 04:53:18,801 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2023-08-27 04:53:18,801 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2023-08-27 04:53:18,802 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2023-08-27 04:53:18,802 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2023-08-27 04:53:18,802 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2023-08-27 04:53:18,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 04:53:18,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 04:53:18,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 04:53:18,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 04:53:18,803 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-27 04:53:18,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 04:53:18,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 04:53:18,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 04:53:18,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 04:53:18,806 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 04:53:19,114 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 04:53:19,115 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 04:53:19,247 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 04:53:19,253 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 04:53:19,254 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 04:53:19,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:53:19 BoogieIcfgContainer [2023-08-27 04:53:19,255 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 04:53:19,257 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 04:53:19,258 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 04:53:19,260 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 04:53:19,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 04:53:17" (1/3) ... [2023-08-27 04:53:19,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f308cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 04:53:19, skipping insertion in model container [2023-08-27 04:53:19,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:53:18" (2/3) ... [2023-08-27 04:53:19,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f308cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 04:53:19, skipping insertion in model container [2023-08-27 04:53:19,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:53:19" (3/3) ... [2023-08-27 04:53:19,263 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2023-08-27 04:53:19,278 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 04:53:19,278 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-27 04:53:19,279 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 04:53:19,334 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-27 04:53:19,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 92 transitions, 200 flow [2023-08-27 04:53:19,418 INFO L124 PetriNetUnfolderBase]: 2/90 cut-off events. [2023-08-27 04:53:19,418 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 04:53:19,422 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 04:53:19,423 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 92 transitions, 200 flow [2023-08-27 04:53:19,428 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 72 transitions, 153 flow [2023-08-27 04:53:19,432 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 04:53:19,446 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 72 transitions, 153 flow [2023-08-27 04:53:19,454 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 72 transitions, 153 flow [2023-08-27 04:53:19,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 72 transitions, 153 flow [2023-08-27 04:53:19,478 INFO L124 PetriNetUnfolderBase]: 0/72 cut-off events. [2023-08-27 04:53:19,478 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 04:53:19,478 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 04:53:19,479 INFO L119 LiptonReduction]: Number of co-enabled transitions 624 [2023-08-27 04:53:22,572 INFO L134 LiptonReduction]: Checked pairs total: 1057 [2023-08-27 04:53:22,573 INFO L136 LiptonReduction]: Total number of compositions: 57 [2023-08-27 04:53:22,585 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 04:53:22,590 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;@69a855bd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 04:53:22,591 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-27 04:53:22,594 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 04:53:22,594 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2023-08-27 04:53:22,594 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 04:53:22,594 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 04:53:22,595 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-27 04:53:22,595 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-27 04:53:22,599 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 04:53:22,599 INFO L85 PathProgramCache]: Analyzing trace with hash 642610242, now seen corresponding path program 1 times [2023-08-27 04:53:22,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 04:53:22,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553522885] [2023-08-27 04:53:22,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 04:53:22,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 04:53:22,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 04:53:22,807 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 04:53:22,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 04:53:22,892 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 04:53:22,893 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 04:53:22,894 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2023-08-27 04:53:22,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-08-27 04:53:22,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-08-27 04:53:22,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONASSERT (0 of 4 remaining) [2023-08-27 04:53:22,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 04:53:22,899 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 04:53:22,909 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 04:53:22,909 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 04:53:22,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 04:53:22 BasicIcfg [2023-08-27 04:53:22,940 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 04:53:22,941 INFO L158 Benchmark]: Toolchain (without parser) took 5005.55ms. Allocated memory was 364.9MB in the beginning and 438.3MB in the end (delta: 73.4MB). Free memory was 339.0MB in the beginning and 301.1MB in the end (delta: 37.9MB). Peak memory consumption was 113.7MB. Max. memory is 16.0GB. [2023-08-27 04:53:22,942 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 364.9MB. Free memory is still 340.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 04:53:22,944 INFO L158 Benchmark]: CACSL2BoogieTranslator took 692.51ms. Allocated memory is still 364.9MB. Free memory was 338.7MB in the beginning and 300.1MB in the end (delta: 38.5MB). Peak memory consumption was 39.8MB. Max. memory is 16.0GB. [2023-08-27 04:53:22,947 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.80ms. Allocated memory is still 364.9MB. Free memory was 300.1MB in the beginning and 297.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 04:53:22,947 INFO L158 Benchmark]: Boogie Preprocessor took 33.70ms. Allocated memory is still 364.9MB. Free memory was 297.4MB in the beginning and 295.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 04:53:22,948 INFO L158 Benchmark]: RCFGBuilder took 531.21ms. Allocated memory is still 364.9MB. Free memory was 295.0MB in the beginning and 329.0MB in the end (delta: -34.0MB). Peak memory consumption was 12.7MB. Max. memory is 16.0GB. [2023-08-27 04:53:22,949 INFO L158 Benchmark]: TraceAbstraction took 3682.85ms. Allocated memory was 364.9MB in the beginning and 438.3MB in the end (delta: 73.4MB). Free memory was 328.2MB in the beginning and 301.1MB in the end (delta: 27.1MB). Peak memory consumption was 103.1MB. Max. memory is 16.0GB. [2023-08-27 04:53:22,955 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 364.9MB. Free memory is still 340.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 692.51ms. Allocated memory is still 364.9MB. Free memory was 338.7MB in the beginning and 300.1MB in the end (delta: 38.5MB). Peak memory consumption was 39.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 57.80ms. Allocated memory is still 364.9MB. Free memory was 300.1MB in the beginning and 297.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 33.70ms. Allocated memory is still 364.9MB. Free memory was 297.4MB in the beginning and 295.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 531.21ms. Allocated memory is still 364.9MB. Free memory was 295.0MB in the beginning and 329.0MB in the end (delta: -34.0MB). Peak memory consumption was 12.7MB. Max. memory is 16.0GB. * TraceAbstraction took 3682.85ms. Allocated memory was 364.9MB in the beginning and 438.3MB in the end (delta: 73.4MB). Free memory was 328.2MB in the beginning and 301.1MB in the end (delta: 27.1MB). Peak memory consumption was 103.1MB. 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: 3.1s, 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}] [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))=-1, 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_neg.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [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, 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: 3.5s, 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! [2023-08-27 04:53:22,979 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...