/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 09:13:43,514 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 09:13:43,579 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-NoLbe.epf [2023-11-30 09:13:43,601 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 09:13:43,602 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 09:13:43,602 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 09:13:43,603 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 09:13:43,603 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 09:13:43,603 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 09:13:43,606 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 09:13:43,606 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 09:13:43,606 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 09:13:43,606 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 09:13:43,607 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 09:13:43,607 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 09:13:43,608 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 09:13:43,608 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 09:13:43,609 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 09:13:43,609 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 09:13:43,609 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 09:13:43,609 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 09:13:43,609 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 09:13:43,610 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 09:13:43,610 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 09:13:43,610 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 09:13:43,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 09:13:43,610 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 09:13:43,610 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 09:13:43,610 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 09:13:43,611 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 09:13:43,611 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 09:13:43,611 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 09:13:43,611 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 09:13:43,611 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 09:13:43,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 09:13:43,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 09:13:43,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 09:13:43,794 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 09:13:43,796 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 09:13:43,797 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c [2023-11-30 09:13:44,779 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 09:13:44,970 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 09:13:44,970 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c [2023-11-30 09:13:44,981 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6d0a5ef0/580be849c34f4edc9c5c5572c0644194/FLAGf7652291e [2023-11-30 09:13:44,993 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6d0a5ef0/580be849c34f4edc9c5c5572c0644194 [2023-11-30 09:13:44,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 09:13:44,996 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 09:13:44,998 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 09:13:44,999 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 09:13:45,002 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 09:13:45,002 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 09:13:44" (1/1) ... [2023-11-30 09:13:45,004 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bb8bf67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:13:45, skipping insertion in model container [2023-11-30 09:13:45,004 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 09:13:44" (1/1) ... [2023-11-30 09:13:45,026 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 09:13:45,131 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 09:13:45,142 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 09:13:45,168 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 09:13:45,174 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 09:13:45,175 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 09:13:45,179 INFO L206 MainTranslator]: Completed translation [2023-11-30 09:13:45,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:13:45 WrapperNode [2023-11-30 09:13:45,180 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 09:13:45,181 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 09:13:45,181 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 09:13:45,181 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 09:13:45,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:13:45" (1/1) ... [2023-11-30 09:13:45,192 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:13:45" (1/1) ... [2023-11-30 09:13:45,214 INFO L138 Inliner]: procedures = 26, calls = 116, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 365 [2023-11-30 09:13:45,214 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 09:13:45,215 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 09:13:45,215 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 09:13:45,215 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 09:13:45,225 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:13:45" (1/1) ... [2023-11-30 09:13:45,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:13:45" (1/1) ... [2023-11-30 09:13:45,231 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:13:45" (1/1) ... [2023-11-30 09:13:45,231 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:13:45" (1/1) ... [2023-11-30 09:13:45,236 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:13:45" (1/1) ... [2023-11-30 09:13:45,237 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:13:45" (1/1) ... [2023-11-30 09:13:45,239 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:13:45" (1/1) ... [2023-11-30 09:13:45,240 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:13:45" (1/1) ... [2023-11-30 09:13:45,243 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 09:13:45,243 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 09:13:45,243 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 09:13:45,243 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 09:13:45,244 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:13:45" (1/1) ... [2023-11-30 09:13:45,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 09:13:45,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:13:45,266 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) [2023-11-30 09:13:45,274 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 [2023-11-30 09:13:45,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 09:13:45,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 09:13:45,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 09:13:45,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 09:13:45,295 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-30 09:13:45,295 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-30 09:13:45,295 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-30 09:13:45,295 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-30 09:13:45,295 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-30 09:13:45,295 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-30 09:13:45,295 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-30 09:13:45,296 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-30 09:13:45,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 09:13:45,296 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-11-30 09:13:45,296 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-11-30 09:13:45,296 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-11-30 09:13:45,296 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-11-30 09:13:45,296 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2023-11-30 09:13:45,296 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2023-11-30 09:13:45,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-30 09:13:45,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-30 09:13:45,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 09:13:45,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 09:13:45,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 09:13:45,298 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-30 09:13:45,390 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 09:13:45,392 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 09:13:45,752 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 09:13:45,844 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 09:13:45,844 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-30 09:13:45,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 09:13:45 BoogieIcfgContainer [2023-11-30 09:13:45,845 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 09:13:45,847 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 09:13:45,847 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 09:13:45,849 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 09:13:45,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 09:13:44" (1/3) ... [2023-11-30 09:13:45,850 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@771b14c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 09:13:45, skipping insertion in model container [2023-11-30 09:13:45,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:13:45" (2/3) ... [2023-11-30 09:13:45,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@771b14c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 09:13:45, skipping insertion in model container [2023-11-30 09:13:45,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 09:13:45" (3/3) ... [2023-11-30 09:13:45,852 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-7.wvr.c [2023-11-30 09:13:45,863 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 09:13:45,863 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-11-30 09:13:45,863 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 09:13:45,948 INFO L144 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2023-11-30 09:13:45,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 275 places, 255 transitions, 559 flow [2023-11-30 09:13:46,065 INFO L124 PetriNetUnfolderBase]: 2/248 cut-off events. [2023-11-30 09:13:46,066 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-30 09:13:46,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 248 events. 2/248 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 214 event pairs, 0 based on Foata normal form. 0/218 useless extension candidates. Maximal degree in co-relation 195. Up to 2 conditions per place. [2023-11-30 09:13:46,075 INFO L82 GeneralOperation]: Start removeDead. Operand has 275 places, 255 transitions, 559 flow [2023-11-30 09:13:46,085 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 237 places, 216 transitions, 471 flow [2023-11-30 09:13:46,100 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 09:13:46,107 INFO L362 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@6e886b13, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 09:13:46,107 INFO L363 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2023-11-30 09:13:46,129 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 09:13:46,130 INFO L124 PetriNetUnfolderBase]: 1/83 cut-off events. [2023-11-30 09:13:46,130 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 09:13:46,130 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:13:46,130 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:13:46,131 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2023-11-30 09:13:46,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:13:46,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1068151931, now seen corresponding path program 1 times [2023-11-30 09:13:46,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:13:46,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389026101] [2023-11-30 09:13:46,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:13:46,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:13:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:13:46,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:13:46,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:13:46,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389026101] [2023-11-30 09:13:46,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389026101] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:13:46,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:13:46,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 09:13:46,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095972053] [2023-11-30 09:13:46,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:13:46,489 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 09:13:46,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:13:46,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 09:13:46,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 09:13:46,513 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 255 [2023-11-30 09:13:46,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 216 transitions, 471 flow. Second operand has 4 states, 4 states have (on average 183.25) internal successors, (733), 4 states have internal predecessors, (733), 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) [2023-11-30 09:13:46,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:13:46,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 255 [2023-11-30 09:13:46,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand