/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/goblint-regression/04-mutex_04-munge_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 07:20:45,063 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 07:20:45,125 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 07:20:45,149 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 07:20:45,150 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 07:20:45,150 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 07:20:45,150 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 07:20:45,151 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 07:20:45,151 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 07:20:45,153 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 07:20:45,154 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 07:20:45,154 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 07:20:45,154 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 07:20:45,155 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 07:20:45,155 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 07:20:45,155 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 07:20:45,156 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 07:20:45,156 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 07:20:45,156 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 07:20:45,156 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 07:20:45,156 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 07:20:45,157 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 07:20:45,157 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 07:20:45,157 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 07:20:45,157 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 07:20:45,158 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 07:20:45,158 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 07:20:45,158 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 07:20:45,158 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 07:20:45,158 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 07:20:45,159 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 07:20:45,159 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 07:20:45,159 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 07:20:45,159 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 07:20:45,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 07:20:45,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 07:20:45,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 07:20:45,374 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 07:20:45,376 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 07:20:45,377 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_04-munge_nr.i [2023-11-30 07:20:46,290 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 07:20:46,510 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 07:20:46,510 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_04-munge_nr.i [2023-11-30 07:20:46,532 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c512f982/4460015682364a1c9e719eba098383ae/FLAG263bd257b [2023-11-30 07:20:46,545 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c512f982/4460015682364a1c9e719eba098383ae [2023-11-30 07:20:46,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 07:20:46,548 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 07:20:46,550 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 07:20:46,550 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 07:20:46,553 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 07:20:46,554 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 07:20:46" (1/1) ... [2023-11-30 07:20:46,555 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40095604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:46, skipping insertion in model container [2023-11-30 07:20:46,555 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 07:20:46" (1/1) ... [2023-11-30 07:20:46,594 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 07:20:46,833 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 07:20:46,842 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 07:20:46,864 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 07:20:46,935 INFO L206 MainTranslator]: Completed translation [2023-11-30 07:20:46,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:46 WrapperNode [2023-11-30 07:20:46,936 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 07:20:46,937 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 07:20:46,937 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 07:20:46,937 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 07:20:46,942 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:46" (1/1) ... [2023-11-30 07:20:46,966 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:46" (1/1) ... [2023-11-30 07:20:46,983 INFO L138 Inliner]: procedures = 264, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2023-11-30 07:20:46,984 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 07:20:46,984 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 07:20:46,984 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 07:20:46,984 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 07:20:46,989 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:46" (1/1) ... [2023-11-30 07:20:46,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:46" (1/1) ... [2023-11-30 07:20:46,997 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:46" (1/1) ... [2023-11-30 07:20:46,997 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:46" (1/1) ... [2023-11-30 07:20:47,006 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:46" (1/1) ... [2023-11-30 07:20:47,007 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:46" (1/1) ... [2023-11-30 07:20:47,008 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:46" (1/1) ... [2023-11-30 07:20:47,008 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:46" (1/1) ... [2023-11-30 07:20:47,010 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 07:20:47,010 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 07:20:47,010 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 07:20:47,010 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 07:20:47,011 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:46" (1/1) ... [2023-11-30 07:20:47,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 07:20:47,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:20:47,035 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 07:20:47,056 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 07:20:47,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 07:20:47,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 07:20:47,058 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-30 07:20:47,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 07:20:47,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 07:20:47,058 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-30 07:20:47,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 07:20:47,059 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-30 07:20:47,059 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-30 07:20:47,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 07:20:47,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 07:20:47,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 07:20:47,061 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 07:20:47,183 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 07:20:47,186 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 07:20:47,302 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 07:20:47,321 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 07:20:47,321 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-30 07:20:47,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 07:20:47 BoogieIcfgContainer [2023-11-30 07:20:47,322 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 07:20:47,324 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 07:20:47,324 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 07:20:47,326 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 07:20:47,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 07:20:46" (1/3) ... [2023-11-30 07:20:47,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37813839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 07:20:47, skipping insertion in model container [2023-11-30 07:20:47,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:46" (2/3) ... [2023-11-30 07:20:47,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37813839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 07:20:47, skipping insertion in model container [2023-11-30 07:20:47,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 07:20:47" (3/3) ... [2023-11-30 07:20:47,329 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_04-munge_nr.i [2023-11-30 07:20:47,342 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 07:20:47,342 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-30 07:20:47,342 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 07:20:47,375 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-30 07:20:47,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 60 transitions, 127 flow [2023-11-30 07:20:47,421 INFO L124 PetriNetUnfolderBase]: 0/59 cut-off events. [2023-11-30 07:20:47,421 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-30 07:20:47,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 59 events. 0/59 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 44 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-11-30 07:20:47,423 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 60 transitions, 127 flow [2023-11-30 07:20:47,432 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 51 transitions, 105 flow [2023-11-30 07:20:47,442 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 07:20:47,446 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;@4c7865f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 07:20:47,447 INFO L363 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-30 07:20:47,454 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 07:20:47,455 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2023-11-30 07:20:47,455 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 07:20:47,455 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:20:47,455 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] [2023-11-30 07:20:47,456 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:20:47,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:20:47,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1177662946, now seen corresponding path program 1 times [2023-11-30 07:20:47,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:20:47,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054137744] [2023-11-30 07:20:47,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:20:47,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:20:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:20:47,682 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 07:20:47,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:20:47,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054137744] [2023-11-30 07:20:47,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054137744] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:20:47,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:20:47,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 07:20:47,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893261144] [2023-11-30 07:20:47,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:20:47,692 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 07:20:47,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:20:47,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 07:20:47,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 07:20:47,720 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 60 [2023-11-30 07:20:47,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 51 transitions, 105 flow. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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 07:20:47,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:20:47,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 60 [2023-11-30 07:20:47,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:20:47,805 INFO L124 PetriNetUnfolderBase]: 29/146 cut-off events. [2023-11-30 07:20:47,805 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-30 07:20:47,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 146 events. 29/146 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 531 event pairs, 15 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 201. Up to 49 conditions per place. [2023-11-30 07:20:47,811 INFO L140 encePairwiseOnDemand]: 53/60 looper letters, 17 selfloop transitions, 3 changer transitions 4/59 dead transitions. [2023-11-30 07:20:47,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 59 transitions, 169 flow [2023-11-30 07:20:47,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 07:20:47,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 07:20:47,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 157 transitions. [2023-11-30 07:20:47,819 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8722222222222222 [2023-11-30 07:20:47,819 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 157 transitions. [2023-11-30 07:20:47,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 157 transitions. [2023-11-30 07:20:47,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:20:47,822 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 157 transitions. [2023-11-30 07:20:47,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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 07:20:47,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 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 07:20:47,826 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 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 07:20:47,828 INFO L307 CegarLoopForPetriNet]: 55 programPoint places, 2 predicate places. [2023-11-30 07:20:47,828 INFO L500 AbstractCegarLoop]: Abstraction has has 57 places, 59 transitions, 169 flow [2023-11-30 07:20:47,828 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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 07:20:47,829 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:20:47,829 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] [2023-11-30 07:20:47,829 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 07:20:47,829 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:20:47,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:20:47,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1086932407, now seen corresponding path program 1 times [2023-11-30 07:20:47,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:20:47,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590078648] [2023-11-30 07:20:47,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:20:47,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:20:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:20:48,071 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 07:20:48,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:20:48,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590078648] [2023-11-30 07:20:48,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590078648] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:20:48,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:20:48,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 07:20:48,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820786927] [2023-11-30 07:20:48,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:20:48,073 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-30 07:20:48,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:20:48,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-30 07:20:48,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-30 07:20:48,074 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 60 [2023-11-30 07:20:48,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 59 transitions, 169 flow. Second operand has 7 states, 7 states have (on average 40.142857142857146) internal successors, (281), 7 states have internal predecessors, (281), 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 07:20:48,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:20:48,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 60 [2023-11-30 07:20:48,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:20:48,349 INFO L124 PetriNetUnfolderBase]: 80/319 cut-off events. [2023-11-30 07:20:48,349 INFO L125 PetriNetUnfolderBase]: For 23/28 co-relation queries the response was YES. [2023-11-30 07:20:48,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 638 conditions, 319 events. 80/319 cut-off events. For 23/28 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1553 event pairs, 16 based on Foata normal form. 4/302 useless extension candidates. Maximal degree in co-relation 606. Up to 108 conditions per place. [2023-11-30 07:20:48,354 INFO L140 encePairwiseOnDemand]: 50/60 looper letters, 29 selfloop transitions, 30 changer transitions 4/99 dead transitions. [2023-11-30 07:20:48,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 99 transitions, 411 flow [2023-11-30 07:20:48,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-30 07:20:48,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-30 07:20:48,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 476 transitions. [2023-11-30 07:20:48,361 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7212121212121212 [2023-11-30 07:20:48,361 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 476 transitions. [2023-11-30 07:20:48,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 476 transitions. [2023-11-30 07:20:48,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:20:48,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 476 transitions. [2023-11-30 07:20:48,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 43.27272727272727) internal successors, (476), 11 states have internal predecessors, (476), 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 07:20:48,371 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 60.0) internal successors, (720), 12 states have internal predecessors, (720), 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 07:20:48,372 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 60.0) internal successors, (720), 12 states have internal predecessors, (720), 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 07:20:48,373 INFO L307 CegarLoopForPetriNet]: 55 programPoint places, 12 predicate places. [2023-11-30 07:20:48,373 INFO L500 AbstractCegarLoop]: Abstraction has has 67 places, 99 transitions, 411 flow [2023-11-30 07:20:48,374 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 40.142857142857146) internal successors, (281), 7 states have internal predecessors, (281), 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 07:20:48,374 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:20:48,374 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] [2023-11-30 07:20:48,374 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 07:20:48,374 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:20:48,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:20:48,375 INFO L85 PathProgramCache]: Analyzing trace with hash 631546815, now seen corresponding path program 2 times [2023-11-30 07:20:48,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:20:48,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653895094] [2023-11-30 07:20:48,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:20:48,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:20:48,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:20:48,557 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 07:20:48,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:20:48,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653895094] [2023-11-30 07:20:48,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653895094] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:20:48,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:20:48,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 07:20:48,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031660544] [2023-11-30 07:20:48,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:20:48,561 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-30 07:20:48,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:20:48,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-30 07:20:48,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-30 07:20:48,563 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 60 [2023-11-30 07:20:48,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 99 transitions, 411 flow. Second operand has 7 states, 7 states have (on average 40.142857142857146) internal successors, (281), 7 states have internal predecessors, (281), 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 07:20:48,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:20:48,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 60 [2023-11-30 07:20:48,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:20:48,756 INFO L124 PetriNetUnfolderBase]: 95/374 cut-off events. [2023-11-30 07:20:48,757 INFO L125 PetriNetUnfolderBase]: For 125/157 co-relation queries the response was YES. [2023-11-30 07:20:48,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 950 conditions, 374 events. 95/374 cut-off events. For 125/157 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1937 event pairs, 11 based on Foata normal form. 24/373 useless extension candidates. Maximal degree in co-relation 910. Up to 130 conditions per place. [2023-11-30 07:20:48,758 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 45 selfloop transitions, 50 changer transitions 6/137 dead transitions. [2023-11-30 07:20:48,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 137 transitions, 799 flow [2023-11-30 07:20:48,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 07:20:48,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 07:20:48,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 404 transitions. [2023-11-30 07:20:48,762 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7481481481481481 [2023-11-30 07:20:48,762 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 404 transitions. [2023-11-30 07:20:48,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 404 transitions. [2023-11-30 07:20:48,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:20:48,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 404 transitions. [2023-11-30 07:20:48,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 44.888888888888886) internal successors, (404), 9 states have internal predecessors, (404), 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 07:20:48,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 60.0) internal successors, (600), 10 states have internal predecessors, (600), 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 07:20:48,765 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 60.0) internal successors, (600), 10 states have internal predecessors, (600), 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 07:20:48,765 INFO L307 CegarLoopForPetriNet]: 55 programPoint places, 20 predicate places. [2023-11-30 07:20:48,766 INFO L500 AbstractCegarLoop]: Abstraction has has 75 places, 137 transitions, 799 flow [2023-11-30 07:20:48,766 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 40.142857142857146) internal successors, (281), 7 states have internal predecessors, (281), 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 07:20:48,766 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:20:48,766 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] [2023-11-30 07:20:48,766 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 07:20:48,766 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:20:48,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:20:48,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1808485111, now seen corresponding path program 3 times [2023-11-30 07:20:48,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:20:48,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822676188] [2023-11-30 07:20:48,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:20:48,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:20:48,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:20:48,923 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 07:20:48,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:20:48,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822676188] [2023-11-30 07:20:48,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822676188] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:20:48,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:20:48,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 07:20:48,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815633895] [2023-11-30 07:20:48,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:20:48,927 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-30 07:20:48,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:20:48,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-30 07:20:48,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-30 07:20:48,929 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 60 [2023-11-30 07:20:48,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 137 transitions, 799 flow. Second operand has 7 states, 7 states have (on average 40.142857142857146) internal successors, (281), 7 states have internal predecessors, (281), 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 07:20:48,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:20:48,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 60 [2023-11-30 07:20:48,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:20:49,136 INFO L124 PetriNetUnfolderBase]: 166/592 cut-off events. [2023-11-30 07:20:49,136 INFO L125 PetriNetUnfolderBase]: For 468/540 co-relation queries the response was YES. [2023-11-30 07:20:49,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1817 conditions, 592 events. 166/592 cut-off events. For 468/540 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3622 event pairs, 22 based on Foata normal form. 18/569 useless extension candidates. Maximal degree in co-relation 1769. Up to 215 conditions per place. [2023-11-30 07:20:49,139 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 75 selfloop transitions, 63 changer transitions 10/184 dead transitions. [2023-11-30 07:20:49,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 184 transitions, 1423 flow [2023-11-30 07:20:49,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-30 07:20:49,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-30 07:20:49,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 493 transitions. [2023-11-30 07:20:49,141 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.746969696969697 [2023-11-30 07:20:49,141 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 493 transitions. [2023-11-30 07:20:49,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 493 transitions. [2023-11-30 07:20:49,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:20:49,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 493 transitions. [2023-11-30 07:20:49,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 44.81818181818182) internal successors, (493), 11 states have internal predecessors, (493), 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 07:20:49,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 60.0) internal successors, (720), 12 states have internal predecessors, (720), 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 07:20:49,143 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 60.0) internal successors, (720), 12 states have internal predecessors, (720), 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 07:20:49,144 INFO L307 CegarLoopForPetriNet]: 55 programPoint places, 30 predicate places. [2023-11-30 07:20:49,144 INFO L500 AbstractCegarLoop]: Abstraction has has 85 places, 184 transitions, 1423 flow [2023-11-30 07:20:49,144 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 40.142857142857146) internal successors, (281), 7 states have internal predecessors, (281), 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 07:20:49,144 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:20:49,144 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] [2023-11-30 07:20:49,144 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 07:20:49,144 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:20:49,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:20:49,145 INFO L85 PathProgramCache]: Analyzing trace with hash -654438125, now seen corresponding path program 4 times [2023-11-30 07:20:49,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:20:49,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101616459] [2023-11-30 07:20:49,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:20:49,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:20:49,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:20:49,220 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 07:20:49,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:20:49,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101616459] [2023-11-30 07:20:49,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101616459] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:20:49,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:20:49,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 07:20:49,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991034613] [2023-11-30 07:20:49,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:20:49,221 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-30 07:20:49,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:20:49,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-30 07:20:49,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-30 07:20:49,222 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 60 [2023-11-30 07:20:49,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 184 transitions, 1423 flow. Second operand has 7 states, 7 states have (on average 40.142857142857146) internal successors, (281), 7 states have internal predecessors, (281), 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 07:20:49,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:20:49,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 60 [2023-11-30 07:20:49,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:20:49,405 INFO L124 PetriNetUnfolderBase]: 172/616 cut-off events. [2023-11-30 07:20:49,405 INFO L125 PetriNetUnfolderBase]: For 965/1124 co-relation queries the response was YES. [2023-11-30 07:20:49,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2218 conditions, 616 events. 172/616 cut-off events. For 965/1124 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3891 event pairs, 22 based on Foata normal form. 40/610 useless extension candidates. Maximal degree in co-relation 2162. Up to 230 conditions per place. [2023-11-30 07:20:49,408 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 81 selfloop transitions, 67 changer transitions 10/194 dead transitions. [2023-11-30 07:20:49,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 194 transitions, 1831 flow [2023-11-30 07:20:49,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 07:20:49,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 07:20:49,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 458 transitions. [2023-11-30 07:20:49,410 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7633333333333333 [2023-11-30 07:20:49,410 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 458 transitions. [2023-11-30 07:20:49,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 458 transitions. [2023-11-30 07:20:49,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:20:49,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 458 transitions. [2023-11-30 07:20:49,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 45.8) internal successors, (458), 10 states have internal predecessors, (458), 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 07:20:49,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 60.0) internal successors, (660), 11 states have internal predecessors, (660), 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 07:20:49,412 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 60.0) internal successors, (660), 11 states have internal predecessors, (660), 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 07:20:49,413 INFO L307 CegarLoopForPetriNet]: 55 programPoint places, 39 predicate places. [2023-11-30 07:20:49,413 INFO L500 AbstractCegarLoop]: Abstraction has has 94 places, 194 transitions, 1831 flow [2023-11-30 07:20:49,413 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 40.142857142857146) internal successors, (281), 7 states have internal predecessors, (281), 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 07:20:49,413 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:20:49,413 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] [2023-11-30 07:20:49,413 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 07:20:49,413 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:20:49,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:20:49,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1964004187, now seen corresponding path program 5 times [2023-11-30 07:20:49,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:20:49,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095397926] [2023-11-30 07:20:49,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:20:49,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:20:49,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:20:49,488 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 07:20:49,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:20:49,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095397926] [2023-11-30 07:20:49,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095397926] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:20:49,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:20:49,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 07:20:49,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089446373] [2023-11-30 07:20:49,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:20:49,489 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-30 07:20:49,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:20:49,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-30 07:20:49,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-30 07:20:49,490 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 60 [2023-11-30 07:20:49,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 194 transitions, 1831 flow. Second operand has 7 states, 7 states have (on average 40.142857142857146) internal successors, (281), 7 states have internal predecessors, (281), 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 07:20:49,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:20:49,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 60 [2023-11-30 07:20:49,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:20:49,688 INFO L124 PetriNetUnfolderBase]: 172/621 cut-off events. [2023-11-30 07:20:49,689 INFO L125 PetriNetUnfolderBase]: For 1542/1753 co-relation queries the response was YES. [2023-11-30 07:20:49,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2552 conditions, 621 events. 172/621 cut-off events. For 1542/1753 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3933 event pairs, 22 based on Foata normal form. 40/615 useless extension candidates. Maximal degree in co-relation 2488. Up to 232 conditions per place. [2023-11-30 07:20:49,692 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 69 selfloop transitions, 80 changer transitions 10/195 dead transitions. [2023-11-30 07:20:49,692 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 195 transitions, 2161 flow [2023-11-30 07:20:49,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 07:20:49,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 07:20:49,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 450 transitions. [2023-11-30 07:20:49,694 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.75 [2023-11-30 07:20:49,694 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 450 transitions. [2023-11-30 07:20:49,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 450 transitions. [2023-11-30 07:20:49,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:20:49,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 450 transitions. [2023-11-30 07:20:49,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 45.0) internal successors, (450), 10 states have internal predecessors, (450), 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 07:20:49,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 60.0) internal successors, (660), 11 states have internal predecessors, (660), 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 07:20:49,697 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 60.0) internal successors, (660), 11 states have internal predecessors, (660), 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 07:20:49,699 INFO L307 CegarLoopForPetriNet]: 55 programPoint places, 48 predicate places. [2023-11-30 07:20:49,699 INFO L500 AbstractCegarLoop]: Abstraction has has 103 places, 195 transitions, 2161 flow [2023-11-30 07:20:49,699 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 40.142857142857146) internal successors, (281), 7 states have internal predecessors, (281), 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 07:20:49,699 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:20:49,699 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] [2023-11-30 07:20:49,700 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-30 07:20:49,700 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:20:49,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:20:49,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1601428851, now seen corresponding path program 6 times [2023-11-30 07:20:49,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:20:49,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495148257] [2023-11-30 07:20:49,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:20:49,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:20:49,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:20:49,795 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 07:20:49,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:20:49,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495148257] [2023-11-30 07:20:49,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495148257] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:20:49,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:20:49,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 07:20:49,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590458461] [2023-11-30 07:20:49,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:20:49,798 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-30 07:20:49,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:20:49,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-30 07:20:49,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-30 07:20:49,799 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 60 [2023-11-30 07:20:49,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 195 transitions, 2161 flow. Second operand has 7 states, 7 states have (on average 40.142857142857146) internal successors, (281), 7 states have internal predecessors, (281), 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 07:20:49,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:20:49,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 60 [2023-11-30 07:20:49,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:20:49,976 INFO L124 PetriNetUnfolderBase]: 134/536 cut-off events. [2023-11-30 07:20:49,976 INFO L125 PetriNetUnfolderBase]: For 1830/2070 co-relation queries the response was YES. [2023-11-30 07:20:49,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2480 conditions, 536 events. 134/536 cut-off events. For 1830/2070 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3255 event pairs, 11 based on Foata normal form. 49/548 useless extension candidates. Maximal degree in co-relation 2408. Up to 190 conditions per place. [2023-11-30 07:20:49,979 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 77 selfloop transitions, 66 changer transitions 6/185 dead transitions. [2023-11-30 07:20:49,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 185 transitions, 2319 flow [2023-11-30 07:20:49,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 07:20:49,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 07:20:49,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 449 transitions. [2023-11-30 07:20:49,980 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7483333333333333 [2023-11-30 07:20:49,980 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 449 transitions. [2023-11-30 07:20:49,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 449 transitions. [2023-11-30 07:20:49,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:20:49,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 449 transitions. [2023-11-30 07:20:49,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 44.9) internal successors, (449), 10 states have internal predecessors, (449), 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 07:20:49,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 60.0) internal successors, (660), 11 states have internal predecessors, (660), 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 07:20:49,982 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 60.0) internal successors, (660), 11 states have internal predecessors, (660), 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 07:20:49,983 INFO L307 CegarLoopForPetriNet]: 55 programPoint places, 57 predicate places. [2023-11-30 07:20:49,983 INFO L500 AbstractCegarLoop]: Abstraction has has 112 places, 185 transitions, 2319 flow [2023-11-30 07:20:49,983 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 40.142857142857146) internal successors, (281), 7 states have internal predecessors, (281), 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 07:20:49,983 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:20:49,983 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] [2023-11-30 07:20:49,983 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 07:20:49,983 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:20:49,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:20:49,984 INFO L85 PathProgramCache]: Analyzing trace with hash 945595217, now seen corresponding path program 7 times [2023-11-30 07:20:49,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:20:49,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513529587] [2023-11-30 07:20:49,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:20:49,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:20:50,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:20:50,276 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 07:20:50,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:20:50,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513529587] [2023-11-30 07:20:50,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513529587] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:20:50,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:20:50,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 07:20:50,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110807883] [2023-11-30 07:20:50,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:20:50,277 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-30 07:20:50,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:20:50,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-30 07:20:50,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-30 07:20:50,278 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 60 [2023-11-30 07:20:50,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 185 transitions, 2319 flow. Second operand has 7 states, 7 states have (on average 40.142857142857146) internal successors, (281), 7 states have internal predecessors, (281), 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 07:20:50,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:20:50,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 60 [2023-11-30 07:20:50,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:20:50,628 INFO L124 PetriNetUnfolderBase]: 187/689 cut-off events. [2023-11-30 07:20:50,629 INFO L125 PetriNetUnfolderBase]: For 3433/3770 co-relation queries the response was YES. [2023-11-30 07:20:50,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3507 conditions, 689 events. 187/689 cut-off events. For 3433/3770 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4559 event pairs, 22 based on Foata normal form. 20/660 useless extension candidates. Maximal degree in co-relation 3427. Up to 258 conditions per place. [2023-11-30 07:20:50,633 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 97 selfloop transitions, 73 changer transitions 9/215 dead transitions. [2023-11-30 07:20:50,633 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 215 transitions, 3135 flow [2023-11-30 07:20:50,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-30 07:20:50,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-30 07:20:50,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 492 transitions. [2023-11-30 07:20:50,635 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7454545454545455 [2023-11-30 07:20:50,635 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 492 transitions. [2023-11-30 07:20:50,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 492 transitions. [2023-11-30 07:20:50,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:20:50,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 492 transitions. [2023-11-30 07:20:50,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 44.72727272727273) internal successors, (492), 11 states have internal predecessors, (492), 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 07:20:50,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 60.0) internal successors, (720), 12 states have internal predecessors, (720), 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 07:20:50,638 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 60.0) internal successors, (720), 12 states have internal predecessors, (720), 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 07:20:50,640 INFO L307 CegarLoopForPetriNet]: 55 programPoint places, 67 predicate places. [2023-11-30 07:20:50,640 INFO L500 AbstractCegarLoop]: Abstraction has has 122 places, 215 transitions, 3135 flow [2023-11-30 07:20:50,640 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 40.142857142857146) internal successors, (281), 7 states have internal predecessors, (281), 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 07:20:50,640 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:20:50,641 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] [2023-11-30 07:20:50,641 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-30 07:20:50,641 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:20:50,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:20:50,642 INFO L85 PathProgramCache]: Analyzing trace with hash 628465665, now seen corresponding path program 8 times [2023-11-30 07:20:50,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:20:50,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252576164] [2023-11-30 07:20:50,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:20:50,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:20:50,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:20:50,715 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 07:20:50,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:20:50,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252576164] [2023-11-30 07:20:50,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252576164] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:20:50,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:20:50,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 07:20:50,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825619203] [2023-11-30 07:20:50,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:20:50,716 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-30 07:20:50,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:20:50,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-30 07:20:50,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-30 07:20:50,717 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 60 [2023-11-30 07:20:50,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 215 transitions, 3135 flow. Second operand has 7 states, 7 states have (on average 40.142857142857146) internal successors, (281), 7 states have internal predecessors, (281), 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 07:20:50,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:20:50,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 60 [2023-11-30 07:20:50,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:20:50,916 INFO L124 PetriNetUnfolderBase]: 193/713 cut-off events. [2023-11-30 07:20:50,916 INFO L125 PetriNetUnfolderBase]: For 4960/5444 co-relation queries the response was YES. [2023-11-30 07:20:50,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4008 conditions, 713 events. 193/713 cut-off events. For 4960/5444 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4791 event pairs, 22 based on Foata normal form. 50/709 useless extension candidates. Maximal degree in co-relation 3920. Up to 273 conditions per place. [2023-11-30 07:20:50,920 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 105 selfloop transitions, 75 changer transitions 9/225 dead transitions. [2023-11-30 07:20:50,920 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 225 transitions, 3685 flow [2023-11-30 07:20:50,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-30 07:20:50,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-30 07:20:50,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 495 transitions. [2023-11-30 07:20:50,922 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.75 [2023-11-30 07:20:50,922 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 495 transitions. [2023-11-30 07:20:50,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 495 transitions. [2023-11-30 07:20:50,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:20:50,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 495 transitions. [2023-11-30 07:20:50,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 45.0) internal successors, (495), 11 states have internal predecessors, (495), 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 07:20:50,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 60.0) internal successors, (720), 12 states have internal predecessors, (720), 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 07:20:50,924 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 60.0) internal successors, (720), 12 states have internal predecessors, (720), 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 07:20:50,925 INFO L307 CegarLoopForPetriNet]: 55 programPoint places, 77 predicate places. [2023-11-30 07:20:50,925 INFO L500 AbstractCegarLoop]: Abstraction has has 132 places, 225 transitions, 3685 flow [2023-11-30 07:20:50,925 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 40.142857142857146) internal successors, (281), 7 states have internal predecessors, (281), 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 07:20:50,925 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:20:50,925 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] [2023-11-30 07:20:50,926 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-30 07:20:50,926 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:20:50,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:20:50,926 INFO L85 PathProgramCache]: Analyzing trace with hash 423117219, now seen corresponding path program 9 times [2023-11-30 07:20:50,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:20:50,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108447421] [2023-11-30 07:20:50,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:20:50,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:20:50,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:20:51,004 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 07:20:51,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:20:51,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108447421] [2023-11-30 07:20:51,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108447421] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:20:51,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:20:51,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 07:20:51,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654887471] [2023-11-30 07:20:51,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:20:51,006 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-30 07:20:51,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:20:51,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-30 07:20:51,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-30 07:20:51,007 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 60 [2023-11-30 07:20:51,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 225 transitions, 3685 flow. Second operand has 7 states, 7 states have (on average 40.142857142857146) internal successors, (281), 7 states have internal predecessors, (281), 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 07:20:51,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:20:51,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 60 [2023-11-30 07:20:51,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:20:51,192 INFO L124 PetriNetUnfolderBase]: 192/716 cut-off events. [2023-11-30 07:20:51,192 INFO L125 PetriNetUnfolderBase]: For 6247/6798 co-relation queries the response was YES. [2023-11-30 07:20:51,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4379 conditions, 716 events. 192/716 cut-off events. For 6247/6798 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4841 event pairs, 22 based on Foata normal form. 58/720 useless extension candidates. Maximal degree in co-relation 4283. Up to 275 conditions per place. [2023-11-30 07:20:51,197 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 87 selfloop transitions, 94 changer transitions 9/226 dead transitions. [2023-11-30 07:20:51,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 226 transitions, 4085 flow [2023-11-30 07:20:51,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 07:20:51,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 07:20:51,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 448 transitions. [2023-11-30 07:20:51,198 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7466666666666667 [2023-11-30 07:20:51,198 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 448 transitions. [2023-11-30 07:20:51,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 448 transitions. [2023-11-30 07:20:51,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:20:51,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 448 transitions. [2023-11-30 07:20:51,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 44.8) internal successors, (448), 10 states have internal predecessors, (448), 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 07:20:51,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 60.0) internal successors, (660), 11 states have internal predecessors, (660), 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 07:20:51,200 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 60.0) internal successors, (660), 11 states have internal predecessors, (660), 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 07:20:51,200 INFO L307 CegarLoopForPetriNet]: 55 programPoint places, 86 predicate places. [2023-11-30 07:20:51,201 INFO L500 AbstractCegarLoop]: Abstraction has has 141 places, 226 transitions, 4085 flow [2023-11-30 07:20:51,201 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 40.142857142857146) internal successors, (281), 7 states have internal predecessors, (281), 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 07:20:51,201 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:20:51,201 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] [2023-11-30 07:20:51,201 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-30 07:20:51,201 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:20:51,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:20:51,201 INFO L85 PathProgramCache]: Analyzing trace with hash -2039806017, now seen corresponding path program 10 times [2023-11-30 07:20:51,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:20:51,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874663601] [2023-11-30 07:20:51,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:20:51,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:20:51,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:20:51,268 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 07:20:51,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:20:51,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874663601] [2023-11-30 07:20:51,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874663601] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:20:51,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:20:51,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 07:20:51,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748240654] [2023-11-30 07:20:51,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:20:51,270 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-30 07:20:51,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:20:51,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-30 07:20:51,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-30 07:20:51,270 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 60 [2023-11-30 07:20:51,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 226 transitions, 4085 flow. Second operand has 7 states, 7 states have (on average 40.142857142857146) internal successors, (281), 7 states have internal predecessors, (281), 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 07:20:51,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:20:51,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 60 [2023-11-30 07:20:51,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:20:51,460 INFO L124 PetriNetUnfolderBase]: 155/628 cut-off events. [2023-11-30 07:20:51,460 INFO L125 PetriNetUnfolderBase]: For 6092/6501 co-relation queries the response was YES. [2023-11-30 07:20:51,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4224 conditions, 628 events. 155/628 cut-off events. For 6092/6501 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 4109 event pairs, 11 based on Foata normal form. 70/652 useless extension candidates. Maximal degree in co-relation 4120. Up to 232 conditions per place. [2023-11-30 07:20:51,465 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 98 selfloop transitions, 77 changer transitions 6/217 dead transitions. [2023-11-30 07:20:51,465 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 217 transitions, 4249 flow [2023-11-30 07:20:51,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 07:20:51,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 07:20:51,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 449 transitions. [2023-11-30 07:20:51,466 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7483333333333333 [2023-11-30 07:20:51,467 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 449 transitions. [2023-11-30 07:20:51,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 449 transitions. [2023-11-30 07:20:51,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:20:51,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 449 transitions. [2023-11-30 07:20:51,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 44.9) internal successors, (449), 10 states have internal predecessors, (449), 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 07:20:51,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 60.0) internal successors, (660), 11 states have internal predecessors, (660), 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 07:20:51,469 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 60.0) internal successors, (660), 11 states have internal predecessors, (660), 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 07:20:51,469 INFO L307 CegarLoopForPetriNet]: 55 programPoint places, 95 predicate places. [2023-11-30 07:20:51,469 INFO L500 AbstractCegarLoop]: Abstraction has has 150 places, 217 transitions, 4249 flow [2023-11-30 07:20:51,469 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 40.142857142857146) internal successors, (281), 7 states have internal predecessors, (281), 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 07:20:51,469 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:20:51,470 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] [2023-11-30 07:20:51,470 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-30 07:20:51,470 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:20:51,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:20:51,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1912580653, now seen corresponding path program 11 times [2023-11-30 07:20:51,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:20:51,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382336609] [2023-11-30 07:20:51,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:20:51,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:20:51,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:20:51,571 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 07:20:51,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:20:51,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382336609] [2023-11-30 07:20:51,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382336609] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:20:51,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:20:51,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 07:20:51,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877884893] [2023-11-30 07:20:51,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:20:51,573 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-30 07:20:51,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:20:51,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-30 07:20:51,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-30 07:20:51,573 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 60 [2023-11-30 07:20:51,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 217 transitions, 4249 flow. Second operand has 7 states, 7 states have (on average 40.142857142857146) internal successors, (281), 7 states have internal predecessors, (281), 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 07:20:51,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:20:51,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 60 [2023-11-30 07:20:51,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:20:51,766 INFO L124 PetriNetUnfolderBase]: 155/637 cut-off events. [2023-11-30 07:20:51,766 INFO L125 PetriNetUnfolderBase]: For 7363/7783 co-relation queries the response was YES. [2023-11-30 07:20:51,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4597 conditions, 637 events. 