/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-lamport.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 09:01:24,930 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 09:01:24,997 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 09:01:25,022 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 09:01:25,023 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 09:01:25,023 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 09:01:25,024 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 09:01:25,024 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 09:01:25,024 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 09:01:25,027 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 09:01:25,027 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 09:01:25,028 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 09:01:25,028 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 09:01:25,029 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 09:01:25,029 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 09:01:25,029 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 09:01:25,029 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 09:01:25,029 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 09:01:25,029 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 09:01:25,029 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 09:01:25,029 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 09:01:25,030 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 09:01:25,030 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 09:01:25,030 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 09:01:25,030 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 09:01:25,031 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 09:01:25,031 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 09:01:25,032 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 09:01:25,032 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 09:01:25,032 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 09:01:25,032 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 09:01:25,033 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 09:01:25,033 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 09:01:25,033 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 09:01:25,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 09:01:25,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 09:01:25,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 09:01:25,204 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 09:01:25,205 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 09:01:25,205 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-lamport.wvr.c [2023-11-30 09:01:26,101 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 09:01:26,244 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 09:01:26,245 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-lamport.wvr.c [2023-11-30 09:01:26,250 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f7e26e05/18f26242765d478aa3cbd1f38eeba825/FLAG2d8407be5 [2023-11-30 09:01:26,261 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f7e26e05/18f26242765d478aa3cbd1f38eeba825 [2023-11-30 09:01:26,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 09:01:26,264 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 09:01:26,266 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 09:01:26,266 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 09:01:26,269 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 09:01:26,270 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 09:01:26" (1/1) ... [2023-11-30 09:01:26,270 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31464fd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:01:26, skipping insertion in model container [2023-11-30 09:01:26,271 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 09:01:26" (1/1) ... [2023-11-30 09:01:26,286 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 09:01:26,388 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 09:01:26,394 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 09:01:26,419 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 09:01:26,424 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 09:01:26,424 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 09:01:26,429 INFO L206 MainTranslator]: Completed translation [2023-11-30 09:01:26,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:01:26 WrapperNode [2023-11-30 09:01:26,429 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 09:01:26,430 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 09:01:26,430 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 09:01:26,430 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 09:01:26,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:01:26" (1/1) ... [2023-11-30 09:01:26,439 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:01:26" (1/1) ... [2023-11-30 09:01:26,459 INFO L138 Inliner]: procedures = 25, calls = 90, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 254 [2023-11-30 09:01:26,460 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 09:01:26,460 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 09:01:26,460 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 09:01:26,460 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 09:01:26,466 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:01:26" (1/1) ... [2023-11-30 09:01:26,466 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:01:26" (1/1) ... [2023-11-30 09:01:26,473 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:01:26" (1/1) ... [2023-11-30 09:01:26,473 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:01:26" (1/1) ... [2023-11-30 09:01:26,479 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:01:26" (1/1) ... [2023-11-30 09:01:26,481 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:01:26" (1/1) ... [2023-11-30 09:01:26,482 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:01:26" (1/1) ... [2023-11-30 09:01:26,483 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:01:26" (1/1) ... [2023-11-30 09:01:26,485 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 09:01:26,488 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 09:01:26,488 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 09:01:26,488 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 09:01:26,488 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:01:26" (1/1) ... [2023-11-30 09:01:26,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 09:01:26,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:01:26,521 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 09:01:26,528 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 09:01:26,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 09:01:26,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 09:01:26,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 09:01:26,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 09:01:26,543 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-30 09:01:26,543 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-30 09:01:26,543 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-30 09:01:26,544 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-30 09:01:26,544 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-30 09:01:26,544 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-30 09:01:26,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 09:01:26,544 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-30 09:01:26,544 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-30 09:01:26,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-30 09:01:26,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 09:01:26,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 09:01:26,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 09:01:26,545 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 09:01:26,633 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 09:01:26,634 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 09:01:26,863 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 09:01:26,928 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 09:01:26,928 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-30 09:01:26,929 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 09:01:26 BoogieIcfgContainer [2023-11-30 09:01:26,929 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 09:01:26,931 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 09:01:26,931 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 09:01:26,932 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 09:01:26,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 09:01:26" (1/3) ... [2023-11-30 09:01:26,933 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aaf63d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 09:01:26, skipping insertion in model container [2023-11-30 09:01:26,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 09:01:26" (2/3) ... [2023-11-30 09:01:26,933 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aaf63d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 09:01:26, skipping insertion in model container [2023-11-30 09:01:26,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 09:01:26" (3/3) ... [2023-11-30 09:01:26,934 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-lamport.wvr.c [2023-11-30 09:01:26,946 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 09:01:26,946 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-30 09:01:26,946 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 09:01:27,001 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-30 09:01:27,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 207 places, 204 transitions, 429 flow [2023-11-30 09:01:27,087 INFO L124 PetriNetUnfolderBase]: 7/201 cut-off events. [2023-11-30 09:01:27,087 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-30 09:01:27,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 201 events. 7/201 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 143 event pairs, 0 based on Foata normal form. 0/188 useless extension candidates. Maximal degree in co-relation 165. Up to 2 conditions per place. [2023-11-30 09:01:27,090 INFO L82 GeneralOperation]: Start removeDead. Operand has 207 places, 204 transitions, 429 flow [2023-11-30 09:01:27,093 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 178 places, 174 transitions, 360 flow [2023-11-30 09:01:27,099 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 09:01:27,105 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;@44f3e4e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 09:01:27,105 INFO L363 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-11-30 09:01:27,118 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 09:01:27,118 INFO L124 PetriNetUnfolderBase]: 3/89 cut-off events. [2023-11-30 09:01:27,118 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 09:01:27,118 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:01:27,119 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] [2023-11-30 09:01:27,119 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 09:01:27,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:01:27,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1213789437, now seen corresponding path program 1 times [2023-11-30 09:01:27,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:01:27,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589283460] [2023-11-30 09:01:27,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:01:27,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:01:27,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:01:27,356 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 09:01:27,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:01:27,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589283460] [2023-11-30 09:01:27,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589283460] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:01:27,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:01:27,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 09:01:27,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959333144] [2023-11-30 09:01:27,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:01:27,364 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 09:01:27,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:01:27,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 09:01:27,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 09:01:27,385 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 204 [2023-11-30 09:01:27,387 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 174 transitions, 360 flow. Second operand has 4 states, 4 states have (on average 161.5) internal successors, (646), 4 states have internal predecessors, (646), 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 09:01:27,387 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:01:27,387 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 204 [2023-11-30 09:01:27,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:01:27,656 INFO L124 PetriNetUnfolderBase]: 558/1445 cut-off events. [2023-11-30 09:01:27,656 INFO L125 PetriNetUnfolderBase]: For 169/169 co-relation queries the response was YES. [2023-11-30 09:01:27,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2567 conditions, 1445 events. 558/1445 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 9686 event pairs, 556 based on Foata normal form. 4/1247 useless extension candidates. Maximal degree in co-relation 2353. Up to 932 conditions per place. [2023-11-30 09:01:27,668 INFO L140 encePairwiseOnDemand]: 192/204 looper letters, 39 selfloop transitions, 5 changer transitions 4/178 dead transitions. [2023-11-30 09:01:27,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 178 transitions, 456 flow [2023-11-30 09:01:27,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 09:01:27,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 09:01:27,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 852 transitions. [2023-11-30 09:01:27,683 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8352941176470589 [2023-11-30 09:01:27,683 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 852 transitions. [2023-11-30 09:01:27,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 852 transitions. [2023-11-30 09:01:27,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:01:27,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 852 transitions. [2023-11-30 09:01:27,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 170.4) internal successors, (852), 5 states have internal predecessors, (852), 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 09:01:27,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 204.0) internal successors, (1224), 6 states have internal predecessors, (1224), 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 09:01:27,697 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 204.0) internal successors, (1224), 6 states have internal predecessors, (1224), 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 09:01:27,699 INFO L307 CegarLoopForPetriNet]: 178 programPoint places, 4 predicate places. [2023-11-30 09:01:27,700 INFO L500 AbstractCegarLoop]: Abstraction has has 182 places, 178 transitions, 456 flow [2023-11-30 09:01:27,700 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 161.5) internal successors, (646), 4 states have internal predecessors, (646), 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 09:01:27,700 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:01:27,701 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 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 09:01:27,701 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 09:01:27,701 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 09:01:27,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:01:27,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1129745752, now seen corresponding path program 1 times [2023-11-30 09:01:27,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:01:27,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831257155] [2023-11-30 09:01:27,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:01:27,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:01:27,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:01:27,905 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:01:27,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:01:27,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831257155] [2023-11-30 09:01:27,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831257155] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:01:27,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901630374] [2023-11-30 