/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/array-eq-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 08:20:08,364 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 08:20:08,437 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 08:20:08,483 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 08:20:08,484 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 08:20:08,485 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 08:20:08,485 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 08:20:08,485 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 08:20:08,486 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 08:20:08,491 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 08:20:08,491 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 08:20:08,492 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 08:20:08,492 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 08:20:08,493 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 08:20:08,493 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 08:20:08,493 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 08:20:08,494 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 08:20:08,494 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 08:20:08,494 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 08:20:08,494 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 08:20:08,494 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 08:20:08,495 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 08:20:08,495 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 08:20:08,496 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 08:20:08,496 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 08:20:08,497 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 08:20:08,497 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 08:20:08,498 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 08:20:08,498 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 08:20:08,498 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 08:20:08,499 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 08:20:08,499 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 08:20:08,499 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 08:20:08,499 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 08:20:08,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 08:20:08,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 08:20:08,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 08:20:08,699 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 08:20:08,699 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 08:20:08,700 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/array-eq-symm.wvr.c [2023-11-30 08:20:09,862 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 08:20:10,031 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 08:20:10,036 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/array-eq-symm.wvr.c [2023-11-30 08:20:10,059 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb31339c0/fd206c3bc0984a618a407407493b142c/FLAG5097f4188 [2023-11-30 08:20:10,079 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb31339c0/fd206c3bc0984a618a407407493b142c [2023-11-30 08:20:10,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 08:20:10,083 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 08:20:10,084 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 08:20:10,085 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 08:20:10,092 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 08:20:10,093 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 08:20:10" (1/1) ... [2023-11-30 08:20:10,097 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67b0f672 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:20:10, skipping insertion in model container [2023-11-30 08:20:10,098 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 08:20:10" (1/1) ... [2023-11-30 08:20:10,133 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 08:20:10,265 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 08:20:10,273 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 08:20:10,296 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 08:20:10,314 INFO L206 MainTranslator]: Completed translation [2023-11-30 08:20:10,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:20:10 WrapperNode [2023-11-30 08:20:10,314 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 08:20:10,315 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 08:20:10,315 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 08:20:10,315 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 08:20:10,321 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:20:10" (1/1) ... [2023-11-30 08:20:10,327 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:20:10" (1/1) ... [2023-11-30 08:20:10,345 INFO L138 Inliner]: procedures = 23, calls = 30, calls flagged for inlining = 8, calls inlined = 10, statements flattened = 123 [2023-11-30 08:20:10,346 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 08:20:10,347 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 08:20:10,347 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 08:20:10,347 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 08:20:10,356 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:20:10" (1/1) ... [2023-11-30 08:20:10,356 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:20:10" (1/1) ... [2023-11-30 08:20:10,362 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:20:10" (1/1) ... [2023-11-30 08:20:10,363 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:20:10" (1/1) ... [2023-11-30 08:20:10,371 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:20:10" (1/1) ... [2023-11-30 08:20:10,375 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:20:10" (1/1) ... [2023-11-30 08:20:10,377 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:20:10" (1/1) ... [2023-11-30 08:20:10,378 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:20:10" (1/1) ... [2023-11-30 08:20:10,381 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 08:20:10,382 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 08:20:10,383 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 08:20:10,383 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 08:20:10,383 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:20:10" (1/1) ... [2023-11-30 08:20:10,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 08:20:10,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:20:10,415 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 08:20:10,420 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 08:20:10,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 08:20:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-30 08:20:10,457 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-30 08:20:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-30 08:20:10,457 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-30 08:20:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 08:20:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 08:20:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 08:20:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-30 08:20:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 08:20:10,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 08:20:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 08:20:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 08:20:10,461 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 08:20:10,587 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 08:20:10,595 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 08:20:10,925 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 08:20:10,942 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 08:20:10,942 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-30 08:20:10,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 08:20:10 BoogieIcfgContainer [2023-11-30 08:20:10,943 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 08:20:10,945 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 08:20:10,945 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 08:20:10,948 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 08:20:10,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 08:20:10" (1/3) ... [2023-11-30 08:20:10,948 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3edd3919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 08:20:10, skipping insertion in model container [2023-11-30 08:20:10,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 08:20:10" (2/3) ... [2023-11-30 08:20:10,949 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3edd3919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 08:20:10, skipping insertion in model container [2023-11-30 08:20:10,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 08:20:10" (3/3) ... [2023-11-30 08:20:10,950 INFO L112 eAbstractionObserver]: Analyzing ICFG array-eq-symm.wvr.c [2023-11-30 08:20:10,968 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 08:20:10,968 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-30 08:20:10,969 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 08:20:11,050 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-30 08:20:11,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 188 places, 196 transitions, 406 flow [2023-11-30 08:20:11,149 INFO L124 PetriNetUnfolderBase]: 15/194 cut-off events. [2023-11-30 08:20:11,149 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-30 08:20:11,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 194 events. 15/194 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 183 event pairs, 0 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 146. Up to 3 conditions per place. [2023-11-30 08:20:11,154 INFO L82 GeneralOperation]: Start removeDead. Operand has 188 places, 196 transitions, 406 flow [2023-11-30 08:20:11,158 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 165 places, 172 transitions, 353 flow [2023-11-30 08:20:11,165 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 08:20:11,170 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;@46b44013, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 08:20:11,170 INFO L363 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2023-11-30 08:20:11,181 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 08:20:11,181 INFO L124 PetriNetUnfolderBase]: 3/61 cut-off events. [2023-11-30 08:20:11,181 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 08:20:11,181 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:20:11,182 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] [2023-11-30 08:20:11,182 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 08:20:11,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:20:11,186 INFO L85 PathProgramCache]: Analyzing trace with hash -363256564, now seen corresponding path program 1 times [2023-11-30 08:20:11,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:20:11,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760689296] [2023-11-30 08:20:11,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:20:11,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:20:11,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:20:11,474 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 08:20:11,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:20:11,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760689296] [2023-11-30 08:20:11,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760689296] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:20:11,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:20:11,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:20:11,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525496022] [2023-11-30 08:20:11,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:20:11,484 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:20:11,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:20:11,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:20:11,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:20:11,534 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 196 [2023-11-30 08:20:11,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 172 transitions, 353 flow. Second operand has 4 states, 4 states have (on average 155.5) internal successors, (622), 4 states have internal predecessors, (622), 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 08:20:11,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:20:11,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 196 [2023-11-30 08:20:11,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:20:11,711 INFO L124 PetriNetUnfolderBase]: 8/188 cut-off events. [2023-11-30 08:20:11,711 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-30 08:20:11,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 188 events. 8/188 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 247 event pairs, 0 based on Foata normal form. 8/176 useless extension candidates. Maximal degree in co-relation 210. Up to 34 conditions per place. [2023-11-30 08:20:11,714 INFO L140 encePairwiseOnDemand]: 174/196 looper letters, 39 selfloop transitions, 10 changer transitions 4/182 dead transitions. [2023-11-30 08:20:11,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 182 transitions, 471 flow [2023-11-30 08:20:11,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 08:20:11,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 08:20:11,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 833 transitions. [2023-11-30 08:20:11,728 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.85 [2023-11-30 08:20:11,729 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 833 transitions. [2023-11-30 08:20:11,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 833 transitions. [2023-11-30 08:20:11,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:20:11,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 833 transitions. [2023-11-30 08:20:11,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 166.6) internal successors, (833), 5 states have internal predecessors, (833), 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 08:20:11,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 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 08:20:11,751 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 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 08:20:11,754 INFO L307 CegarLoopForPetriNet]: 165 programPoint places, 4 predicate places. [2023-11-30 08:20:11,754 INFO L500 AbstractCegarLoop]: Abstraction has has 169 places, 182 transitions, 471 flow [2023-11-30 08:20:11,755 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 155.5) internal successors, (622), 4 states have internal predecessors, (622), 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 08:20:11,755 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:20:11,755 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:20:11,755 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 08:20:11,756 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 08:20:11,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:20:11,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1539309222, now seen corresponding path program 1 times [2023-11-30 08:20:11,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:20:11,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886152791] [2023-11-30 08:20:11,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:20:11,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:20:11,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:20:11,974 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:20:11,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:20:11,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886152791] [2023-11-30 08:20:11,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886152791] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 08:20:11,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535217012] [2023-11-30 08:20:11,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:20:11,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:20:11,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:20:11,979 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:20:12,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-30 08:20:12,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:20:12,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 08:20:12,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:20:12,181 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:20:12,181 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 08:20:12,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535217012] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:20:12,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-30 08:20:12,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-30 08:20:12,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852296072] [2023-11-30 08:20:12,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:20:12,183 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 08:20:12,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:20:12,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 08:20:12,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-30 08:20:12,187 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 196 [2023-11-30 08:20:12,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 182 transitions, 471 flow. Second operand has 6 states, 6 states have (on average 156.16666666666666) internal successors, (937), 6 states have internal predecessors, (937), 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 08:20:12,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:20:12,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 196 [2023-11-30 08:20:12,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:20:12,357 INFO L124 PetriNetUnfolderBase]: 8/186 cut-off events. [2023-11-30 08:20:12,357 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-11-30 08:20:12,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 186 events. 8/186 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 236 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 251. Up to 32 conditions per place. [2023-11-30 08:20:12,361 INFO L140 encePairwiseOnDemand]: 184/196 looper letters, 31 selfloop transitions, 16 changer transitions 4/180 dead transitions. [2023-11-30 08:20:12,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 180 transitions, 557 flow [2023-11-30 08:20:12,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 08:20:12,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 08:20:12,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1127 transitions. [2023-11-30 08:20:12,366 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8214285714285714 [2023-11-30 08:20:12,366 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1127 transitions. [2023-11-30 08:20:12,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1127 transitions. [2023-11-30 08:20:12,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:20:12,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1127 transitions. [2023-11-30 08:20:12,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 161.0) internal successors, (1127), 7 states have internal predecessors, (1127), 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 08:20:12,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 196.0) internal successors, (1568), 8 states have internal predecessors, (1568), 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 08:20:12,374 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 196.0) internal successors, (1568), 8 states have internal predecessors, (1568), 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 08:20:12,375 INFO L307 CegarLoopForPetriNet]: 165 programPoint places, 8 predicate places. [2023-11-30 08:20:12,375 INFO L500 AbstractCegarLoop]: Abstraction has has 173 places, 180 transitions, 557 flow [2023-11-30 08:20:12,376 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 156.16666666666666) internal successors, (937), 6 states have internal predecessors, (937), 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 08:20:12,376 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:20:12,376 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:20:12,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-30 08:20:12,580 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:20:12,580 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 08:20:12,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:20:12,581 INFO L85 PathProgramCache]: Analyzing trace with hash -473945332, now seen corresponding path program 1 times [2023-11-30 08:20:12,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:20:12,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081368145] [2023-11-30 08:20:12,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:20:12,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:20:12,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:20:12,713 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:20:12,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:20:12,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081368145] [2023-11-30 08:20:12,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081368145] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 08:20:12,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [224619851] [2023-11-30 08:20:12,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:20:12,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:20:12,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:20:12,715 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:20:12,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-30 08:20:12,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:20:12,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 08:20:12,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:20:12,835 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:20:12,836 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:20:12,895 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:20:12,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [224619851] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:20:12,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 08:20:12,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-30 08:20:12,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895258160] [2023-11-30 08:20:12,896 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 08:20:12,897 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-30 08:20:12,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:20:12,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-30 08:20:12,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-30 08:20:12,901 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 196 [2023-11-30 08:20:12,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 180 transitions, 557 flow. Second operand has 12 states, 12 states have (on average 156.83333333333334) internal successors, (1882), 12 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:20:12,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:20:12,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 196 [2023-11-30 08:20:12,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:20:13,155 INFO L124 PetriNetUnfolderBase]: 14/256 cut-off events. [2023-11-30 08:20:13,156 INFO L125 PetriNetUnfolderBase]: For 100/100 co-relation queries the response was YES. [2023-11-30 08:20:13,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 256 events. 14/256 cut-off events. For 100/100 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 442 event pairs, 0 based on Foata normal form. 0/232 useless extension candidates. Maximal degree in co-relation 522. Up to 84 conditions per place. [2023-11-30 08:20:13,159 INFO L140 encePairwiseOnDemand]: 182/196 looper letters, 63 selfloop transitions, 36 changer transitions 4/232 dead transitions. [2023-11-30 08:20:13,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 232 transitions, 1067 flow [2023-11-30 08:20:13,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-30 08:20:13,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-30 08:20:13,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2261 transitions. [2023-11-30 08:20:13,164 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8239795918367347 [2023-11-30 08:20:13,164 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2261 transitions. [2023-11-30 08:20:13,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2261 transitions. [2023-11-30 08:20:13,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:20:13,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2261 transitions. [2023-11-30 08:20:13,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 161.5) internal successors, (2261), 14 states have internal predecessors, (2261), 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 08:20:13,176 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 196.0) internal successors, (2940), 15 states have internal predecessors, (2940), 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 08:20:13,176 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 196.0) internal successors, (2940), 15 states have internal predecessors, (2940), 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 08:20:13,177 INFO L307 CegarLoopForPetriNet]: 165 programPoint places, 21 predicate places. [2023-11-30 08:20:13,180 INFO L500 AbstractCegarLoop]: Abstraction has has 186 places, 232 transitions, 1067 flow [2023-11-30 08:20:13,181 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 156.83333333333334) internal successors, (1882), 12 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 08:20:13,181 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:20:13,182 INFO L232 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:20:13,189 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-30 08:20:13,387 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-30 08:20:13,388 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 08:20:13,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:20:13,388 INFO L85 PathProgramCache]: Analyzing trace with hash 440585314, now seen corresponding path program 2 times [2023-11-30 08:20:13,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:20:13,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901775089] [2023-11-30 08:20:13,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:20:13,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:20:13,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:20:13,614 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:20:13,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:20:13,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901775089] [2023-11-30 08:20:13,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901775089] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 08:20:13,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141336864] [2023-11-30 08:20:13,615 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 08:20:13,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:20:13,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:20:13,616 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:20:13,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-30 08:20:13,693 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 08:20:13,693 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 08:20:13,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-30 08:20:13,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:20:13,834 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-30 08:20:13,834 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:20:13,951 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-30 08:20:13,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141336864] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:20:13,951 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 08:20:13,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2023-11-30 08:20:13,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788044551] [2023-11-30 08:20:13,952 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 08:20:13,952 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-30 08:20:13,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:20:13,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-30 08:20:13,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2023-11-30 08:20:13,956 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 196 [2023-11-30 08:20:13,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 232 transitions, 1067 flow. Second operand has 18 states, 18 states have (on average 134.77777777777777) internal successors, (2426), 18 states have internal predecessors, (2426), 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 08:20:13,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:20:13,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 196 [2023-11-30 08:20:13,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:20:14,809 INFO L124 PetriNetUnfolderBase]: 35/375 cut-off events. [2023-11-30 08:20:14,809 INFO L125 PetriNetUnfolderBase]: For 283/283 co-relation queries the response was YES. [2023-11-30 08:20:14,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 969 conditions, 375 events. 35/375 cut-off events. For 283/283 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1034 event pairs, 8 based on Foata normal form. 0/328 useless extension candidates. Maximal degree in co-relation 805. Up to 119 conditions per place. [2023-11-30 08:20:14,812 INFO L140 encePairwiseOnDemand]: 173/196 looper letters, 86 selfloop transitions, 66 changer transitions 4/263 dead transitions. [2023-11-30 08:20:14,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 263 transitions, 1619 flow [2023-11-30 08:20:14,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-11-30 08:20:14,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2023-11-30 08:20:14,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 6575 transitions. [2023-11-30 08:20:14,827 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6846105789254477 [2023-11-30 08:20:14,827 INFO L72 ComplementDD]: Start complementDD. Operand 49 states and 6575 transitions. [2023-11-30 08:20:14,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 6575 transitions. [2023-11-30 08:20:14,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:20:14,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 49 states and 6575 transitions. [2023-11-30 08:20:14,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 50 states, 49 states have (on average 134.18367346938774) internal successors, (6575), 49 states have internal predecessors, (6575), 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 08:20:14,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 50 states, 50 states have (on average 196.0) internal successors, (9800), 50 states have internal predecessors, (9800), 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 08:20:14,861 INFO L81 ComplementDD]: Finished complementDD. Result has 50 states, 50 states have (on average 196.0) internal successors, (9800), 50 states have internal predecessors, (9800), 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 08:20:14,862 INFO L307 CegarLoopForPetriNet]: 165 programPoint places, 68 predicate places. [2023-11-30 08:20:14,862 INFO L500 AbstractCegarLoop]: Abstraction has has 233 places, 263 transitions, 1619 flow [2023-11-30 08:20:14,863 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 134.77777777777777) internal successors, (2426), 18 states have internal predecessors, (2426), 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 08:20:14,863 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:20:14,863 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:20:14,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-30 08:20:15,069 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:20:15,069 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 08:20:15,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:20:15,070 INFO L85 PathProgramCache]: Analyzing trace with hash -731656929, now seen corresponding path program 1 times [2023-11-30 08:20:15,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:20:15,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983263975] [2023-11-30 08:20:15,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:20:15,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:20:15,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:20:15,165 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 08:20:15,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:20:15,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983263975] [2023-11-30 08:20:15,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983263975] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:20:15,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:20:15,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:20:15,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277446260] [2023-11-30 08:20:15,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:20:15,169 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:20:15,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:20:15,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:20:15,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:20:15,171 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 196 [2023-11-30 08:20:15,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 263 transitions, 1619 flow. Second operand has 4 states, 4 states have (on average 170.75) internal successors, (683), 4 states have internal predecessors, (683), 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 08:20:15,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:20:15,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 196 [2023-11-30 08:20:15,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:20:15,265 INFO L124 PetriNetUnfolderBase]: 59/469 cut-off events. [2023-11-30 08:20:15,265 INFO L125 PetriNetUnfolderBase]: For 632/642 co-relation queries the response was YES. [2023-11-30 08:20:15,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1297 conditions, 469 events. 59/469 cut-off events. For 632/642 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1725 event pairs, 16 based on Foata normal form. 0/412 useless extension candidates. Maximal degree in co-relation 846. Up to 139 conditions per place. [2023-11-30 08:20:15,268 INFO L140 encePairwiseOnDemand]: 190/196 looper letters, 24 selfloop transitions, 4 changer transitions 4/276 dead transitions. [2023-11-30 08:20:15,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 276 transitions, 1749 flow [2023-11-30 08:20:15,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 08:20:15,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 08:20:15,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 875 transitions. [2023-11-30 08:20:15,271 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8928571428571429 [2023-11-30 08:20:15,271 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 875 transitions. [2023-11-30 08:20:15,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 875 transitions. [2023-11-30 08:20:15,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:20:15,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 875 transitions. [2023-11-30 08:20:15,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 175.0) internal successors, (875), 5 states have internal predecessors, (875), 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 08:20:15,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 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 08:20:15,276 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 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 08:20:15,278 INFO L307 CegarLoopForPetriNet]: 165 programPoint places, 72 predicate places. [2023-11-30 08:20:15,278 INFO L500 AbstractCegarLoop]: Abstraction has has 237 places, 276 transitions, 1749 flow [2023-11-30 08:20:15,278 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 170.75) internal successors, (683), 4 states have internal predecessors, (683), 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 08:20:15,278 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:20:15,278 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:20:15,279 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 08:20:15,279 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 08:20:15,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:20:15,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1743782625, now seen corresponding path program 1 times [2023-11-30 08:20:15,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:20:15,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883396692] [2023-11-30 08:20:15,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:20:15,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:20:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:20:15,360 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 08:20:15,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:20:15,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883396692] [2023-11-30 08:20:15,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883396692] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:20:15,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:20:15,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 08:20:15,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389997201] [2023-11-30 08:20:15,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:20:15,364 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 08:20:15,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:20:15,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 08:20:15,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 08:20:15,365 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 196 [2023-11-30 08:20:15,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 276 transitions, 1749 flow. Second operand has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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 08:20:15,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:20:15,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 196 [2023-11-30 08:20:15,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:20:15,508 INFO L124 PetriNetUnfolderBase]: 114/664 cut-off events. [2023-11-30 08:20:15,508 INFO L125 PetriNetUnfolderBase]: For 2693/2871 co-relation queries the response was YES. [2023-11-30 08:20:15,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1897 conditions, 664 events. 114/664 cut-off events. For 2693/2871 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3363 event pairs, 28 based on Foata normal form. 6/567 useless extension candidates. Maximal degree in co-relation 861. Up to 173 conditions per place. [2023-11-30 08:20:15,512 INFO L140 encePairwiseOnDemand]: 190/196 looper letters, 30 selfloop transitions, 4 changer transitions 4/291 dead transitions. [2023-11-30 08:20:15,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 291 transitions, 1929 flow [2023-11-30 08:20:15,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 08:20:15,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 08:20:15,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 874 transitions. [2023-11-30 08:20:15,514 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8918367346938776 [2023-11-30 08:20:15,514 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 874 transitions. [2023-11-30 08:20:15,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 874 transitions. [2023-11-30 08:20:15,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:20:15,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 874 transitions. [2023-11-30 08:20:15,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 174.8) internal successors, (874), 5 states have internal predecessors, (874), 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 08:20:15,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 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 08:20:15,518 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 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 08:20:15,520 INFO L307 CegarLoopForPetriNet]: 165 programPoint places, 76 predicate places. [2023-11-30 08:20:15,520 INFO L500 AbstractCegarLoop]: Abstraction has has 241 places, 291 transitions, 1929 flow [2023-11-30 08:20:15,521 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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 08:20:15,521 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:20:15,521 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:20:15,521 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-30 08:20:15,521 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 08:20:15,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:20:15,521 INFO L85 PathProgramCache]: Analyzing trace with hash -473797084, now seen corresponding path program 1 times [2023-11-30 08:20:15,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:20:15,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498692426] [2023-11-30 08:20:15,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:20:15,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:20:15,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:20:15,653 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-30 08:20:15,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:20:15,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498692426] [2023-11-30 08:20:15,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498692426] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:20:15,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:20:15,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:20:15,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328219787] [2023-11-30 08:20:15,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:20:15,654 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-30 08:20:15,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:20:15,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-30 08:20:15,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-30 08:20:15,656 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 196 [2023-11-30 08:20:15,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 291 transitions, 1929 flow. Second operand has 7 states, 7 states have (on average 144.57142857142858) internal successors, (1012), 7 states have internal predecessors, (1012), 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 08:20:15,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:20:15,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 196 [2023-11-30 08:20:15,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:20:15,875 INFO L124 PetriNetUnfolderBase]: 182/953 cut-off events. [2023-11-30 08:20:15,875 INFO L125 PetriNetUnfolderBase]: For 4945/5473 co-relation queries the response was YES. [2023-11-30 08:20:15,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3153 conditions, 953 events. 