/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.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.positions.where.we.compute.the.hoare.annotation All --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows ASSERTandASSUME -i ../../../trunk/examples/svcomp/weaver/popl20-more-buffer-mult2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.empire2-owicki-f61efc6-m [2025-03-15 02:50:44,200 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-15 02:50:44,278 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 [2025-03-15 02:50:44,300 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-15 02:50:44,301 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-15 02:50:44,301 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-15 02:50:44,301 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-15 02:50:44,301 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-15 02:50:44,301 INFO L153 SettingsManager]: * Use SBE=true [2025-03-15 02:50:44,302 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-15 02:50:44,302 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-15 02:50:44,302 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-15 02:50:44,302 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-15 02:50:44,302 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-15 02:50:44,302 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-15 02:50:44,302 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-15 02:50:44,302 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-15 02:50:44,302 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-15 02:50:44,302 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-15 02:50:44,302 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-15 02:50:44,302 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-15 02:50:44,302 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-15 02:50:44,302 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-15 02:50:44,302 INFO L153 SettingsManager]: * To the following directory=./dump/ [2025-03-15 02:50:44,302 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-15 02:50:44,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 02:50:44,303 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-15 02:50:44,303 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-15 02:50:44,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-15 02:50:44,303 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-15 02:50:44,303 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-15 02:50:44,303 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-15 02:50:44,303 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All 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 -> ASSERTandASSUME [2025-03-15 02:50:44,533 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-15 02:50:44,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-15 02:50:44,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-15 02:50:44,543 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-15 02:50:44,543 INFO L274 PluginConnector]: CDTParser initialized [2025-03-15 02:50:44,545 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-buffer-mult2.wvr.c [2025-03-15 02:50:45,696 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/213b6ca5d/103c87b950024231bbadf98554a35599/FLAG0184882d8 [2025-03-15 02:50:45,885 INFO L384 CDTParser]: Found 1 translation units. [2025-03-15 02:50:45,885 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-mult2.wvr.c [2025-03-15 02:50:45,892 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/213b6ca5d/103c87b950024231bbadf98554a35599/FLAG0184882d8 [2025-03-15 02:50:45,909 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/213b6ca5d/103c87b950024231bbadf98554a35599 [2025-03-15 02:50:45,910 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-15 02:50:45,913 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-03-15 02:50:45,914 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-15 02:50:45,914 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-15 02:50:45,917 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-15 02:50:45,918 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:50:45" (1/1) ... [2025-03-15 02:50:45,918 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a0f64a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:50:45, skipping insertion in model container [2025-03-15 02:50:45,919 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:50:45" (1/1) ... [2025-03-15 02:50:45,934 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-15 02:50:46,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 02:50:46,097 INFO L200 MainTranslator]: Completed pre-run [2025-03-15 02:50:46,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 02:50:46,136 INFO L204 MainTranslator]: Completed translation [2025-03-15 02:50:46,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:50:46 WrapperNode [2025-03-15 02:50:46,137 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-15 02:50:46,137 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-15 02:50:46,137 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-15 02:50:46,137 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-15 02:50:46,141 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:50:46" (1/1) ... [2025-03-15 02:50:46,152 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:50:46" (1/1) ... [2025-03-15 02:50:46,178 INFO L138 Inliner]: procedures = 26, calls = 57, calls flagged for inlining = 19, calls inlined = 23, statements flattened = 322 [2025-03-15 02:50:46,178 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-15 02:50:46,183 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-15 02:50:46,183 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-15 02:50:46,183 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-15 02:50:46,188 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:50:46" (1/1) ... [2025-03-15 02:50:46,189 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:50:46" (1/1) ... [2025-03-15 02:50:46,195 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:50:46" (1/1) ... [2025-03-15 02:50:46,195 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:50:46" (1/1) ... [2025-03-15 02:50:46,206 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:50:46" (1/1) ... [2025-03-15 02:50:46,207 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:50:46" (1/1) ... [2025-03-15 02:50:46,214 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:50:46" (1/1) ... [2025-03-15 02:50:46,218 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:50:46" (1/1) ... [2025-03-15 02:50:46,219 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:50:46" (1/1) ... [2025-03-15 02:50:46,221 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-15 02:50:46,221 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-15 02:50:46,221 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-15 02:50:46,226 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-15 02:50:46,226 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:50:46" (1/1) ... [2025-03-15 02:50:46,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 02:50:46,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:50:46,256 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) [2025-03-15 02:50:46,259 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 [2025-03-15 02:50:46,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-15 02:50:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-15 02:50:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-15 02:50:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-15 02:50:46,278 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-15 02:50:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-15 02:50:46,278 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-15 02:50:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-15 02:50:46,278 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-15 02:50:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-03-15 02:50:46,279 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-03-15 02:50:46,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-15 02:50:46,279 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-15 02:50:46,279 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-15 02:50:46,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-15 02:50:46,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-15 02:50:46,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-15 02:50:46,280 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-15 02:50:46,358 INFO L234 CfgBuilder]: Building ICFG [2025-03-15 02:50:46,359 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-15 02:50:46,803 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-15 02:50:46,803 INFO L283 CfgBuilder]: Performing block encoding [2025-03-15 02:50:47,096 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-15 02:50:47,096 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-15 02:50:47,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:50:47 BoogieIcfgContainer [2025-03-15 02:50:47,097 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-15 02:50:47,099 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-15 02:50:47,099 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-15 02:50:47,102 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-15 02:50:47,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 02:50:45" (1/3) ... [2025-03-15 02:50:47,103 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c5057a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:50:47, skipping insertion in model container [2025-03-15 02:50:47,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:50:46" (2/3) ... [2025-03-15 02:50:47,103 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c5057a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:50:47, skipping insertion in model container [2025-03-15 02:50:47,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:50:47" (3/3) ... [2025-03-15 02:50:47,104 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-mult2.wvr.c [2025-03-15 02:50:47,115 INFO L303 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-15 02:50:47,117 INFO L169 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-more-buffer-mult2.wvr.c that has 5 procedures, 242 locations, 1 initial locations, 6 loop locations, and 30 error locations. [2025-03-15 02:50:47,117 INFO L581 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-15 02:50:47,237 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-03-15 02:50:47,273 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-15 02:50:47,285 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@664acf92, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-15 02:50:47,286 INFO L334 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2025-03-15 02:50:47,322 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-15 02:50:47,323 INFO L124 PetriNetUnfolderBase]: 2/88 cut-off events. [2025-03-15 02:50:47,327 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-15 02:50:47,327 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:50:47,328 INFO L221 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] [2025-03-15 02:50:47,328 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:50:47,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:50:47,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1318875165, now seen corresponding path program 1 times [2025-03-15 02:50:47,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:50:47,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968482214] [2025-03-15 02:50:47,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:50:47,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:50:47,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:50:47,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:50:47,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:50:47,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968482214] [2025-03-15 02:50:47,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968482214] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:50:47,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:50:47,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 02:50:47,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691973883] [2025-03-15 02:50:47,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:50:47,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 02:50:47,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:50:47,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 02:50:47,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 02:50:47,680 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 253 [2025-03-15 02:50:47,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 253 transitions, 534 flow. Second operand has 4 states, 4 states have (on average 181.5) internal successors, (726), 4 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:50:47,686 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:50:47,686 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 253 [2025-03-15 02:50:47,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:50:50,401 INFO L124 PetriNetUnfolderBase]: 11501/15835 cut-off events. [2025-03-15 02:50:50,402 INFO L125 PetriNetUnfolderBase]: For 2483/2483 co-relation queries the response was YES. [2025-03-15 02:50:50,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31151 conditions, 15835 events. 11501/15835 cut-off events. For 2483/2483 co-relation queries the response was YES. Maximal size of possible extension queue 1421. Compared 87869 event pairs, 5718 based on Foata normal form. 7/5043 useless extension candidates. Maximal degree in co-relation 30474. Up to 13924 conditions per place. [2025-03-15 02:50:50,595 INFO L140 encePairwiseOnDemand]: 224/253 looper letters, 65 selfloop transitions, 10 changer transitions 14/246 dead transitions. [2025-03-15 02:50:50,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 246 transitions, 668 flow [2025-03-15 02:50:50,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-15 02:50:50,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-15 02:50:50,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 995 transitions. [2025-03-15 02:50:50,615 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7865612648221344 [2025-03-15 02:50:50,619 INFO L298 CegarLoopForPetriNet]: 254 programPoint places, -15 predicate places. [2025-03-15 02:50:50,619 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 246 transitions, 668 flow [2025-03-15 02:50:50,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 181.5) internal successors, (726), 4 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:50:50,621 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:50:50,622 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:50:50,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-15 02:50:50,622 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:50:50,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:50:50,623 INFO L85 PathProgramCache]: Analyzing trace with hash 51154773, now seen corresponding path program 1 times [2025-03-15 02:50:50,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:50:50,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455212421] [2025-03-15 02:50:50,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:50:50,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:50:50,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:50:50,837 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:50:50,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:50:50,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455212421] [2025-03-15 02:50:50,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455212421] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:50:50,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663917362] [2025-03-15 02:50:50,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:50:50,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:50:50,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:50:50,842 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) [2025-03-15 02:50:50,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-15 02:50:50,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:50:50,932 INFO L256 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-15 02:50:50,935 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:50:51,026 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:50:51,027 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-15 02:50:51,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663917362] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:50:51,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-15 02:50:51,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-03-15 02:50:51,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888933931] [2025-03-15 02:50:51,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:50:51,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 02:50:51,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:50:51,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 02:50:51,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-15 02:50:51,029 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 253 [2025-03-15 02:50:51,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 246 transitions, 668 flow. Second operand has 6 states, 6 states have (on average 182.16666666666666) internal successors, (1093), 6 states have internal predecessors, (1093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:50:51,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:50:51,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 253 [2025-03-15 02:50:51,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:50:53,184 INFO L124 PetriNetUnfolderBase]: 11501/15833 cut-off events. [2025-03-15 02:50:53,184 INFO L125 PetriNetUnfolderBase]: For 2940/3342 co-relation queries the response was YES. [2025-03-15 02:50:53,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45085 conditions, 15833 events. 11501/15833 cut-off events. For 2940/3342 co-relation queries the response was YES. Maximal size of possible extension queue 1421. Compared 88020 event pairs, 5718 based on Foata normal form. 0/5036 useless extension candidates. Maximal degree in co-relation 44215. Up to 13922 conditions per place. [2025-03-15 02:50:53,407 INFO L140 encePairwiseOnDemand]: 241/253 looper letters, 57 selfloop transitions, 16 changer transitions 14/244 dead transitions. [2025-03-15 02:50:53,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 244 transitions, 808 flow [2025-03-15 02:50:53,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-15 02:50:53,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-15 02:50:53,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1336 transitions. [2025-03-15 02:50:53,412 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7543760587238848 [2025-03-15 02:50:53,412 INFO L298 CegarLoopForPetriNet]: 254 programPoint places, -11 predicate places. [2025-03-15 02:50:53,412 INFO L471 AbstractCegarLoop]: Abstraction has has 243 places, 244 transitions, 808 flow [2025-03-15 02:50:53,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 182.16666666666666) internal successors, (1093), 6 states have internal predecessors, (1093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:50:53,413 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:50:53,413 INFO L221 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] [2025-03-15 02:50:53,422 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-15 02:50:53,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:50:53,614 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:50:53,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:50:53,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1585798813, now seen corresponding path program 1 times [2025-03-15 02:50:53,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:50:53,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342133361] [2025-03-15 02:50:53,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:50:53,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:50:53,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:50:53,742 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:50:53,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:50:53,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342133361] [2025-03-15 02:50:53,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342133361] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:50:53,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520546860] [2025-03-15 02:50:53,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:50:53,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:50:53,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:50:53,744 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) [2025-03-15 02:50:53,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-15 02:50:53,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:50:53,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-15 02:50:53,833 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:50:53,880 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:50:53,881 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 02:50:53,934 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:50:53,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520546860] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 02:50:53,934 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 02:50:53,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-03-15 02:50:53,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912815757] [2025-03-15 02:50:53,934 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 02:50:53,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-15 02:50:53,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:50:53,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-15 02:50:53,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-15 02:50:53,937 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 253 [2025-03-15 02:50:53,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 244 transitions, 808 flow. Second operand has 12 states, 12 states have (on average 182.83333333333334) internal successors, (2194), 12 states have internal predecessors, (2194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:50:53,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:50:53,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 253 [2025-03-15 02:50:53,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:50:55,919 INFO L124 PetriNetUnfolderBase]: 11507/15903 cut-off events. [2025-03-15 02:50:55,919 INFO L125 PetriNetUnfolderBase]: For 3838/4642 co-relation queries the response was YES. [2025-03-15 02:50:55,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59249 conditions, 15903 events. 