/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_19-publish-precision_unknown_2_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-23 23:51:10,843 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-23 23:51:10,913 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 23:51:10,919 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-23 23:51:10,920 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-23 23:51:10,940 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-23 23:51:10,941 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-23 23:51:10,941 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-23 23:51:10,942 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-23 23:51:10,942 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-23 23:51:10,942 INFO L153 SettingsManager]: * Use SBE=true [2023-08-23 23:51:10,943 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-23 23:51:10,943 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-23 23:51:10,943 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-23 23:51:10,944 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-23 23:51:10,944 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-23 23:51:10,944 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-23 23:51:10,945 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-23 23:51:10,945 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-23 23:51:10,945 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-23 23:51:10,946 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-23 23:51:10,950 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-23 23:51:10,950 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-23 23:51:10,951 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-23 23:51:10,951 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-23 23:51:10,951 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-23 23:51:10,951 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-23 23:51:10,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-23 23:51:10,952 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-23 23:51:10,952 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-23 23:51:10,953 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-23 23:51:10,953 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-23 23:51:10,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-23 23:51:10,953 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-23 23:51:10,954 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-23 23:51:10,954 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-08-23 23:51:11,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-23 23:51:11,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-23 23:51:11,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-23 23:51:11,273 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-23 23:51:11,273 INFO L274 PluginConnector]: CDTParser initialized [2023-08-23 23:51:11,274 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2023-08-23 23:51:12,388 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-23 23:51:12,644 INFO L384 CDTParser]: Found 1 translation units. [2023-08-23 23:51:12,644 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2023-08-23 23:51:12,659 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f49f4f38d/0eb7e01e0de2445a872b9c5ca1e96ead/FLAG7a36d34b5 [2023-08-23 23:51:12,675 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f49f4f38d/0eb7e01e0de2445a872b9c5ca1e96ead [2023-08-23 23:51:12,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-23 23:51:12,678 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-23 23:51:12,679 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-23 23:51:12,679 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-23 23:51:12,681 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-23 23:51:12,682 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.08 11:51:12" (1/1) ... [2023-08-23 23:51:12,683 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2884e903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:51:12, skipping insertion in model container [2023-08-23 23:51:12,683 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.08 11:51:12" (1/1) ... [2023-08-23 23:51:12,730 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-23 23:51:12,876 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_19-publish-precision_unknown_2_pos.i[1103,1116] [2023-08-23 23:51:13,034 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-23 23:51:13,047 INFO L201 MainTranslator]: Completed pre-run [2023-08-23 23:51:13,058 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_19-publish-precision_unknown_2_pos.i[1103,1116] [2023-08-23 23:51:13,076 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [231] [2023-08-23 23:51:13,077 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-23 23:51:13,093 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-23 23:51:13,137 INFO L206 MainTranslator]: Completed translation [2023-08-23 23:51:13,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:51:13 WrapperNode [2023-08-23 23:51:13,139 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-23 23:51:13,140 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-23 23:51:13,140 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-23 23:51:13,140 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-23 23:51:13,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:51:13" (1/1) ... [2023-08-23 23:51:13,174 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:51:13" (1/1) ... [2023-08-23 23:51:13,194 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2023-08-23 23:51:13,195 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-23 23:51:13,196 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-23 23:51:13,196 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-23 23:51:13,196 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-23 23:51:13,203 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:51:13" (1/1) ... [2023-08-23 23:51:13,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:51:13" (1/1) ... [2023-08-23 23:51:13,210 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:51:13" (1/1) ... [2023-08-23 23:51:13,210 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:51:13" (1/1) ... [2023-08-23 23:51:13,225 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:51:13" (1/1) ... [2023-08-23 23:51:13,227 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:51:13" (1/1) ... [2023-08-23 23:51:13,228 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:51:13" (1/1) ... [2023-08-23 23:51:13,229 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:51:13" (1/1) ... [2023-08-23 23:51:13,235 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-23 23:51:13,238 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-23 23:51:13,238 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-23 23:51:13,238 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-23 23:51:13,238 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:51:13" (1/1) ... [2023-08-23 23:51:13,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-23 23:51:13,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-23 23:51:13,269 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 23:51:13,295 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 23:51:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-23 23:51:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-23 23:51:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-23 23:51:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-23 23:51:13,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-23 23:51:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-23 23:51:13,310 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-23 23:51:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-23 23:51:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-23 23:51:13,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-23 23:51:13,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-23 23:51:13,311 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 23:51:13,417 INFO L236 CfgBuilder]: Building ICFG [2023-08-23 23:51:13,418 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-23 23:51:13,597 INFO L277 CfgBuilder]: Performing block encoding [2023-08-23 23:51:13,607 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-23 23:51:13,607 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-23 23:51:13,609 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 11:51:13 BoogieIcfgContainer [2023-08-23 23:51:13,609 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-23 23:51:13,612 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-23 23:51:13,613 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-23 23:51:13,615 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-23 23:51:13,616 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.08 11:51:12" (1/3) ... [2023-08-23 23:51:13,616 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d4d6a30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.08 11:51:13, skipping insertion in model container [2023-08-23 23:51:13,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.08 11:51:13" (2/3) ... [2023-08-23 23:51:13,617 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d4d6a30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.08 11:51:13, skipping insertion in model container [2023-08-23 23:51:13,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.08 11:51:13" (3/3) ... [2023-08-23 23:51:13,618 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_pos.i [2023-08-23 23:51:13,632 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-23 23:51:13,632 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-23 23:51:13,632 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-23 23:51:13,682 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-23 23:51:13,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 65 transitions, 138 flow [2023-08-23 23:51:13,765 INFO L124 PetriNetUnfolderBase]: 1/64 cut-off events. [2023-08-23 23:51:13,766 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-23 23:51:13,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 64 events. 