09:01:27,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:01:27,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:01:27,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:01:27,909 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:01:27,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-30 09:01:28,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:01:28,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 09:01:28,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:01:28,088 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:01:28,088 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 09:01:28,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1901630374] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:01:28,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 09:01:28,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-30 09:01:28,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705877485] [2023-11-30 09:01:28,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:01:28,090 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 09:01:28,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:01:28,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 09:01:28,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-30 09:01:28,094 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 204 [2023-11-30 09:01:28,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 178 transitions, 456 flow. Second operand has 6 states, 6 states have (on average 162.16666666666666) internal successors, (973), 6 states have internal predecessors, (973), 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 09:01:28,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:01:28,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 204 [2023-11-30 09:01:28,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:01:28,387 INFO L124 PetriNetUnfolderBase]: 558/1444 cut-off events. [2023-11-30 09:01:28,387 INFO L125 PetriNetUnfolderBase]: For 331/435 co-relation queries the response was YES. [2023-11-30 09:01:28,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3504 conditions, 1444 events. 558/1444 cut-off events. For 331/435 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 9640 event pairs, 556 based on Foata normal form. 0/1243 useless extension candidates. Maximal degree in co-relation 3253. Up to 931 conditions per place. [2023-11-30 09:01:28,393 INFO L140 encePairwiseOnDemand]: 198/204 looper letters, 35 selfloop transitions, 8 changer transitions 4/177 dead transitions. [2023-11-30 09:01:28,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 177 transitions, 538 flow [2023-11-30 09:01:28,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 09:01:28,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 09:01:28,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1164 transitions. [2023-11-30 09:01:28,395 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8151260504201681 [2023-11-30 09:01:28,395 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1164 transitions. [2023-11-30 09:01:28,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1164 transitions. [2023-11-30 09:01:28,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:01:28,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1164 transitions. [2023-11-30 09:01:28,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 166.28571428571428) internal successors, (1164), 7 states have internal predecessors, (1164), 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 09:01:28,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 204.0) internal successors, (1632), 8 states have internal predecessors, (1632), 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 09:01:28,400 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 204.0) internal successors, (1632), 8 states have internal predecessors, (1632), 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 09:01:28,400 INFO L307 CegarLoopForPetriNet]: 178 programPoint places, 9 predicate places. [2023-11-30 09:01:28,400 INFO L500 AbstractCegarLoop]: Abstraction has has 187 places, 177 transitions, 538 flow [2023-11-30 09:01:28,401 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 162.16666666666666) internal successors, (973), 6 states have internal predecessors, (973), 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 09:01:28,401 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:01:28,401 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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 09:01:28,408 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-30 09:01:28,605 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:01:28,606 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 09:01:28,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:01:28,606 INFO L85 PathProgramCache]: Analyzing trace with hash -662379347, now seen corresponding path program 1 times [2023-11-30 09:01:28,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:01:28,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385286763] [2023-11-30 09:01:28,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:01:28,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:01:28,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:01:28,717 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:01:28,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:01:28,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385286763] [2023-11-30 09:01:28,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385286763] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:01:28,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913074934] [2023-11-30 09:01:28,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:01:28,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:01:28,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:01:28,720 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:01:28,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-30 09:01:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:01:28,797 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 09:01:28,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:01:28,839 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:01:28,839 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:01:28,891 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:01:28,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913074934] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:01:28,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:01:28,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-30 09:01:28,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139557918] [2023-11-30 09:01:28,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:01:28,894 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-30 09:01:28,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:01:28,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-30 09:01:28,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-30 09:01:28,897 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 204 [2023-11-30 09:01:28,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 177 transitions, 538 flow. Second operand has 12 states, 12 states have (on average 162.83333333333334) internal successors, (1954), 12 states have internal predecessors, (1954), 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 09:01:28,899 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:01:28,899 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 204 [2023-11-30 09:01:28,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:01:29,183 INFO L124 PetriNetUnfolderBase]: 561/1479 cut-off events. [2023-11-30 09:01:29,183 INFO L125 PetriNetUnfolderBase]: For 615/823 co-relation queries the response was YES. [2023-11-30 09:01:29,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4556 conditions, 1479 events. 561/1479 cut-off events. For 615/823 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 9856 event pairs, 556 based on Foata normal form. 0/1275 useless extension candidates. Maximal degree in co-relation 4153. Up to 957 conditions per place. [2023-11-30 09:01:29,190 INFO L140 encePairwiseOnDemand]: 197/204 looper letters, 51 selfloop transitions, 18 changer transitions 4/203 dead transitions. [2023-11-30 09:01:29,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 203 transitions, 832 flow [2023-11-30 09:01:29,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-30 09:01:29,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-30 09:01:29,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2312 transitions. [2023-11-30 09:01:29,194 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8095238095238095 [2023-11-30 09:01:29,194 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2312 transitions. [2023-11-30 09:01:29,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2312 transitions. [2023-11-30 09:01:29,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:01:29,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2312 transitions. [2023-11-30 09:01:29,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 165.14285714285714) internal successors, (2312), 14 states have internal predecessors, (2312), 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 09:01:29,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 204.0) internal successors, (3060), 15 states have internal predecessors, (3060), 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 09:01:29,203 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 204.0) internal successors, (3060), 15 states have internal predecessors, (3060), 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 09:01:29,203 INFO L307 CegarLoopForPetriNet]: 178 programPoint places, 22 predicate places. [2023-11-30 09:01:29,203 INFO L500 AbstractCegarLoop]: Abstraction has has 200 places, 203 transitions, 832 flow [2023-11-30 09:01:29,204 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 162.83333333333334) internal successors, (1954), 12 states have internal predecessors, (1954), 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 09:01:29,204 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:01:29,204 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, 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 09:01:29,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-30 09:01:29,410 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-30 09:01:29,410 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 09:01:29,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:01:29,411 INFO L85 PathProgramCache]: Analyzing trace with hash 2062054591, now seen corresponding path program 1 times [2023-11-30 09:01:29,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:01:29,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817429803] [2023-11-30 09:01:29,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:01:29,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:01:29,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:01:29,506 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 09:01:29,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:01:29,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817429803] [2023-11-30 09:01:29,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817429803] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:01:29,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:01:29,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 09:01:29,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26716078] [2023-11-30 09:01:29,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:01:29,508 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 09:01:29,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:01:29,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 09:01:29,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 09:01:29,509 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 204 [2023-11-30 09:01:29,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 203 transitions, 832 flow. Second operand has 4 states, 4 states have (on average 169.75) internal successors, (679), 4 states have internal predecessors, (679), 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 09:01:29,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:01:29,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 204 [2023-11-30 09:01:29,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:01:29,803 INFO L124 PetriNetUnfolderBase]: 958/2299 cut-off events. [2023-11-30 09:01:29,804 INFO L125 PetriNetUnfolderBase]: For 1787/2312 co-relation queries the response was YES. [2023-11-30 09:01:29,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8666 conditions, 2299 events. 958/2299 cut-off events. For 1787/2312 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 16452 event pairs, 670 based on Foata normal form. 0/2117 useless extension candidates. Maximal degree in co-relation 7449. Up to 1487 conditions per place. [2023-11-30 09:01:29,813 INFO L140 encePairwiseOnDemand]: 196/204 looper letters, 35 selfloop transitions, 6 changer transitions 32/245 dead transitions. [2023-11-30 09:01:29,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 245 transitions, 1315 flow [2023-11-30 09:01:29,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 09:01:29,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 09:01:29,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 913 transitions. [2023-11-30 09:01:29,815 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8950980392156863 [2023-11-30 09:01:29,815 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 913 transitions. [2023-11-30 09:01:29,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 913 transitions. [2023-11-30 09:01:29,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:01:29,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 913 transitions. [2023-11-30 09:01:29,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 182.6) internal successors, (913), 5 states have internal predecessors, (913), 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 09:01:29,818 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 204.0) internal successors, (1224), 6 states have internal predecessors, (1224), 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 09:01:29,818 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 204.0) internal successors, (1224), 6 states have internal predecessors, (1224), 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 09:01:29,819 INFO L307 CegarLoopForPetriNet]: 178 programPoint places, 26 predicate places. [2023-11-30 09:01:29,819 INFO L500 AbstractCegarLoop]: Abstraction has has 204 places, 245 transitions, 1315 flow [2023-11-30 09:01:29,819 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 169.75) internal successors, (679), 4 states have internal predecessors, (679), 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 09:01:29,819 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:01:29,820 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, 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 09:01:29,820 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 09:01:29,820 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 09:01:29,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:01:29,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1640349950, now seen corresponding path program 1 times [2023-11-30 09:01:29,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:01:29,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788345914] [2023-11-30 09:01:29,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:01:29,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:01:29,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:01:29,870 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 09:01:29,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:01:29,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788345914] [2023-11-30 09:01:29,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788345914] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:01:29,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:01:29,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 09:01:29,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697615596] [2023-11-30 09:01:29,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:01:29,871 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 09:01:29,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:01:29,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 09:01:29,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 09:01:29,872 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 204 [2023-11-30 09:01:29,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 245 transitions, 1315 flow. Second operand has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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 09:01:29,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:01:29,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 204 [2023-11-30 09:01:29,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:01:30,262 INFO L124 PetriNetUnfolderBase]: 1470/3335 cut-off events. [2023-11-30 09:01:30,262 INFO L125 PetriNetUnfolderBase]: For 6301/7061 co-relation queries the response was YES. [2023-11-30 09:01:30,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14811 conditions, 3335 events. 