11507/15903 cut-off events. For 3838/4642 co-relation queries the response was YES. Maximal size of possible extension queue 1421. Compared 88539 event pairs, 5718 based on Foata normal form. 0/5100 useless extension candidates. Maximal degree in co-relation 57956. Up to 13974 conditions per place. [2025-03-15 02:50:56,161 INFO L140 encePairwiseOnDemand]: 239/253 looper letters, 89 selfloop transitions, 36 changer transitions 14/296 dead transitions. [2025-03-15 02:50:56,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 296 transitions, 1372 flow [2025-03-15 02:50:56,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-15 02:50:56,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-15 02:50:56,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2652 transitions. [2025-03-15 02:50:56,166 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.748729531338227 [2025-03-15 02:50:56,167 INFO L298 CegarLoopForPetriNet]: 254 programPoint places, 2 predicate places. [2025-03-15 02:50:56,167 INFO L471 AbstractCegarLoop]: Abstraction has has 256 places, 296 transitions, 1372 flow [2025-03-15 02:50:56,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 182.83333333333334) internal successors, (2194), 12 states have internal predecessors, (2194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:50:56,168 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:50:56,168 INFO L221 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:50:56,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-15 02:50:56,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2025-03-15 02:50:56,373 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:50:56,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:50:56,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1726984711, now seen corresponding path program 2 times [2025-03-15 02:50:56,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:50:56,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930465364] [2025-03-15 02:50:56,374 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 02:50:56,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:50:56,389 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-15 02:50:56,389 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 02:50:56,479 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-15 02:50:56,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:50:56,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930465364] [2025-03-15 02:50:56,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930465364] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:50:56,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122145590] [2025-03-15 02:50:56,480 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 02:50:56,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:50:56,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:50:56,482 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) [2025-03-15 02:50:56,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-15 02:50:56,549 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-15 02:50:56,549 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 02:50:56,550 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-15 02:50:56,552 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:50:56,634 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-15 02:50:56,635 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 02:50:56,734 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-15 02:50:56,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122145590] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 02:50:56,734 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 02:50:56,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 7 [2025-03-15 02:50:56,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466273048] [2025-03-15 02:50:56,734 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 02:50:56,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-15 02:50:56,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:50:56,735 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-15 02:50:56,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-15 02:50:56,736 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 253 [2025-03-15 02:50:56,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 296 transitions, 1372 flow. Second operand has 8 states, 8 states have (on average 164.125) internal successors, (1313), 8 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:50:56,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:50:56,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 253 [2025-03-15 02:50:56,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:50:58,233 INFO L124 PetriNetUnfolderBase]: 8037/11415 cut-off events. [2025-03-15 02:50:58,234 INFO L125 PetriNetUnfolderBase]: For 4306/5242 co-relation queries the response was YES. [2025-03-15 02:50:58,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51887 conditions, 11415 events. 8037/11415 cut-off events. For 4306/5242 co-relation queries the response was YES. Maximal size of possible extension queue 1012. Compared 63017 event pairs, 3987 based on Foata normal form. 0/4145 useless extension candidates. Maximal degree in co-relation 50486. Up to 9824 conditions per place. [2025-03-15 02:50:58,332 INFO L140 encePairwiseOnDemand]: 229/253 looper letters, 100 selfloop transitions, 41 changer transitions 14/294 dead transitions. [2025-03-15 02:50:58,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 294 transitions, 1640 flow [2025-03-15 02:50:58,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-15 02:50:58,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-15 02:50:58,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2340 transitions. [2025-03-15 02:50:58,336 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6606437041219649 [2025-03-15 02:50:58,337 INFO L298 CegarLoopForPetriNet]: 254 programPoint places, 12 predicate places. [2025-03-15 02:50:58,337 INFO L471 AbstractCegarLoop]: Abstraction has has 266 places, 294 transitions, 1640 flow [2025-03-15 02:50:58,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 164.125) internal successors, (1313), 8 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:50:58,338 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:50:58,338 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:50:58,344 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-15 02:50:58,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:50:58,542 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:50:58,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:50:58,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1711608925, now seen corresponding path program 1 times [2025-03-15 02:50:58,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:50:58,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410795279] [2025-03-15 02:50:58,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:50:58,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:50:58,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:50:58,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:50:58,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:50:58,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410795279] [2025-03-15 02:50:58,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410795279] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:50:58,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:50:58,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-15 02:50:58,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169285224] [2025-03-15 02:50:58,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:50:58,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-15 02:50:58,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:50:58,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-15 02:50:58,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-15 02:50:58,653 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 253 [2025-03-15 02:50:58,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 294 transitions, 1640 flow. Second operand has 3 states, 3 states have (on average 204.33333333333334) internal successors, (613), 3 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:50:58,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:50:58,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 253 [2025-03-15 02:50:58,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:51:00,684 INFO L124 PetriNetUnfolderBase]: 11283/17026 cut-off events. [2025-03-15 02:51:00,684 INFO L125 PetriNetUnfolderBase]: For 15561/19541 co-relation queries the response was YES. [2025-03-15 02:51:00,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84584 conditions, 17026 events. 11283/17026 cut-off events. For 15561/19541 co-relation queries the response was YES. Maximal size of possible extension queue 1522. Compared 125658 event pairs, 7320 based on Foata normal form. 0/7358 useless extension candidates. Maximal degree in co-relation 62192. Up to 12854 conditions per place. [2025-03-15 02:51:00,867 INFO L140 encePairwiseOnDemand]: 249/253 looper letters, 56 selfloop transitions, 2 changer transitions 15/321 dead transitions. [2025-03-15 02:51:00,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 321 transitions, 2035 flow [2025-03-15 02:51:00,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-15 02:51:00,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-15 02:51:00,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 671 transitions. [2025-03-15 02:51:00,869 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8840579710144928 [2025-03-15 02:51:00,870 INFO L298 CegarLoopForPetriNet]: 254 programPoint places, 14 predicate places. [2025-03-15 02:51:00,870 INFO L471 AbstractCegarLoop]: Abstraction has has 268 places, 321 transitions, 2035 flow [2025-03-15 02:51:00,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 204.33333333333334) internal successors, (613), 3 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:51:00,870 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:51:00,870 INFO L221 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2025-03-15 02:51:00,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-15 02:51:00,871 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:51:00,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:51:00,871 INFO L85 PathProgramCache]: Analyzing trace with hash -688647562, now seen corresponding path program 1 times [2025-03-15 02:51:00,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:51:00,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596638793] [2025-03-15 02:51:00,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:51:00,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:51:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:51:01,134 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:51:01,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:51:01,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596638793] [2025-03-15 02:51:01,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596638793] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:51:01,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:51:01,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-15 02:51:01,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294498335] [2025-03-15 02:51:01,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:51:01,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 02:51:01,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:51:01,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 02:51:01,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-15 02:51:01,136 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 253 [2025-03-15 02:51:01,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 321 transitions, 2035 flow. Second operand has 6 states, 6 states have (on average 180.5) internal successors, (1083), 6 states have internal predecessors, (1083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:51:01,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:51:01,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 253 [2025-03-15 02:51:01,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:51:03,370 INFO L124 PetriNetUnfolderBase]: 12012/19514 cut-off events. [2025-03-15 02:51:03,370 INFO L125 PetriNetUnfolderBase]: For 35925/38220 co-relation queries the response was YES. [2025-03-15 02:51:03,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105313 conditions, 19514 events. 