1/64 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2023-08-23 23:51:13,770 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 65 transitions, 138 flow [2023-08-23 23:51:13,773 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 52 transitions, 107 flow [2023-08-23 23:51:13,776 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-23 23:51:13,790 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 52 transitions, 107 flow [2023-08-23 23:51:13,798 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 52 transitions, 107 flow [2023-08-23 23:51:13,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 52 transitions, 107 flow [2023-08-23 23:51:13,827 INFO L124 PetriNetUnfolderBase]: 0/52 cut-off events. [2023-08-23 23:51:13,827 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-23 23:51:13,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 52 events. 0/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 17 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-23 23:51:13,843 INFO L119 LiptonReduction]: Number of co-enabled transitions 252 [2023-08-23 23:51:15,973 INFO L134 LiptonReduction]: Checked pairs total: 530 [2023-08-23 23:51:15,974 INFO L136 LiptonReduction]: Total number of compositions: 40 [2023-08-23 23:51:15,984 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-23 23:51:15,990 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;@2d7860ee, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-23 23:51:15,990 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-23 23:51:15,993 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-23 23:51:15,993 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-08-23 23:51:15,993 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-23 23:51:15,993 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-23 23:51:15,994 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-23 23:51:15,994 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-23 23:51:15,998 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-23 23:51:15,998 INFO L85 PathProgramCache]: Analyzing trace with hash 6763455, now seen corresponding path program 1 times [2023-08-23 23:51:16,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-23 23:51:16,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825159574] [2023-08-23 23:51:16,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-23 23:51:16,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-23 23:51:16,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-23 23:51:16,098 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-23 23:51:16,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-23 23:51:16,130 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-23 23:51:16,132 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-23 23:51:16,132 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-08-23 23:51:16,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-23 23:51:16,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-23 23:51:16,134 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-23 23:51:16,139 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-23 23:51:16,139 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-23 23:51:16,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.08 11:51:16 BasicIcfg [2023-08-23 23:51:16,152 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-23 23:51:16,153 INFO L158 Benchmark]: Toolchain (without parser) took 3474.72ms. Allocated memory was 356.5MB in the beginning and 438.3MB in the end (delta: 81.8MB). Free memory was 332.2MB in the beginning and 328.3MB in the end (delta: 3.9MB). Peak memory consumption was 87.7MB. Max. memory is 16.0GB. [2023-08-23 23:51:16,154 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 356.5MB. Free memory is still 333.5MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-23 23:51:16,154 INFO L158 Benchmark]: CACSL2BoogieTranslator took 460.03ms. Allocated memory is still 356.5MB. Free memory was 331.7MB in the beginning and 312.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-23 23:51:16,155 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.14ms. Allocated memory is still 356.5MB. Free memory was 312.8MB in the beginning and 310.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-23 23:51:16,155 INFO L158 Benchmark]: Boogie Preprocessor took 39.97ms. Allocated memory is still 356.5MB. Free memory was 310.7MB in the beginning and 309.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-23 23:51:16,155 INFO L158 Benchmark]: RCFGBuilder took 371.60ms. Allocated memory is still 356.5MB. Free memory was 309.7MB in the beginning and 296.5MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-23 23:51:16,156 INFO L158 Benchmark]: TraceAbstraction took 2540.02ms. Allocated memory was 356.5MB in the beginning and 438.3MB in the end (delta: 81.8MB). Free memory was 296.0MB in the beginning and 328.3MB in the end (delta: -32.3MB). Peak memory consumption was 50.0MB. Max. memory is 16.0GB. [2023-08-23 23:51:16,158 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 356.5MB. Free memory is still 333.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 460.03ms. Allocated memory is still 356.5MB. Free memory was 331.7MB in the beginning and 312.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 55.14ms. Allocated memory is still 356.5MB. Free memory was 312.8MB in the beginning and 310.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 39.97ms. Allocated memory is still 356.5MB. Free memory was 310.7MB in the beginning and 309.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 371.60ms. Allocated memory is still 356.5MB. Free memory was 309.7MB in the beginning and 296.5MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2540.02ms. Allocated memory was 356.5MB in the beginning and 438.3MB in the end (delta: 81.8MB). Free memory was 296.0MB in the beginning and 328.3MB in the end (delta: -32.3MB). Peak memory consumption was 50.0MB. 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] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 56 PlacesBefore, 16 PlacesAfterwards, 52 TransitionsBefore, 12 TransitionsAfterwards, 252 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 13 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 40 TotalNumberOfCompositions, 530 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 303, independent: 200, independent conditional: 0, independent unconditional: 200, dependent: 103, dependent conditional: 0, dependent unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 143, independent: 123, independent conditional: 0, independent unconditional: 123, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 303, independent: 77, independent conditional: 0, independent unconditional: 77, dependent: 83, dependent conditional: 0, dependent unconditional: 83, unknown: 143, unknown conditional: 0, unknown unconditional: 143] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 5, Positive conditional cache size: 0, Positive unconditional cache size: 5, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, 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: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={6:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L699] CALL 0 __VERIFIER_assert(glob1 == 5) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, cond=0, glob1=0, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: 697]: 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, 81 locations, 2 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: 2.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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, 4 NumberOfCodeBlocks, 4 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 23:51:16,174 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...