1470/3335 cut-off events. For 6301/7061 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 25902 event pairs, 468 based on Foata normal form. 6/3178 useless extension candidates. Maximal degree in co-relation 12876. Up to 2150 conditions per place. [2023-11-30 09:01:30,278 INFO L140 encePairwiseOnDemand]: 196/204 looper letters, 44 selfloop transitions, 6 changer transitions 91/314 dead transitions. [2023-11-30 09:01:30,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 314 transitions, 2297 flow [2023-11-30 09:01:30,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 09:01:30,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 09:01:30,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 909 transitions. [2023-11-30 09:01:30,285 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8911764705882353 [2023-11-30 09:01:30,286 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 909 transitions. [2023-11-30 09:01:30,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 909 transitions. [2023-11-30 09:01:30,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:01:30,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 909 transitions. [2023-11-30 09:01:30,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 181.8) internal successors, (909), 5 states have internal predecessors, (909), 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 09:01:30,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 204.0) internal successors, (1224), 6 states have internal predecessors, (1224), 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 09:01:30,289 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 204.0) internal successors, (1224), 6 states have internal predecessors, (1224), 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 09:01:30,291 INFO L307 CegarLoopForPetriNet]: 178 programPoint places, 30 predicate places. [2023-11-30 09:01:30,292 INFO L500 AbstractCegarLoop]: Abstraction has has 208 places, 314 transitions, 2297 flow [2023-11-30 09:01:30,292 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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 09:01:30,292 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:01:30,292 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, 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 09:01:30,292 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 09:01:30,293 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 09:01:30,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:01:30,293 INFO L85 PathProgramCache]: Analyzing trace with hash -119823452, now seen corresponding path program 1 times [2023-11-30 09:01:30,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:01:30,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980691104] [2023-11-30 09:01:30,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:01:30,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:01:30,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:01:30,355 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 09:01:30,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:01:30,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980691104] [2023-11-30 09:01:30,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980691104] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:01:30,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:01:30,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 09:01:30,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550395602] [2023-11-30 09:01:30,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:01:30,356 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 09:01:30,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:01:30,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 09:01:30,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 09:01:30,358 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 204 [2023-11-30 09:01:30,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 314 transitions, 2297 flow. Second operand has 6 states, 6 states have (on average 164.33333333333334) internal successors, (986), 6 states have internal predecessors, (986), 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 09:01:30,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:01:30,358 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 204 [2023-11-30 09:01:30,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:01:30,833 INFO L124 PetriNetUnfolderBase]: 1424/3212 cut-off events. [2023-11-30 09:01:30,834 INFO L125 PetriNetUnfolderBase]: For 8827/9598 co-relation queries the response was YES. [2023-11-30 09:01:30,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16598 conditions, 3212 events. 1424/3212 cut-off events. For 8827/9598 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 24119 event pairs, 203 based on Foata normal form. 32/3119 useless extension candidates. Maximal degree in co-relation 14493. Up to 2063 conditions per place. [2023-11-30 09:01:30,853 INFO L140 encePairwiseOnDemand]: 194/204 looper letters, 58 selfloop transitions, 9 changer transitions 101/334 dead transitions. [2023-11-30 09:01:30,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 334 transitions, 2802 flow [2023-11-30 09:01:30,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-30 09:01:30,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-30 09:01:30,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1917 transitions. [2023-11-30 09:01:30,857 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8542780748663101 [2023-11-30 09:01:30,857 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1917 transitions. [2023-11-30 09:01:30,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1917 transitions. [2023-11-30 09:01:30,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:01:30,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1917 transitions. [2023-11-30 09:01:30,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 174.27272727272728) internal successors, (1917), 11 states have internal predecessors, (1917), 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 09:01:30,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 204.0) internal successors, (2448), 12 states have internal predecessors, (2448), 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 09:01:30,865 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 204.0) internal successors, (2448), 12 states have internal predecessors, (2448), 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 09:01:30,867 INFO L307 CegarLoopForPetriNet]: 178 programPoint places, 39 predicate places. [2023-11-30 09:01:30,867 INFO L500 AbstractCegarLoop]: Abstraction has has 217 places, 334 transitions, 2802 flow [2023-11-30 09:01:30,867 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 164.33333333333334) internal successors, (986), 6 states have internal predecessors, (986), 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 09:01:30,868 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:01:30,868 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, 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 09:01:30,868 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-30 09:01:30,868 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 09:01:30,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:01:30,868 INFO L85 PathProgramCache]: Analyzing trace with hash 854580411, now seen corresponding path program 1 times [2023-11-30 09:01:30,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:01:30,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369305872] [2023-11-30 09:01:30,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:01:30,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:01:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:01:30,996 