155/637 cut-off events. For 7363/7783 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 4207 event pairs, 11 based on Foata normal form. 45/636 useless extension candidates. Maximal degree in co-relation 4485. Up to 234 conditions per place. [2023-11-30 07:20:51,771 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 88 selfloop transitions, 88 changer transitions 6/218 dead transitions. [2023-11-30 07:20:51,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 218 transitions, 4637 flow [2023-11-30 07:20:51,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-30 07:20:51,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-30 07:20:51,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 481 transitions. [2023-11-30 07:20:51,773 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7287878787878788 [2023-11-30 07:20:51,773 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 481 transitions. [2023-11-30 07:20:51,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 481 transitions. [2023-11-30 07:20:51,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:20:51,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 481 transitions. [2023-11-30 07:20:51,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 43.72727272727273) internal successors, (481), 11 states have internal predecessors, (481), 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 07:20:51,775 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 60.0) internal successors, (720), 12 states have internal predecessors, (720), 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 07:20:51,775 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 60.0) internal successors, (720), 12 states have internal predecessors, (720), 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 07:20:51,775 INFO L307 CegarLoopForPetriNet]: 55 programPoint places, 105 predicate places. [2023-11-30 07:20:51,775 INFO L500 AbstractCegarLoop]: Abstraction has has 160 places, 218 transitions, 4637 flow [2023-11-30 07:20:51,776 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 40.142857142857146) internal successors, (281), 7 states have internal predecessors, (281), 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 07:20:51,776 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:20:51,776 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] [2023-11-30 07:20:51,776 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-30 07:20:51,776 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:20:51,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:20:51,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1652793795, now seen corresponding path program 12 times [2023-11-30 07:20:51,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:20:51,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674067551] [2023-11-30 07:20:51,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:20:51,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:20:51,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:20:51,851 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 07:20:51,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:20:51,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674067551] [2023-11-30 07:20:51,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674067551] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:20:51,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:20:51,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 07:20:51,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956627498] [2023-11-30 07:20:51,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:20:51,852 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-30 07:20:51,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:20:51,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-30 07:20:51,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-30 07:20:51,853 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 60 [2023-11-30 07:20:51,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 218 transitions, 4637 flow. Second operand has 7 states, 7 states have (on average 40.142857142857146) internal successors, (281), 7 states have internal predecessors, (281), 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 07:20:51,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:20:51,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 60 [2023-11-30 07:20:51,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:20:52,030 INFO L124 PetriNetUnfolderBase]: 123/530 cut-off events. [2023-11-30 07:20:52,031 INFO L125 PetriNetUnfolderBase]: For 6528/6837 co-relation queries the response was YES. [2023-11-30 07:20:52,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4228 conditions, 530 events. 123/530 cut-off events. For 6528/6837 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3292 event pairs, 0 based on Foata normal form. 43/535 useless extension candidates. Maximal degree in co-relation 4108. Up to 188 conditions per place. [2023-11-30 07:20:52,035 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 85 selfloop transitions, 85 changer transitions 0/206 dead transitions. [2023-11-30 07:20:52,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 206 transitions, 4665 flow [2023-11-30 07:20:52,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 07:20:52,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 07:20:52,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 401 transitions. [2023-11-30 07:20:52,036 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7425925925925926 [2023-11-30 07:20:52,036 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 401 transitions. [2023-11-30 07:20:52,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 401 transitions. [2023-11-30 07:20:52,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:20:52,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 401 transitions. [2023-11-30 07:20:52,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 44.55555555555556) internal successors, (401), 9 states have internal predecessors, (401), 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 07:20:52,038 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 60.0) internal successors, (600), 10 states have internal predecessors, (600), 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 07:20:52,038 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 60.0) internal successors, (600), 10 states have internal predecessors, (600), 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 07:20:52,039 INFO L307 CegarLoopForPetriNet]: 55 programPoint places, 112 predicate places. [2023-11-30 07:20:52,039 INFO L500 AbstractCegarLoop]: Abstraction has has 167 places, 206 transitions, 4665 flow [2023-11-30 07:20:52,039 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 40.142857142857146) internal successors, (281), 7 states have internal predecessors, (281), 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 07:20:52,039 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:20:52,039 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] [2023-11-30 07:20:52,040 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-30 07:20:52,040 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:20:52,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:20:52,040 INFO L85 PathProgramCache]: Analyzing trace with hash -740760794, now seen corresponding path program 1 times [2023-11-30 07:20:52,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:20:52,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062592683] [2023-11-30 07:20:52,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:20:52,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:20:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:20:52,078 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 07:20:52,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:20:52,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062592683] [2023-11-30 07:20:52,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062592683] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:20:52,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:20:52,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:20:52,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503498109] [2023-11-30 07:20:52,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:20:52,079 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:20:52,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:20:52,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:20:52,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:20:52,080 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 60 [2023-11-30 07:20:52,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 206 transitions, 4665 flow. Second operand has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 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 07:20:52,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:20:52,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 60 [2023-11-30 07:20:52,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:20:52,157 INFO L124 PetriNetUnfolderBase]: 123/512 cut-off events. [2023-11-30 07:20:52,158 INFO L125 PetriNetUnfolderBase]: For 6161/6425 co-relation queries the response was YES. [2023-11-30 07:20:52,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4436 conditions, 512 events. 