12012/19514 cut-off events. For 35925/38220 co-relation queries the response was YES. Maximal size of possible extension queue 1559. Compared 153114 event pairs, 3498 based on Foata normal form. 288/9422 useless extension candidates. Maximal degree in co-relation 92524. Up to 13668 conditions per place. [2025-03-15 02:51:03,574 INFO L140 encePairwiseOnDemand]: 237/253 looper letters, 181 selfloop transitions, 12 changer transitions 16/383 dead transitions. [2025-03-15 02:51:03,574 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 383 transitions, 3069 flow [2025-03-15 02:51:03,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-15 02:51:03,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-15 02:51:03,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1693 transitions. [2025-03-15 02:51:03,577 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.743522178304787 [2025-03-15 02:51:03,577 INFO L298 CegarLoopForPetriNet]: 254 programPoint places, 22 predicate places. [2025-03-15 02:51:03,577 INFO L471 AbstractCegarLoop]: Abstraction has has 276 places, 383 transitions, 3069 flow [2025-03-15 02:51:03,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 180.5) internal successors, (1083), 6 states have internal predecessors, (1083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:51:03,578 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:51:03,578 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:51:03,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-15 02:51:03,578 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:51:03,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:51:03,579 INFO L85 PathProgramCache]: Analyzing trace with hash 411756907, now seen corresponding path program 1 times [2025-03-15 02:51:03,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:51:03,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981233374] [2025-03-15 02:51:03,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:51:03,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:51:03,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:51:03,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:51:03,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:51:03,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981233374] [2025-03-15 02:51:03,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981233374] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:51:03,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:51:03,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-15 02:51:03,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491740280] [2025-03-15 02:51:03,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:51:03,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-15 02:51:03,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:51:03,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-15 02:51:03,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-15 02:51:03,652 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 253 [2025-03-15 02:51:03,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 383 transitions, 3069 flow. Second operand has 3 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:51:03,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:51:03,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 253 [2025-03-15 02:51:03,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:51:08,648 INFO L124 PetriNetUnfolderBase]: 20781/36441 cut-off events. [2025-03-15 02:51:08,648 INFO L125 PetriNetUnfolderBase]: For 119947/123100 co-relation queries the response was YES. [2025-03-15 02:51:08,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201301 conditions, 36441 events. 20781/36441 cut-off events. For 119947/123100 co-relation queries the response was YES. Maximal size of possible extension queue 2081. Compared 337112 event pairs, 4984 based on Foata normal form. 0/18792 useless extension candidates. Maximal degree in co-relation 165296. Up to 22302 conditions per place. [2025-03-15 02:51:09,039 INFO L140 encePairwiseOnDemand]: 249/253 looper letters, 132 selfloop transitions, 4 changer transitions 19/447 dead transitions. [2025-03-15 02:51:09,040 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 447 transitions, 4279 flow [2025-03-15 02:51:09,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-15 02:51:09,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-15 02:51:09,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 670 transitions. [2025-03-15 02:51:09,041 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8827404479578392 [2025-03-15 02:51:09,042 INFO L298 CegarLoopForPetriNet]: 254 programPoint places, 24 predicate places. [2025-03-15 02:51:09,042 INFO L471 AbstractCegarLoop]: Abstraction has has 278 places, 447 transitions, 4279 flow [2025-03-15 02:51:09,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:51:09,042 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:51:09,042 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:51:09,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-15 02:51:09,042 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:51:09,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:51:09,043 INFO L85 PathProgramCache]: Analyzing trace with hash 411756903, now seen corresponding path program 1 times [2025-03-15 02:51:09,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:51:09,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948763219] [2025-03-15 02:51:09,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:51:09,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:51:09,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:51:09,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:51:09,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:51:09,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948763219] [2025-03-15 02:51:09,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948763219] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:51:09,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:51:09,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 02:51:09,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643686063] [2025-03-15 02:51:09,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:51:09,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 02:51:09,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:51:09,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 02:51:09,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 02:51:09,107 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 253 [2025-03-15 02:51:09,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 447 transitions, 4279 flow. Second operand has 4 states, 4 states have (on average 202.5) internal successors, (810), 4 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:51:09,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:51:09,107 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 253 [2025-03-15 02:51:09,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:51:13,342 INFO L124 PetriNetUnfolderBase]: 17453/31057 cut-off events. [2025-03-15 02:51:13,342 INFO L125 PetriNetUnfolderBase]: For 139769/142960 co-relation queries the response was YES. [2025-03-15 02:51:13,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187985 conditions, 31057 events. 17453/31057 cut-off events. For 139769/142960 co-relation queries the response was YES. Maximal size of possible extension queue 1760. Compared 284322 event pairs, 4526 based on Foata normal form. 0/16386 useless extension candidates. Maximal degree in co-relation 154283. Up to 18699 conditions per place. [2025-03-15 02:51:13,679 INFO L140 encePairwiseOnDemand]: 249/253 looper letters, 127 selfloop transitions, 3 changer transitions 19/441 dead transitions. [2025-03-15 02:51:13,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 441 transitions, 4455 flow [2025-03-15 02:51:13,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-15 02:51:13,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-15 02:51:13,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 835 transitions. [2025-03-15 02:51:13,684 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.825098814229249 [2025-03-15 02:51:13,685 INFO L298 CegarLoopForPetriNet]: 254 programPoint places, 26 predicate places. [2025-03-15 02:51:13,685 INFO L471 AbstractCegarLoop]: Abstraction has has 280 places, 441 transitions, 4455 flow [2025-03-15 02:51:13,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 202.5) internal successors, (810), 4 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:51:13,685 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:51:13,685 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:51:13,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-15 02:51:13,685 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:51:13,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:51:13,686 INFO L85 PathProgramCache]: Analyzing trace with hash 411756904, now seen corresponding path program 1 times [2025-03-15 02:51:13,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:51:13,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171125369] [2025-03-15 02:51:13,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:51:13,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:51:13,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:51:13,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:51:13,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:51:13,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171125369] [2025-03-15 02:51:13,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171125369] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:51:13,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:51:13,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 02:51:13,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361631894] [2025-03-15 02:51:13,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:51:13,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 02:51:13,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:51:13,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 02:51:13,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-15 02:51:13,936 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 253 [2025-03-15 02:51:13,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 441 transitions, 4455 flow. Second operand has 6 states, 6 states have (on average 180.5) internal successors, (1083), 6 states have internal predecessors, (1083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:51:13,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:51:13,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 253 [2025-03-15 02:51:13,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:51:18,568 INFO L124 PetriNetUnfolderBase]: 18041/32886 cut-off events. [2025-03-15 02:51:18,568 INFO L125 PetriNetUnfolderBase]: For 195277/199852 co-relation queries the response was YES. [2025-03-15 02:51:18,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214841 conditions, 32886 events. 18041/32886 cut-off events. For 195277/199852 co-relation queries the response was YES. Maximal size of possible extension queue 1731. Compared 306782 event pairs, 4684 based on Foata normal form. 312/18071 useless extension candidates. Maximal degree in co-relation 178120. Up to 19318 conditions per place. [2025-03-15 02:51:19,020 INFO L140 encePairwiseOnDemand]: 234/253 looper letters, 251 selfloop transitions, 18 changer transitions 35/480 dead transitions. [2025-03-15 02:51:19,021 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 480 transitions, 5784 flow [2025-03-15 02:51:19,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-15 02:51:19,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-15 02:51:19,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1676 transitions. [2025-03-15 02:51:19,023 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7360562143170839 [2025-03-15 02:51:19,023 INFO L298 CegarLoopForPetriNet]: 254 programPoint places, 34 predicate places. [2025-03-15 02:51:19,023 INFO L471 AbstractCegarLoop]: Abstraction has has 288 places, 480 transitions, 5784 flow [2025-03-15 02:51:19,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 180.5) internal successors, (1083), 6 states have internal predecessors, (1083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:51:19,024 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:51:19,024 INFO L221 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:51:19,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-15 02:51:19,024 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:51:19,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:51:19,025 INFO L85 PathProgramCache]: Analyzing trace with hash 2132531816, now seen corresponding path program 1 times [2025-03-15 02:51:19,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:51:19,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283135015] [2025-03-15 02:51:19,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:51:19,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:51:19,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:51:19,354 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:51:19,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:51:19,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283135015] [2025-03-15 02:51:19,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283135015] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:51:19,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119500081] [2025-03-15 02:51:19,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:51:19,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:51:19,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:51:19,356 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) [2025-03-15 02:51:19,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-15 02:51:19,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:51:19,445 INFO L256 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-15 02:51:19,447 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:51:19,593 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:51:19,593 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 02:51:19,798 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:51:19,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119500081] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 02:51:19,798 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 02:51:19,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2025-03-15 02:51:19,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673504115] [2025-03-15 02:51:19,798 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 02:51:19,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-15 02:51:19,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:51:19,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-15 02:51:19,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2025-03-15 02:51:19,802 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 253 [2025-03-15 02:51:19,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 480 transitions, 5784 flow. Second operand has 19 states, 19 states have (on average 165.3684210526316) internal successors, (3142), 19 states have internal predecessors, (3142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:51:19,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:51:19,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 253 [2025-03-15 02:51:19,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:51:28,919 INFO L124 PetriNetUnfolderBase]: 31985/57678 cut-off events. [2025-03-15 02:51:28,920 INFO L125 PetriNetUnfolderBase]: For 429367/446820 co-relation queries the response was YES. [2025-03-15 02:51:29,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 415481 conditions, 57678 events. 31985/57678 cut-off events. For 429367/446820 co-relation queries the response was YES. Maximal size of possible extension queue 2266. Compared 560655 event pairs, 8014 based on Foata normal form. 1307/31734 useless extension candidates. Maximal degree in co-relation 195502. Up to 34084 conditions per place. [2025-03-15 02:51:29,804 INFO L140 encePairwiseOnDemand]: 230/253 looper letters, 462 selfloop transitions, 73 changer transitions 47/723 dead transitions. [2025-03-15 02:51:29,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 723 transitions, 11267 flow [2025-03-15 02:51:29,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-15 02:51:29,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-03-15 02:51:29,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3605 transitions. [2025-03-15 02:51:29,809 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6785243741765481 [2025-03-15 02:51:29,814 INFO L298 CegarLoopForPetriNet]: 254 programPoint places, 54 predicate places. [2025-03-15 02:51:29,814 INFO L471 AbstractCegarLoop]: Abstraction has has 308 places, 723 transitions, 11267 flow [2025-03-15 02:51:29,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 165.3684210526316) internal successors, (3142), 19 states have internal predecessors, (3142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:51:29,815 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:51:29,815 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:51:29,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-15 02:51:30,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:51:30,016 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:51:30,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:51:30,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1521420070, now seen corresponding path program 1 times [2025-03-15 02:51:30,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:51:30,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201204059] [2025-03-15 02:51:30,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:51:30,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:51:30,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:51:30,170 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-15 02:51:30,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:51:30,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201204059] [2025-03-15 02:51:30,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201204059] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:51:30,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:51:30,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-15 02:51:30,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089311014] [2025-03-15 02:51:30,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:51:30,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 02:51:30,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:51:30,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 02:51:30,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-15 02:51:30,171 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 253 [2025-03-15 02:51:30,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 723 transitions, 11267 flow. Second operand has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:51:30,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:51:30,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 253 [2025-03-15 02:51:30,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:51:38,703 INFO L124 PetriNetUnfolderBase]: 25994/48182 cut-off events. [2025-03-15 02:51:38,704 INFO L125 PetriNetUnfolderBase]: For 432781/449199 co-relation queries the response was YES. [2025-03-15 02:51:38,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 365844 conditions, 48182 events. 25994/48182 cut-off events. For 432781/449199 co-relation queries the response was YES. Maximal size of possible extension queue 1850. Compared 468591 event pairs, 6560 based on Foata normal form. 0/26452 useless extension candidates. Maximal degree in co-relation 154291. Up to 27583 conditions per place. [2025-03-15 02:51:39,345 INFO L140 encePairwiseOnDemand]: 243/253 looper letters, 320 selfloop transitions, 5 changer transitions 47/711 dead transitions. [2025-03-15 02:51:39,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 711 transitions, 11737 flow [2025-03-15 02:51:39,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-15 02:51:39,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-15 02:51:39,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1055 transitions. [2025-03-15 02:51:39,347 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6949934123847167 [2025-03-15 02:51:39,348 INFO L298 CegarLoopForPetriNet]: 254 programPoint places, 58 predicate places. [2025-03-15 02:51:39,348 INFO L471 AbstractCegarLoop]: Abstraction has has 312 places, 711 transitions, 11737 flow [2025-03-15 02:51:39,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:51:39,348 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:51:39,348 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:51:39,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-15 02:51:39,348 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:51:39,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:51:39,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1521420068, now seen corresponding path program 1 times [2025-03-15 02:51:39,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:51:39,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799707042] [2025-03-15 02:51:39,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:51:39,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:51:39,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:51:39,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:51:39,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:51:39,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799707042] [2025-03-15 02:51:39,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799707042] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:51:39,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871214911] [2025-03-15 02:51:39,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:51:39,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:51:39,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:51:39,479 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) [2025-03-15 02:51:39,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-15 02:51:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:51:39,563 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-15 02:51:39,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:51:39,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-15 02:51:39,656 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-15 02:51:39,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [871214911] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:51:39,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-15 02:51:39,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2025-03-15 02:51:39,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426455683] [2025-03-15 02:51:39,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:51:39,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 02:51:39,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:51:39,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 02:51:39,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-03-15 02:51:39,658 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 253 [2025-03-15 02:51:39,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 711 transitions, 11737 flow. Second operand has 4 states, 4 states have (on average 202.5) internal successors, (810), 4 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:51:39,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:51:39,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 253 [2025-03-15 02:51:39,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:51:45,615 INFO L124 PetriNetUnfolderBase]: 18182/35250 cut-off events. [2025-03-15 02:51:45,615 INFO L125 PetriNetUnfolderBase]: For 422572/436220 co-relation queries the response was YES. [2025-03-15 02:51:45,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275347 conditions, 35250 events. 