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 09:01:30,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:01:30,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369305872] [2023-11-30 09:01:30,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369305872] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:01:30,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:01:30,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 09:01:30,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333282878] [2023-11-30 09:01:30,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:01:30,997 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 09:01:30,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:01:30,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 09:01:30,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 09:01:30,999 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 204 [2023-11-30 09:01:30,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 334 transitions, 2802 flow. Second operand has 6 states, 6 states have (on average 164.33333333333334) internal successors, (986), 6 states have internal predecessors, (986), 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 09:01:30,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:01:30,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 204 [2023-11-30 09:01:31,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:01:31,456 INFO L124 PetriNetUnfolderBase]: 1368/3058 cut-off events. [2023-11-30 09:01:31,456 INFO L125 PetriNetUnfolderBase]: For 11126/11692 co-relation queries the response was YES. [2023-11-30 09:01:31,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18172 conditions, 3058 events. 1368/3058 cut-off events. For 11126/11692 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 22680 event pairs, 119 based on Foata normal form. 34/3008 useless extension candidates. Maximal degree in co-relation 17686. Up to 1978 conditions per place. [2023-11-30 09:01:31,470 INFO L140 encePairwiseOnDemand]: 191/204 looper letters, 25 selfloop transitions, 9 changer transitions 140/334 dead transitions. [2023-11-30 09:01:31,470 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 334 transitions, 3114 flow [2023-11-30 09:01:31,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-30 09:01:31,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-30 09:01:31,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1887 transitions. [2023-11-30 09:01:31,474 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8409090909090909 [2023-11-30 09:01:31,474 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1887 transitions. [2023-11-30 09:01:31,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1887 transitions. [2023-11-30 09:01:31,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:01:31,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1887 transitions. [2023-11-30 09:01:31,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 171.54545454545453) internal successors, (1887), 11 states have internal predecessors, (1887), 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 09:01:31,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 204.0) internal successors, (2448), 12 states have internal predecessors, (2448), 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 09:01:31,482 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 204.0) internal successors, (2448), 12 states have internal predecessors, (2448), 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 09:01:31,482 INFO L307 CegarLoopForPetriNet]: 178 programPoint places, 48 predicate places. [2023-11-30 09:01:31,482 INFO L500 AbstractCegarLoop]: Abstraction has has 226 places, 334 transitions, 3114 flow [2023-11-30 09:01:31,482 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 164.33333333333334) internal successors, (986), 6 states have internal predecessors, (986), 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 09:01:31,483 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:01:31,483 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, 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 09:01:31,483 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 09:01:31,483 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 09:01:31,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:01:31,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1743223870, now seen corresponding path program 1 times [2023-11-30 09:01:31,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:01:31,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258715324] [2023-11-30 09:01:31,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:01:31,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:01:31,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:01:31,635 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 09:01:31,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:01:31,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258715324] [2023-11-30 09:01:31,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258715324] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:01:31,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:01:31,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 09:01:31,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333459904] [2023-11-30 09:01:31,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:01:31,638 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 09:01:31,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:01:31,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 09:01:31,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 09:01:31,640 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 204 [2023-11-30 09:01:31,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 334 transitions, 3114 flow. Second operand has 6 states, 6 states have (on average 164.33333333333334) internal successors, (986), 6 states have internal predecessors, (986), 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 09:01:31,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:01:31,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 204 [2023-11-30 09:01:31,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:01:32,042 INFO L124 PetriNetUnfolderBase]: 1319/3005 cut-off events. [2023-11-30 09:01:32,042 INFO L125 PetriNetUnfolderBase]: For 13249/13797 co-relation queries the response was YES. [2023-11-30 09:01:32,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19759 conditions, 3005 events. 1319/3005 cut-off events. For 13249/13797 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 22325 event pairs, 36 based on Foata normal form. 57/3020 useless extension candidates. Maximal degree in co-relation 17285. Up to 1904 conditions per place. [2023-11-30 09:01:32,054 INFO L140 encePairwiseOnDemand]: 194/204 looper letters, 37 selfloop transitions, 7 changer transitions 141/345 dead transitions. [2023-11-30 09:01:32,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 345 transitions, 3638 flow [2023-11-30 09:01:32,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-30 09:01:32,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-30 09:01:32,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1911 transitions. [2023-11-30 09:01:32,058 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8516042780748663 [2023-11-30 09:01:32,058 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1911 transitions. [2023-11-30 09:01:32,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1911 transitions. [2023-11-30 09:01:32,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:01:32,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1911 transitions. [2023-11-30 09:01:32,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 173.72727272727272) internal successors, (1911), 11 states have internal predecessors, (1911), 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 09:01:32,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 204.0) internal successors, (2448), 12 states have internal predecessors, (2448), 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 09:01:32,064 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 204.0) internal successors, (2448), 12 states have internal predecessors, (2448), 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 09:01:32,064 INFO L307 CegarLoopForPetriNet]: 178 programPoint places, 57 predicate places. [2023-11-30 09:01:32,064 INFO L500 AbstractCegarLoop]: Abstraction has has 235 places, 345 transitions, 3638 flow [2023-11-30 09:01:32,064 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 164.33333333333334) internal successors, (986), 6 states have internal predecessors, (986), 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 09:01:32,065 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:01:32,065 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, 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 09:01:32,065 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-30 09:01:32,065 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 09:01:32,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:01:32,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1743223869, now seen corresponding path program 1 times [2023-11-30 09:01:32,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:01:32,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611627155] [2023-11-30 09:01:32,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:01:32,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:01:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:01:32,145 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 09:01:32,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:01:32,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611627155] [2023-11-30 09:01:32,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611627155] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 09:01:32,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 09:01:32,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 09:01:32,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683611923] [2023-11-30 09:01:32,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 09:01:32,148 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 09:01:32,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:01:32,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 09:01:32,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 09:01:32,149 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 204 [2023-11-30 09:01:32,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 345 transitions, 3638 flow. Second operand has 6 states, 6 states have (on average 164.33333333333334) internal successors, (986), 6 states have internal predecessors, (986), 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 09:01:32,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:01:32,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 204 [2023-11-30 09:01:32,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:01:32,641 INFO L124 PetriNetUnfolderBase]: 1270/2936 cut-off events. [2023-11-30 09:01:32,641 INFO L125 PetriNetUnfolderBase]: For 15359/15844 co-relation queries the response was YES. [2023-11-30 09:01:32,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21172 conditions, 2936 events. 1270/2936 cut-off events. For 15359/15844 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 21753 event pairs, 52 based on Foata normal form. 39/2963 useless extension candidates. Maximal degree in co-relation 18469. Up to 1830 conditions per place. [2023-11-30 09:01:32,651 INFO L140 encePairwiseOnDemand]: 191/204 looper letters, 0 selfloop transitions, 6 changer transitions 234/343 dead transitions. [2023-11-30 09:01:32,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 343 transitions, 3948 flow [2023-11-30 09:01:32,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-30 09:01:32,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-30 09:01:32,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1882 transitions. [2023-11-30 09:01:32,654 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.838680926916221 [2023-11-30 09:01:32,654 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1882 transitions. [2023-11-30 09:01:32,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1882 transitions. [2023-11-30 09:01:32,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:01:32,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1882 transitions. [2023-11-30 09:01:32,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 171.0909090909091) internal successors, (1882), 11 states have internal predecessors, (1882), 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 09:01:32,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 204.0) internal successors, (2448), 12 states have internal predecessors, (2448), 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 09:01:32,670 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 204.0) internal successors, (2448), 12 states have internal predecessors, (2448), 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 09:01:32,671 INFO L307 CegarLoopForPetriNet]: 178 programPoint places, 66 predicate places. [2023-11-30 09:01:32,671 INFO L500 AbstractCegarLoop]: Abstraction has has 244 places, 343 transitions, 3948 flow [2023-11-30 09:01:32,672 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 164.33333333333334) internal successors, (986), 6 states have internal predecessors, (986), 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 09:01:32,672 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 09:01:32,673 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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 09:01:32,673 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-30 09:01:32,673 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-30 09:01:32,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 09:01:32,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1956980450, now seen corresponding path program 2 times [2023-11-30 09:01:32,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 09:01:32,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84343729] [2023-11-30 09:01:32,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 09:01:32,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 09:01:32,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 09:01:32,795 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 09:01:32,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 09:01:32,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84343729] [2023-11-30 09:01:32,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84343729] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 09:01:32,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849029417] [2023-11-30 09:01:32,796 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 09:01:32,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:01:32,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 09:01:32,797 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 09:01:32,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-30 09:01:32,876 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 09:01:32,877 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 09:01:32,878 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-30 09:01:32,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 09:01:32,985 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-30 09:01:32,985 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 09:01:33,072 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-30 09:01:33,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849029417] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 09:01:33,073 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 09:01:33,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2023-11-30 09:01:33,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960136934] [2023-11-30 09:01:33,073 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 09:01:33,073 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-30 09:01:33,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 09:01:33,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-30 09:01:33,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2023-11-30 09:01:33,075 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 204 [2023-11-30 09:01:33,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 343 transitions, 3948 flow. Second operand has 18 states, 18 states have (on average 149.77777777777777) internal successors, (2696), 18 states have internal predecessors, (2696), 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 09:01:33,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 09:01:33,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 204 [2023-11-30 09:01:33,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 09:01:33,717 INFO L124 PetriNetUnfolderBase]: 1272/2975 cut-off events. [2023-11-30 09:01:33,717 INFO L125 PetriNetUnfolderBase]: For 18630/19169 co-relation queries the response was YES. [2023-11-30 09:01:33,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23110 conditions, 2975 events. 