182/953 cut-off events. For 4945/5473 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 5560 event pairs, 47 based on Foata normal form. 7/808 useless extension candidates. Maximal degree in co-relation 1443. Up to 256 conditions per place. [2023-11-30 08:20:15,882 INFO L140 encePairwiseOnDemand]: 183/196 looper letters, 185 selfloop transitions, 14 changer transitions 6/360 dead transitions. [2023-11-30 08:20:15,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 360 transitions, 2985 flow [2023-11-30 08:20:15,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 08:20:15,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 08:20:15,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1484 transitions. [2023-11-30 08:20:15,886 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7571428571428571 [2023-11-30 08:20:15,886 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1484 transitions. [2023-11-30 08:20:15,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1484 transitions. [2023-11-30 08:20:15,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:20:15,887 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1484 transitions. [2023-11-30 08:20:15,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 148.4) internal successors, (1484), 10 states have internal predecessors, (1484), 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 08:20:15,892 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 196.0) internal successors, (2156), 11 states have internal predecessors, (2156), 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 08:20:15,904 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 196.0) internal successors, (2156), 11 states have internal predecessors, (2156), 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 08:20:15,904 INFO L307 CegarLoopForPetriNet]: 165 programPoint places, 85 predicate places. [2023-11-30 08:20:15,904 INFO L500 AbstractCegarLoop]: Abstraction has has 250 places, 360 transitions, 2985 flow [2023-11-30 08:20:15,905 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 144.57142857142858) internal successors, (1012), 7 states have internal predecessors, (1012), 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 08:20:15,905 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:20:15,905 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:20:15,906 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 08:20:15,906 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 08:20:15,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:20:15,906 INFO L85 PathProgramCache]: Analyzing trace with hash -396652009, now seen corresponding path program 1 times [2023-11-30 08:20:15,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:20:15,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978454126] [2023-11-30 08:20:15,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:20:15,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:20:15,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:20:16,037 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-30 08:20:16,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:20:16,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978454126] [2023-11-30 08:20:16,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978454126] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:20:16,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:20:16,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:20:16,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783665128] [2023-11-30 08:20:16,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:20:16,038 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-30 08:20:16,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:20:16,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-30 08:20:16,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-30 08:20:16,039 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 196 [2023-11-30 08:20:16,040 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 360 transitions, 2985 flow. Second operand has 7 states, 7 states have (on average 144.71428571428572) internal successors, (1013), 7 states have internal predecessors, (1013), 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 08:20:16,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:20:16,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 196 [2023-11-30 08:20:16,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:20:16,270 INFO L124 PetriNetUnfolderBase]: 199/997 cut-off events. [2023-11-30 08:20:16,270 INFO L125 PetriNetUnfolderBase]: For 3548/3598 co-relation queries the response was YES. [2023-11-30 08:20:16,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3547 conditions, 997 events. 199/997 cut-off events. For 3548/3598 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 5596 event pairs, 49 based on Foata normal form. 0/837 useless extension candidates. Maximal degree in co-relation 1629. Up to 238 conditions per place. [2023-11-30 08:20:16,277 INFO L140 encePairwiseOnDemand]: 183/196 looper letters, 163 selfloop transitions, 14 changer transitions 26/358 dead transitions. [2023-11-30 08:20:16,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 358 transitions, 3334 flow [2023-11-30 08:20:16,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 08:20:16,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 08:20:16,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1482 transitions. [2023-11-30 08:20:16,281 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7561224489795918 [2023-11-30 08:20:16,281 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1482 transitions. [2023-11-30 08:20:16,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1482 transitions. [2023-11-30 08:20:16,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:20:16,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1482 transitions. [2023-11-30 08:20:16,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 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 08:20:16,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 196.0) internal successors, (2156), 11 states have internal predecessors, (2156), 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 08:20:16,287 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 196.0) internal successors, (2156), 11 states have internal predecessors, (2156), 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 08:20:16,288 INFO L307 CegarLoopForPetriNet]: 165 programPoint places, 94 predicate places. [2023-11-30 08:20:16,288 INFO L500 AbstractCegarLoop]: Abstraction has has 259 places, 358 transitions, 3334 flow [2023-11-30 08:20:16,288 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 144.71428571428572) internal successors, (1013), 7 states have internal predecessors, (1013), 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 08:20:16,288 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:20:16,288 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:20:16,288 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-30 08:20:16,289 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 08:20:16,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:20:16,289 INFO L85 PathProgramCache]: Analyzing trace with hash 583902870, now seen corresponding path program 1 times [2023-11-30 08:20:16,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:20:16,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521393842] [2023-11-30 08:20:16,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:20:16,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:20:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:20:16,405 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-30 08:20:16,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:20:16,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521393842] [2023-11-30 08:20:16,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521393842] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:20:16,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:20:16,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:20:16,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345122549] [2023-11-30 08:20:16,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:20:16,406 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-30 08:20:16,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:20:16,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-30 08:20:16,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-30 08:20:16,407 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 196 [2023-11-30 08:20:16,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 358 transitions, 3334 flow. Second operand has 7 states, 7 states have (on average 145.14285714285714) internal successors, (1016), 7 states have internal predecessors, (1016), 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 08:20:16,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:20:16,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 196 [2023-11-30 08:20:16,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:20:16,729 INFO L124 PetriNetUnfolderBase]: 244/1273 cut-off events. [2023-11-30 08:20:16,729 INFO L125 PetriNetUnfolderBase]: For 6234/6336 co-relation queries the response was YES. [2023-11-30 08:20:16,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4845 conditions, 1273 events. 244/1273 cut-off events. For 6234/6336 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 7880 event pairs, 62 based on Foata normal form. 0/1086 useless extension candidates. Maximal degree in co-relation 1969. Up to 292 conditions per place. [2023-11-30 08:20:16,739 INFO L140 encePairwiseOnDemand]: 183/196 looper letters, 170 selfloop transitions, 19 changer transitions 35/379 dead transitions. [2023-11-30 08:20:16,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 379 transitions, 4087 flow [2023-11-30 08:20:16,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 08:20:16,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 08:20:16,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1469 transitions. [2023-11-30 08:20:16,742 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7494897959183674 [2023-11-30 08:20:16,743 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1469 transitions. [2023-11-30 08:20:16,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1469 transitions. [2023-11-30 08:20:16,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:20:16,743 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1469 transitions. [2023-11-30 08:20:16,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 146.9) internal successors, (1469), 10 states have internal predecessors, (1469), 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 08:20:16,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 196.0) internal successors, (2156), 11 states have internal predecessors, (2156), 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 08:20:16,749 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 196.0) internal successors, (2156), 11 states have internal predecessors, (2156), 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 08:20:16,749 INFO L307 CegarLoopForPetriNet]: 165 programPoint places, 103 predicate places. [2023-11-30 08:20:16,749 INFO L500 AbstractCegarLoop]: Abstraction has has 268 places, 379 transitions, 4087 flow [2023-11-30 08:20:16,750 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 145.14285714285714) internal successors, (1016), 7 states have internal predecessors, (1016), 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 08:20:16,750 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:20:16,750 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:20:16,750 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-30 08:20:16,750 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 08:20:16,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:20:16,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1587752201, now seen corresponding path program 1 times [2023-11-30 08:20:16,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:20:16,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527424877] [2023-11-30 08:20:16,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:20:16,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:20:16,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:20:16,883 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-30 08:20:16,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:20:16,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527424877] [2023-11-30 08:20:16,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527424877] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 08:20:16,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 08:20:16,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 08:20:16,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283094094] [2023-11-30 08:20:16,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 08:20:16,884 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-30 08:20:16,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:20:16,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-30 08:20:16,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-30 08:20:16,886 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 196 [2023-11-30 08:20:16,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 379 transitions, 4087 flow. Second operand has 7 states, 7 states have (on average 145.28571428571428) internal successors, (1017), 7 states have internal predecessors, (1017), 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 08:20:16,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:20:16,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 196 [2023-11-30 08:20:16,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:20:17,176 INFO L124 PetriNetUnfolderBase]: 203/1081 cut-off events. [2023-11-30 08:20:17,176 INFO L125 PetriNetUnfolderBase]: For 6603/6783 co-relation queries the response was YES. [2023-11-30 08:20:17,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4641 conditions, 1081 events. 203/1081 cut-off events. For 6603/6783 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 6260 event pairs, 55 based on Foata normal form. 2/921 useless extension candidates. Maximal degree in co-relation 2043. Up to 254 conditions per place. [2023-11-30 08:20:17,185 INFO L140 encePairwiseOnDemand]: 183/196 looper letters, 160 selfloop transitions, 15 changer transitions 42/372 dead transitions. [2023-11-30 08:20:17,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 372 transitions, 4396 flow [2023-11-30 08:20:17,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-30 08:20:17,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-30 08:20:17,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1467 transitions. [2023-11-30 08:20:17,188 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7484693877551021 [2023-11-30 08:20:17,188 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1467 transitions. [2023-11-30 08:20:17,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1467 transitions. [2023-11-30 08:20:17,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:20:17,188 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1467 transitions. [2023-11-30 08:20:17,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 146.7) internal successors, (1467), 10 states have internal predecessors, (1467), 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 08:20:17,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 196.0) internal successors, (2156), 11 states have internal predecessors, (2156), 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 08:20:17,193 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 196.0) internal successors, (2156), 11 states have internal predecessors, (2156), 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 08:20:17,193 INFO L307 CegarLoopForPetriNet]: 165 programPoint places, 112 predicate places. [2023-11-30 08:20:17,194 INFO L500 AbstractCegarLoop]: Abstraction has has 277 places, 372 transitions, 4396 flow [2023-11-30 08:20:17,194 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 145.28571428571428) internal successors, (1017), 7 states have internal predecessors, (1017), 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 08:20:17,194 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:20:17,194 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:20:17,194 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-30 08:20:17,194 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 08:20:17,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:20:17,195 INFO L85 PathProgramCache]: Analyzing trace with hash 72879776, now seen corresponding path program 1 times [2023-11-30 08:20:17,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:20:17,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107527] [2023-11-30 08:20:17,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:20:17,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:20:17,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:20:17,288 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 08:20:17,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:20:17,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107527] [2023-11-30 08:20:17,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107527] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 08:20:17,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749475431] [2023-11-30 08:20:17,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:20:17,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:20:17,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:20:17,290 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:20:17,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-30 08:20:17,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:20:17,392 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-30 08:20:17,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:20:17,679 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 08:20:17,679 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:20:17,970 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 08:20:17,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749475431] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:20:17,970 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 08:20:17,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 11] total 23 [2023-11-30 08:20:17,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356161625] [2023-11-30 08:20:17,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 08:20:17,971 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-30 08:20:17,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:20:17,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-30 08:20:17,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=413, Unknown=0, NotChecked=0, Total=506 [2023-11-30 08:20:17,974 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 196 [2023-11-30 08:20:17,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 372 transitions, 4396 flow. Second operand has 23 states, 23 states have (on average 130.82608695652175) internal successors, (3009), 23 states have internal predecessors, (3009), 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 08:20:17,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:20:17,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 196 [2023-11-30 08:20:17,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:20:18,732 INFO L124 PetriNetUnfolderBase]: 366/1650 cut-off events. [2023-11-30 08:20:18,732 INFO L125 PetriNetUnfolderBase]: For 12549/12927 co-relation queries the response was YES. [2023-11-30 08:20:18,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7764 conditions, 1650 events. 366/1650 cut-off events. For 12549/12927 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 11153 event pairs, 81 based on Foata normal form. 4/1395 useless extension candidates. Maximal degree in co-relation 2625. Up to 438 conditions per place. [2023-11-30 08:20:18,746 INFO L140 encePairwiseOnDemand]: 175/196 looper letters, 208 selfloop transitions, 64 changer transitions 55/435 dead transitions. [2023-11-30 08:20:18,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 435 transitions, 6071 flow [2023-11-30 08:20:18,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-30 08:20:18,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2023-11-30 08:20:18,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 3380 transitions. [2023-11-30 08:20:18,751 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6632653061224489 [2023-11-30 08:20:18,751 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 3380 transitions. [2023-11-30 08:20:18,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 3380 transitions. [2023-11-30 08:20:18,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:20:18,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 3380 transitions. [2023-11-30 08:20:18,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 130.0) internal successors, (3380), 26 states have internal predecessors, (3380), 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 08:20:18,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 196.0) internal successors, (5292), 27 states have internal predecessors, (5292), 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 08:20:18,763 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 196.0) internal successors, (5292), 27 states have internal predecessors, (5292), 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 08:20:18,763 INFO L307 CegarLoopForPetriNet]: 165 programPoint places, 136 predicate places. [2023-11-30 08:20:18,764 INFO L500 AbstractCegarLoop]: Abstraction has has 301 places, 435 transitions, 6071 flow [2023-11-30 08:20:18,764 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 130.82608695652175) internal successors, (3009), 23 states have internal predecessors, (3009), 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 08:20:18,764 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:20:18,765 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:20:18,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-30 08:20:18,970 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:20:18,970 INFO L425 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 08:20:18,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:20:18,971 INFO L85 PathProgramCache]: Analyzing trace with hash 163440019, now seen corresponding path program 1 times [2023-11-30 08:20:18,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:20:18,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227822382] [2023-11-30 08:20:18,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:20:18,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:20:18,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:20:19,090 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 08:20:19,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:20:19,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227822382] [2023-11-30 08:20:19,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227822382] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 08:20:19,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79077673] [2023-11-30 08:20:19,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:20:19,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:20:19,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:20:19,091 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:20:19,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-30 08:20:19,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:20:19,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-30 08:20:19,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:20:19,551 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 08:20:19,552 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:20:19,859 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-30 08:20:19,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79077673] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:20:19,859 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 08:20:19,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 11] total 23 [2023-11-30 08:20:19,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487136552] [2023-11-30 08:20:19,860 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 08:20:19,860 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-30 08:20:19,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:20:19,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-30 08:20:19,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=413, Unknown=0, NotChecked=0, Total=506 [2023-11-30 08:20:19,863 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 196 [2023-11-30 08:20:19,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 435 transitions, 6071 flow. Second operand has 23 states, 23 states have (on average 131.7391304347826) internal successors, (3030), 23 states have internal predecessors, (3030), 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 08:20:19,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:20:19,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 196 [2023-11-30 08:20:19,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:20:20,890 INFO L124 PetriNetUnfolderBase]: 642/2598 cut-off events. [2023-11-30 08:20:20,890 INFO L125 PetriNetUnfolderBase]: For 23568/24746 co-relation queries the response was YES. [2023-11-30 08:20:20,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13777 conditions, 2598 events. 