18182/35250 cut-off events. For 422572/436220 co-relation queries the response was YES. Maximal size of possible extension queue 1301. Compared 338607 event pairs, 4825 based on Foata normal form. 0/20493 useless extension candidates. Maximal degree in co-relation 109283. Up to 19148 conditions per place. [2025-03-15 02:51:46,121 INFO L140 encePairwiseOnDemand]: 248/253 looper letters, 271 selfloop transitions, 3 changer transitions 47/687 dead transitions. [2025-03-15 02:51:46,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 687 transitions, 11769 flow [2025-03-15 02:51:46,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-15 02:51:46,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-15 02:51:46,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 833 transitions. [2025-03-15 02:51:46,123 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8231225296442688 [2025-03-15 02:51:46,123 INFO L298 CegarLoopForPetriNet]: 254 programPoint places, 59 predicate places. [2025-03-15 02:51:46,123 INFO L471 AbstractCegarLoop]: Abstraction has has 313 places, 687 transitions, 11769 flow [2025-03-15 02:51:46,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 202.5) internal successors, (810), 4 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:51:46,123 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:51:46,123 INFO L221 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:51:46,129 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-15 02:51:46,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-03-15 02:51:46,324 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:51:46,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:51:46,325 INFO L85 PathProgramCache]: Analyzing trace with hash 165771533, now seen corresponding path program 1 times [2025-03-15 02:51:46,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:51:46,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94833301] [2025-03-15 02:51:46,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:51:46,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:51:46,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:51:46,395 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-15 02:51:46,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:51:46,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94833301] [2025-03-15 02:51:46,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94833301] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:51:46,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120426497] [2025-03-15 02:51:46,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:51:46,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:51:46,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:51:46,397 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) [2025-03-15 02:51:46,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-15 02:51:46,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:51:46,488 INFO L256 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-15 02:51:46,489 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:51:46,612 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-15 02:51:46,612 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 02:51:46,731 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-15 02:51:46,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120426497] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 02:51:46,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 02:51:46,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-03-15 02:51:46,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821988954] [2025-03-15 02:51:46,731 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 02:51:46,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-15 02:51:46,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:51:46,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-15 02:51:46,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-15 02:51:46,733 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 253 [2025-03-15 02:51:46,734 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 687 transitions, 11769 flow. Second operand has 7 states, 7 states have (on average 205.71428571428572) internal successors, (1440), 7 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:51:46,734 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:51:46,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 253 [2025-03-15 02:51:46,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:51:59,350 INFO L124 PetriNetUnfolderBase]: 38048/71690 cut-off events. [2025-03-15 02:51:59,350 INFO L125 PetriNetUnfolderBase]: For 1019971/1040080 co-relation queries the response was YES. [2025-03-15 02:51:59,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 612050 conditions, 71690 events. 38048/71690 cut-off events. For 1019971/1040080 co-relation queries the response was YES. Maximal size of possible extension queue 2460. Compared 734193 event pairs, 6079 based on Foata normal form. 160/41714 useless extension candidates. Maximal degree in co-relation 279197. Up to 39637 conditions per place. [2025-03-15 02:52:00,785 INFO L140 encePairwiseOnDemand]: 249/253 looper letters, 614 selfloop transitions, 49 changer transitions 65/1096 dead transitions. [2025-03-15 02:52:00,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 1096 transitions, 23949 flow [2025-03-15 02:52:00,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-15 02:52:00,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-15 02:52:00,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1565 transitions. [2025-03-15 02:52:00,788 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.883681535855449 [2025-03-15 02:52:00,788 INFO L298 CegarLoopForPetriNet]: 254 programPoint places, 65 predicate places. [2025-03-15 02:52:00,789 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 1096 transitions, 23949 flow [2025-03-15 02:52:00,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 205.71428571428572) internal successors, (1440), 7 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:52:00,789 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:52:00,789 INFO L221 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:52:00,795 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-15 02:52:00,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:52:00,990 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:52:00,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:52:00,991 INFO L85 PathProgramCache]: Analyzing trace with hash 165771532, now seen corresponding path program 1 times [2025-03-15 02:52:00,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:52:00,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126977175] [2025-03-15 02:52:00,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:52:00,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:52:01,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:52:01,056 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-15 02:52:01,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:52:01,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126977175] [2025-03-15 02:52:01,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126977175] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:52:01,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:52:01,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-15 02:52:01,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903048651] [2025-03-15 02:52:01,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:52:01,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-15 02:52:01,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:52:01,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-15 02:52:01,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-15 02:52:01,058 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 253 [2025-03-15 02:52:01,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 1096 transitions, 23949 flow. Second operand has 3 states, 3 states have (on average 205.33333333333334) internal successors, (616), 3 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:52:01,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:52:01,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 253 [2025-03-15 02:52:01,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:52:15,136 INFO L124 PetriNetUnfolderBase]: 32359/64581 cut-off events. [2025-03-15 02:52:15,137 INFO L125 PetriNetUnfolderBase]: For 1110487/1131584 co-relation queries the response was YES. [2025-03-15 02:52:15,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 566744 conditions, 64581 events. 32359/64581 cut-off events. For 1110487/1131584 co-relation queries the response was YES. Maximal size of possible extension queue 2296. Compared 691071 event pairs, 5613 based on Foata normal form. 3/39835 useless extension candidates. Maximal degree in co-relation 254897. Up to 39666 conditions per place. [2025-03-15 02:52:16,204 INFO L140 encePairwiseOnDemand]: 251/253 looper letters, 559 selfloop transitions, 1 changer transitions 65/993 dead transitions. [2025-03-15 02:52:16,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 993 transitions, 22274 flow [2025-03-15 02:52:16,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-15 02:52:16,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-15 02:52:16,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 638 transitions. [2025-03-15 02:52:16,206 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8405797101449275 [2025-03-15 02:52:16,206 INFO L298 CegarLoopForPetriNet]: 254 programPoint places, 65 predicate places. [2025-03-15 02:52:16,206 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 993 transitions, 22274 flow [2025-03-15 02:52:16,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.33333333333334) internal successors, (616), 3 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:52:16,206 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:52:16,206 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:52:16,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-15 02:52:16,207 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:52:16,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:52:16,207 INFO L85 PathProgramCache]: Analyzing trace with hash 699491458, now seen corresponding path program 1 times [2025-03-15 02:52:16,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:52:16,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52985377] [2025-03-15 02:52:16,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:52:16,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:52:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:52:16,267 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-15 02:52:16,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:52:16,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52985377] [2025-03-15 02:52:16,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52985377] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:52:16,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:52:16,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-15 02:52:16,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179534852] [2025-03-15 02:52:16,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:52:16,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-15 02:52:16,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:52:16,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-15 02:52:16,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-15 02:52:16,268 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 253 [2025-03-15 02:52:16,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 993 transitions, 22274 flow. Second operand has 3 states, 3 states have (on average 205.0) internal successors, (615), 3 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:52:16,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:52:16,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 253 [2025-03-15 02:52:16,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:52:24,897 INFO L124 PetriNetUnfolderBase]: 19934/42157 cut-off events. [2025-03-15 02:52:24,897 INFO L125 PetriNetUnfolderBase]: For 874000/895227 co-relation queries the response was YES. [2025-03-15 02:52:25,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 375808 conditions, 42157 events. 