/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 PROGRAM_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_18-first-reads_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 11:14:03,824 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 11:14:03,877 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 11:14:03,880 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 11:14:03,886 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 11:14:03,914 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 11:14:03,915 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 11:14:03,915 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 11:14:03,916 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 11:14:03,918 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 11:14:03,919 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 11:14:03,919 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 11:14:03,919 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 11:14:03,920 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 11:14:03,920 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 11:14:03,920 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 11:14:03,920 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 11:14:03,920 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 11:14:03,920 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 11:14:03,920 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 11:14:03,921 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 11:14:03,921 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 11:14:03,922 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 11:14:03,922 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 11:14:03,922 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 11:14:03,922 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 11:14:03,922 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 11:14:03,923 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 11:14:03,923 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 11:14:03,923 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 11:14:03,924 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 11:14:03,924 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 11:14:03,924 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 11:14:03,924 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 11:14:03,924 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 11:14:03,924 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 11:14:04,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 11:14:04,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 11:14:04,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 11:14:04,193 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 11:14:04,194 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 11:14:04,195 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i [2023-08-27 11:14:05,191 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 11:14:05,394 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 11:14:05,394 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i [2023-08-27 11:14:05,405 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/550d433e4/99c441f8d1ec488cb88bf4d54e14a43c/FLAG66c17f188 [2023-08-27 11:14:05,414 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/550d433e4/99c441f8d1ec488cb88bf4d54e14a43c [2023-08-27 11:14:05,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 11:14:05,417 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 11:14:05,418 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 11:14:05,418 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 11:14:05,419 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 11:14:05,420 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:14:05" (1/1) ... [2023-08-27 11:14:05,420 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aa082bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:14:05, skipping insertion in model container [2023-08-27 11:14:05,420 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:14:05" (1/1) ... [2023-08-27 11:14:05,452 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 11:14:05,621 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 11:14:05,635 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 11:14:05,665 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-27 11:14:05,666 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [233] [2023-08-27 11:14:05,675 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 11:14:05,702 INFO L206 MainTranslator]: Completed translation [2023-08-27 11:14:05,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:14:05 WrapperNode [2023-08-27 11:14:05,704 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 11:14:05,705 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 11:14:05,705 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 11:14:05,705 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 11:14:05,709 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:14:05" (1/1) ... [2023-08-27 11:14:05,733 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:14:05" (1/1) ... [2023-08-27 11:14:05,748 INFO L138 Inliner]: procedures = 163, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2023-08-27 11:14:05,748 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 11:14:05,748 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 11:14:05,749 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 11:14:05,749 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 11:14:05,754 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:14:05" (1/1) ... [2023-08-27 11:14:05,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:14:05" (1/1) ... [2023-08-27 11:14:05,755 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:14:05" (1/1) ... [2023-08-27 11:14:05,756 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:14:05" (1/1) ... [2023-08-27 11:14:05,758 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:14:05" (1/1) ... [2023-08-27 11:14:05,759 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:14:05" (1/1) ... [2023-08-27 11:14:05,760 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:14:05" (1/1) ... [2023-08-27 11:14:05,760 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:14:05" (1/1) ... [2023-08-27 11:14:05,762 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 11:14:05,762 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 11:14:05,762 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 11:14:05,762 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 11:14:05,763 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:14:05" (1/1) ... [2023-08-27 11:14:05,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 11:14:05,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 11:14:05,784 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 11:14:05,793 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 11:14:05,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 11:14:05,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 11:14:05,809 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-27 11:14:05,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 11:14:05,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 11:14:05,810 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-27 11:14:05,810 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-27 11:14:05,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 11:14:05,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 11:14:05,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 11:14:05,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 11:14:05,811 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 11:14:05,909 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 11:14:05,911 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 11:14:06,048 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 11:14:06,053 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 11:14:06,053 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 11:14:06,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:14:06 BoogieIcfgContainer [2023-08-27 11:14:06,055 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 11:14:06,056 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 11:14:06,056 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 11:14:06,059 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 11:14:06,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 11:14:05" (1/3) ... [2023-08-27 11:14:06,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2291d592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:14:06, skipping insertion in model container [2023-08-27 11:14:06,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:14:05" (2/3) ... [2023-08-27 11:14:06,060 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2291d592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:14:06, skipping insertion in model container [2023-08-27 11:14:06,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:14:06" (3/3) ... [2023-08-27 11:14:06,064 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_pos.i [2023-08-27 11:14:06,078 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 11:14:06,078 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-27 11:14:06,078 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 11:14:06,144 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-27 11:14:06,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 63 transitions, 134 flow [2023-08-27 11:14:06,227 INFO L124 PetriNetUnfolderBase]: 3/62 cut-off events. [2023-08-27 11:14:06,228 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 11:14:06,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 62 events. 