123/512 cut-off events. For 6161/6425 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3097 event pairs, 0 based on Foata normal form. 5/497 useless extension candidates. Maximal degree in co-relation 4313. Up to 170 conditions per place. [2023-11-30 07:20:52,161 INFO L140 encePairwiseOnDemand]: 55/60 looper letters, 80 selfloop transitions, 3 changer transitions 0/204 dead transitions. [2023-11-30 07:20:52,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 204 transitions, 4823 flow [2023-11-30 07:20:52,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 07:20:52,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 07:20:52,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 196 transitions. [2023-11-30 07:20:52,163 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8166666666666667 [2023-11-30 07:20:52,163 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 196 transitions. [2023-11-30 07:20:52,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 196 transitions. [2023-11-30 07:20:52,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:20:52,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 196 transitions. [2023-11-30 07:20:52,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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 07:20:52,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 60.0) internal successors, (300), 5 states have internal predecessors, (300), 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 07:20:52,165 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 60.0) internal successors, (300), 5 states have internal predecessors, (300), 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 07:20:52,166 INFO L307 CegarLoopForPetriNet]: 55 programPoint places, 113 predicate places. [2023-11-30 07:20:52,166 INFO L500 AbstractCegarLoop]: Abstraction has has 168 places, 204 transitions, 4823 flow [2023-11-30 07:20:52,166 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 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 07:20:52,166 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:20:52,166 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] [2023-11-30 07:20:52,166 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-30 07:20:52,166 INFO L425 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:20:52,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:20:52,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1488748001, now seen corresponding path program 1 times [2023-11-30 07:20:52,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:20:52,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638843364] [2023-11-30 07:20:52,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:20:52,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:20:52,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:20:52,205 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 07:20:52,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:20:52,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638843364] [2023-11-30 07:20:52,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638843364] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:20:52,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:20:52,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:20:52,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467898478] [2023-11-30 07:20:52,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:20:52,206 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:20:52,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:20:52,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:20:52,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:20:52,207 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 60 [2023-11-30 07:20:52,207 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 204 transitions, 4823 flow. Second operand has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 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 07:20:52,207 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:20:52,207 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 60 [2023-11-30 07:20:52,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:20:52,277 INFO L124 PetriNetUnfolderBase]: 123/494 cut-off events. [2023-11-30 07:20:52,278 INFO L125 PetriNetUnfolderBase]: For 6355/6619 co-relation queries the response was YES. [2023-11-30 07:20:52,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4608 conditions, 494 events. 123/494 cut-off events. For 6355/6619 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2912 event pairs, 0 based on Foata normal form. 5/497 useless extension candidates. Maximal degree in co-relation 4482. Up to 152 conditions per place. [2023-11-30 07:20:52,280 INFO L140 encePairwiseOnDemand]: 55/60 looper letters, 0 selfloop transitions, 0 changer transitions 222/222 dead transitions. [2023-11-30 07:20:52,280 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 222 transitions, 5613 flow [2023-11-30 07:20:52,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 07:20:52,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 07:20:52,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 196 transitions. [2023-11-30 07:20:52,281 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8166666666666667 [2023-11-30 07:20:52,281 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 196 transitions. [2023-11-30 07:20:52,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 196 transitions. [2023-11-30 07:20:52,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:20:52,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 196 transitions. [2023-11-30 07:20:52,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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 07:20:52,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 60.0) internal successors, (300), 5 states have internal predecessors, (300), 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 07:20:52,282 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 60.0) internal successors, (300), 5 states have internal predecessors, (300), 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 07:20:52,283 INFO L307 CegarLoopForPetriNet]: 55 programPoint places, 114 predicate places. [2023-11-30 07:20:52,283 INFO L500 AbstractCegarLoop]: Abstraction has has 169 places, 222 transitions, 5613 flow [2023-11-30 07:20:52,283 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 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 07:20:52,287 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/04-mutex_04-munge_nr.i_BEv2_AllErrorsAtOnce [2023-11-30 07:20:52,339 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2023-11-30 07:20:52,339 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2023-11-30 07:20:52,339 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-11-30 07:20:52,340 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2023-11-30 07:20:52,340 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2023-11-30 07:20:52,340 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2023-11-30 07:20:52,340 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2023-11-30 07:20:52,340 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-30 07:20:52,340 INFO L457 BasicCegarLoop]: Path program histogram: [12, 1, 1, 1] [2023-11-30 07:20:52,344 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 07:20:52,344 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 07:20:52,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 07:20:52 BasicIcfg [2023-11-30 07:20:52,350 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 07:20:52,350 INFO L158 Benchmark]: Toolchain (without parser) took 5802.19ms. Allocated memory was 354.4MB in the beginning and 767.6MB in the end (delta: 413.1MB). Free memory was 289.6MB in the beginning and 461.9MB in the end (delta: -172.4MB). Peak memory consumption was 244.1MB. Max. memory is 16.0GB. [2023-11-30 07:20:52,350 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 354.4MB. Free memory is still 303.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 07:20:52,350 INFO L158 Benchmark]: CACSL2BoogieTranslator took 386.20ms. Allocated memory was 354.4MB in the beginning and 591.4MB in the end (delta: 237.0MB). Free memory was 289.3MB in the beginning and 548.5MB in the end (delta: -259.3MB). Peak memory consumption was 27.4MB. Max. memory is 16.0GB. [2023-11-30 07:20:52,350 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.56ms. Allocated memory is still 591.4MB. Free memory was 548.5MB in the beginning and 546.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 07:20:52,351 INFO L158 Benchmark]: Boogie Preprocessor took 25.58ms. Allocated memory is still 591.4MB. Free memory was 546.4MB in the beginning and 544.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 07:20:52,351 INFO L158 Benchmark]: RCFGBuilder took 312.08ms. Allocated memory is still 591.4MB. Free memory was 544.8MB in the beginning and 531.0MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-11-30 07:20:52,351 INFO L158 Benchmark]: TraceAbstraction took 5025.52ms. Allocated memory was 591.4MB in the beginning and 767.6MB in the end (delta: 176.2MB). Free memory was 530.2MB in the beginning and 461.9MB in the end (delta: 68.2MB). Peak memory consumption was 246.0MB. Max. memory is 16.0GB. [2023-11-30 07:20:52,352 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 354.4MB. Free memory is still 303.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 386.20ms. Allocated memory was 354.4MB in the beginning and 591.4MB in the end (delta: 237.0MB). Free memory was 289.3MB in the beginning and 548.5MB in the end (delta: -259.3MB). Peak memory consumption was 27.4MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 46.56ms. Allocated memory is still 591.4MB. Free memory was 548.5MB in the beginning and 546.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 25.58ms. Allocated memory is still 591.4MB. Free memory was 546.4MB in the beginning and 544.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 312.08ms. Allocated memory is still 591.4MB. Free memory was 544.8MB in the beginning and 531.0MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 5025.52ms. Allocated memory was 591.4MB in the beginning and 767.6MB in the end (delta: 176.2MB). Free memory was 530.2MB in the beginning and 461.9MB in the end (delta: 68.2MB). Peak memory consumption was 246.0MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 921]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 921]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 921]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 921]: 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 3 procedures, 80 locations, 7 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: 4.9s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 12, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 557 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 557 mSDsluCounter, 1306 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 880 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1784 IncrementalHoareTripleChecker+Invalid, 1833 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 426 mSDtfsCounter, 1784 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 172 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5613occurred in iteration=15, InterpolantAutomatonStates: 134, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 503 NumberOfCodeBlocks, 503 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 488 ConstructedInterpolants, 0 QuantifiedInterpolants, 1380 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 07:20:52,367 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...