19934/42157 cut-off events. For 874000/895227 co-relation queries the response was YES. Maximal size of possible extension queue 1472. Compared 444045 event pairs, 4293 based on Foata normal form. 614/27913 useless extension candidates. Maximal degree in co-relation 194860. Up to 24773 conditions per place. [2025-03-15 02:52:25,684 INFO L140 encePairwiseOnDemand]: 246/253 looper letters, 394 selfloop transitions, 13 changer transitions 62/840 dead transitions. [2025-03-15 02:52:25,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 840 transitions, 18546 flow [2025-03-15 02:52:25,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-15 02:52:25,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-15 02:52:25,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 656 transitions. [2025-03-15 02:52:25,685 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8642951251646904 [2025-03-15 02:52:25,686 INFO L298 CegarLoopForPetriNet]: 254 programPoint places, 67 predicate places. [2025-03-15 02:52:25,686 INFO L471 AbstractCegarLoop]: Abstraction has has 321 places, 840 transitions, 18546 flow [2025-03-15 02:52:25,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.0) internal successors, (615), 3 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:52:25,686 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:52:25,686 INFO L221 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:52:25,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-15 02:52:25,686 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:52:25,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:52:25,687 INFO L85 PathProgramCache]: Analyzing trace with hash -374875174, now seen corresponding path program 2 times [2025-03-15 02:52:25,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:52:25,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167395405] [2025-03-15 02:52:25,687 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 02:52:25,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:52:25,718 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-15 02:52:25,718 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 02:52:25,793 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-15 02:52:25,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:52:25,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167395405] [2025-03-15 02:52:25,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167395405] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:52:25,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743165801] [2025-03-15 02:52:25,794 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 02:52:25,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:52:25,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:52:25,797 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) [2025-03-15 02:52:25,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-15 02:52:25,890 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-15 02:52:25,890 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 02:52:25,892 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-15 02:52:25,894 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:52:26,012 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-15 02:52:26,013 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-15 02:52:26,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743165801] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:52:26,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-15 02:52:26,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2025-03-15 02:52:26,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552946073] [2025-03-15 02:52:26,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:52:26,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 02:52:26,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:52:26,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 02:52:26,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-15 02:52:26,014 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 253 [2025-03-15 02:52:26,015 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 840 transitions, 18546 flow. Second operand has 4 states, 4 states have (on average 204.5) internal successors, (818), 4 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:52:26,015 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:52:26,015 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 253 [2025-03-15 02:52:26,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:52:33,263 INFO L124 PetriNetUnfolderBase]: 17974/38437 cut-off events. [2025-03-15 02:52:33,264 INFO L125 PetriNetUnfolderBase]: For 880546/903489 co-relation queries the response was YES. [2025-03-15 02:52:33,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 360613 conditions, 38437 events. 17974/38437 cut-off events. For 880546/903489 co-relation queries the response was YES. Maximal size of possible extension queue 1330. Compared 402241 event pairs, 3930 based on Foata normal form. 20/25365 useless extension candidates. Maximal degree in co-relation 171456. Up to 22247 conditions per place. [2025-03-15 02:52:34,027 INFO L140 encePairwiseOnDemand]: 250/253 looper letters, 387 selfloop transitions, 13 changer transitions 62/834 dead transitions. [2025-03-15 02:52:34,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 834 transitions, 19244 flow [2025-03-15 02:52:34,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-15 02:52:34,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-15 02:52:34,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 856 transitions. [2025-03-15 02:52:34,028 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8458498023715415 [2025-03-15 02:52:34,029 INFO L298 CegarLoopForPetriNet]: 254 programPoint places, 69 predicate places. [2025-03-15 02:52:34,029 INFO L471 AbstractCegarLoop]: Abstraction has has 323 places, 834 transitions, 19244 flow [2025-03-15 02:52:34,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 204.5) internal successors, (818), 4 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:52:34,029 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:52:34,029 INFO L221 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:52:34,035 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-15 02:52:34,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:52:34,230 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:52:34,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:52:34,230 INFO L85 PathProgramCache]: Analyzing trace with hash -374875173, now seen corresponding path program 1 times [2025-03-15 02:52:34,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:52:34,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712908837] [2025-03-15 02:52:34,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:52:34,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:52:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:52:34,288 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-15 02:52:34,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:52:34,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712908837] [2025-03-15 02:52:34,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712908837] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:52:34,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084585595] [2025-03-15 02:52:34,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:52:34,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:52:34,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:52:34,291 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) [2025-03-15 02:52:34,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-15 02:52:34,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:52:34,377 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-15 02:52:34,380 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:52:34,497 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-15 02:52:34,497 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 02:52:34,623 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-15 02:52:34,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084585595] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 02:52:34,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 02:52:34,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-03-15 02:52:34,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778152516] [2025-03-15 02:52:34,624 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 02:52:34,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-15 02:52:34,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:52:34,625 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-15 02:52:34,625 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-15 02:52:34,625 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 253 [2025-03-15 02:52:34,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 834 transitions, 19244 flow. Second operand has 7 states, 7 states have (on average 205.28571428571428) internal successors, (1437), 7 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:52:34,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:52:34,626 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 253 [2025-03-15 02:52:34,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:52:50,057 INFO L124 PetriNetUnfolderBase]: 36374/74342 cut-off events. [2025-03-15 02:52:50,058 INFO L125 PetriNetUnfolderBase]: For 2001420/2035156 co-relation queries the response was YES. [2025-03-15 02:52:50,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 761918 conditions, 74342 events. 