/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 08:32:16,162 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 08:32:16,209 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 08:32:16,228 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 08:32:16,229 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 08:32:16,229 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 08:32:16,230 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 08:32:16,230 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 08:32:16,230 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 08:32:16,230 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 08:32:16,231 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 08:32:16,231 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 08:32:16,231 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 08:32:16,232 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 08:32:16,232 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 08:32:16,232 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 08:32:16,233 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 08:32:16,233 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 08:32:16,233 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 08:32:16,234 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 08:32:16,234 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 08:32:16,236 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 08:32:16,237 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 08:32:16,237 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 08:32:16,237 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 08:32:16,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 08:32:16,238 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 08:32:16,238 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 08:32:16,238 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 08:32:16,239 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 08:32:16,239 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 08:32:16,239 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 08:32:16,240 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 08:32:16,247 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 08:32:16,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 08:32:16,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 08:32:16,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 08:32:16,451 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 08:32:16,451 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 08:32:16,452 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2023-11-30 08:32:17,600 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 08:32:17,783 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 08:32:17,784 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2023-11-30 08:32:17,789 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f26ba27f/66db02091bd843a3bc3f47c52f415e24/FLAGa37558a5a [2023-11-30 08:32:17,800 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f26ba27f/66db02091bd843a3bc3f47c52f415e24 [2023-11-30 08:32:17,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 08:32:17,803 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 08:32:17,804 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 08:32:17,804 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 08:32:17,809 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 08:32:17,809 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 08:32:17" (1/1) ... [2023-11-30 08:32:17,810 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d139287 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:32:17, skipping insertion in model container [2023-11-30 08:32:17,810 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 08:32:17" (1/1) ... [2023-11-30 08:32:17,830 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 08:32:17,986 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 08:32:17,993 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 08:32:18,012 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 08:32:18,024 INFO L206 MainTranslator]: Completed translation [2023-11-30 08:32:18,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:32:18 WrapperNode [2023-11-30 08:32:18,024 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 08:32:18,025 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 08:32:18,025 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 08:32:18,025 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 08:32:18,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:32:18" (1/1) ... [2023-11-30 08:32:18,036 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:32:18" (1/1) ... [2023-11-30 08:32:18,057 INFO L138 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 163 [2023-11-30 08:32:18,058 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 08:32:18,058 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 08:32:18,058 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 08:32:18,059 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 08:32:18,065 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:32:18" (1/1) ... [2023-11-30 08:32:18,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:32:18" (1/1) ... [2023-11-30 08:32:18,068 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:32:18" (1/1) ... [2023-11-30 08:32:18,068 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:32:18" (1/1) ... [2023-11-30 08:32:18,074 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:32:18" (1/1) ... [2023-11-30 08:32:18,076 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:32:18" (1/1) ... [2023-11-30 08:32:18,077 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:32:18" (1/1) ... [2023-11-30 08:32:18,078 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:32:18" (1/1) ... [2023-11-30 08:32:18,087 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 08:32:18,088 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 08:32:18,088 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 08:32:18,088 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 08:32:18,089 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:32:18" (1/1) ... [2023-11-30 08:32:18,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 08:32:18,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:32:18,113 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 08:32:18,119 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 08:32:18,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 08:32:18,137 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-30 08:32:18,137 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-30 08:32:18,137 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-30 08:32:18,137 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-30 08:32:18,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 08:32:18,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 08:32:18,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 08:32:18,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 08:32:18,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 08:32:18,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 08:32:18,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 08:32:18,140 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 08:32:18,217 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 08:32:18,218 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 08:32:18,521 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 08:32:18,533 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 08:32:18,533 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-30 08:32:18,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 08:32:18 BoogieIcfgContainer [2023-11-30 08:32:18,534 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 08:32:18,536 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 08:32:18,537 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 08:32:18,539 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 08:32:18,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 08:32:17" (1/3) ... [2023-11-30 08:32:18,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f6bb1c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 08:32:18, skipping insertion in model container [2023-11-30 08:32:18,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:32:18" (2/3) ... [2023-11-30 08:32:18,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f6bb1c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 08:32:18, skipping insertion in model container [2023-11-30 08:32:18,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 08:32:18" (3/3) ... [2023-11-30 08:32:18,541 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-exp-term-symm.wvr.c [2023-11-30 08:32:18,554 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 08:32:18,554 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-11-30 08:32:18,554 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 08:32:18,689 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-30 08:32:18,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 212 places, 222 transitions, 458 flow [2023-11-30 08:32:18,820 INFO L124 PetriNetUnfolderBase]: 17/220 cut-off events. [2023-11-30 08:32:18,820 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-30 08:32:18,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 220 events. 17/220 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 465 event pairs, 0 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 147. Up to 2 conditions per place. [2023-11-30 08:32:18,828 INFO L82 GeneralOperation]: Start removeDead. Operand has 212 places, 222 transitions, 458 flow [2023-11-30 08:32:18,833 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 175 places, 182 transitions, 373 flow [2023-11-30 08:32:18,841 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 08:32:18,848 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;@315af2dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 08:32:18,848 INFO L363 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-11-30 08:32:18,875 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 08:32:18,876 INFO L124 PetriNetUnfolderBase]: 4/87 cut-off events. [2023-11-30 08:32:18,884 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-30 08:32:18,884 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:32:18,885 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:32:18,886 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:32:18,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:32:18,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1164672341, now seen corresponding path program 1 times [2023-11-30 08:32:18,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:32:18,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051392769] [2023-11-30 08:32:18,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:32:18,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:32:19,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:32:19,201 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 08:32:19,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:32:19,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051392769] [2023-11-30 08:32:19,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051392769] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:32:19,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:32:19,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:32:19,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910688069] [2023-11-30 08:32:19,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:32:19,210 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:32:19,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:32:19,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:32:19,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:32:19,272 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 222 [2023-11-30 08:32:19,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 182 transitions, 373 flow. Second operand has 4 states, 4 states have (on average 187.5) internal successors, (750), 4 states have internal predecessors, (750), 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 08:32:19,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:32:19,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 222 [2023-11-30 08:32:19,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:32:19,646 INFO L124 PetriNetUnfolderBase]: 56/455 cut-off events. [2023-11-30 08:32:19,646 INFO L125 PetriNetUnfolderBase]: For 39/40 co-relation queries the response was YES. [2023-11-30 08:32:19,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 630 conditions, 455 events. 56/455 cut-off events. For 39/40 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2421 event pairs, 13 based on Foata normal form. 31/415 useless extension candidates. Maximal degree in co-relation 581. Up to 48 conditions per place. [2023-11-30 08:32:19,667 INFO L140 encePairwiseOnDemand]: 210/222 looper letters, 34 selfloop transitions, 5 changer transitions 0/190 dead transitions. [2023-11-30 08:32:19,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 190 transitions, 473 flow [2023-11-30 08:32:19,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:32:19,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:32:19,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 796 transitions. [2023-11-30 08:32:19,694 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8963963963963963 [2023-11-30 08:32:19,695 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 796 transitions. [2023-11-30 08:32:19,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 796 transitions. [2023-11-30 08:32:19,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:32:19,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 796 transitions. [2023-11-30 08:32:19,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 199.0) internal successors, (796), 4 states have internal predecessors, (796), 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 08:32:19,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 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 08:32:19,720 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 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 08:32:19,724 INFO L307 CegarLoopForPetriNet]: 175 programPoint places, 2 predicate places. [2023-11-30 08:32:19,724 INFO L500 AbstractCegarLoop]: Abstraction has has 177 places, 190 transitions, 473 flow [2023-11-30 08:32:19,725 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 187.5) internal successors, (750), 4 states have internal predecessors, (750), 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 08:32:19,725 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:32:19,725 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:32:19,726 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 08:32:19,726 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:32:19,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:32:19,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1745104778, now seen corresponding path program 1 times [2023-11-30 08:32:19,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:32:19,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527282778] [2023-11-30 08:32:19,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:32:19,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:32:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:32:20,106 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 08:32:20,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:32:20,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527282778] [2023-11-30 08:32:20,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527282778] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:32:20,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:32:20,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:32:20,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181521627] [2023-11-30 08:32:20,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:32:20,108 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:32:20,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:32:20,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:32:20,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:32:20,111 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 222 [2023-11-30 08:32:20,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 190 transitions, 473 flow. Second operand has 6 states, 6 states have (on average 178.33333333333334) internal successors, (1070), 6 states have internal predecessors, (1070), 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 08:32:20,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:32:20,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 222 [2023-11-30 08:32:20,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:32:20,378 INFO L124 PetriNetUnfolderBase]: 156/698 cut-off events. [2023-11-30 08:32:20,379 INFO L125 PetriNetUnfolderBase]: For 124/124 co-relation queries the response was YES. [2023-11-30 08:32:20,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1275 conditions, 698 events. 156/698 cut-off events. For 124/124 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4309 event pairs, 15 based on Foata normal form. 0/572 useless extension candidates. Maximal degree in co-relation 1196. Up to 214 conditions per place. [2023-11-30 08:32:20,388 INFO L140 encePairwiseOnDemand]: 214/222 looper letters, 45 selfloop transitions, 8 changer transitions 0/197 dead transitions. [2023-11-30 08:32:20,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 197 transitions, 601 flow [2023-11-30 08:32:20,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 08:32:20,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 08:32:20,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1099 transitions. [2023-11-30 08:32:20,395 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.825075075075075 [2023-11-30 08:32:20,396 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1099 transitions. [2023-11-30 08:32:20,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1099 transitions. [2023-11-30 08:32:20,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:32:20,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1099 transitions. [2023-11-30 08:32:20,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 183.16666666666666) internal successors, (1099), 6 states have internal predecessors, (1099), 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 08:32:20,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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 08:32:20,403 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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 08:32:20,404 INFO L307 CegarLoopForPetriNet]: 175 programPoint places, 6 predicate places. [2023-11-30 08:32:20,404 INFO L500 AbstractCegarLoop]: Abstraction has has 181 places, 197 transitions, 601 flow [2023-11-30 08:32:20,405 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 178.33333333333334) internal successors, (1070), 6 states have internal predecessors, (1070), 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 08:32:20,405 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:32:20,405 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:32:20,405 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 08:32:20,406 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:32:20,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:32:20,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1641254089, now seen corresponding path program 1 times [2023-11-30 08:32:20,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:32:20,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600959645] [2023-11-30 08:32:20,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:32:20,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:32:20,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:32:20,525 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 08:32:20,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:32:20,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600959645] [2023-11-30 08:32:20,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600959645] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:32:20,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:32:20,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:32:20,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861445800] [2023-11-30 08:32:20,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:32:20,529 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:32:20,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:32:20,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:32:20,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:32:20,533 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 222 [2023-11-30 08:32:20,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 197 transitions, 601 flow. Second operand has 4 states, 4 states have (on average 187.75) internal successors, (751), 4 states have internal predecessors, (751), 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 08:32:20,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:32:20,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 222 [2023-11-30 08:32:20,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:32:20,707 INFO L124 PetriNetUnfolderBase]: 191/837 cut-off events. [2023-11-30 08:32:20,708 INFO L125 PetriNetUnfolderBase]: For 786/1131 co-relation queries the response was YES. [2023-11-30 08:32:20,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1647 conditions, 837 events. 191/837 cut-off events. For 786/1131 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 5844 event pairs, 28 based on Foata normal form. 0/685 useless extension candidates. Maximal degree in co-relation 1292. Up to 214 conditions per place. [2023-11-30 08:32:20,717 INFO L140 encePairwiseOnDemand]: 214/222 looper letters, 38 selfloop transitions, 5 changer transitions 0/209 dead transitions. [2023-11-30 08:32:20,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 209 transitions, 725 flow [2023-11-30 08:32:20,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:32:20,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:32:20,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 786 transitions. [2023-11-30 08:32:20,724 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8851351351351351 [2023-11-30 08:32:20,724 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 786 transitions. [2023-11-30 08:32:20,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 786 transitions. [2023-11-30 08:32:20,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:32:20,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 786 transitions. [2023-11-30 08:32:20,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 196.5) internal successors, (786), 4 states have internal predecessors, (786), 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 08:32:20,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 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 08:32:20,730 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 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 08:32:20,731 INFO L307 CegarLoopForPetriNet]: 175 programPoint places, 8 predicate places. [2023-11-30 08:32:20,731 INFO L500 AbstractCegarLoop]: Abstraction has has 183 places, 209 transitions, 725 flow [2023-11-30 08:32:20,732 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 187.75) internal successors, (751), 4 states have internal predecessors, (751), 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 08:32:20,732 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:32:20,732 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:32:20,732 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 08:32:20,732 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:32:20,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:32:20,734 INFO L85 PathProgramCache]: Analyzing trace with hash 660731436, now seen corresponding path program 1 times [2023-11-30 08:32:20,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:32:20,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588642621] [2023-11-30 08:32:20,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:32:20,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:32:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:32:20,864 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 08:32:20,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:32:20,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588642621] [2023-11-30 08:32:20,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588642621] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:32:20,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:32:20,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:32:20,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358760806] [2023-11-30 08:32:20,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:32:20,866 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:32:20,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:32:20,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:32:20,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:32:20,872 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 222 [2023-11-30 08:32:20,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 209 transitions, 725 flow. Second operand has 6 states, 6 states have (on average 178.5) internal successors, (1071), 6 states have internal predecessors, (1071), 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 08:32:20,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:32:20,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 222 [2023-11-30 08:32:20,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:32:21,120 INFO L124 PetriNetUnfolderBase]: 290/1388 cut-off events. [2023-11-30 08:32:21,120 INFO L125 PetriNetUnfolderBase]: For 897/921 co-relation queries the response was YES. [2023-11-30 08:32:21,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3012 conditions, 1388 events. 290/1388 cut-off events. For 897/921 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 10101 event pairs, 17 based on Foata normal form. 0/1129 useless extension candidates. Maximal degree in co-relation 2595. Up to 286 conditions per place. [2023-11-30 08:32:21,132 INFO L140 encePairwiseOnDemand]: 214/222 looper letters, 53 selfloop transitions, 10 changer transitions 0/216 dead transitions. [2023-11-30 08:32:21,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 216 transitions, 893 flow [2023-11-30 08:32:21,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 08:32:21,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 08:32:21,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1099 transitions. [2023-11-30 08:32:21,135 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.825075075075075 [2023-11-30 08:32:21,135 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1099 transitions. [2023-11-30 08:32:21,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1099 transitions. [2023-11-30 08:32:21,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:32:21,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1099 transitions. [2023-11-30 08:32:21,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 183.16666666666666) internal successors, (1099), 6 states have internal predecessors, (1099), 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 08:32:21,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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 08:32:21,142 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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 08:32:21,143 INFO L307 CegarLoopForPetriNet]: 175 programPoint places, 12 predicate places. [2023-11-30 08:32:21,143 INFO L500 AbstractCegarLoop]: Abstraction has has 187 places, 216 transitions, 893 flow [2023-11-30 08:32:21,144 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 178.5) internal successors, (1071), 6 states have internal predecessors, (1071), 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 08:32:21,144 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:32:21,144 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:32:21,144 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 08:32:21,144 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:32:21,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:32:21,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1529903697, now seen corresponding path program 1 times [2023-11-30 08:32:21,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:32:21,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349782161] [2023-11-30 08:32:21,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:32:21,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:32:21,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:32:21,259 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 08:32:21,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:32:21,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349782161] [2023-11-30 08:32:21,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349782161] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:32:21,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:32:21,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:32:21,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942602334] [2023-11-30 08:32:21,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:32:21,261 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:32:21,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:32:21,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:32:21,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:32:21,264 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 222 [2023-11-30 08:32:21,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 216 transitions, 893 flow. Second operand has 6 states, 6 states have (on average 178.33333333333334) internal successors, (1070), 6 states have internal predecessors, (1070), 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 08:32:21,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:32:21,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 222 [2023-11-30 08:32:21,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:32:21,518 INFO L124 PetriNetUnfolderBase]: 286/1378 cut-off events. [2023-11-30 08:32:21,519 INFO L125 PetriNetUnfolderBase]: For 1365/1405 co-relation queries the response was YES. [2023-11-30 08:32:21,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3394 conditions, 1378 events. 286/1378 cut-off events. For 1365/1405 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 10025 event pairs, 17 based on Foata normal form. 0/1126 useless extension candidates. Maximal degree in co-relation 2931. Up to 286 conditions per place. [2023-11-30 08:32:21,532 INFO L140 encePairwiseOnDemand]: 214/222 looper letters, 52 selfloop transitions, 10 changer transitions 0/215 dead transitions. [2023-11-30 08:32:21,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 215 transitions, 1011 flow [2023-11-30 08:32:21,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 08:32:21,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 08:32:21,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1098 transitions. [2023-11-30 08:32:21,535 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8243243243243243 [2023-11-30 08:32:21,535 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1098 transitions. [2023-11-30 08:32:21,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1098 transitions. [2023-11-30 08:32:21,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:32:21,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1098 transitions. [2023-11-30 08:32:21,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 183.0) internal successors, (1098), 6 states have internal predecessors, (1098), 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 08:32:21,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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 08:32:21,541 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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 08:32:21,543 INFO L307 CegarLoopForPetriNet]: 175 programPoint places, 16 predicate places. [2023-11-30 08:32:21,543 INFO L500 AbstractCegarLoop]: Abstraction has has 191 places, 215 transitions, 1011 flow [2023-11-30 08:32:21,543 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 178.33333333333334) internal successors, (1070), 6 states have internal predecessors, (1070), 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 08:32:21,543 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:32:21,543 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:32:21,544 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 08:32:21,544 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:32:21,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:32:21,544 INFO L85 PathProgramCache]: Analyzing trace with hash 182374943, now seen corresponding path program 1 times [2023-11-30 08:32:21,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:32:21,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673933327] [2023-11-30 08:32:21,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:32:21,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:32:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:32:21,610 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 08:32:21,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:32:21,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673933327] [2023-11-30 08:32:21,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673933327] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:32:21,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:32:21,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:32:21,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425379348] [2023-11-30 08:32:21,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:32:21,615 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:32:21,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:32:21,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:32:21,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:32:21,618 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 222 [2023-11-30 08:32:21,619 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 215 transitions, 1011 flow. Second operand has 4 states, 4 states have (on average 188.5) internal successors, (754), 4 states have internal predecessors, (754), 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 08:32:21,619 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:32:21,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 222 [2023-11-30 08:32:21,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:32:21,829 INFO L124 PetriNetUnfolderBase]: 280/1372 cut-off events. [2023-11-30 08:32:21,829 INFO L125 PetriNetUnfolderBase]: For 1805/1845 co-relation queries the response was YES. [2023-11-30 08:32:21,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3627 conditions, 1372 events. 280/1372 cut-off events. For 1805/1845 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 10088 event pairs, 17 based on Foata normal form. 0/1126 useless extension candidates. Maximal degree in co-relation 3127. Up to 286 conditions per place. [2023-11-30 08:32:21,844 INFO L140 encePairwiseOnDemand]: 217/222 looper letters, 41 selfloop transitions, 4 changer transitions 0/217 dead transitions. [2023-11-30 08:32:21,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 217 transitions, 1138 flow [2023-11-30 08:32:21,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:32:21,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:32:21,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 781 transitions. [2023-11-30 08:32:21,847 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8795045045045045 [2023-11-30 08:32:21,847 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 781 transitions. [2023-11-30 08:32:21,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 781 transitions. [2023-11-30 08:32:21,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:32:21,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 781 transitions. [2023-11-30 08:32:21,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 195.25) internal successors, (781), 4 states have internal predecessors, (781), 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 08:32:21,851 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 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 08:32:21,852 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 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 08:32:21,854 INFO L307 CegarLoopForPetriNet]: 175 programPoint places, 19 predicate places. [2023-11-30 08:32:21,854 INFO L500 AbstractCegarLoop]: Abstraction has has 194 places, 217 transitions, 1138 flow [2023-11-30 08:32:21,855 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 188.5) internal successors, (754), 4 states have internal predecessors, (754), 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 08:32:21,855 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:32:21,855 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:32:21,855 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-30 08:32:21,855 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:32:21,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:32:21,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1693070158, now seen corresponding path program 1 times [2023-11-30 08:32:21,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:32:21,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342521796] [2023-11-30 08:32:21,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:32:21,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:32:21,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:32:21,935 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 08:32:21,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:32:21,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342521796] [2023-11-30 08:32:21,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342521796] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:32:21,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:32:21,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:32:21,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50260481] [2023-11-30 08:32:21,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:32:21,940 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:32:21,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:32:21,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:32:21,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:32:21,942 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 222 [2023-11-30 08:32:21,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 217 transitions, 1138 flow. Second operand has 4 states, 4 states have (on average 188.75) internal successors, (755), 4 states have internal predecessors, (755), 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 08:32:21,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:32:21,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 222 [2023-11-30 08:32:21,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:32:22,205 INFO L124 PetriNetUnfolderBase]: 310/1486 cut-off events. [2023-11-30 08:32:22,205 INFO L125 PetriNetUnfolderBase]: For 2711/2751 co-relation queries the response was YES. [2023-11-30 08:32:22,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4352 conditions, 1486 events. 310/1486 cut-off events. For 2711/2751 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 11309 event pairs, 17 based on Foata normal form. 6/1223 useless extension candidates. Maximal degree in co-relation 3815. Up to 286 conditions per place. [2023-11-30 08:32:22,220 INFO L140 encePairwiseOnDemand]: 217/222 looper letters, 49 selfloop transitions, 5 changer transitions 0/228 dead transitions. [2023-11-30 08:32:22,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 228 transitions, 1368 flow [2023-11-30 08:32:22,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:32:22,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:32:22,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 778 transitions. [2023-11-30 08:32:22,222 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8761261261261262 [2023-11-30 08:32:22,222 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 778 transitions. [2023-11-30 08:32:22,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 778 transitions. [2023-11-30 08:32:22,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:32:22,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 778 transitions. [2023-11-30 08:32:22,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 194.5) internal successors, (778), 4 states have internal predecessors, (778), 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 08:32:22,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 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 08:32:22,227 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 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 08:32:22,228 INFO L307 CegarLoopForPetriNet]: 175 programPoint places, 21 predicate places. [2023-11-30 08:32:22,228 INFO L500 AbstractCegarLoop]: Abstraction has has 196 places, 228 transitions, 1368 flow [2023-11-30 08:32:22,228 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 188.75) internal successors, (755), 4 states have internal predecessors, (755), 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 08:32:22,228 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:32:22,228 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:32:22,229 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 08:32:22,229 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:32:22,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:32:22,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1268113651, now seen corresponding path program 1 times [2023-11-30 08:32:22,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:32:22,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752991289] [2023-11-30 08:32:22,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:32:22,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:32:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:32:22,300 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 08:32:22,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:32:22,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752991289] [2023-11-30 08:32:22,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752991289] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:32:22,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:32:22,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:32:22,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772743218] [2023-11-30 08:32:22,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:32:22,302 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:32:22,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:32:22,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:32:22,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:32:22,304 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 222 [2023-11-30 08:32:22,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 228 transitions, 1368 flow. Second operand has 6 states, 6 states have (on average 178.5) internal successors, (1071), 6 states have internal predecessors, (1071), 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 08:32:22,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:32:22,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 222 [2023-11-30 08:32:22,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:32:22,584 INFO L124 PetriNetUnfolderBase]: 306/1474 cut-off events. [2023-11-30 08:32:22,584 INFO L125 PetriNetUnfolderBase]: For 3355/3427 co-relation queries the response was YES. [2023-11-30 08:32:22,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4803 conditions, 1474 events. 306/1474 cut-off events. For 3355/3427 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 11131 event pairs, 17 based on Foata normal form. 6/1220 useless extension candidates. Maximal degree in co-relation 4206. Up to 276 conditions per place. [2023-11-30 08:32:22,602 INFO L140 encePairwiseOnDemand]: 214/222 looper letters, 59 selfloop transitions, 10 changer transitions 0/227 dead transitions. [2023-11-30 08:32:22,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 227 transitions, 1500 flow [2023-11-30 08:32:22,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 08:32:22,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 08:32:22,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1098 transitions. [2023-11-30 08:32:22,605 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8243243243243243 [2023-11-30 08:32:22,605 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1098 transitions. [2023-11-30 08:32:22,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1098 transitions. [2023-11-30 08:32:22,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:32:22,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1098 transitions. [2023-11-30 08:32:22,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 183.0) internal successors, (1098), 6 states have internal predecessors, (1098), 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 08:32:22,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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 08:32:22,611 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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 08:32:22,613 INFO L307 CegarLoopForPetriNet]: 175 programPoint places, 25 predicate places. [2023-11-30 08:32:22,613 INFO L500 AbstractCegarLoop]: Abstraction has has 200 places, 227 transitions, 1500 flow [2023-11-30 08:32:22,614 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 178.5) internal successors, (1071), 6 states have internal predecessors, (1071), 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 08:32:22,614 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:32:22,616 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:32:22,616 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-30 08:32:22,616 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:32:22,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:32:22,617 INFO L85 PathProgramCache]: Analyzing trace with hash 656818177, now seen corresponding path program 1 times [2023-11-30 08:32:22,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:32:22,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608927022] [2023-11-30 08:32:22,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:32:22,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:32:22,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:32:22,669 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 08:32:22,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:32:22,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608927022] [2023-11-30 08:32:22,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608927022] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:32:22,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:32:22,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:32:22,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505066952] [2023-11-30 08:32:22,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:32:22,670 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:32:22,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:32:22,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:32:22,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:32:22,672 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 222 [2023-11-30 08:32:22,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 227 transitions, 1500 flow. Second operand has 4 states, 4 states have (on average 188.75) internal successors, (755), 4 states have internal predecessors, (755), 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 08:32:22,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:32:22,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 222 [2023-11-30 08:32:22,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:32:22,884 INFO L124 PetriNetUnfolderBase]: 298/1466 cut-off events. [2023-11-30 08:32:22,884 INFO L125 PetriNetUnfolderBase]: For 3935/3997 co-relation queries the response was YES. [2023-11-30 08:32:22,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5104 conditions, 1466 events. 298/1466 cut-off events. For 3935/3997 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 11144 event pairs, 17 based on Foata normal form. 0/1214 useless extension candidates. Maximal degree in co-relation 4444. Up to 276 conditions per place. [2023-11-30 08:32:22,903 INFO L140 encePairwiseOnDemand]: 217/222 looper letters, 48 selfloop transitions, 4 changer transitions 0/229 dead transitions. [2023-11-30 08:32:22,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 229 transitions, 1659 flow [2023-11-30 08:32:22,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 08:32:22,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 08:32:22,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 781 transitions. [2023-11-30 08:32:22,905 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8795045045045045 [2023-11-30 08:32:22,905 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 781 transitions. [2023-11-30 08:32:22,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 781 transitions. [2023-11-30 08:32:22,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:32:22,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 781 transitions. [2023-11-30 08:32:22,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 195.25) internal successors, (781), 4 states have internal predecessors, (781), 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 08:32:22,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 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 08:32:22,911 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 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 08:32:22,912 INFO L307 CegarLoopForPetriNet]: 175 programPoint places, 28 predicate places. [2023-11-30 08:32:22,912 INFO L500 AbstractCegarLoop]: Abstraction has has 203 places, 229 transitions, 1659 flow [2023-11-30 08:32:22,913 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 188.75) internal successors, (755), 4 states have internal predecessors, (755), 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 08:32:22,913 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:32:22,913 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:32:22,913 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-30 08:32:22,913 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:32:22,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:32:22,914 INFO L85 PathProgramCache]: Analyzing trace with hash 2027465156, now seen corresponding path program 1 times [2023-11-30 08:32:22,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:32:22,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294752791] [2023-11-30 08:32:22,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:32:22,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:32:22,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:32:23,020 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 08:32:23,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:32:23,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294752791] [2023-11-30 08:32:23,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294752791] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:32:23,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:32:23,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:32:23,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230780154] [2023-11-30 08:32:23,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:32:23,022 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:32:23,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:32:23,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:32:23,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:32:23,025 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 222 [2023-11-30 08:32:23,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 229 transitions, 1659 flow. Second operand has 8 states, 8 states have (on average 173.25) internal successors, (1386), 8 states have internal predecessors, (1386), 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 08:32:23,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:32:23,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 222 [2023-11-30 08:32:23,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:32:23,364 INFO L124 PetriNetUnfolderBase]: 312/1469 cut-off events. [2023-11-30 08:32:23,364 INFO L125 PetriNetUnfolderBase]: For 4985/5069 co-relation queries the response was YES. [2023-11-30 08:32:23,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5606 conditions, 1469 events. 312/1469 cut-off events. For 4985/5069 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 11036 event pairs, 17 based on Foata normal form. 0/1224 useless extension candidates. Maximal degree in co-relation 4901. Up to 274 conditions per place. [2023-11-30 08:32:23,382 INFO L140 encePairwiseOnDemand]: 210/222 looper letters, 78 selfloop transitions, 15 changer transitions 0/239 dead transitions. [2023-11-30 08:32:23,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 239 transitions, 1980 flow [2023-11-30 08:32:23,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 08:32:23,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 08:32:23,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1427 transitions. [2023-11-30 08:32:23,386 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.803490990990991 [2023-11-30 08:32:23,386 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1427 transitions. [2023-11-30 08:32:23,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1427 transitions. [2023-11-30 08:32:23,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:32:23,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1427 transitions. [2023-11-30 08:32:23,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 178.375) internal successors, (1427), 8 states have internal predecessors, (1427), 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 08:32:23,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 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 08:32:23,394 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 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 08:32:23,394 INFO L307 CegarLoopForPetriNet]: 175 programPoint places, 35 predicate places. [2023-11-30 08:32:23,394 INFO L500 AbstractCegarLoop]: Abstraction has has 210 places, 239 transitions, 1980 flow [2023-11-30 08:32:23,395 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 173.25) internal successors, (1386), 8 states have internal predecessors, (1386), 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 08:32:23,395 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:32:23,395 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:32:23,395 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-30 08:32:23,396 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:32:23,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:32:23,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1573089000, now seen corresponding path program 1 times [2023-11-30 08:32:23,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:32:23,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486776249] [2023-11-30 08:32:23,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:32:23,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:32:23,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:32:23,518 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 08:32:23,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:32:23,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486776249] [2023-11-30 08:32:23,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486776249] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:32:23,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:32:23,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:32:23,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772332137] [2023-11-30 08:32:23,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:32:23,519 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:32:23,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:32:23,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:32:23,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:32:23,521 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 222 [2023-11-30 08:32:23,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 239 transitions, 1980 flow. Second operand has 8 states, 8 states have (on average 173.375) internal successors, (1387), 8 states have internal predecessors, (1387), 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 08:32:23,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:32:23,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 222 [2023-11-30 08:32:23,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:32:23,817 INFO L124 PetriNetUnfolderBase]: 334/1479 cut-off events. [2023-11-30 08:32:23,818 INFO L125 PetriNetUnfolderBase]: For 6223/6325 co-relation queries the response was YES. [2023-11-30 08:32:23,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6184 conditions, 1479 events. 334/1479 cut-off events. For 6223/6325 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 11021 event pairs, 17 based on Foata normal form. 0/1238 useless extension candidates. Maximal degree in co-relation 5434. Up to 284 conditions per place. [2023-11-30 08:32:23,835 INFO L140 encePairwiseOnDemand]: 210/222 looper letters, 92 selfloop transitions, 16 changer transitions 1/255 dead transitions. [2023-11-30 08:32:23,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 255 transitions, 2464 flow [2023-11-30 08:32:23,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 08:32:23,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 08:32:23,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1426 transitions. [2023-11-30 08:32:23,838 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8029279279279279 [2023-11-30 08:32:23,839 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1426 transitions. [2023-11-30 08:32:23,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1426 transitions. [2023-11-30 08:32:23,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:32:23,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1426 transitions. [2023-11-30 08:32:23,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 178.25) internal successors, (1426), 8 states have internal predecessors, (1426), 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 08:32:23,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 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 08:32:23,846 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 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 08:32:23,847 INFO L307 CegarLoopForPetriNet]: 175 programPoint places, 42 predicate places. [2023-11-30 08:32:23,847 INFO L500 AbstractCegarLoop]: Abstraction has has 217 places, 255 transitions, 2464 flow [2023-11-30 08:32:23,847 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 173.375) internal successors, (1387), 8 states have internal predecessors, (1387), 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 08:32:23,847 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:32:23,847 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:32:23,848 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-30 08:32:23,848 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:32:23,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:32:23,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1094150640, now seen corresponding path program 1 times [2023-11-30 08:32:23,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:32:23,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592121712] [2023-11-30 08:32:23,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:32:23,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:32:23,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:32:23,911 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 08:32:23,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:32:23,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592121712] [2023-11-30 08:32:23,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592121712] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:32:23,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:32:23,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:32:23,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162054797] [2023-11-30 08:32:23,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:32:23,912 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 08:32:23,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:32:23,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 08:32:23,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-30 08:32:23,913 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 222 [2023-11-30 08:32:23,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 255 transitions, 2464 flow. Second operand has 5 states, 5 states have (on average 185.0) internal successors, (925), 5 states have internal predecessors, (925), 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 08:32:23,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:32:23,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 222 [2023-11-30 08:32:23,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:32:24,152 INFO L124 PetriNetUnfolderBase]: 338/1523 cut-off events. [2023-11-30 08:32:24,152 INFO L125 PetriNetUnfolderBase]: For 7522/7654 co-relation queries the response was YES. [2023-11-30 08:32:24,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6623 conditions, 1523 events. 338/1523 cut-off events. For 7522/7654 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 11687 event pairs, 17 based on Foata normal form. 0/1283 useless extension candidates. Maximal degree in co-relation 5704. Up to 284 conditions per place. [2023-11-30 08:32:24,173 INFO L140 encePairwiseOnDemand]: 214/222 looper letters, 62 selfloop transitions, 8 changer transitions 1/260 dead transitions. [2023-11-30 08:32:24,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 260 transitions, 2648 flow [2023-11-30 08:32:24,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 08:32:24,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 08:32:24,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1138 transitions. [2023-11-30 08:32:24,176 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8543543543543544 [2023-11-30 08:32:24,176 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1138 transitions. [2023-11-30 08:32:24,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1138 transitions. [2023-11-30 08:32:24,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:32:24,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1138 transitions. [2023-11-30 08:32:24,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 189.66666666666666) internal successors, (1138), 6 states have internal predecessors, (1138), 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 08:32:24,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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 08:32:24,182 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 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 08:32:24,182 INFO L307 CegarLoopForPetriNet]: 175 programPoint places, 46 predicate places. [2023-11-30 08:32:24,183 INFO L500 AbstractCegarLoop]: Abstraction has has 221 places, 260 transitions, 2648 flow [2023-11-30 08:32:24,183 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 185.0) internal successors, (925), 5 states have internal predecessors, (925), 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 08:32:24,183 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:32:24,183 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:32:24,183 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-30 08:32:24,183 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:32:24,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:32:24,184 INFO L85 PathProgramCache]: Analyzing trace with hash -782488653, now seen corresponding path program 1 times [2023-11-30 08:32:24,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:32:24,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005298446] [2023-11-30 08:32:24,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:32:24,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:32:24,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:32:24,275 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 08:32:24,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:32:24,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005298446] [2023-11-30 08:32:24,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005298446] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:32:24,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:32:24,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:32:24,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138102619] [2023-11-30 08:32:24,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:32:24,277 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:32:24,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:32:24,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:32:24,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:32:24,278 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 222 [2023-11-30 08:32:24,280 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 260 transitions, 2648 flow. Second operand has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 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 08:32:24,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:32:24,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 222 [2023-11-30 08:32:24,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:32:24,572 INFO L124 PetriNetUnfolderBase]: 364/1543 cut-off events. [2023-11-30 08:32:24,573 INFO L125 PetriNetUnfolderBase]: For 11306/11438 co-relation queries the response was YES. [2023-11-30 08:32:24,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7497 conditions, 1543 events. 364/1543 cut-off events. For 11306/11438 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 11914 event pairs, 17 based on Foata normal form. 0/1310 useless extension candidates. Maximal degree in co-relation 6535. Up to 304 conditions per place. [2023-11-30 08:32:24,596 INFO L140 encePairwiseOnDemand]: 213/222 looper letters, 88 selfloop transitions, 11 changer transitions 3/280 dead transitions. [2023-11-30 08:32:24,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 280 transitions, 3092 flow [2023-11-30 08:32:24,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:32:24,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:32:24,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1264 transitions. [2023-11-30 08:32:24,599 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8133848133848134 [2023-11-30 08:32:24,599 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1264 transitions. [2023-11-30 08:32:24,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1264 transitions. [2023-11-30 08:32:24,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:32:24,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1264 transitions. [2023-11-30 08:32:24,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 180.57142857142858) internal successors, (1264), 7 states have internal predecessors, (1264), 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 08:32:24,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 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 08:32:24,605 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 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 08:32:24,606 INFO L307 CegarLoopForPetriNet]: 175 programPoint places, 51 predicate places. [2023-11-30 08:32:24,606 INFO L500 AbstractCegarLoop]: Abstraction has has 226 places, 280 transitions, 3092 flow [2023-11-30 08:32:24,607 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 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 08:32:24,607 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:32:24,607 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:32:24,607 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-30 08:32:24,607 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:32:24,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:32:24,608 INFO L85 PathProgramCache]: Analyzing trace with hash 139870080, now seen corresponding path program 1 times [2023-11-30 08:32:24,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:32:24,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847081868] [2023-11-30 08:32:24,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:32:24,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:32:24,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:32:24,749 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 08:32:24,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:32:24,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847081868] [2023-11-30 08:32:24,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847081868] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:32:24,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:32:24,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:32:24,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850111664] [2023-11-30 08:32:24,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:32:24,750 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:32:24,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:32:24,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:32:24,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:32:24,752 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 222 [2023-11-30 08:32:24,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 280 transitions, 3092 flow. Second operand has 6 states, 6 states have (on average 176.16666666666666) internal successors, (1057), 6 states have internal predecessors, (1057), 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 08:32:24,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:32:24,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 222 [2023-11-30 08:32:24,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:32:25,040 INFO L124 PetriNetUnfolderBase]: 360/1533 cut-off events. [2023-11-30 08:32:25,040 INFO L125 PetriNetUnfolderBase]: For 12311/12443 co-relation queries the response was YES. [2023-11-30 08:32:25,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7925 conditions, 1533 events. 360/1533 cut-off events. For 12311/12443 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 11785 event pairs, 17 based on Foata normal form. 0/1307 useless extension candidates. Maximal degree in co-relation 6920. Up to 344 conditions per place. [2023-11-30 08:32:25,062 INFO L140 encePairwiseOnDemand]: 213/222 looper letters, 98 selfloop transitions, 13 changer transitions 17/292 dead transitions. [2023-11-30 08:32:25,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 292 transitions, 3537 flow [2023-11-30 08:32:25,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:32:25,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:32:25,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1255 transitions. [2023-11-30 08:32:25,065 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8075933075933076 [2023-11-30 08:32:25,065 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1255 transitions. [2023-11-30 08:32:25,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1255 transitions. [2023-11-30 08:32:25,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:32:25,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1255 transitions. [2023-11-30 08:32:25,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 179.28571428571428) internal successors, (1255), 7 states have internal predecessors, (1255), 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 08:32:25,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 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 08:32:25,071 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 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 08:32:25,072 INFO L307 CegarLoopForPetriNet]: 175 programPoint places, 56 predicate places. [2023-11-30 08:32:25,072 INFO L500 AbstractCegarLoop]: Abstraction has has 231 places, 292 transitions, 3537 flow [2023-11-30 08:32:25,072 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 176.16666666666666) internal successors, (1057), 6 states have internal predecessors, (1057), 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 08:32:25,072 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:32:25,072 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:32:25,073 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-30 08:32:25,073 INFO L425 