3/62 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 29 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2023-08-27 11:14:06,231 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 63 transitions, 134 flow [2023-08-27 11:14:06,235 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 46 transitions, 95 flow [2023-08-27 11:14:06,239 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 11:14:06,256 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 46 transitions, 95 flow [2023-08-27 11:14:06,259 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 46 transitions, 95 flow [2023-08-27 11:14:06,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 46 transitions, 95 flow [2023-08-27 11:14:06,282 INFO L124 PetriNetUnfolderBase]: 1/46 cut-off events. [2023-08-27 11:14:06,283 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 11:14:06,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 46 events. 1/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 14 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2023-08-27 11:14:06,284 INFO L119 LiptonReduction]: Number of co-enabled transitions 216 [2023-08-27 11:14:07,806 INFO L134 LiptonReduction]: Checked pairs total: 210 [2023-08-27 11:14:07,806 INFO L136 LiptonReduction]: Total number of compositions: 44 [2023-08-27 11:14:07,815 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 11:14:07,820 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;@c410492, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 11:14:07,820 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-27 11:14:07,822 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 11:14:07,822 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-08-27 11:14:07,822 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 11:14:07,822 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:14:07,822 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 11:14:07,823 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONASSERT, t_funErr0ASSERT_VIOLATIONASSERT] === [2023-08-27 11:14:07,826 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:14:07,826 INFO L85 PathProgramCache]: Analyzing trace with hash 237951, now seen corresponding path program 1 times [2023-08-27 11:14:07,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:14:07,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490979142] [2023-08-27 11:14:07,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:14:07,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:14:07,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 11:14:07,914 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 11:14:07,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 11:14:07,941 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 11:14:07,942 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 11:14:07,943 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2023-08-27 11:14:07,944 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-27 11:14:07,945 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONASSERT (0 of 3 remaining) [2023-08-27 11:14:07,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 11:14:07,945 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 11:14:07,949 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 11:14:07,950 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 11:14:07,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 11:14:07 BasicIcfg [2023-08-27 11:14:07,961 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 11:14:07,962 INFO L158 Benchmark]: Toolchain (without parser) took 2545.16ms. Allocated memory was 394.3MB in the beginning and 474.0MB in the end (delta: 79.7MB). Free memory was 369.5MB in the beginning and 393.2MB in the end (delta: -23.8MB). Peak memory consumption was 56.8MB. Max. memory is 16.0GB. [2023-08-27 11:14:07,962 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 394.3MB. Free memory is still 371.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 11:14:07,963 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.59ms. Allocated memory is still 394.3MB. Free memory was 369.5MB in the beginning and 350.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-27 11:14:07,963 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.34ms. Allocated memory is still 394.3MB. Free memory was 350.6MB in the beginning and 348.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 11:14:07,963 INFO L158 Benchmark]: Boogie Preprocessor took 13.22ms. Allocated memory is still 394.3MB. Free memory was 348.5MB in the beginning and 347.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 11:14:07,964 INFO L158 Benchmark]: RCFGBuilder took 292.54ms. Allocated memory is still 394.3MB. Free memory was 347.3MB in the beginning and 334.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-27 11:14:07,964 INFO L158 Benchmark]: TraceAbstraction took 1905.24ms. Allocated memory was 394.3MB in the beginning and 474.0MB in the end (delta: 79.7MB). Free memory was 333.8MB in the beginning and 393.2MB in the end (delta: -59.4MB). Peak memory consumption was 21.2MB. Max. memory is 16.0GB. [2023-08-27 11:14:07,966 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 394.3MB. Free memory is still 371.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 286.59ms. Allocated memory is still 394.3MB. Free memory was 369.5MB in the beginning and 350.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 43.34ms. Allocated memory is still 394.3MB. Free memory was 350.6MB in the beginning and 348.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 13.22ms. Allocated memory is still 394.3MB. Free memory was 348.5MB in the beginning and 347.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 292.54ms. Allocated memory is still 394.3MB. Free memory was 347.3MB in the beginning and 334.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 1905.24ms. Allocated memory was 394.3MB in the beginning and 474.0MB in the end (delta: 79.7MB). Free memory was 333.8MB in the beginning and 393.2MB in the end (delta: -59.4MB). Peak memory consumption was 21.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] - GenericResultAtLocation [Line: 233]: Unsoundness Warning unspecified type, defaulting to int C: short [233] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.5s, 49 PlacesBefore, 9 PlacesAfterwards, 46 TransitionsBefore, 5 TransitionsAfterwards, 216 CoEnabledTransitionPairs, 5 FixpointIterations, 20 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 44 TotalNumberOfCompositions, 210 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 170, independent: 157, independent conditional: 0, independent unconditional: 157, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 122, independent: 112, independent conditional: 0, independent unconditional: 112, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 170, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 122, unknown conditional: 0, unknown unconditional: 122] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, 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: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND TRUE 1 t == 42 [L688] 1 glob1 = 1 [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(t == 0) [L19] COND TRUE 1 !(cond) [L19] CALL 1 reach_error() [L18] COND FALSE 1 !(0) [L18] 1 __assert_fail ("0", "13-privatized_18-first-reads_unknown_1_pos.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [glob1=1, mutex1={3:0}] - UnprovableResult [Line: 698]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 87 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-27 11:14:07,993 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...