36374/74342 cut-off events. For 2001420/2035156 co-relation queries the response was YES. Maximal size of possible extension queue 2465. Compared 822555 event pairs, 4910 based on Foata normal form. 23/49325 useless extension candidates. Maximal degree in co-relation 496843. Up to 44714 conditions per place. [2025-03-15 02:52:51,755 INFO L140 encePairwiseOnDemand]: 250/253 looper letters, 672 selfloop transitions, 31 changer transitions 83/1158 dead transitions. [2025-03-15 02:52:51,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 1158 transitions, 31912 flow [2025-03-15 02:52:51,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-15 02:52:51,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-15 02:52:51,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1333 transitions. [2025-03-15 02:52:51,756 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.878129117259552 [2025-03-15 02:52:51,757 INFO L298 CegarLoopForPetriNet]: 254 programPoint places, 74 predicate places. [2025-03-15 02:52:51,757 INFO L471 AbstractCegarLoop]: Abstraction has has 328 places, 1158 transitions, 31912 flow [2025-03-15 02:52:51,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 205.28571428571428) internal successors, (1437), 7 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:52:51,757 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:52:51,757 INFO L221 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:52:51,763 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-15 02:52:51,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-03-15 02:52:51,958 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:52:51,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:52:51,959 INFO L85 PathProgramCache]: Analyzing trace with hash -180531196, now seen corresponding path program 1 times [2025-03-15 02:52:51,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:52:51,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787763827] [2025-03-15 02:52:51,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:52:51,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:52:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:52:52,085 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:52:52,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:52:52,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787763827] [2025-03-15 02:52:52,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787763827] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:52:52,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832033316] [2025-03-15 02:52:52,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:52:52,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:52:52,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:52:52,087 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) [2025-03-15 02:52:52,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-15 02:52:52,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:52:52,172 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-15 02:52:52,174 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:52:52,228 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:52:52,228 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 02:52:52,365 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:52:52,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832033316] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 02:52:52,365 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 02:52:52,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2025-03-15 02:52:52,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263481275] [2025-03-15 02:52:52,365 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 02:52:52,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-15 02:52:52,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:52:52,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-15 02:52:52,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2025-03-15 02:52:52,368 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 253 [2025-03-15 02:52:52,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 1158 transitions, 31912 flow. Second operand has 24 states, 24 states have (on average 183.375) internal successors, (4401), 24 states have internal predecessors, (4401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:52:52,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:52:52,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 253 [2025-03-15 02:52:52,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:53:09,120 INFO L124 PetriNetUnfolderBase]: 35398/73113 cut-off events. [2025-03-15 02:53:09,121 INFO L125 PetriNetUnfolderBase]: For 2125626/2162349 co-relation queries the response was YES. [2025-03-15 02:53:09,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 778863 conditions, 73113 events. 35398/73113 cut-off events. For 2125626/2162349 co-relation queries the response was YES. Maximal size of possible extension queue 2347. Compared 812882 event pairs, 5455 based on Foata normal form. 4/49336 useless extension candidates. Maximal degree in co-relation 536622. Up to 43727 conditions per place. [2025-03-15 02:53:10,662 INFO L140 encePairwiseOnDemand]: 240/253 looper letters, 926 selfloop transitions, 167 changer transitions 83/1374 dead transitions. [2025-03-15 02:53:10,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 1374 transitions, 37404 flow [2025-03-15 02:53:10,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-03-15 02:53:10,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2025-03-15 02:53:10,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 5991 transitions. [2025-03-15 02:53:10,666 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7399950592885376 [2025-03-15 02:53:10,666 INFO L298 CegarLoopForPetriNet]: 254 programPoint places, 105 predicate places. [2025-03-15 02:53:10,666 INFO L471 AbstractCegarLoop]: Abstraction has has 359 places, 1374 transitions, 37404 flow [2025-03-15 02:53:10,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 183.375) internal successors, (4401), 24 states have internal predecessors, (4401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:53:10,667 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:53:10,667 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:53:10,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-15 02:53:10,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-15 02:53:10,872 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:53:10,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:53:10,873 INFO L85 PathProgramCache]: Analyzing trace with hash -196144054, now seen corresponding path program 1 times [2025-03-15 02:53:10,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:53:10,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87427529] [2025-03-15 02:53:10,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:53:10,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:53:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:53:10,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-15 02:53:10,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:53:10,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87427529] [2025-03-15 02:53:10,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87427529] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:53:10,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:53:10,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-15 02:53:10,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111522277] [2025-03-15 02:53:10,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:53:10,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-15 02:53:10,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:53:10,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-15 02:53:10,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-15 02:53:10,988 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 253 [2025-03-15 02:53:10,989 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 1374 transitions, 37404 flow. Second operand has 3 states, 3 states have (on average 208.0) internal successors, (624), 3 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:53:10,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:53:10,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 253 [2025-03-15 02:53:10,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:53:33,897 INFO L124 PetriNetUnfolderBase]: 47334/86978 cut-off events. [2025-03-15 02:53:33,898 INFO L125 PetriNetUnfolderBase]: For 2171101/2221328 co-relation queries the response was YES. [2025-03-15 02:53:34,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1063144 conditions, 86978 events. 47334/86978 cut-off events. For 2171101/2221328 co-relation queries the response was YES. Maximal size of possible extension queue 2754. Compared 891879 event pairs, 12988 based on Foata normal form. 31/59213 useless extension candidates. Maximal degree in co-relation 742926. Up to 57208 conditions per place. [2025-03-15 02:53:36,293 INFO L140 encePairwiseOnDemand]: 246/253 looper letters, 1072 selfloop transitions, 71 changer transitions 134/1883 dead transitions. [2025-03-15 02:53:36,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 1883 transitions, 59864 flow [2025-03-15 02:53:36,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-15 02:53:36,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-15 02:53:36,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 662 transitions. [2025-03-15 02:53:36,294 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8722002635046113 [2025-03-15 02:53:36,295 INFO L298 CegarLoopForPetriNet]: 254 programPoint places, 107 predicate places. [2025-03-15 02:53:36,295 INFO L471 AbstractCegarLoop]: Abstraction has has 361 places, 1883 transitions, 59864 flow [2025-03-15 02:53:36,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.0) internal successors, (624), 3 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:53:36,295 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:53:36,295 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:53:36,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-15 02:53:36,296 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:53:36,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:53:36,296 INFO L85 PathProgramCache]: Analyzing trace with hash -196144057, now seen corresponding path program 1 times [2025-03-15 02:53:36,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:53:36,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396341473] [2025-03-15 02:53:36,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:53:36,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:53:36,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:53:37,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:53:37,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:53:37,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396341473] [2025-03-15 02:53:37,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396341473] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:53:37,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456735651] [2025-03-15 02:53:37,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:53:37,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:53:37,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:53:37,023 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) [2025-03-15 02:53:37,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-15 02:53:37,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:53:37,125 INFO L256 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 31 conjuncts are in the unsatisfiable core [2025-03-15 02:53:37,128 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:53:37,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2025-03-15 02:53:38,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:53:38,264 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 02:53:38,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2025-03-15 02:53:38,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2025-03-15 02:53:39,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:53:39,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456735651] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 02:53:39,323 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 02:53:39,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 14] total 42 [2025-03-15 02:53:39,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077020515] [2025-03-15 02:53:39,324 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 02:53:39,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2025-03-15 02:53:39,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:53:39,326 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2025-03-15 02:53:39,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1626, Unknown=0, NotChecked=0, Total=1806 [2025-03-15 02:53:39,328 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 253 [2025-03-15 02:53:39,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 1883 transitions, 59864 flow. Second operand has 43 states, 43 states have (on average 140.7674418604651) internal successors, (6053), 43 states have internal predecessors, (6053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:53:39,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:53:39,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 253 [2025-03-15 02:53:39,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand