/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/28-race_reach_45-escape_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 11:42:18,829 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 11:42:18,875 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 11:42:18,880 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 11:42:18,880 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 11:42:18,900 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 11:42:18,901 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 11:42:18,901 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 11:42:18,902 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 11:42:18,902 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 11:42:18,902 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 11:42:18,903 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 11:42:18,903 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 11:42:18,903 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 11:42:18,904 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 11:42:18,904 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 11:42:18,904 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 11:42:18,904 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 11:42:18,905 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 11:42:18,905 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 11:42:18,905 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 11:42:18,906 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 11:42:18,906 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 11:42:18,906 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 11:42:18,906 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 11:42:18,907 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 11:42:18,907 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 11:42:18,907 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 11:42:18,908 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 11:42:18,908 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 11:42:18,908 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 11:42:18,908 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 11:42:18,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 11:42:18,909 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 11:42:18,909 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 11:42:18,910 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 11:42:19,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 11:42:19,238 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 11:42:19,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 11:42:19,241 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 11:42:19,242 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 11:42:19,247 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i [2023-08-27 11:42:20,402 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 11:42:20,628 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 11:42:20,629 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i [2023-08-27 11:42:20,646 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f1989ff6/c7e898984276487aa83c9bd88e1ca26d/FLAG473dee030 [2023-08-27 11:42:20,662 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f1989ff6/c7e898984276487aa83c9bd88e1ca26d [2023-08-27 11:42:20,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 11:42:20,669 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 11:42:20,672 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 11:42:20,672 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 11:42:20,675 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 11:42:20,677 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:42:20" (1/1) ... [2023-08-27 11:42:20,677 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b5a41f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:42:20, skipping insertion in model container [2023-08-27 11:42:20,678 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:42:20" (1/1) ... [2023-08-27 11:42:20,731 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 11:42:21,028 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 11:42:21,042 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 11:42:21,070 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-27 11:42:21,072 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-27 11:42:21,099 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 11:42:21,141 INFO L206 MainTranslator]: Completed translation [2023-08-27 11:42:21,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:42:21 WrapperNode [2023-08-27 11:42:21,143 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 11:42:21,144 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 11:42:21,144 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 11:42:21,144 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 11:42:21,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:42:21" (1/1) ... [2023-08-27 11:42:21,177 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:42:21" (1/1) ... [2023-08-27 11:42:21,196 INFO L138 Inliner]: procedures = 170, calls = 46, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2023-08-27 11:42:21,197 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 11:42:21,197 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 11:42:21,197 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 11:42:21,197 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 11:42:21,205 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:42:21" (1/1) ... [2023-08-27 11:42:21,205 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:42:21" (1/1) ... [2023-08-27 11:42:21,207 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:42:21" (1/1) ... [2023-08-27 11:42:21,208 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:42:21" (1/1) ... [2023-08-27 11:42:21,212 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:42:21" (1/1) ... [2023-08-27 11:42:21,215 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:42:21" (1/1) ... [2023-08-27 11:42:21,217 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:42:21" (1/1) ... [2023-08-27 11:42:21,218 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:42:21" (1/1) ... [2023-08-27 11:42:21,220 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 11:42:21,221 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 11:42:21,221 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 11:42:21,221 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 11:42:21,221 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:42:21" (1/1) ... [2023-08-27 11:42:21,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 11:42:21,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 11:42:21,250 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 11:42:21,273 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 11:42:21,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 11:42:21,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 11:42:21,287 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-27 11:42:21,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 11:42:21,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 11:42:21,288 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-27 11:42:21,288 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-27 11:42:21,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 11:42:21,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 11:42:21,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 11:42:21,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 11:42:21,289 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 11:42:21,443 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 11:42:21,446 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 11:42:21,695 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 11:42:21,703 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 11:42:21,703 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-08-27 11:42:21,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:42:21 BoogieIcfgContainer [2023-08-27 11:42:21,705 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 11:42:21,710 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 11:42:21,710 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 11:42:21,713 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 11:42:21,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 11:42:20" (1/3) ... [2023-08-27 11:42:21,714 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7780332c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:42:21, skipping insertion in model container [2023-08-27 11:42:21,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:42:21" (2/3) ... [2023-08-27 11:42:21,714 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7780332c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:42:21, skipping insertion in model container [2023-08-27 11:42:21,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:42:21" (3/3) ... [2023-08-27 11:42:21,716 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_45-escape_racing.i [2023-08-27 11:42:21,732 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 11:42:21,732 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-27 11:42:21,732 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 11:42:21,811 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-27 11:42:21,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 114 transitions, 236 flow [2023-08-27 11:42:21,900 INFO L124 PetriNetUnfolderBase]: 10/113 cut-off events. [2023-08-27 11:42:21,901 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 11:42:21,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 113 events. 10/113 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 200 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 67. Up to 3 conditions per place. [2023-08-27 11:42:21,907 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 114 transitions, 236 flow [2023-08-27 11:42:21,911 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 104 transitions, 211 flow [2023-08-27 11:42:21,914 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 11:42:21,923 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 104 transitions, 211 flow [2023-08-27 11:42:21,925 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 104 transitions, 211 flow [2023-08-27 11:42:21,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 104 transitions, 211 flow [2023-08-27 11:42:21,947 INFO L124 PetriNetUnfolderBase]: 10/104 cut-off events. [2023-08-27 11:42:21,948 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 11:42:21,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 104 events. 10/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 176 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 67. Up to 3 conditions per place. [2023-08-27 11:42:21,950 INFO L119 LiptonReduction]: Number of co-enabled transitions 2132 [2023-08-27 11:42:25,586 INFO L134 LiptonReduction]: Checked pairs total: 4032 [2023-08-27 11:42:25,586 INFO L136 LiptonReduction]: Total number of compositions: 101 [2023-08-27 11:42:25,598 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 11:42:25,603 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;@4511c31a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 11:42:25,604 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-08-27 11:42:25,607 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 11:42:25,607 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2023-08-27 11:42:25,607 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 11:42:25,607 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:42:25,608 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 11:42:25,608 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-27 11:42:25,612 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:42:25,613 INFO L85 PathProgramCache]: Analyzing trace with hash 416814669, now seen corresponding path program 1 times [2023-08-27 11:42:25,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:42:25,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896574675] [2023-08-27 11:42:25,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:42:25,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:42:25,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:42:26,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:42:26,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:42:26,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896574675] [2023-08-27 11:42:26,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896574675] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:42:26,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:42:26,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 11:42:26,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714759493] [2023-08-27 11:42:26,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:42:26,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 11:42:26,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:42:26,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 11:42:26,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 11:42:26,135 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 215 [2023-08-27 11:42:26,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 30 transitions, 63 flow. Second operand has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:26,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:42:26,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 215 [2023-08-27 11:42:26,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:42:26,316 INFO L124 PetriNetUnfolderBase]: 70/184 cut-off events. [2023-08-27 11:42:26,317 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 11:42:26,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 184 events. 70/184 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 744 event pairs, 7 based on Foata normal form. 6/162 useless extension candidates. Maximal degree in co-relation 349. Up to 99 conditions per place. [2023-08-27 11:42:26,319 INFO L140 encePairwiseOnDemand]: 198/215 looper letters, 28 selfloop transitions, 5 changer transitions 4/39 dead transitions. [2023-08-27 11:42:26,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 39 transitions, 155 flow [2023-08-27 11:42:26,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 11:42:26,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 11:42:26,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 408 transitions. [2023-08-27 11:42:26,336 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37953488372093025 [2023-08-27 11:42:26,336 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 408 transitions. [2023-08-27 11:42:26,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 408 transitions. [2023-08-27 11:42:26,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:42:26,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 408 transitions. [2023-08-27 11:42:26,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 81.6) internal successors, (408), 5 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:26,348 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 215.0) internal successors, (1290), 6 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:26,349 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 215.0) internal successors, (1290), 6 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:26,350 INFO L175 Difference]: Start difference. First operand has 26 places, 30 transitions, 63 flow. Second operand 5 states and 408 transitions. [2023-08-27 11:42:26,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 39 transitions, 155 flow [2023-08-27 11:42:26,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 39 transitions, 154 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 11:42:26,354 INFO L231 Difference]: Finished difference. Result has 31 places, 21 transitions, 72 flow [2023-08-27 11:42:26,356 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=72, PETRI_PLACES=31, PETRI_TRANSITIONS=21} [2023-08-27 11:42:26,359 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 5 predicate places. [2023-08-27 11:42:26,359 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 21 transitions, 72 flow [2023-08-27 11:42:26,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:26,359 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:42:26,360 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:42:26,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 11:42:26,360 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-27 11:42:26,361 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:42:26,361 INFO L85 PathProgramCache]: Analyzing trace with hash 574661934, now seen corresponding path program 1 times [2023-08-27 11:42:26,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:42:26,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326786362] [2023-08-27 11:42:26,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:42:26,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:42:26,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:42:26,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:42:26,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:42:26,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326786362] [2023-08-27 11:42:26,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326786362] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:42:26,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:42:26,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-27 11:42:26,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702088801] [2023-08-27 11:42:26,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:42:26,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-27 11:42:26,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:42:26,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-27 11:42:26,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-27 11:42:26,574 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 215 [2023-08-27 11:42:26,575 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 72 flow. Second operand has 6 states, 6 states have (on average 71.16666666666667) internal successors, (427), 6 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:26,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:42:26,575 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 215 [2023-08-27 11:42:26,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:42:26,730 INFO L124 PetriNetUnfolderBase]: 59/162 cut-off events. [2023-08-27 11:42:26,730 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2023-08-27 11:42:26,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 384 conditions, 162 events. 59/162 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 627 event pairs, 3 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 368. Up to 47 conditions per place. [2023-08-27 11:42:26,735 INFO L140 encePairwiseOnDemand]: 208/215 looper letters, 28 selfloop transitions, 6 changer transitions 8/44 dead transitions. [2023-08-27 11:42:26,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 44 transitions, 212 flow [2023-08-27 11:42:26,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-27 11:42:26,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-27 11:42:26,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 534 transitions. [2023-08-27 11:42:26,741 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3548172757475083 [2023-08-27 11:42:26,742 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 534 transitions. [2023-08-27 11:42:26,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 534 transitions. [2023-08-27 11:42:26,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:42:26,743 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 534 transitions. [2023-08-27 11:42:26,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 76.28571428571429) internal successors, (534), 7 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:26,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 215.0) internal successors, (1720), 8 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:26,751 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 215.0) internal successors, (1720), 8 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:26,752 INFO L175 Difference]: Start difference. First operand has 31 places, 21 transitions, 72 flow. Second operand 7 states and 534 transitions. [2023-08-27 11:42:26,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 44 transitions, 212 flow [2023-08-27 11:42:26,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 44 transitions, 204 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-27 11:42:26,754 INFO L231 Difference]: Finished difference. Result has 33 places, 20 transitions, 75 flow [2023-08-27 11:42:26,755 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=75, PETRI_PLACES=33, PETRI_TRANSITIONS=20} [2023-08-27 11:42:26,755 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2023-08-27 11:42:26,756 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 20 transitions, 75 flow [2023-08-27 11:42:26,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.16666666666667) internal successors, (427), 6 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:26,756 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:42:26,757 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:42:26,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 11:42:26,758 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-27 11:42:26,762 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:42:26,764 INFO L85 PathProgramCache]: Analyzing trace with hash 574661933, now seen corresponding path program 1 times [2023-08-27 11:42:26,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:42:26,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238278822] [2023-08-27 11:42:26,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:42:26,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:42:26,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:42:26,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:42:26,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:42:26,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238278822] [2023-08-27 11:42:26,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238278822] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:42:26,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:42:26,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 11:42:26,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117934546] [2023-08-27 11:42:26,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:42:26,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 11:42:26,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:42:26,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 11:42:26,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 11:42:26,895 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 215 [2023-08-27 11:42:26,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 20 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:26,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:42:26,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 215 [2023-08-27 11:42:26,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:42:26,946 INFO L124 PetriNetUnfolderBase]: 45/123 cut-off events. [2023-08-27 11:42:26,946 INFO L125 PetriNetUnfolderBase]: For 65/65 co-relation queries the response was YES. [2023-08-27 11:42:26,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316 conditions, 123 events. 45/123 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 423 event pairs, 21 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 299. Up to 86 conditions per place. [2023-08-27 11:42:26,947 INFO L140 encePairwiseOnDemand]: 213/215 looper letters, 14 selfloop transitions, 1 changer transitions 7/23 dead transitions. [2023-08-27 11:42:26,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 23 transitions, 123 flow [2023-08-27 11:42:26,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 11:42:26,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 11:42:26,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 247 transitions. [2023-08-27 11:42:26,949 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3829457364341085 [2023-08-27 11:42:26,949 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 247 transitions. [2023-08-27 11:42:26,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 247 transitions. [2023-08-27 11:42:26,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:42:26,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 247 transitions. [2023-08-27 11:42:26,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:26,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:26,952 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:26,952 INFO L175 Difference]: Start difference. First operand has 33 places, 20 transitions, 75 flow. Second operand 3 states and 247 transitions. [2023-08-27 11:42:26,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 23 transitions, 123 flow [2023-08-27 11:42:26,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 23 transitions, 107 flow, removed 1 selfloop flow, removed 6 redundant places. [2023-08-27 11:42:26,956 INFO L231 Difference]: Finished difference. Result has 28 places, 14 transitions, 44 flow [2023-08-27 11:42:26,956 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=28, PETRI_TRANSITIONS=14} [2023-08-27 11:42:26,957 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 2 predicate places. [2023-08-27 11:42:26,960 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 14 transitions, 44 flow [2023-08-27 11:42:26,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:26,960 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:42:26,960 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:42:26,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 11:42:26,961 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-27 11:42:26,962 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:42:26,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1644037528, now seen corresponding path program 1 times [2023-08-27 11:42:26,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:42:26,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63115738] [2023-08-27 11:42:26,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:42:26,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:42:26,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:42:27,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:42:27,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:42:27,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63115738] [2023-08-27 11:42:27,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63115738] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:42:27,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:42:27,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 11:42:27,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6368258] [2023-08-27 11:42:27,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:42:27,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 11:42:27,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:42:27,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 11:42:27,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 11:42:27,054 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 215 [2023-08-27 11:42:27,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 14 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:27,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:42:27,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 215 [2023-08-27 11:42:27,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:42:27,095 INFO L124 PetriNetUnfolderBase]: 10/41 cut-off events. [2023-08-27 11:42:27,096 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-08-27 11:42:27,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 41 events. 10/41 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 4 based on Foata normal form. 7/48 useless extension candidates. Maximal degree in co-relation 93. Up to 21 conditions per place. [2023-08-27 11:42:27,097 INFO L140 encePairwiseOnDemand]: 209/215 looper letters, 10 selfloop transitions, 6 changer transitions 1/18 dead transitions. [2023-08-27 11:42:27,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 18 transitions, 92 flow [2023-08-27 11:42:27,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 11:42:27,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 11:42:27,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 275 transitions. [2023-08-27 11:42:27,101 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4263565891472868 [2023-08-27 11:42:27,101 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 275 transitions. [2023-08-27 11:42:27,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 275 transitions. [2023-08-27 11:42:27,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:42:27,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 275 transitions. [2023-08-27 11:42:27,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:27,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:27,103 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 215.0) internal successors, (860), 4 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:27,104 INFO L175 Difference]: Start difference. First operand has 28 places, 14 transitions, 44 flow. Second operand 3 states and 275 transitions. [2023-08-27 11:42:27,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 18 transitions, 92 flow [2023-08-27 11:42:27,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 18 transitions, 87 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-27 11:42:27,105 INFO L231 Difference]: Finished difference. Result has 23 places, 15 transitions, 61 flow [2023-08-27 11:42:27,105 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=61, PETRI_PLACES=23, PETRI_TRANSITIONS=15} [2023-08-27 11:42:27,105 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -3 predicate places. [2023-08-27 11:42:27,106 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 15 transitions, 61 flow [2023-08-27 11:42:27,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:42:27,106 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:42:27,106 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:42:27,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 11:42:27,106 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-27 11:42:27,107 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:42:27,107 INFO L85 PathProgramCache]: Analyzing trace with hash -573234659, now seen corresponding path program 1 times [2023-08-27 11:42:27,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:42:27,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679898528] [2023-08-27 11:42:27,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:42:27,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:42:27,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 11:42:27,136 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 11:42:27,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 11:42:27,174 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 11:42:27,174 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 11:42:27,175 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (9 of 10 remaining) [2023-08-27 11:42:27,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 10 remaining) [2023-08-27 11:42:27,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2023-08-27 11:42:27,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2023-08-27 11:42:27,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2023-08-27 11:42:27,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2023-08-27 11:42:27,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2023-08-27 11:42:27,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2023-08-27 11:42:27,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2023-08-27 11:42:27,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2023-08-27 11:42:27,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 11:42:27,178 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-27 11:42:27,182 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 11:42:27,182 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 11:42:27,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 11:42:27 BasicIcfg [2023-08-27 11:42:27,204 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 11:42:27,205 INFO L158 Benchmark]: Toolchain (without parser) took 6535.57ms. Allocated memory was 362.8MB in the beginning and 471.9MB in the end (delta: 109.1MB). Free memory was 321.0MB in the beginning and 306.8MB in the end (delta: 14.2MB). Peak memory consumption was 124.3MB. Max. memory is 16.0GB. [2023-08-27 11:42:27,205 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 362.8MB. Free memory was 340.8MB in the beginning and 340.6MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 11:42:27,206 INFO L158 Benchmark]: CACSL2BoogieTranslator took 471.25ms. Allocated memory is still 362.8MB. Free memory was 321.0MB in the beginning and 301.1MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-27 11:42:27,206 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.56ms. Allocated memory is still 362.8MB. Free memory was 301.1MB in the beginning and 299.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 11:42:27,206 INFO L158 Benchmark]: Boogie Preprocessor took 22.59ms. Allocated memory is still 362.8MB. Free memory was 299.0MB in the beginning and 297.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 11:42:27,206 INFO L158 Benchmark]: RCFGBuilder took 485.01ms. Allocated memory is still 362.8MB. Free memory was 296.9MB in the beginning and 281.1MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-27 11:42:27,207 INFO L158 Benchmark]: TraceAbstraction took 5494.72ms. Allocated memory was 362.8MB in the beginning and 471.9MB in the end (delta: 109.1MB). Free memory was 281.1MB in the beginning and 306.8MB in the end (delta: -25.7MB). Peak memory consumption was 84.4MB. Max. memory is 16.0GB. [2023-08-27 11:42:27,208 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 362.8MB. Free memory was 340.8MB in the beginning and 340.6MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 471.25ms. Allocated memory is still 362.8MB. Free memory was 321.0MB in the beginning and 301.1MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 52.56ms. Allocated memory is still 362.8MB. Free memory was 301.1MB in the beginning and 299.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 22.59ms. Allocated memory is still 362.8MB. Free memory was 299.0MB in the beginning and 297.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 485.01ms. Allocated memory is still 362.8MB. Free memory was 296.9MB in the beginning and 281.1MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 5494.72ms. Allocated memory was 362.8MB in the beginning and 471.9MB in the end (delta: 109.1MB). Free memory was 281.1MB in the beginning and 306.8MB in the end (delta: -25.7MB). Peak memory consumption was 84.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.7s, 98 PlacesBefore, 26 PlacesAfterwards, 104 TransitionsBefore, 30 TransitionsAfterwards, 2132 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 101 TotalNumberOfCompositions, 4032 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2087, independent: 1947, independent conditional: 0, independent unconditional: 1947, dependent: 140, dependent conditional: 0, dependent unconditional: 140, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1263, independent: 1219, independent conditional: 0, independent unconditional: 1219, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2087, independent: 728, independent conditional: 0, independent unconditional: 728, dependent: 96, dependent conditional: 0, dependent unconditional: 96, unknown: 1263, unknown conditional: 0, unknown unconditional: 1263] , Statistics on independence cache: Total cache size (in pairs): 68, Positive cache size: 46, Positive conditional cache size: 0, Positive unconditional cache size: 46, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 690]: assertion can be violated assertion can be violated We found a FailurePath: [L696] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L697] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L698] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L707] 0 pthread_t id; [L708] 0 int i = 0; [L709] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, (void *) &i) VAL [__global_lock={3:0}, arg={6:0}, i={6:0}, id={7:0}, mutex1={4:0}, mutex2={5:0}, pthread_create(&id, ((void *)0), t_fun, (void *) &i)=-1] [L700] 1 int *p = (int *) arg; [L702] EXPR 1 \read(*p) [L702] 1 (*p)++ VAL [(*p)++=0, \read(*p)=0, __global_lock={3:0}, arg={6:0}, arg={6:0}, mutex1={4:0}, mutex2={5:0}, p={6:0}] [L711] EXPR 0 \read(i) [L711] CALL 0 __VERIFIER_assert((i) == 0) [L691] COND TRUE 0 !(cond) [L691] CALL 0 reach_error() [L690] COND FALSE 0 !(0) [L690] 0 __assert_fail ("0", "racemacros.h", 9, __extension__ __PRETTY_FUNCTION__) VAL [__global_lock={3:0}, arg={6:0}, arg={6:0}, mutex1={4:0}, mutex2={5:0}, p={6:0}] - UnprovableResult [Line: 709]: 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: 702]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 142 locations, 10 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: 5.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 78 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 78 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 259 IncrementalHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 1 mSDtfsCounter, 259 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=2, InterpolantAutomatonStates: 18, 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, 0.7s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 110 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 11:42:27,225 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...