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:32:25,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:32:25,073 INFO L85 PathProgramCache]: Analyzing trace with hash 910319526, now seen corresponding path program 1 times [2023-11-30 08:32:25,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:32:25,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381298431] [2023-11-30 08:32:25,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:32:25,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:32:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:32:25,163 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 08:32:25,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:32:25,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381298431] [2023-11-30 08:32:25,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381298431] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:32:25,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:32:25,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:32:25,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431104977] [2023-11-30 08:32:25,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:32:25,164 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:32:25,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:32:25,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:32:25,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:32:25,166 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 222 [2023-11-30 08:32:25,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 292 transitions, 3537 flow. Second operand has 8 states, 8 states have (on average 173.375) internal successors, (1387), 8 states have internal predecessors, (1387), 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 08:32:25,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:32:25,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 222 [2023-11-30 08:32:25,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:32:25,492 INFO L124 PetriNetUnfolderBase]: 378/1543 cut-off events. [2023-11-30 08:32:25,492 INFO L125 PetriNetUnfolderBase]: For 14289/14489 co-relation queries the response was YES. [2023-11-30 08:32:25,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8603 conditions, 1543 events. 378/1543 cut-off events. For 14289/14489 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 11837 event pairs, 17 based on Foata normal form. 5/1324 useless extension candidates. Maximal degree in co-relation 7522. Up to 344 conditions per place. [2023-11-30 08:32:25,514 INFO L140 encePairwiseOnDemand]: 210/222 looper letters, 104 selfloop transitions, 21 changer transitions 17/303 dead transitions. [2023-11-30 08:32:25,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 303 transitions, 4018 flow [2023-11-30 08:32:25,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 08:32:25,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 08:32:25,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1426 transitions. [2023-11-30 08:32:25,518 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8029279279279279 [2023-11-30 08:32:25,518 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1426 transitions. [2023-11-30 08:32:25,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1426 transitions. [2023-11-30 08:32:25,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:32:25,519 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1426 transitions. [2023-11-30 08:32:25,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 178.25) internal successors, (1426), 8 states have internal predecessors, (1426), 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 08:32:25,525 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 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 08:32:25,525 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 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 08:32:25,525 INFO L307 CegarLoopForPetriNet]: 175 programPoint places, 63 predicate places. [2023-11-30 08:32:25,526 INFO L500 AbstractCegarLoop]: Abstraction has has 238 places, 303 transitions, 4018 flow [2023-11-30 08:32:25,526 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 173.375) internal successors, (1387), 8 states have internal predecessors, (1387), 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 08:32:25,526 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:32:25,526 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:32:25,526 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-30 08:32:25,527 INFO L425 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:32:25,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:32:25,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1844865094, now seen corresponding path program 1 times [2023-11-30 08:32:25,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:32:25,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956714592] [2023-11-30 08:32:25,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:32:25,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:32:25,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:32:25,616 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 08:32:25,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:32:25,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956714592] [2023-11-30 08:32:25,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956714592] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:32:25,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:32:25,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:32:25,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224663772] [2023-11-30 08:32:25,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:32:25,617 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 08:32:25,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:32:25,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 08:32:25,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:32:25,619 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 222 [2023-11-30 08:32:25,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 303 transitions, 4018 flow. Second operand has 8 states, 8 states have (on average 173.5) internal successors, (1388), 8 states have internal predecessors, (1388), 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 08:32:25,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:32:25,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 222 [2023-11-30 08:32:25,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:32:26,005 INFO L124 PetriNetUnfolderBase]: 406/1579 cut-off events. [2023-11-30 08:32:26,005 INFO L125 PetriNetUnfolderBase]: For 16807/16990 co-relation queries the response was YES. [2023-11-30 08:32:26,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9552 conditions, 1579 events. 406/1579 cut-off events. For 16807/16990 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 12079 event pairs, 17 based on Foata normal form. 8/1362 useless extension candidates. Maximal degree in co-relation 8360. Up to 345 conditions per place. [2023-11-30 08:32:26,023 INFO L140 encePairwiseOnDemand]: 210/222 looper letters, 122 selfloop transitions, 23 changer transitions 17/320 dead transitions. [2023-11-30 08:32:26,023 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 320 transitions, 4672 flow [2023-11-30 08:32:26,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-30 08:32:26,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-30 08:32:26,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1426 transitions. [2023-11-30 08:32:26,026 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8029279279279279 [2023-11-30 08:32:26,026 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1426 transitions. [2023-11-30 08:32:26,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1426 transitions. [2023-11-30 08:32:26,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:32:26,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1426 transitions. [2023-11-30 08:32:26,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 178.25) internal successors, (1426), 8 states have internal predecessors, (1426), 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 08:32:26,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 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 08:32:26,033 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 222.0) internal successors, (1998), 9 states have internal predecessors, (1998), 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 08:32:26,033 INFO L307 CegarLoopForPetriNet]: 175 programPoint places, 70 predicate places. [2023-11-30 08:32:26,033 INFO L500 AbstractCegarLoop]: Abstraction has has 245 places, 320 transitions, 4672 flow [2023-11-30 08:32:26,035 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 173.5) internal successors, (1388), 8 states have internal predecessors, (1388), 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 08:32:26,035 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:32:26,035 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:32:26,036 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-30 08:32:26,036 INFO L425 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:32:26,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:32:26,036 INFO L85 PathProgramCache]: Analyzing trace with hash 33692245, now seen corresponding path program 1 times [2023-11-30 08:32:26,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:32:26,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305499162] [2023-11-30 08:32:26,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:32:26,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:32:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:32:26,129 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 08:32:26,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:32:26,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305499162] [2023-11-30 08:32:26,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305499162] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:32:26,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:32:26,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:32:26,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215086946] [2023-11-30 08:32:26,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:32:26,131 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:32:26,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:32:26,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:32:26,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:32:26,132 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 222 [2023-11-30 08:32:26,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 320 transitions, 4672 flow. Second operand has 6 states, 6 states have (on average 176.16666666666666) internal successors, (1057), 6 states have internal predecessors, (1057), 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 08:32:26,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:32:26,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 222 [2023-11-30 08:32:26,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:32:26,448 INFO L124 PetriNetUnfolderBase]: 432/1597 cut-off events. [2023-11-30 08:32:26,448 INFO L125 PetriNetUnfolderBase]: For 23504/23686 co-relation queries the response was YES. [2023-11-30 08:32:26,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10626 conditions, 1597 events. 432/1597 cut-off events. For 23504/23686 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 12586 event pairs, 17 based on Foata normal form. 0/1381 useless extension candidates. Maximal degree in co-relation 8785. Up to 374 conditions per place. [2023-11-30 08:32:26,472 INFO L140 encePairwiseOnDemand]: 213/222 looper letters, 105 selfloop transitions, 10 changer transitions 20/339 dead transitions. [2023-11-30 08:32:26,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 339 transitions, 5212 flow [2023-11-30 08:32:26,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:32:26,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:32:26,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1263 transitions. [2023-11-30 08:32:26,477 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8127413127413128 [2023-11-30 08:32:26,477 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1263 transitions. [2023-11-30 08:32:26,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1263 transitions. [2023-11-30 08:32:26,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:32:26,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1263 transitions. [2023-11-30 08:32:26,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 180.42857142857142) internal successors, (1263), 7 states have internal predecessors, (1263), 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 08:32:26,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 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 08:32:26,483 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 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 08:32:26,483 INFO L307 CegarLoopForPetriNet]: 175 programPoint places, 75 predicate places. [2023-11-30 08:32:26,484 INFO L500 AbstractCegarLoop]: Abstraction has has 250 places, 339 transitions, 5212 flow [2023-11-30 08:32:26,484 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 176.16666666666666) internal successors, (1057), 6 states have internal predecessors, (1057), 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 08:32:26,484 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:32:26,484 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:32:26,484 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-30 08:32:26,484 INFO L425 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-30 08:32:26,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:32:26,485 INFO L85 PathProgramCache]: Analyzing trace with hash -328325790, now seen corresponding path program 1 times [2023-11-30 08:32:26,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:32:26,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135216849] [2023-11-30 08:32:26,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:32:26,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:32:26,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:32:26,575 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 08:32:26,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:32:26,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135216849] [2023-11-30 08:32:26,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135216849] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:32:26,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:32:26,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 08:32:26,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683267791] [2023-11-30 08:32:26,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:32:26,576 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:32:26,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:32:26,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:32:26,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-30 08:32:26,578 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 222 [2023-11-30 08:32:26,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 339 transitions, 5212 flow. Second operand has 6 states, 6 states have (on average 176.33333333333334) internal successors, (1058), 6 states have internal predecessors, (1058), 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 08:32:26,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:32:26,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 222 [2023-11-30 08:32:26,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:32:26,926 INFO L124 PetriNetUnfolderBase]: 428/1585 cut-off events. [2023-11-30 08:32:26,927 INFO L125 PetriNetUnfolderBase]: For 25057/25287 co-relation queries the response was YES. [2023-11-30 08:32:26,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11158 conditions, 1585 events. 428/1585 cut-off events. For 25057/25287 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 12514 event pairs, 17 based on Foata normal form. 0/1378 useless extension candidates. Maximal degree in co-relation 9210. Up to 453 conditions per place. [2023-11-30 08:32:26,943 INFO L140 encePairwiseOnDemand]: 213/222 looper letters, 0 selfloop transitions, 0 changer transitions 353/353 dead transitions. [2023-11-30 08:32:26,943 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 353 transitions, 5837 flow [2023-11-30 08:32:26,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:32:26,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:32:26,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1255 transitions. [2023-11-30 08:32:26,945 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8075933075933076 [2023-11-30 08:32:26,945 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1255 transitions. [2023-11-30 08:32:26,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1255 transitions. [2023-11-30 08:32:26,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:32:26,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1255 transitions. [2023-11-30 08:32:26,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 179.28571428571428) internal successors, (1255), 7 states have internal predecessors, (1255), 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 08:32:26,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 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 08:32:26,950 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 222.0) internal successors, (1776), 8 states have internal predecessors, (1776), 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 08:32:26,952 INFO L307 CegarLoopForPetriNet]: 175 programPoint places, 80 predicate places. [2023-11-30 08:32:26,952 INFO L500 AbstractCegarLoop]: Abstraction has has 255 places, 353 transitions, 5837 flow [2023-11-30 08:32:26,953 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 176.33333333333334) internal successors, (1058), 6 states have internal predecessors, (1058), 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 08:32:26,960 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/chl-exp-term-symm.wvr.c_BEv2_AllErrorsAtOnce [2023-11-30 08:32:27,077 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 26 remaining) [2023-11-30 08:32:27,078 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2023-11-30 08:32:27,078 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2023-11-30 08:32:27,078 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2023-11-30 08:32:27,078 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2023-11-30 08:32:27,078 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2023-11-30 08:32:27,078 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2023-11-30 08:32:27,079 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2023-11-30 08:32:27,079 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2023-11-30 08:32:27,079 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2023-11-30 08:32:27,079 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2023-11-30 08:32:27,079 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2023-11-30 08:32:27,079 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 26 remaining) [2023-11-30 08:32:27,079 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2023-11-30 08:32:27,079 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2023-11-30 08:32:27,080 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2023-11-30 08:32:27,080 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2023-11-30 08:32:27,080 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2023-11-30 08:32:27,080 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2023-11-30 08:32:27,080 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2023-11-30 08:32:27,080 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2023-11-30 08:32:27,080 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2023-11-30 08:32:27,080 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2023-11-30 08:32:27,081 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2023-11-30 08:32:27,081 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2023-11-30 08:32:27,081 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2023-11-30 08:32:27,081 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-30 08:32:27,081 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:32:27,087 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 08:32:27,087 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 08:32:27,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 08:32:27 BasicIcfg [2023-11-30 08:32:27,093 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 08:32:27,094 INFO L158 Benchmark]: Toolchain (without parser) took 9290.14ms. Allocated memory was 539.0MB in the beginning and 926.9MB in the end (delta: 388.0MB). Free memory was 488.1MB in the beginning and 851.9MB in the end (delta: -363.8MB). Peak memory consumption was 419.4MB. Max. memory is 16.0GB. [2023-11-30 08:32:27,094 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 360.7MB. Free memory is still 313.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 08:32:27,094 INFO L158 Benchmark]: CACSL2BoogieTranslator took 220.22ms. Allocated memory is still 539.0MB. Free memory was 488.0MB in the beginning and 476.7MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-11-30 08:32:27,094 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.67ms. Allocated memory is still 539.0MB. Free memory was 476.7MB in the beginning and 474.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 08:32:27,095 INFO L158 Benchmark]: Boogie Preprocessor took 29.17ms. Allocated memory is still 539.0MB. Free memory was 474.6MB in the beginning and 473.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 08:32:27,095 INFO L158 Benchmark]: RCFGBuilder took 446.20ms. Allocated memory is still 539.0MB. Free memory was 473.0MB in the beginning and 503.6MB in the end (delta: -30.5MB). Peak memory consumption was 24.3MB. Max. memory is 16.0GB. [2023-11-30 08:32:27,095 INFO L158 Benchmark]: TraceAbstraction took 8556.64ms. Allocated memory was 539.0MB in the beginning and 926.9MB in the end (delta: 388.0MB). Free memory was 502.7MB in the beginning and 851.9MB in the end (delta: -349.2MB). Peak memory consumption was 430.8MB. Max. memory is 16.0GB. [2023-11-30 08:32:27,096 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 360.7MB. Free memory is still 313.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 220.22ms. Allocated memory is still 539.0MB. Free memory was 488.0MB in the beginning and 476.7MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 32.67ms. Allocated memory is still 539.0MB. Free memory was 476.7MB in the beginning and 474.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 29.17ms. Allocated memory is still 539.0MB. Free memory was 474.6MB in the beginning and 473.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 446.20ms. Allocated memory is still 539.0MB. Free memory was 473.0MB in the beginning and 503.6MB in the end (delta: -30.5MB). Peak memory consumption was 24.3MB. Max. memory is 16.0GB. * TraceAbstraction took 8556.64ms. Allocated memory was 539.0MB in the beginning and 926.9MB in the end (delta: 388.0MB). Free memory was 502.7MB in the beginning and 851.9MB in the end (delta: -349.2MB). Peak memory consumption was 430.8MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: 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 5 procedures, 332 locations, 26 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: 8.4s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 918 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 918 mSDsluCounter, 643 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 327 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1626 IncrementalHoareTripleChecker+Invalid, 1675 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 316 mSDtfsCounter, 1626 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5837occurred in iteration=18, InterpolantAutomatonStates: 110, 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, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 1092 NumberOfCodeBlocks, 1092 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1074 ConstructedInterpolants, 0 QuantifiedInterpolants, 2466 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 08:32:27,116 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...