1272/2975 cut-off events. For 18630/19169 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 22379 event pairs, 129 based on Foata normal form. 0/2962 useless extension candidates. Maximal degree in co-relation 20078. Up to 1842 conditions per place. [2023-11-30 09:01:33,731 INFO L140 encePairwiseOnDemand]: 190/204 looper letters, 0 selfloop transitions, 0 changer transitions 355/355 dead transitions. [2023-11-30 09:01:33,731 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 355 transitions, 4480 flow [2023-11-30 09:01:33,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-30 09:01:33,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-30 09:01:33,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3596 transitions. [2023-11-30 09:01:33,738 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7344771241830066 [2023-11-30 09:01:33,738 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3596 transitions. [2023-11-30 09:01:33,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3596 transitions. [2023-11-30 09:01:33,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 09:01:33,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3596 transitions. [2023-11-30 09:01:33,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 149.83333333333334) internal successors, (3596), 24 states have internal predecessors, (3596), 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 09:01:33,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 204.0) internal successors, (5100), 25 states have internal predecessors, (5100), 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 09:01:33,751 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 204.0) internal successors, (5100), 25 states have internal predecessors, (5100), 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 09:01:33,752 INFO L307 CegarLoopForPetriNet]: 178 programPoint places, 88 predicate places. [2023-11-30 09:01:33,752 INFO L500 AbstractCegarLoop]: Abstraction has has 266 places, 355 transitions, 4480 flow [2023-11-30 09:01:33,752 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 149.77777777777777) internal successors, (2696), 18 states have internal predecessors, (2696), 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 09:01:33,757 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/parallel-lamport.wvr.c_BEv2_AllErrorsAtOnce [2023-11-30 09:01:33,805 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2023-11-30 09:01:33,805 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2023-11-30 09:01:33,805 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2023-11-30 09:01:33,805 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2023-11-30 09:01:33,805 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2023-11-30 09:01:33,805 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2023-11-30 09:01:33,805 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 13 remaining) [2023-11-30 09:01:33,806 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 13 remaining) [2023-11-30 09:01:33,806 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2023-11-30 09:01:33,806 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2023-11-30 09:01:33,806 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2023-11-30 09:01:33,806 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2023-11-30 09:01:33,806 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2023-11-30 09:01:33,812 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-30 09:01:34,010 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 09:01:34,011 INFO L457 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 09:01:34,015 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 09:01:34,015 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 09:01:34,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 09:01:34 BasicIcfg [2023-11-30 09:01:34,021 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 09:01:34,022 INFO L158 Benchmark]: Toolchain (without parser) took 7757.50ms. Allocated memory was 612.4MB in the beginning and 1.6GB in the end (delta: 985.7MB). Free memory was 566.0MB in the beginning and 932.5MB in the end (delta: -366.5MB). Peak memory consumption was 616.7MB. Max. memory is 16.0GB. [2023-11-30 09:01:34,022 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 375.4MB. Free memory was 324.0MB in the beginning and 323.9MB in the end (delta: 140.0kB). There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 09:01:34,022 INFO L158 Benchmark]: CACSL2BoogieTranslator took 163.34ms. Allocated memory is still 612.4MB. Free memory was 565.6MB in the beginning and 553.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-11-30 09:01:34,023 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.02ms. Allocated memory is still 612.4MB. Free memory was 553.1MB in the beginning and 551.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 09:01:34,023 INFO L158 Benchmark]: Boogie Preprocessor took 24.52ms. Allocated memory is still 612.4MB. Free memory was 551.0MB in the beginning and 548.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 09:01:34,023 INFO L158 Benchmark]: RCFGBuilder took 441.23ms. Allocated memory is still 612.4MB. Free memory was 548.9MB in the beginning and 517.4MB in the end (delta: 31.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. [2023-11-30 09:01:34,024 INFO L158 Benchmark]: TraceAbstraction took 7090.42ms. Allocated memory was 612.4MB in the beginning and 1.6GB in the end (delta: 985.7MB). Free memory was 516.7MB in the beginning and 932.5MB in the end (delta: -415.8MB). Peak memory consumption was 566.4MB. Max. memory is 16.0GB. [2023-11-30 09:01:34,025 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 375.4MB. Free memory was 324.0MB in the beginning and 323.9MB in the end (delta: 140.0kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 163.34ms. Allocated memory is still 612.4MB. Free memory was 565.6MB in the beginning and 553.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 30.02ms. Allocated memory is still 612.4MB. Free memory was 553.1MB in the beginning and 551.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 24.52ms. Allocated memory is still 612.4MB. Free memory was 551.0MB in the beginning and 548.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 441.23ms. Allocated memory is still 612.4MB. Free memory was 548.9MB in the beginning and 517.4MB in the end (delta: 31.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. * TraceAbstraction took 7090.42ms. Allocated memory was 612.4MB in the beginning and 1.6GB in the end (delta: 985.7MB). Free memory was 516.7MB in the beginning and 932.5MB in the end (delta: -415.8MB). Peak memory consumption was 566.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 171]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 171]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 240 locations, 13 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: 7.0s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 933 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 933 mSDsluCounter, 295 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 196 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1677 IncrementalHoareTripleChecker+Invalid, 1717 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 99 mSDtfsCounter, 1677 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 625 GetRequests, 504 SyntacticMatches, 5 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4480occurred in iteration=10, InterpolantAutomatonStates: 104, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1334 NumberOfCodeBlocks, 1294 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1527 ConstructedInterpolants, 0 QuantifiedInterpolants, 2287 SizeOfPredicates, 12 NumberOfNonLiveVariables, 562 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 135/314 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 09:01:34,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...