642/2598 cut-off events. For 23568/24746 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 20387 event pairs, 133 based on Foata normal form. 58/2244 useless extension candidates. Maximal degree in co-relation 3765. Up to 771 conditions per place. [2023-11-30 08:20:20,913 INFO L140 encePairwiseOnDemand]: 175/196 looper letters, 371 selfloop transitions, 51 changer transitions 117/653 dead transitions. [2023-11-30 08:20:20,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 653 transitions, 10957 flow [2023-11-30 08:20:20,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-30 08:20:20,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2023-11-30 08:20:20,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 3416 transitions. [2023-11-30 08:20:20,918 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6703296703296703 [2023-11-30 08:20:20,918 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 3416 transitions. [2023-11-30 08:20:20,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 3416 transitions. [2023-11-30 08:20:20,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:20:20,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 3416 transitions. [2023-11-30 08:20:20,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 131.3846153846154) internal successors, (3416), 26 states have internal predecessors, (3416), 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 08:20:20,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 196.0) internal successors, (5292), 27 states have internal predecessors, (5292), 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 08:20:20,929 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 196.0) internal successors, (5292), 27 states have internal predecessors, (5292), 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 08:20:20,929 INFO L307 CegarLoopForPetriNet]: 165 programPoint places, 160 predicate places. [2023-11-30 08:20:20,929 INFO L500 AbstractCegarLoop]: Abstraction has has 325 places, 653 transitions, 10957 flow [2023-11-30 08:20:20,930 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 131.7391304347826) internal successors, (3030), 23 states have internal predecessors, (3030), 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 08:20:20,930 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:20:20,931 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:20:20,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-30 08:20:21,136 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-30 08:20:21,137 INFO L425 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 08:20:21,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:20:21,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1560357617, now seen corresponding path program 1 times [2023-11-30 08:20:21,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:20:21,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643033313] [2023-11-30 08:20:21,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:20:21,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:20:21,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:20:21,259 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-30 08:20:21,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:20:21,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643033313] [2023-11-30 08:20:21,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643033313] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 08:20:21,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620520558] [2023-11-30 08:20:21,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:20:21,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:20:21,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:20:21,261 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:20:21,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-30 08:20:21,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:20:21,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-30 08:20:21,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:20:21,729 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-30 08:20:21,729 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:20:22,026 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-30 08:20:22,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620520558] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:20:22,027 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 08:20:22,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 11] total 23 [2023-11-30 08:20:22,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772100300] [2023-11-30 08:20:22,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 08:20:22,028 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-30 08:20:22,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:20:22,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-30 08:20:22,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=413, Unknown=0, NotChecked=0, Total=506 [2023-11-30 08:20:22,031 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 196 [2023-11-30 08:20:22,032 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 653 transitions, 10957 flow. Second operand has 23 states, 23 states have (on average 131.69565217391303) internal successors, (3029), 23 states have internal predecessors, (3029), 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 08:20:22,033 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:20:22,033 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 196 [2023-11-30 08:20:22,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:20:23,167 INFO L124 PetriNetUnfolderBase]: 694/2752 cut-off events. [2023-11-30 08:20:23,169 INFO L125 PetriNetUnfolderBase]: For 29442/30941 co-relation queries the response was YES. [2023-11-30 08:20:23,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16040 conditions, 2752 events. 694/2752 cut-off events. For 29442/30941 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 21227 event pairs, 141 based on Foata normal form. 51/2363 useless extension candidates. Maximal degree in co-relation 4910. Up to 835 conditions per place. [2023-11-30 08:20:23,198 INFO L140 encePairwiseOnDemand]: 175/196 looper letters, 361 selfloop transitions, 52 changer transitions 176/696 dead transitions. [2023-11-30 08:20:23,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 696 transitions, 12760 flow [2023-11-30 08:20:23,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-30 08:20:23,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2023-11-30 08:20:23,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 3559 transitions. [2023-11-30 08:20:23,203 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6725245653817082 [2023-11-30 08:20:23,203 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 3559 transitions. [2023-11-30 08:20:23,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 3559 transitions. [2023-11-30 08:20:23,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:20:23,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 3559 transitions. [2023-11-30 08:20:23,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 131.8148148148148) internal successors, (3559), 27 states have internal predecessors, (3559), 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 08:20:23,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 196.0) internal successors, (5488), 28 states have internal predecessors, (5488), 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 08:20:23,215 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 196.0) internal successors, (5488), 28 states have internal predecessors, (5488), 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 08:20:23,216 INFO L307 CegarLoopForPetriNet]: 165 programPoint places, 186 predicate places. [2023-11-30 08:20:23,216 INFO L500 AbstractCegarLoop]: Abstraction has has 351 places, 696 transitions, 12760 flow [2023-11-30 08:20:23,217 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 131.69565217391303) internal successors, (3029), 23 states have internal predecessors, (3029), 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 08:20:23,217 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:20:23,217 INFO L232 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:20:23,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-30 08:20:23,423 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:20:23,423 INFO L425 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 08:20:23,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:20:23,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1301887352, now seen corresponding path program 1 times [2023-11-30 08:20:23,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:20:23,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146291316] [2023-11-30 08:20:23,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:20:23,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:20:23,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:20:23,849 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:20:23,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:20:23,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146291316] [2023-11-30 08:20:23,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146291316] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 08:20:23,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825395519] [2023-11-30 08:20:23,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:20:23,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:20:23,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:20:23,858 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:20:23,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-30 08:20:23,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:20:23,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-30 08:20:23,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:20:24,071 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:20:24,071 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:20:24,305 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:20:24,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825395519] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:20:24,305 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 08:20:24,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 31 [2023-11-30 08:20:24,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316856927] [2023-11-30 08:20:24,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 08:20:24,306 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-11-30 08:20:24,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:20:24,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-11-30 08:20:24,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2023-11-30 08:20:24,311 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 196 [2023-11-30 08:20:24,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 696 transitions, 12760 flow. Second operand has 32 states, 32 states have (on average 157.40625) internal successors, (5037), 32 states have internal predecessors, (5037), 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 08:20:24,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:20:24,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 196 [2023-11-30 08:20:24,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:20:25,620 INFO L124 PetriNetUnfolderBase]: 726/3144 cut-off events. [2023-11-30 08:20:25,620 INFO L125 PetriNetUnfolderBase]: For 38558/39871 co-relation queries the response was YES. [2023-11-30 08:20:25,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20055 conditions, 3144 events. 726/3144 cut-off events. For 38558/39871 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 23516 event pairs, 141 based on Foata normal form. 9/2681 useless extension candidates. Maximal degree in co-relation 7943. Up to 1003 conditions per place. [2023-11-30 08:20:25,643 INFO L140 encePairwiseOnDemand]: 183/196 looper letters, 327 selfloop transitions, 203 changer transitions 208/989 dead transitions. [2023-11-30 08:20:25,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 989 transitions, 20292 flow [2023-11-30 08:20:25,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-11-30 08:20:25,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2023-11-30 08:20:25,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 7062 transitions. [2023-11-30 08:20:25,650 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8188775510204082 [2023-11-30 08:20:25,650 INFO L72 ComplementDD]: Start complementDD. Operand 44 states and 7062 transitions. [2023-11-30 08:20:25,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 7062 transitions. [2023-11-30 08:20:25,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:20:25,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 44 states and 7062 transitions. [2023-11-30 08:20:25,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 45 states, 44 states have (on average 160.5) internal successors, (7062), 44 states have internal predecessors, (7062), 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 08:20:25,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 45 states, 45 states have (on average 196.0) internal successors, (8820), 45 states have internal predecessors, (8820), 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 08:20:25,673 INFO L81 ComplementDD]: Finished complementDD. Result has 45 states, 45 states have (on average 196.0) internal successors, (8820), 45 states have internal predecessors, (8820), 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 08:20:25,674 INFO L307 CegarLoopForPetriNet]: 165 programPoint places, 229 predicate places. [2023-11-30 08:20:25,674 INFO L500 AbstractCegarLoop]: Abstraction has has 394 places, 989 transitions, 20292 flow [2023-11-30 08:20:25,675 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 157.40625) internal successors, (5037), 32 states have internal predecessors, (5037), 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 08:20:25,675 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:20:25,675 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:20:25,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-30 08:20:25,881 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:20:25,882 INFO L425 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 08:20:25,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:20:25,882 INFO L85 PathProgramCache]: Analyzing trace with hash -691675351, now seen corresponding path program 1 times [2023-11-30 08:20:25,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:20:25,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717365347] [2023-11-30 08:20:25,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:20:25,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:20:25,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:20:25,985 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-30 08:20:25,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:20:25,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717365347] [2023-11-30 08:20:25,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717365347] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 08:20:25,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467265328] [2023-11-30 08:20:25,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:20:25,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:20:25,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:20:25,987 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:20:26,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-30 08:20:26,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:20:26,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-30 08:20:26,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:20:26,397 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-30 08:20:26,397 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:20:26,684 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-30 08:20:26,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1467265328] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:20:26,684 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 08:20:26,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 11] total 23 [2023-11-30 08:20:26,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608363512] [2023-11-30 08:20:26,685 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 08:20:26,685 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-30 08:20:26,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:20:26,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-30 08:20:26,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=413, Unknown=0, NotChecked=0, Total=506 [2023-11-30 08:20:26,688 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 196 [2023-11-30 08:20:26,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 989 transitions, 20292 flow. Second operand has 23 states, 23 states have (on average 131.04347826086956) internal successors, (3014), 23 states have internal predecessors, (3014), 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 08:20:26,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:20:26,690 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 196 [2023-11-30 08:20:26,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:20:27,913 INFO L124 PetriNetUnfolderBase]: 811/3305 cut-off events. [2023-11-30 08:20:27,913 INFO L125 PetriNetUnfolderBase]: For 44694/47189 co-relation queries the response was YES. [2023-11-30 08:20:27,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22880 conditions, 3305 events. 811/3305 cut-off events. For 44694/47189 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 25060 event pairs, 151 based on Foata normal form. 45/2808 useless extension candidates. Maximal degree in co-relation 8569. Up to 1093 conditions per place. [2023-11-30 08:20:27,943 INFO L140 encePairwiseOnDemand]: 175/196 looper letters, 525 selfloop transitions, 141 changer transitions 264/1044 dead transitions. [2023-11-30 08:20:27,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 1044 transitions, 23047 flow [2023-11-30 08:20:27,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-30 08:20:27,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2023-11-30 08:20:27,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 3518 transitions. [2023-11-30 08:20:27,959 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6647770219198791 [2023-11-30 08:20:27,959 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 3518 transitions. [2023-11-30 08:20:27,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 3518 transitions. [2023-11-30 08:20:27,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:20:27,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 3518 transitions. [2023-11-30 08:20:27,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 130.2962962962963) internal successors, (3518), 27 states have internal predecessors, (3518), 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 08:20:27,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 196.0) internal successors, (5488), 28 states have internal predecessors, (5488), 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 08:20:27,979 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 196.0) internal successors, (5488), 28 states have internal predecessors, (5488), 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 08:20:27,980 INFO L307 CegarLoopForPetriNet]: 165 programPoint places, 255 predicate places. [2023-11-30 08:20:27,980 INFO L500 AbstractCegarLoop]: Abstraction has has 420 places, 1044 transitions, 23047 flow [2023-11-30 08:20:27,981 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 131.04347826086956) internal successors, (3014), 23 states have internal predecessors, (3014), 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 08:20:27,981 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:20:27,981 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:20:27,990 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-30 08:20:28,187 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-30 08:20:28,188 INFO L425 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 08:20:28,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:20:28,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1578192594, now seen corresponding path program 2 times [2023-11-30 08:20:28,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:20:28,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559839377] [2023-11-30 08:20:28,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:20:28,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:20:28,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:20:28,439 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-30 08:20:28,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:20:28,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559839377] [2023-11-30 08:20:28,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559839377] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 08:20:28,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848747850] [2023-11-30 08:20:28,439 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 08:20:28,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:20:28,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:20:28,441 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:20:28,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-30 08:20:28,531 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 08:20:28,532 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 08:20:28,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 08:20:28,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:20:28,671 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-30 08:20:28,672 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:20:28,808 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-30 08:20:28,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848747850] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:20:28,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 08:20:28,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5] total 19 [2023-11-30 08:20:28,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2255637] [2023-11-30 08:20:28,809 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 08:20:28,809 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-30 08:20:28,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:20:28,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-30 08:20:28,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2023-11-30 08:20:28,812 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 196 [2023-11-30 08:20:28,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 1044 transitions, 23047 flow. Second operand has 19 states, 19 states have (on average 126.89473684210526) internal successors, (2411), 19 states have internal predecessors, (2411), 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 08:20:28,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:20:28,813 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 196 [2023-11-30 08:20:28,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:20:31,029 INFO L124 PetriNetUnfolderBase]: 1327/5270 cut-off events. [2023-11-30 08:20:31,030 INFO L125 PetriNetUnfolderBase]: For 88008/93612 co-relation queries the response was YES. [2023-11-30 08:20:31,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38328 conditions, 5270 events. 1327/5270 cut-off events. For 88008/93612 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 45551 event pairs, 240 based on Foata normal form. 218/4644 useless extension candidates. Maximal degree in co-relation 11719. Up to 1740 conditions per place. [2023-11-30 08:20:31,068 INFO L140 encePairwiseOnDemand]: 170/196 looper letters, 679 selfloop transitions, 253 changer transitions 368/1408 dead transitions. [2023-11-30 08:20:31,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 474 places, 1408 transitions, 34714 flow [2023-11-30 08:20:31,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-11-30 08:20:31,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2023-11-30 08:20:31,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 6977 transitions. [2023-11-30 08:20:31,074 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6356596209912536 [2023-11-30 08:20:31,074 INFO L72 ComplementDD]: Start complementDD. Operand 56 states and 6977 transitions. [2023-11-30 08:20:31,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 6977 transitions. [2023-11-30 08:20:31,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:20:31,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 56 states and 6977 transitions. [2023-11-30 08:20:31,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 57 states, 56 states have (on average 124.58928571428571) internal successors, (6977), 56 states have internal predecessors, (6977), 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 08:20:31,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 57 states, 57 states have (on average 196.0) internal successors, (11172), 57 states have internal predecessors, (11172), 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 08:20:31,093 INFO L81 ComplementDD]: Finished complementDD. Result has 57 states, 57 states have (on average 196.0) internal successors, (11172), 57 states have internal predecessors, (11172), 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 08:20:31,094 INFO L307 CegarLoopForPetriNet]: 165 programPoint places, 309 predicate places. [2023-11-30 08:20:31,094 INFO L500 AbstractCegarLoop]: Abstraction has has 474 places, 1408 transitions, 34714 flow [2023-11-30 08:20:31,094 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 126.89473684210526) internal successors, (2411), 19 states have internal predecessors, (2411), 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 08:20:31,094 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:20:31,094 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:20:31,100 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-30 08:20:31,300 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-30 08:20:31,300 INFO L425 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 08:20:31,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:20:31,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1589328901, now seen corresponding path program 2 times [2023-11-30 08:20:31,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:20:31,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087226606] [2023-11-30 08:20:31,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:20:31,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:20:31,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:20:31,580 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-30 08:20:31,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:20:31,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087226606] [2023-11-30 08:20:31,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087226606] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 08:20:31,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295582258] [2023-11-30 08:20:31,581 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 08:20:31,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:20:31,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:20:31,582 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:20:31,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-30 08:20:31,689 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 08:20:31,689 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 08:20:31,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-30 08:20:31,692 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:20:31,872 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-30 08:20:31,872 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:20:32,041 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-30 08:20:32,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1295582258] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:20:32,041 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 08:20:32,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5] total 19 [2023-11-30 08:20:32,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131939284] [2023-11-30 08:20:32,041 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 08:20:32,042 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-30 08:20:32,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:20:32,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-30 08:20:32,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2023-11-30 08:20:32,044 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 196 [2023-11-30 08:20:32,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 1408 transitions, 34714 flow. Second operand has 19 states, 19 states have (on average 125.21052631578948) internal successors, (2379), 19 states have internal predecessors, (2379), 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 08:20:32,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:20:32,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 196 [2023-11-30 08:20:32,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:20:34,918 INFO L124 PetriNetUnfolderBase]: 1993/7635 cut-off events. [2023-11-30 08:20:34,918 INFO L125 PetriNetUnfolderBase]: For 139218/148454 co-relation queries the response was YES. [2023-11-30 08:20:34,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58127 conditions, 7635 events. 1993/7635 cut-off events. For 139218/148454 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 73647 event pairs, 373 based on Foata normal form. 300/6701 useless extension candidates. Maximal degree in co-relation 13269. Up to 2570 conditions per place. [2023-11-30 08:20:34,957 INFO L140 encePairwiseOnDemand]: 175/196 looper letters, 560 selfloop transitions, 46 changer transitions 1121/1778 dead transitions. [2023-11-30 08:20:34,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 512 places, 1778 transitions, 48096 flow [2023-11-30 08:20:34,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-11-30 08:20:34,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2023-11-30 08:20:34,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 4908 transitions. [2023-11-30 08:20:34,962 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6260204081632653 [2023-11-30 08:20:34,962 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 4908 transitions. [2023-11-30 08:20:34,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 4908 transitions. [2023-11-30 08:20:34,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:20:34,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 4908 transitions. [2023-11-30 08:20:34,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 41 states, 40 states have (on average 122.7) internal successors, (4908), 40 states have internal predecessors, (4908), 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 08:20:34,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 41 states, 41 states have (on average 196.0) internal successors, (8036), 41 states have internal predecessors, (8036), 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 08:20:34,974 INFO L81 ComplementDD]: Finished complementDD. Result has 41 states, 41 states have (on average 196.0) internal successors, (8036), 41 states have internal predecessors, (8036), 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 08:20:34,975 INFO L307 CegarLoopForPetriNet]: 165 programPoint places, 347 predicate places. [2023-11-30 08:20:34,975 INFO L500 AbstractCegarLoop]: Abstraction has has 512 places, 1778 transitions, 48096 flow [2023-11-30 08:20:34,976 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 125.21052631578948) internal successors, (2379), 19 states have internal predecessors, (2379), 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 08:20:34,976 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 08:20:34,976 INFO L232 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:20:34,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-30 08:20:35,183 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-30 08:20:35,184 INFO L425 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 08:20:35,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 08:20:35,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1137297352, now seen corresponding path program 2 times [2023-11-30 08:20:35,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 08:20:35,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426634711] [2023-11-30 08:20:35,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 08:20:35,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 08:20:35,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 08:20:35,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1022 backedges. 0 proven. 1022 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 08:20:35,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 08:20:35,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426634711] [2023-11-30 08:20:35,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426634711] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-30 08:20:35,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914990419] [2023-11-30 08:20:35,892 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-30 08:20:35,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 08:20:35,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 08:20:35,893 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-30 08:20:35,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-30 08:20:35,974 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-30 08:20:35,974 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-30 08:20:35,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-30 08:20:35,978 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 08:20:36,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1022 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-30 08:20:36,253 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-30 08:20:36,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1022 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-30 08:20:36,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914990419] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-30 08:20:36,526 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-30 08:20:36,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 7, 7] total 37 [2023-11-30 08:20:36,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176764122] [2023-11-30 08:20:36,527 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-30 08:20:36,527 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-11-30 08:20:36,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 08:20:36,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-11-30 08:20:36,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=313, Invalid=1093, Unknown=0, NotChecked=0, Total=1406 [2023-11-30 08:20:36,530 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 196 [2023-11-30 08:20:36,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 512 places, 1778 transitions, 48096 flow. Second operand has 38 states, 38 states have (on average 135.21052631578948) internal successors, (5138), 38 states have internal predecessors, (5138), 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 08:20:36,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 08:20:36,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 196 [2023-11-30 08:20:36,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 08:20:41,416 INFO L124 PetriNetUnfolderBase]: 2006/7779 cut-off events. [2023-11-30 08:20:41,416 INFO L125 PetriNetUnfolderBase]: For 168545/176652 co-relation queries the response was YES. [2023-11-30 08:20:41,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62385 conditions, 7779 events. 2006/7779 cut-off events. For 168545/176652 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 74841 event pairs, 381 based on Foata normal form. 44/6582 useless extension candidates. Maximal degree in co-relation 15175. Up to 2610 conditions per place. [2023-11-30 08:20:41,452 INFO L140 encePairwiseOnDemand]: 174/196 looper letters, 0 selfloop transitions, 0 changer transitions 1845/1845 dead transitions. [2023-11-30 08:20:41,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 626 places, 1845 transitions, 53348 flow [2023-11-30 08:20:41,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2023-11-30 08:20:41,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2023-11-30 08:20:41,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 15922 transitions. [2023-11-30 08:20:41,464 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.682644486365975 [2023-11-30 08:20:41,464 INFO L72 ComplementDD]: Start complementDD. Operand 119 states and 15922 transitions. [2023-11-30 08:20:41,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 119 states and 15922 transitions. [2023-11-30 08:20:41,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 08:20:41,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 119 states and 15922 transitions. [2023-11-30 08:20:41,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 120 states, 119 states have (on average 133.7983193277311) internal successors, (15922), 119 states have internal predecessors, (15922), 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 08:20:41,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 120 states, 120 states have (on average 196.0) internal successors, (23520), 120 states have internal predecessors, (23520), 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 08:20:41,505 INFO L81 ComplementDD]: Finished complementDD. Result has 120 states, 120 states have (on average 196.0) internal successors, (23520), 120 states have internal predecessors, (23520), 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 08:20:41,505 INFO L307 CegarLoopForPetriNet]: 165 programPoint places, 461 predicate places. [2023-11-30 08:20:41,505 INFO L500 AbstractCegarLoop]: Abstraction has has 626 places, 1845 transitions, 53348 flow [2023-11-30 08:20:41,506 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 135.21052631578948) internal successors, (5138), 38 states have internal predecessors, (5138), 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 08:20:41,511 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/array-eq-symm.wvr.c_BEv2_AllErrorsAtOnce [2023-11-30 08:20:41,728 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2023-11-30 08:20:41,729 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2023-11-30 08:20:41,729 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2023-11-30 08:20:41,729 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2023-11-30 08:20:41,729 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2023-11-30 08:20:41,729 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2023-11-30 08:20:41,729 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2023-11-30 08:20:41,729 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2023-11-30 08:20:41,729 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 14 remaining) [2023-11-30 08:20:41,729 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 14 remaining) [2023-11-30 08:20:41,729 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2023-11-30 08:20:41,729 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2023-11-30 08:20:41,730 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2023-11-30 08:20:41,730 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2023-11-30 08:20:41,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-30 08:20:41,935 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-30 08:20:41,936 INFO L457 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 08:20:41,940 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 08:20:41,941 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 08:20:41,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 08:20:41 BasicIcfg [2023-11-30 08:20:41,945 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 08:20:41,945 INFO L158 Benchmark]: Toolchain (without parser) took 31862.19ms. Allocated memory was 526.4MB in the beginning and 1.6GB in the end (delta: 1.1GB). Free memory was 474.7MB in the beginning and 1.1GB in the end (delta: -673.8MB). Peak memory consumption was 719.8MB. Max. memory is 16.0GB. [2023-11-30 08:20:41,945 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 350.2MB. Free memory is still 301.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 08:20:41,945 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.92ms. Allocated memory is still 526.4MB. Free memory was 474.4MB in the beginning and 463.3MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-11-30 08:20:41,946 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.10ms. Allocated memory is still 526.4MB. Free memory was 463.3MB in the beginning and 461.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 08:20:41,946 INFO L158 Benchmark]: Boogie Preprocessor took 35.03ms. Allocated memory is still 526.4MB. Free memory was 461.2MB in the beginning and 459.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 08:20:41,946 INFO L158 Benchmark]: RCFGBuilder took 560.91ms. Allocated memory is still 526.4MB. Free memory was 459.7MB in the beginning and 441.2MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-11-30 08:20:41,946 INFO L158 Benchmark]: TraceAbstraction took 30999.59ms. Allocated memory was 526.4MB in the beginning and 1.6GB in the end (delta: 1.1GB). Free memory was 440.5MB in the beginning and 1.1GB in the end (delta: -708.0MB). Peak memory consumption was 684.1MB. Max. memory is 16.0GB. [2023-11-30 08:20:41,947 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 350.2MB. Free memory is still 301.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 229.92ms. Allocated memory is still 526.4MB. Free memory was 474.4MB in the beginning and 463.3MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 31.10ms. Allocated memory is still 526.4MB. Free memory was 463.3MB in the beginning and 461.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 35.03ms. Allocated memory is still 526.4MB. Free memory was 461.2MB in the beginning and 459.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 560.91ms. Allocated memory is still 526.4MB. Free memory was 459.7MB in the beginning and 441.2MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 30999.59ms. Allocated memory was 526.4MB in the beginning and 1.6GB in the end (delta: 1.1GB). Free memory was 440.5MB in the beginning and 1.1GB in the end (delta: -708.0MB). Peak memory consumption was 684.1MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: 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, 222 locations, 14 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: 30.9s, OverallIterations: 18, TraceHistogramMax: 15, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 18.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4142 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4142 mSDsluCounter, 2505 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2110 mSDsCounter, 259 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5758 IncrementalHoareTripleChecker+Invalid, 6017 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 259 mSolverCounterUnsat, 395 mSDtfsCounter, 5758 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3327 GetRequests, 2668 SyntacticMatches, 20 SemanticMatches, 639 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14178 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53348occurred in iteration=18, InterpolantAutomatonStates: 490, 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: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 7.6s InterpolantComputationTime, 3537 NumberOfCodeBlocks, 3233 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 4860 ConstructedInterpolants, 0 QuantifiedInterpolants, 16756 SizeOfPredicates, 79 NumberOfNonLiveVariables, 2480 ConjunctsInSsa, 89 ConjunctsInUnsatCore, 39 InterpolantComputations, 8 PerfectInterpolantSequences, 2375/4518 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 08:20:41,967 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...