/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/chl-exp-term-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.empire2-owicki-f61efc6-m [2025-03-15 02:21:56,687 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-15 02:21:56,752 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 02:21:56,774 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-15 02:21:56,774 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-15 02:21:56,774 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-15 02:21:56,775 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-15 02:21:56,775 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-15 02:21:56,775 INFO L153 SettingsManager]: * Use SBE=true [2025-03-15 02:21:56,775 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-15 02:21:56,775 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-15 02:21:56,775 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-15 02:21:56,775 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-15 02:21:56,775 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-15 02:21:56,775 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-15 02:21:56,775 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-15 02:21:56,775 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-15 02:21:56,775 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-15 02:21:56,777 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-15 02:21:56,777 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-15 02:21:56,778 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-15 02:21:56,778 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-15 02:21:56,778 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-15 02:21:56,778 INFO L153 SettingsManager]: * To the following directory=./dump/ [2025-03-15 02:21:56,778 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-15 02:21:56,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 02:21:56,778 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-15 02:21:56,778 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-15 02:21:56,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-15 02:21:56,778 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-15 02:21:56,778 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-15 02:21:56,778 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-15 02:21:56,778 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 02:21:57,018 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-15 02:21:57,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-15 02:21:57,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-15 02:21:57,026 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-15 02:21:57,026 INFO L274 PluginConnector]: CDTParser initialized [2025-03-15 02:21:57,027 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2025-03-15 02:21:58,161 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1493e018e/66bb7d75cec04a279c586412ff6467b0/FLAGe2b9fe949 [2025-03-15 02:21:58,334 INFO L384 CDTParser]: Found 1 translation units. [2025-03-15 02:21:58,334 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2025-03-15 02:21:58,339 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1493e018e/66bb7d75cec04a279c586412ff6467b0/FLAGe2b9fe949 [2025-03-15 02:21:58,351 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1493e018e/66bb7d75cec04a279c586412ff6467b0 [2025-03-15 02:21:58,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-15 02:21:58,354 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-03-15 02:21:58,355 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-15 02:21:58,355 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-15 02:21:58,358 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-15 02:21:58,358 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:21:58" (1/1) ... [2025-03-15 02:21:58,359 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f377f9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:21:58, skipping insertion in model container [2025-03-15 02:21:58,359 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:21:58" (1/1) ... [2025-03-15 02:21:58,369 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-15 02:21:58,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 02:21:58,512 INFO L200 MainTranslator]: Completed pre-run [2025-03-15 02:21:58,532 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 02:21:58,546 INFO L204 MainTranslator]: Completed translation [2025-03-15 02:21:58,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:21:58 WrapperNode [2025-03-15 02:21:58,547 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-15 02:21:58,548 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-15 02:21:58,548 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-15 02:21:58,548 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-15 02:21:58,554 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:21:58" (1/1) ... [2025-03-15 02:21:58,564 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:21:58" (1/1) ... [2025-03-15 02:21:58,585 INFO L138 Inliner]: procedures = 21, calls = 16, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 153 [2025-03-15 02:21:58,586 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-15 02:21:58,586 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-15 02:21:58,586 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-15 02:21:58,586 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-15 02:21:58,592 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:21:58" (1/1) ... [2025-03-15 02:21:58,593 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:21:58" (1/1) ... [2025-03-15 02:21:58,596 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:21:58" (1/1) ... [2025-03-15 02:21:58,597 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:21:58" (1/1) ... [2025-03-15 02:21:58,600 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:21:58" (1/1) ... [2025-03-15 02:21:58,605 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:21:58" (1/1) ... [2025-03-15 02:21:58,611 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:21:58" (1/1) ... [2025-03-15 02:21:58,612 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:21:58" (1/1) ... [2025-03-15 02:21:58,612 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:21:58" (1/1) ... [2025-03-15 02:21:58,617 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-15 02:21:58,618 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-15 02:21:58,618 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-15 02:21:58,618 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-15 02:21:58,619 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:21:58" (1/1) ... [2025-03-15 02:21:58,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 02:21:58,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:21:58,648 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 02:21:58,652 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 02:21:58,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-15 02:21:58,670 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-15 02:21:58,670 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-15 02:21:58,670 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-15 02:21:58,670 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-15 02:21:58,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-15 02:21:58,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-15 02:21:58,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-15 02:21:58,671 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 02:21:58,730 INFO L234 CfgBuilder]: Building ICFG [2025-03-15 02:21:58,731 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-15 02:21:58,980 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-15 02:21:58,980 INFO L283 CfgBuilder]: Performing block encoding [2025-03-15 02:21:58,993 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-15 02:21:58,995 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-15 02:21:58,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:21:58 BoogieIcfgContainer [2025-03-15 02:21:58,996 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-15 02:21:58,998 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-15 02:21:58,998 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-15 02:21:59,003 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-15 02:21:59,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 02:21:58" (1/3) ... [2025-03-15 02:21:59,003 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53bb6edb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:21:59, skipping insertion in model container [2025-03-15 02:21:59,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:21:58" (2/3) ... [2025-03-15 02:21:59,004 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53bb6edb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:21:59, skipping insertion in model container [2025-03-15 02:21:59,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:21:58" (3/3) ... [2025-03-15 02:21:59,005 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-exp-term-symm.wvr.c [2025-03-15 02:21:59,014 INFO L303 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-15 02:21:59,016 INFO L169 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-exp-term-symm.wvr.c that has 3 procedures, 200 locations, 1 initial locations, 0 loop locations, and 12 error locations. [2025-03-15 02:21:59,016 INFO L581 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-15 02:21:59,092 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-15 02:21:59,130 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-15 02:21:59,138 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;@387e4557, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-15 02:21:59,139 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2025-03-15 02:21:59,174 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-15 02:21:59,175 INFO L124 PetriNetUnfolderBase]: 4/88 cut-off events. [2025-03-15 02:21:59,179 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-15 02:21:59,180 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:21:59,180 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] [2025-03-15 02:21:59,181 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-15 02:21:59,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:21:59,186 INFO L85 PathProgramCache]: Analyzing trace with hash -397436834, now seen corresponding path program 1 times [2025-03-15 02:21:59,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:21:59,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904963783] [2025-03-15 02:21:59,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:21:59,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:21:59,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:21:59,422 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 02:21:59,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:21:59,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904963783] [2025-03-15 02:21:59,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904963783] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:21:59,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:21:59,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 02:21:59,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874008291] [2025-03-15 02:21:59,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:21:59,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 02:21:59,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:21:59,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 02:21:59,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-15 02:21:59,461 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 216 [2025-03-15 02:21:59,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 216 transitions, 446 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 02:21:59,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:21:59,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 216 [2025-03-15 02:21:59,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:21:59,669 INFO L124 PetriNetUnfolderBase]: 56/475 cut-off events. [2025-03-15 02:21:59,669 INFO L125 PetriNetUnfolderBase]: For 41/42 co-relation queries the response was YES. [2025-03-15 02:21:59,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 652 conditions, 475 events. 56/475 cut-off events. For 41/42 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2547 event pairs, 13 based on Foata normal form. 35/436 useless extension candidates. Maximal degree in co-relation 578. Up to 49 conditions per place. [2025-03-15 02:21:59,683 INFO L140 encePairwiseOnDemand]: 200/216 looper letters, 34 selfloop transitions, 5 changer transitions 23/212 dead transitions. [2025-03-15 02:21:59,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 212 transitions, 522 flow [2025-03-15 02:21:59,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-15 02:21:59,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-15 02:21:59,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 777 transitions. [2025-03-15 02:21:59,697 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8993055555555556 [2025-03-15 02:21:59,701 INFO L298 CegarLoopForPetriNet]: 206 programPoint places, -7 predicate places. [2025-03-15 02:21:59,701 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 212 transitions, 522 flow [2025-03-15 02:21:59,702 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 02:21:59,702 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:21:59,702 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] [2025-03-15 02:21:59,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-15 02:21:59,703 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-15 02:21:59,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:21:59,704 INFO L85 PathProgramCache]: Analyzing trace with hash 564360597, now seen corresponding path program 1 times [2025-03-15 02:21:59,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:21:59,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217076602] [2025-03-15 02:21:59,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:21:59,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:21:59,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:21:59,856 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 02:21:59,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:21:59,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217076602] [2025-03-15 02:21:59,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217076602] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:21:59,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:21:59,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 02:21:59,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567918127] [2025-03-15 02:21:59,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:21:59,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 02:21:59,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:21:59,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 02:21:59,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-15 02:21:59,862 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 216 [2025-03-15 02:21:59,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 212 transitions, 522 flow. Second operand has 6 states, 6 states have (on average 172.33333333333334) internal successors, (1034), 6 states have internal predecessors, (1034), 0 states have call successors, (0), 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 02:21:59,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:21:59,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 216 [2025-03-15 02:21:59,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:22:00,068 INFO L124 PetriNetUnfolderBase]: 156/714 cut-off events. [2025-03-15 02:22:00,068 INFO L125 PetriNetUnfolderBase]: For 125/125 co-relation queries the response was YES. [2025-03-15 02:22:00,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1294 conditions, 714 events. 156/714 cut-off events. For 125/125 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4418 event pairs, 15 based on Foata normal form. 0/585 useless extension candidates. Maximal degree in co-relation 1195. Up to 214 conditions per place. [2025-03-15 02:22:00,072 INFO L140 encePairwiseOnDemand]: 208/216 looper letters, 45 selfloop transitions, 8 changer transitions 23/219 dead transitions. [2025-03-15 02:22:00,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 219 transitions, 652 flow [2025-03-15 02:22:00,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-15 02:22:00,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-15 02:22:00,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1064 transitions. [2025-03-15 02:22:00,075 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8209876543209876 [2025-03-15 02:22:00,075 INFO L298 CegarLoopForPetriNet]: 206 programPoint places, -3 predicate places. [2025-03-15 02:22:00,076 INFO L471 AbstractCegarLoop]: Abstraction has has 203 places, 219 transitions, 652 flow [2025-03-15 02:22:00,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 172.33333333333334) internal successors, (1034), 6 states have internal predecessors, (1034), 0 states have call successors, (0), 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 02:22:00,076 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:22:00,076 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] [2025-03-15 02:22:00,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-15 02:22:00,076 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-15 02:22:00,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:22:00,077 INFO L85 PathProgramCache]: Analyzing trace with hash -118680001, now seen corresponding path program 1 times [2025-03-15 02:22:00,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:22:00,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875537262] [2025-03-15 02:22:00,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:22:00,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:22:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:22:00,154 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 02:22:00,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:22:00,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875537262] [2025-03-15 02:22:00,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875537262] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:22:00,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:22:00,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 02:22:00,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955226992] [2025-03-15 02:22:00,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:22:00,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 02:22:00,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:22:00,156 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 02:22:00,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-15 02:22:00,157 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 216 [2025-03-15 02:22:00,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 219 transitions, 652 flow. Second operand has 4 states, 4 states have (on average 181.75) internal successors, (727), 4 states have internal predecessors, (727), 0 states have call successors, (0), 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 02:22:00,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:22:00,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 216 [2025-03-15 02:22:00,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:22:00,297 INFO L124 PetriNetUnfolderBase]: 192/854 cut-off events. [2025-03-15 02:22:00,297 INFO L125 PetriNetUnfolderBase]: For 671/1016 co-relation queries the response was YES. [2025-03-15 02:22:00,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1672 conditions, 854 events. 192/854 cut-off events. For 671/1016 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 5940 event pairs, 28 based on Foata normal form. 0/699 useless extension candidates. Maximal degree in co-relation 1291. Up to 214 conditions per place. [2025-03-15 02:22:00,305 INFO L140 encePairwiseOnDemand]: 208/216 looper letters, 38 selfloop transitions, 5 changer transitions 23/231 dead transitions. [2025-03-15 02:22:00,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 231 transitions, 778 flow [2025-03-15 02:22:00,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-15 02:22:00,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-15 02:22:00,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 763 transitions. [2025-03-15 02:22:00,308 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8831018518518519 [2025-03-15 02:22:00,308 INFO L298 CegarLoopForPetriNet]: 206 programPoint places, -1 predicate places. [2025-03-15 02:22:00,308 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 231 transitions, 778 flow [2025-03-15 02:22:00,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 181.75) internal successors, (727), 4 states have internal predecessors, (727), 0 states have call successors, (0), 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 02:22:00,309 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:22:00,309 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] [2025-03-15 02:22:00,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-15 02:22:00,309 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-15 02:22:00,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:22:00,312 INFO L85 PathProgramCache]: Analyzing trace with hash 615887896, now seen corresponding path program 1 times [2025-03-15 02:22:00,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:22:00,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598846413] [2025-03-15 02:22:00,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:22:00,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:22:00,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:22:00,422 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 02:22:00,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:22:00,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598846413] [2025-03-15 02:22:00,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598846413] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:22:00,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:22:00,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 02:22:00,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255785238] [2025-03-15 02:22:00,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:22:00,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 02:22:00,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:22:00,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 02:22:00,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-15 02:22:00,425 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 216 [2025-03-15 02:22:00,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 231 transitions, 778 flow. Second operand has 6 states, 6 states have (on average 172.5) internal successors, (1035), 6 states have internal predecessors, (1035), 0 states have call successors, (0), 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 02:22:00,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:22:00,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 216 [2025-03-15 02:22:00,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:22:00,669 INFO L124 PetriNetUnfolderBase]: 290/1404 cut-off events. [2025-03-15 02:22:00,670 INFO L125 PetriNetUnfolderBase]: For 898/922 co-relation queries the response was YES. [2025-03-15 02:22:00,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3033 conditions, 1404 events. 290/1404 cut-off events. For 898/922 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 10318 event pairs, 17 based on Foata normal form. 0/1142 useless extension candidates. Maximal degree in co-relation 2594. Up to 286 conditions per place. [2025-03-15 02:22:00,681 INFO L140 encePairwiseOnDemand]: 208/216 looper letters, 53 selfloop transitions, 10 changer transitions 23/238 dead transitions. [2025-03-15 02:22:00,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 238 transitions, 948 flow [2025-03-15 02:22:00,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-15 02:22:00,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-15 02:22:00,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1064 transitions. [2025-03-15 02:22:00,684 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8209876543209876 [2025-03-15 02:22:00,685 INFO L298 CegarLoopForPetriNet]: 206 programPoint places, 3 predicate places. [2025-03-15 02:22:00,685 INFO L471 AbstractCegarLoop]: Abstraction has has 209 places, 238 transitions, 948 flow [2025-03-15 02:22:00,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 172.5) internal successors, (1035), 6 states have internal predecessors, (1035), 0 states have call successors, (0), 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 02:22:00,686 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:22:00,686 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] [2025-03-15 02:22:00,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-15 02:22:00,687 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-15 02:22:00,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:22:00,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1399275684, now seen corresponding path program 1 times [2025-03-15 02:22:00,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:22:00,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129041056] [2025-03-15 02:22:00,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:22:00,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:22:00,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:22:00,779 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 02:22:00,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:22:00,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129041056] [2025-03-15 02:22:00,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129041056] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:22:00,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:22:00,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 02:22:00,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388383944] [2025-03-15 02:22:00,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:22:00,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 02:22:00,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:22:00,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 02:22:00,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-15 02:22:00,781 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 216 [2025-03-15 02:22:00,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 238 transitions, 948 flow. Second operand has 6 states, 6 states have (on average 172.33333333333334) internal successors, (1034), 6 states have internal predecessors, (1034), 0 states have call successors, (0), 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 02:22:00,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:22:00,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 216 [2025-03-15 02:22:00,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:22:00,991 INFO L124 PetriNetUnfolderBase]: 286/1394 cut-off events. [2025-03-15 02:22:00,991 INFO L125 PetriNetUnfolderBase]: For 1366/1406 co-relation queries the response was YES. [2025-03-15 02:22:01,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3416 conditions, 1394 events. 286/1394 cut-off events. For 1366/1406 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 10149 event pairs, 17 based on Foata normal form. 0/1139 useless extension candidates. Maximal degree in co-relation 2930. Up to 286 conditions per place. [2025-03-15 02:22:01,014 INFO L140 encePairwiseOnDemand]: 208/216 looper letters, 52 selfloop transitions, 10 changer transitions 23/237 dead transitions. [2025-03-15 02:22:01,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 237 transitions, 1068 flow [2025-03-15 02:22:01,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-15 02:22:01,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-15 02:22:01,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1063 transitions. [2025-03-15 02:22:01,016 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8202160493827161 [2025-03-15 02:22:01,019 INFO L298 CegarLoopForPetriNet]: 206 programPoint places, 7 predicate places. [2025-03-15 02:22:01,019 INFO L471 AbstractCegarLoop]: Abstraction has has 213 places, 237 transitions, 1068 flow [2025-03-15 02:22:01,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 172.33333333333334) internal successors, (1034), 6 states have internal predecessors, (1034), 0 states have call successors, (0), 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 02:22:01,020 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:22:01,020 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] [2025-03-15 02:22:01,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-15 02:22:01,020 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-15 02:22:01,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:22:01,021 INFO L85 PathProgramCache]: Analyzing trace with hash -427872664, now seen corresponding path program 1 times [2025-03-15 02:22:01,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:22:01,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088954368] [2025-03-15 02:22:01,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:22:01,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:22:01,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:22:01,078 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 02:22:01,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:22:01,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088954368] [2025-03-15 02:22:01,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088954368] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:22:01,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:22:01,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 02:22:01,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395537637] [2025-03-15 02:22:01,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:22:01,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 02:22:01,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:22:01,079 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 02:22:01,079 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-15 02:22:01,080 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 216 [2025-03-15 02:22:01,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 237 transitions, 1068 flow. Second operand has 4 states, 4 states have (on average 182.5) internal successors, (730), 4 states have internal predecessors, (730), 0 states have call successors, (0), 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 02:22:01,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:22:01,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 216 [2025-03-15 02:22:01,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:22:01,230 INFO L124 PetriNetUnfolderBase]: 280/1388 cut-off events. [2025-03-15 02:22:01,230 INFO L125 PetriNetUnfolderBase]: For 1806/1846 co-relation queries the response was YES. [2025-03-15 02:22:01,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3650 conditions, 1388 events. 280/1388 cut-off events. For 1806/1846 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 10117 event pairs, 17 based on Foata normal form. 0/1139 useless extension candidates. Maximal degree in co-relation 3126. Up to 286 conditions per place. [2025-03-15 02:22:01,239 INFO L140 encePairwiseOnDemand]: 211/216 looper letters, 41 selfloop transitions, 4 changer transitions 23/239 dead transitions. [2025-03-15 02:22:01,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 239 transitions, 1197 flow [2025-03-15 02:22:01,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-15 02:22:01,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-15 02:22:01,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 758 transitions. [2025-03-15 02:22:01,241 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8773148148148148 [2025-03-15 02:22:01,243 INFO L298 CegarLoopForPetriNet]: 206 programPoint places, 10 predicate places. [2025-03-15 02:22:01,243 INFO L471 AbstractCegarLoop]: Abstraction has has 216 places, 239 transitions, 1197 flow [2025-03-15 02:22:01,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 182.5) internal successors, (730), 4 states have internal predecessors, (730), 0 states have call successors, (0), 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 02:22:01,244 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:22:01,244 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] [2025-03-15 02:22:01,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-15 02:22:01,244 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-15 02:22:01,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:22:01,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1891805223, now seen corresponding path program 1 times [2025-03-15 02:22:01,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:22:01,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515004744] [2025-03-15 02:22:01,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:22:01,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:22:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:22:01,316 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 02:22:01,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:22:01,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515004744] [2025-03-15 02:22:01,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515004744] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:22:01,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:22:01,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 02:22:01,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790276894] [2025-03-15 02:22:01,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:22:01,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 02:22:01,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:22:01,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 02:22:01,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-15 02:22:01,318 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 216 [2025-03-15 02:22:01,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 239 transitions, 1197 flow. Second operand has 4 states, 4 states have (on average 182.75) internal successors, (731), 4 states have internal predecessors, (731), 0 states have call successors, (0), 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 02:22:01,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:22:01,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 216 [2025-03-15 02:22:01,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:22:01,509 INFO L124 PetriNetUnfolderBase]: 310/1502 cut-off events. [2025-03-15 02:22:01,510 INFO L125 PetriNetUnfolderBase]: For 2712/2752 co-relation queries the response was YES. [2025-03-15 02:22:01,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4376 conditions, 1502 events. 310/1502 cut-off events. For 2712/2752 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 11354 event pairs, 17 based on Foata normal form. 6/1236 useless extension candidates. Maximal degree in co-relation 3814. Up to 286 conditions per place. [2025-03-15 02:22:01,522 INFO L140 encePairwiseOnDemand]: 211/216 looper letters, 49 selfloop transitions, 5 changer transitions 23/250 dead transitions. [2025-03-15 02:22:01,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 250 transitions, 1429 flow [2025-03-15 02:22:01,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-15 02:22:01,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-15 02:22:01,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 755 transitions. [2025-03-15 02:22:01,524 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8738425925925926 [2025-03-15 02:22:01,524 INFO L298 CegarLoopForPetriNet]: 206 programPoint places, 12 predicate places. [2025-03-15 02:22:01,524 INFO L471 AbstractCegarLoop]: Abstraction has has 218 places, 250 transitions, 1429 flow [2025-03-15 02:22:01,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 182.75) internal successors, (731), 4 states have internal predecessors, (731), 0 states have call successors, (0), 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 02:22:01,525 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:22:01,526 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] [2025-03-15 02:22:01,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-15 02:22:01,526 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-15 02:22:01,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:22:01,526 INFO L85 PathProgramCache]: Analyzing trace with hash 208743647, now seen corresponding path program 1 times [2025-03-15 02:22:01,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:22:01,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575261127] [2025-03-15 02:22:01,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:22:01,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:22:01,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:22:01,617 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 02:22:01,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:22:01,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575261127] [2025-03-15 02:22:01,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575261127] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:22:01,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:22:01,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 02:22:01,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943259821] [2025-03-15 02:22:01,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:22:01,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 02:22:01,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:22:01,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 02:22:01,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-15 02:22:01,618 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 216 [2025-03-15 02:22:01,619 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 250 transitions, 1429 flow. Second operand has 6 states, 6 states have (on average 172.5) internal successors, (1035), 6 states have internal predecessors, (1035), 0 states have call successors, (0), 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 02:22:01,619 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:22:01,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 216 [2025-03-15 02:22:01,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:22:01,805 INFO L124 PetriNetUnfolderBase]: 306/1490 cut-off events. [2025-03-15 02:22:01,805 INFO L125 PetriNetUnfolderBase]: For 3356/3428 co-relation queries the response was YES. [2025-03-15 02:22:01,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4828 conditions, 1490 events. 306/1490 cut-off events. For 3356/3428 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 11217 event pairs, 17 based on Foata normal form. 6/1233 useless extension candidates. Maximal degree in co-relation 4205. Up to 276 conditions per place. [2025-03-15 02:22:01,817 INFO L140 encePairwiseOnDemand]: 208/216 looper letters, 59 selfloop transitions, 10 changer transitions 23/249 dead transitions. [2025-03-15 02:22:01,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 249 transitions, 1563 flow [2025-03-15 02:22:01,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-15 02:22:01,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-15 02:22:01,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1063 transitions. [2025-03-15 02:22:01,820 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8202160493827161 [2025-03-15 02:22:01,820 INFO L298 CegarLoopForPetriNet]: 206 programPoint places, 16 predicate places. [2025-03-15 02:22:01,820 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 249 transitions, 1563 flow [2025-03-15 02:22:01,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 172.5) internal successors, (1035), 6 states have internal predecessors, (1035), 0 states have call successors, (0), 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 02:22:01,821 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:22:01,821 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] [2025-03-15 02:22:01,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-15 02:22:01,821 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-15 02:22:01,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:22:01,821 INFO L85 PathProgramCache]: Analyzing trace with hash -2118880887, now seen corresponding path program 1 times [2025-03-15 02:22:01,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:22:01,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419132299] [2025-03-15 02:22:01,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:22:01,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:22:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:22:01,882 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 02:22:01,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:22:01,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419132299] [2025-03-15 02:22:01,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419132299] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:22:01,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:22:01,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 02:22:01,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70110870] [2025-03-15 02:22:01,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:22:01,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 02:22:01,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:22:01,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 02:22:01,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-15 02:22:01,883 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 216 [2025-03-15 02:22:01,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 249 transitions, 1563 flow. Second operand has 4 states, 4 states have (on average 182.75) internal successors, (731), 4 states have internal predecessors, (731), 0 states have call successors, (0), 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 02:22:01,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:22:01,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 216 [2025-03-15 02:22:01,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:22:02,033 INFO L124 PetriNetUnfolderBase]: 298/1482 cut-off events. [2025-03-15 02:22:02,033 INFO L125 PetriNetUnfolderBase]: For 3936/3998 co-relation queries the response was YES. [2025-03-15 02:22:02,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5130 conditions, 1482 events. 298/1482 cut-off events. For 3936/3998 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 11220 event pairs, 17 based on Foata normal form. 0/1227 useless extension candidates. Maximal degree in co-relation 4443. Up to 276 conditions per place. [2025-03-15 02:22:02,046 INFO L140 encePairwiseOnDemand]: 211/216 looper letters, 48 selfloop transitions, 4 changer transitions 23/251 dead transitions. [2025-03-15 02:22:02,046 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 251 transitions, 1724 flow [2025-03-15 02:22:02,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-15 02:22:02,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-15 02:22:02,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 758 transitions. [2025-03-15 02:22:02,047 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8773148148148148 [2025-03-15 02:22:02,048 INFO L298 CegarLoopForPetriNet]: 206 programPoint places, 19 predicate places. [2025-03-15 02:22:02,048 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 251 transitions, 1724 flow [2025-03-15 02:22:02,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 182.75) internal successors, (731), 4 states have internal predecessors, (731), 0 states have call successors, (0), 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 02:22:02,048 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:22:02,048 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] [2025-03-15 02:22:02,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-15 02:22:02,049 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-15 02:22:02,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:22:02,049 INFO L85 PathProgramCache]: Analyzing trace with hash -633207091, now seen corresponding path program 1 times [2025-03-15 02:22:02,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:22:02,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583637020] [2025-03-15 02:22:02,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:22:02,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:22:02,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:22:02,158 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 02:22:02,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:22:02,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583637020] [2025-03-15 02:22:02,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583637020] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:22:02,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:22:02,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-15 02:22:02,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746102275] [2025-03-15 02:22:02,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:22:02,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-15 02:22:02,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:22:02,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-15 02:22:02,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-15 02:22:02,160 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 216 [2025-03-15 02:22:02,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 251 transitions, 1724 flow. Second operand has 8 states, 8 states have (on average 167.25) internal successors, (1338), 8 states have internal predecessors, (1338), 0 states have call successors, (0), 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 02:22:02,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:22:02,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 216 [2025-03-15 02:22:02,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:22:02,419 INFO L124 PetriNetUnfolderBase]: 312/1485 cut-off events. [2025-03-15 02:22:02,419 INFO L125 PetriNetUnfolderBase]: For 4986/5070 co-relation queries the response was YES. [2025-03-15 02:22:02,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5633 conditions, 1485 events. 312/1485 cut-off events. For 4986/5070 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 11241 event pairs, 17 based on Foata normal form. 0/1237 useless extension candidates. Maximal degree in co-relation 4900. Up to 274 conditions per place. [2025-03-15 02:22:02,451 INFO L140 encePairwiseOnDemand]: 204/216 looper letters, 78 selfloop transitions, 15 changer transitions 23/261 dead transitions. [2025-03-15 02:22:02,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 261 transitions, 2047 flow [2025-03-15 02:22:02,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-15 02:22:02,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-15 02:22:02,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1380 transitions. [2025-03-15 02:22:02,455 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7986111111111112 [2025-03-15 02:22:02,455 INFO L298 CegarLoopForPetriNet]: 206 programPoint places, 26 predicate places. [2025-03-15 02:22:02,455 INFO L471 AbstractCegarLoop]: Abstraction has has 232 places, 261 transitions, 2047 flow [2025-03-15 02:22:02,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 167.25) internal successors, (1338), 8 states have internal predecessors, (1338), 0 states have call successors, (0), 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 02:22:02,456 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:22:02,456 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] [2025-03-15 02:22:02,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-15 02:22:02,457 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-15 02:22:02,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:22:02,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1845417251, now seen corresponding path program 1 times [2025-03-15 02:22:02,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:22:02,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160282525] [2025-03-15 02:22:02,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:22:02,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:22:02,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:22:02,545 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 02:22:02,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:22:02,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160282525] [2025-03-15 02:22:02,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160282525] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:22:02,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:22:02,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-15 02:22:02,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358333190] [2025-03-15 02:22:02,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:22:02,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-15 02:22:02,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:22:02,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-15 02:22:02,546 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-15 02:22:02,546 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 216 [2025-03-15 02:22:02,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 261 transitions, 2047 flow. Second operand has 8 states, 8 states have (on average 167.375) internal successors, (1339), 8 states have internal predecessors, (1339), 0 states have call successors, (0), 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 02:22:02,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:22:02,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 216 [2025-03-15 02:22:02,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:22:02,849 INFO L124 PetriNetUnfolderBase]: 334/1495 cut-off events. [2025-03-15 02:22:02,849 INFO L125 PetriNetUnfolderBase]: For 6224/6326 co-relation queries the response was YES. [2025-03-15 02:22:02,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6212 conditions, 1495 events. 334/1495 cut-off events. For 6224/6326 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 11119 event pairs, 17 based on Foata normal form. 0/1251 useless extension candidates. Maximal degree in co-relation 5433. Up to 284 conditions per place. [2025-03-15 02:22:02,862 INFO L140 encePairwiseOnDemand]: 204/216 looper letters, 92 selfloop transitions, 16 changer transitions 24/277 dead transitions. [2025-03-15 02:22:02,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 277 transitions, 2533 flow [2025-03-15 02:22:02,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-15 02:22:02,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-15 02:22:02,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1379 transitions. [2025-03-15 02:22:02,866 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7980324074074074 [2025-03-15 02:22:02,866 INFO L298 CegarLoopForPetriNet]: 206 programPoint places, 33 predicate places. [2025-03-15 02:22:02,866 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 277 transitions, 2533 flow [2025-03-15 02:22:02,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 167.375) internal successors, (1339), 8 states have internal predecessors, (1339), 0 states have call successors, (0), 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 02:22:02,867 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:22:02,867 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] [2025-03-15 02:22:02,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-15 02:22:02,867 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-15 02:22:02,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:22:02,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1248672988, now seen corresponding path program 1 times [2025-03-15 02:22:02,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:22:02,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121644220] [2025-03-15 02:22:02,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:22:02,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:22:02,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:22:02,926 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 02:22:02,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:22:02,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121644220] [2025-03-15 02:22:02,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121644220] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:22:02,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:22:02,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 02:22:02,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003461109] [2025-03-15 02:22:02,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:22:02,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 02:22:02,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:22:02,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 02:22:02,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-15 02:22:02,927 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 216 [2025-03-15 02:22:02,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 277 transitions, 2533 flow. Second operand has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 0 states have call successors, (0), 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 02:22:02,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:22:02,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 216 [2025-03-15 02:22:02,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:22:03,121 INFO L124 PetriNetUnfolderBase]: 338/1539 cut-off events. [2025-03-15 02:22:03,122 INFO L125 PetriNetUnfolderBase]: For 7523/7655 co-relation queries the response was YES. [2025-03-15 02:22:03,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6652 conditions, 1539 events. 338/1539 cut-off events. For 7523/7655 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 11812 event pairs, 17 based on Foata normal form. 0/1296 useless extension candidates. Maximal degree in co-relation 5703. Up to 284 conditions per place. [2025-03-15 02:22:03,132 INFO L140 encePairwiseOnDemand]: 208/216 looper letters, 62 selfloop transitions, 8 changer transitions 24/282 dead transitions. [2025-03-15 02:22:03,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 282 transitions, 2719 flow [2025-03-15 02:22:03,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-15 02:22:03,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-15 02:22:03,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1103 transitions. [2025-03-15 02:22:03,134 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8510802469135802 [2025-03-15 02:22:03,135 INFO L298 CegarLoopForPetriNet]: 206 programPoint places, 37 predicate places. [2025-03-15 02:22:03,135 INFO L471 AbstractCegarLoop]: Abstraction has has 243 places, 282 transitions, 2719 flow [2025-03-15 02:22:03,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 179.0) internal successors, (895), 5 states have internal predecessors, (895), 0 states have call successors, (0), 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 02:22:03,136 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:22:03,136 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] [2025-03-15 02:22:03,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-15 02:22:03,136 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-15 02:22:03,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:22:03,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1247963266, now seen corresponding path program 1 times [2025-03-15 02:22:03,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:22:03,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968393572] [2025-03-15 02:22:03,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:22:03,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:22:03,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:22:03,238 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 02:22:03,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:22:03,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968393572] [2025-03-15 02:22:03,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968393572] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:22:03,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:22:03,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 02:22:03,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159271757] [2025-03-15 02:22:03,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:22:03,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 02:22:03,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:22:03,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 02:22:03,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-15 02:22:03,240 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 216 [2025-03-15 02:22:03,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 282 transitions, 2719 flow. Second operand has 6 states, 6 states have (on average 170.0) internal successors, (1020), 6 states have internal predecessors, (1020), 0 states have call successors, (0), 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 02:22:03,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:22:03,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 216 [2025-03-15 02:22:03,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:22:03,463 INFO L124 PetriNetUnfolderBase]: 364/1559 cut-off events. [2025-03-15 02:22:03,463 INFO L125 PetriNetUnfolderBase]: For 11307/11439 co-relation queries the response was YES. [2025-03-15 02:22:03,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7527 conditions, 1559 events. 364/1559 cut-off events. For 11307/11439 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 12021 event pairs, 17 based on Foata normal form. 0/1323 useless extension candidates. Maximal degree in co-relation 6534. Up to 304 conditions per place. [2025-03-15 02:22:03,473 INFO L140 encePairwiseOnDemand]: 207/216 looper letters, 88 selfloop transitions, 11 changer transitions 26/302 dead transitions. [2025-03-15 02:22:03,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 302 transitions, 3165 flow [2025-03-15 02:22:03,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-15 02:22:03,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-15 02:22:03,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1223 transitions. [2025-03-15 02:22:03,478 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8088624338624338 [2025-03-15 02:22:03,478 INFO L298 CegarLoopForPetriNet]: 206 programPoint places, 42 predicate places. [2025-03-15 02:22:03,478 INFO L471 AbstractCegarLoop]: Abstraction has has 248 places, 302 transitions, 3165 flow [2025-03-15 02:22:03,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 170.0) internal successors, (1020), 6 states have internal predecessors, (1020), 0 states have call successors, (0), 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 02:22:03,478 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:22:03,479 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] [2025-03-15 02:22:03,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-15 02:22:03,479 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-15 02:22:03,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:22:03,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1404941047, now seen corresponding path program 1 times [2025-03-15 02:22:03,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:22:03,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587020430] [2025-03-15 02:22:03,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:22:03,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:22:03,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:22:03,566 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 02:22:03,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:22:03,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587020430] [2025-03-15 02:22:03,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587020430] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:22:03,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:22:03,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 02:22:03,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949428010] [2025-03-15 02:22:03,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:22:03,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 02:22:03,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:22:03,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 02:22:03,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-15 02:22:03,568 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 216 [2025-03-15 02:22:03,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 302 transitions, 3165 flow. Second operand has 6 states, 6 states have (on average 170.16666666666666) internal successors, (1021), 6 states have internal predecessors, (1021), 0 states have call successors, (0), 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 02:22:03,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:22:03,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 216 [2025-03-15 02:22:03,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:22:03,823 INFO L124 PetriNetUnfolderBase]: 360/1549 cut-off events. [2025-03-15 02:22:03,823 INFO L125 PetriNetUnfolderBase]: For 12312/12444 co-relation queries the response was YES. [2025-03-15 02:22:03,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7956 conditions, 1549 events. 360/1549 cut-off events. For 12312/12444 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 11945 event pairs, 17 based on Foata normal form. 0/1320 useless extension candidates. Maximal degree in co-relation 6919. Up to 345 conditions per place. [2025-03-15 02:22:03,835 INFO L140 encePairwiseOnDemand]: 207/216 looper letters, 98 selfloop transitions, 13 changer transitions 40/314 dead transitions. [2025-03-15 02:22:03,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 314 transitions, 3612 flow [2025-03-15 02:22:03,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-15 02:22:03,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-15 02:22:03,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1214 transitions. [2025-03-15 02:22:03,838 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8029100529100529 [2025-03-15 02:22:03,838 INFO L298 CegarLoopForPetriNet]: 206 programPoint places, 47 predicate places. [2025-03-15 02:22:03,838 INFO L471 AbstractCegarLoop]: Abstraction has has 253 places, 314 transitions, 3612 flow [2025-03-15 02:22:03,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 170.16666666666666) internal successors, (1021), 6 states have internal predecessors, (1021), 0 states have call successors, (0), 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 02:22:03,839 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:22:03,839 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] [2025-03-15 02:22:03,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-15 02:22:03,839 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-15 02:22:03,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:22:03,839 INFO L85 PathProgramCache]: Analyzing trace with hash 80635566, now seen corresponding path program 1 times [2025-03-15 02:22:03,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:22:03,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091495873] [2025-03-15 02:22:03,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:22:03,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:22:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:22:03,924 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 02:22:03,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:22:03,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091495873] [2025-03-15 02:22:03,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091495873] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:22:03,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:22:03,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-15 02:22:03,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004363388] [2025-03-15 02:22:03,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:22:03,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-15 02:22:03,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:22:03,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-15 02:22:03,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-15 02:22:03,926 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 216 [2025-03-15 02:22:03,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 314 transitions, 3612 flow. Second operand has 8 states, 8 states have (on average 167.375) internal successors, (1339), 8 states have internal predecessors, (1339), 0 states have call successors, (0), 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 02:22:03,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:22:03,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 216 [2025-03-15 02:22:03,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:22:04,233 INFO L124 PetriNetUnfolderBase]: 378/1559 cut-off events. [2025-03-15 02:22:04,233 INFO L125 PetriNetUnfolderBase]: For 14290/14490 co-relation queries the response was YES. [2025-03-15 02:22:04,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8635 conditions, 1559 events. 378/1559 cut-off events. For 14290/14490 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 11884 event pairs, 17 based on Foata normal form. 5/1337 useless extension candidates. Maximal degree in co-relation 7521. Up to 345 conditions per place. [2025-03-15 02:22:04,249 INFO L140 encePairwiseOnDemand]: 204/216 looper letters, 104 selfloop transitions, 21 changer transitions 40/325 dead transitions. [2025-03-15 02:22:04,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 325 transitions, 4095 flow [2025-03-15 02:22:04,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-15 02:22:04,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-15 02:22:04,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1379 transitions. [2025-03-15 02:22:04,253 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7980324074074074 [2025-03-15 02:22:04,254 INFO L298 CegarLoopForPetriNet]: 206 programPoint places, 54 predicate places. [2025-03-15 02:22:04,254 INFO L471 AbstractCegarLoop]: Abstraction has has 260 places, 325 transitions, 4095 flow [2025-03-15 02:22:04,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 167.375) internal successors, (1339), 8 states have internal predecessors, (1339), 0 states have call successors, (0), 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 02:22:04,255 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:22:04,255 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] [2025-03-15 02:22:04,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-15 02:22:04,255 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-15 02:22:04,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:22:04,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1795264090, now seen corresponding path program 1 times [2025-03-15 02:22:04,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:22:04,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114670581] [2025-03-15 02:22:04,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:22:04,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:22:04,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:22:04,348 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 02:22:04,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:22:04,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114670581] [2025-03-15 02:22:04,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114670581] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:22:04,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:22:04,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-15 02:22:04,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931902469] [2025-03-15 02:22:04,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:22:04,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-15 02:22:04,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:22:04,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-15 02:22:04,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-15 02:22:04,351 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 216 [2025-03-15 02:22:04,352 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 325 transitions, 4095 flow. Second operand has 8 states, 8 states have (on average 167.5) internal successors, (1340), 8 states have internal predecessors, (1340), 0 states have call successors, (0), 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 02:22:04,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:22:04,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 216 [2025-03-15 02:22:04,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:22:04,667 INFO L124 PetriNetUnfolderBase]: 406/1595 cut-off events. [2025-03-15 02:22:04,667 INFO L125 PetriNetUnfolderBase]: For 16808/16991 co-relation queries the response was YES. [2025-03-15 02:22:04,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9585 conditions, 1595 events. 406/1595 cut-off events. For 16808/16991 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 12177 event pairs, 17 based on Foata normal form. 8/1375 useless extension candidates. Maximal degree in co-relation 8359. Up to 346 conditions per place. [2025-03-15 02:22:04,685 INFO L140 encePairwiseOnDemand]: 204/216 looper letters, 122 selfloop transitions, 23 changer transitions 40/342 dead transitions. [2025-03-15 02:22:04,685 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 342 transitions, 4751 flow [2025-03-15 02:22:04,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-15 02:22:04,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-15 02:22:04,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1379 transitions. [2025-03-15 02:22:04,688 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7980324074074074 [2025-03-15 02:22:04,688 INFO L298 CegarLoopForPetriNet]: 206 programPoint places, 61 predicate places. [2025-03-15 02:22:04,688 INFO L471 AbstractCegarLoop]: Abstraction has has 267 places, 342 transitions, 4751 flow [2025-03-15 02:22:04,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 167.5) internal successors, (1340), 8 states have internal predecessors, (1340), 0 states have call successors, (0), 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 02:22:04,688 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:22:04,688 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] [2025-03-15 02:22:04,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-15 02:22:04,689 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-15 02:22:04,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:22:04,689 INFO L85 PathProgramCache]: Analyzing trace with hash 455616449, now seen corresponding path program 1 times [2025-03-15 02:22:04,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:22:04,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126199419] [2025-03-15 02:22:04,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:22:04,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:22:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:22:04,770 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 02:22:04,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:22:04,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126199419] [2025-03-15 02:22:04,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126199419] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:22:04,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:22:04,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 02:22:04,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805687352] [2025-03-15 02:22:04,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:22:04,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 02:22:04,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:22:04,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 02:22:04,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-15 02:22:04,772 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 216 [2025-03-15 02:22:04,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 342 transitions, 4751 flow. Second operand has 6 states, 6 states have (on average 170.16666666666666) internal successors, (1021), 6 states have internal predecessors, (1021), 0 states have call successors, (0), 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 02:22:04,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:22:04,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 216 [2025-03-15 02:22:04,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:22:05,033 INFO L124 PetriNetUnfolderBase]: 432/1613 cut-off events. [2025-03-15 02:22:05,034 INFO L125 PetriNetUnfolderBase]: For 23505/23687 co-relation queries the response was YES. [2025-03-15 02:22:05,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10660 conditions, 1613 events. 432/1613 cut-off events. For 23505/23687 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 12662 event pairs, 17 based on Foata normal form. 0/1394 useless extension candidates. Maximal degree in co-relation 8784. Up to 375 conditions per place. [2025-03-15 02:22:05,052 INFO L140 encePairwiseOnDemand]: 207/216 looper letters, 105 selfloop transitions, 10 changer transitions 43/361 dead transitions. [2025-03-15 02:22:05,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 361 transitions, 5293 flow [2025-03-15 02:22:05,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-15 02:22:05,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-15 02:22:05,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1222 transitions. [2025-03-15 02:22:05,055 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8082010582010583 [2025-03-15 02:22:05,055 INFO L298 CegarLoopForPetriNet]: 206 programPoint places, 66 predicate places. [2025-03-15 02:22:05,055 INFO L471 AbstractCegarLoop]: Abstraction has has 272 places, 361 transitions, 5293 flow [2025-03-15 02:22:05,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 170.16666666666666) internal successors, (1021), 6 states have internal predecessors, (1021), 0 states have call successors, (0), 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 02:22:05,055 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:22:05,056 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] [2025-03-15 02:22:05,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-15 02:22:05,056 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-15 02:22:05,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:22:05,056 INFO L85 PathProgramCache]: Analyzing trace with hash -133577366, now seen corresponding path program 1 times [2025-03-15 02:22:05,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:22:05,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439089566] [2025-03-15 02:22:05,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:22:05,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:22:05,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:22:05,125 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 02:22:05,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:22:05,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439089566] [2025-03-15 02:22:05,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439089566] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:22:05,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:22:05,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 02:22:05,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042232131] [2025-03-15 02:22:05,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:22:05,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 02:22:05,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:22:05,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 02:22:05,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-15 02:22:05,127 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 216 [2025-03-15 02:22:05,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 361 transitions, 5293 flow. Second operand has 6 states, 6 states have (on average 170.33333333333334) internal successors, (1022), 6 states have internal predecessors, (1022), 0 states have call successors, (0), 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 02:22:05,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:22:05,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 216 [2025-03-15 02:22:05,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:22:05,390 INFO L124 PetriNetUnfolderBase]: 428/1601 cut-off events. [2025-03-15 02:22:05,390 INFO L125 PetriNetUnfolderBase]: For 25058/25288 co-relation queries the response was YES. [2025-03-15 02:22:05,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11193 conditions, 1601 events. 428/1601 cut-off events. For 25058/25288 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 12456 event pairs, 17 based on Foata normal form. 0/1391 useless extension candidates. Maximal degree in co-relation 9209. Up to 454 conditions per place. [2025-03-15 02:22:05,403 INFO L140 encePairwiseOnDemand]: 207/216 looper letters, 0 selfloop transitions, 0 changer transitions 375/375 dead transitions. [2025-03-15 02:22:05,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 375 transitions, 5920 flow [2025-03-15 02:22:05,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-15 02:22:05,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-15 02:22:05,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1214 transitions. [2025-03-15 02:22:05,405 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8029100529100529 [2025-03-15 02:22:05,405 INFO L298 CegarLoopForPetriNet]: 206 programPoint places, 71 predicate places. [2025-03-15 02:22:05,406 INFO L471 AbstractCegarLoop]: Abstraction has has 277 places, 375 transitions, 5920 flow [2025-03-15 02:22:05,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 170.33333333333334) internal successors, (1022), 6 states have internal predecessors, (1022), 0 states have call successors, (0), 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 02:22:05,411 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/chl-exp-term-symm.wvr.c_petrified1_AllErrorsAtOnce [2025-03-15 02:22:05,450 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 26 remaining) [2025-03-15 02:22:05,450 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2025-03-15 02:22:05,450 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2025-03-15 02:22:05,450 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2025-03-15 02:22:05,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2025-03-15 02:22:05,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2025-03-15 02:22:05,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2025-03-15 02:22:05,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2025-03-15 02:22:05,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2025-03-15 02:22:05,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2025-03-15 02:22:05,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2025-03-15 02:22:05,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2025-03-15 02:22:05,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 26 remaining) [2025-03-15 02:22:05,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2025-03-15 02:22:05,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2025-03-15 02:22:05,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2025-03-15 02:22:05,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2025-03-15 02:22:05,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2025-03-15 02:22:05,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2025-03-15 02:22:05,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2025-03-15 02:22:05,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2025-03-15 02:22:05,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2025-03-15 02:22:05,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2025-03-15 02:22:05,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2025-03-15 02:22:05,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2025-03-15 02:22:05,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2025-03-15 02:22:05,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-15 02:22:05,452 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:22:05,456 INFO L328 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-15 02:22:05,456 INFO L188 ceAbstractionStarter]: Computing trace abstraction results [2025-03-15 02:22:05,460 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 02:22:05 BasicIcfg [2025-03-15 02:22:05,461 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-15 02:22:05,461 INFO L158 Benchmark]: Toolchain (without parser) took 7107.09ms. Allocated memory was 71.3MB in the beginning and 327.2MB in the end (delta: 255.9MB). Free memory was 43.8MB in the beginning and 146.6MB in the end (delta: -102.8MB). Peak memory consumption was 154.0MB. Max. memory is 8.0GB. [2025-03-15 02:22:05,461 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 71.3MB. Free memory was 34.4MB in the beginning and 34.3MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 02:22:05,461 INFO L158 Benchmark]: CACSL2BoogieTranslator took 192.25ms. Allocated memory is still 71.3MB. Free memory was 43.7MB in the beginning and 32.2MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-03-15 02:22:05,462 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.16ms. Allocated memory is still 71.3MB. Free memory was 32.2MB in the beginning and 30.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 02:22:05,463 INFO L158 Benchmark]: Boogie Preprocessor took 31.00ms. Allocated memory is still 71.3MB. Free memory was 30.4MB in the beginning and 29.3MB in the end (delta: 1.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-03-15 02:22:05,463 INFO L158 Benchmark]: RCFGBuilder took 377.78ms. Allocated memory is still 71.3MB. Free memory was 29.3MB in the beginning and 37.7MB in the end (delta: -8.4MB). Peak memory consumption was 15.1MB. Max. memory is 8.0GB. [2025-03-15 02:22:05,463 INFO L158 Benchmark]: TraceAbstraction took 6463.09ms. Allocated memory was 71.3MB in the beginning and 327.2MB in the end (delta: 255.9MB). Free memory was 36.8MB in the beginning and 146.6MB in the end (delta: -109.9MB). Peak memory consumption was 147.2MB. Max. memory is 8.0GB. [2025-03-15 02:22:05,464 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 71.3MB. Free memory was 34.4MB in the beginning and 34.3MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 192.25ms. Allocated memory is still 71.3MB. Free memory was 43.7MB in the beginning and 32.2MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.16ms. Allocated memory is still 71.3MB. Free memory was 32.2MB in the beginning and 30.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 31.00ms. Allocated memory is still 71.3MB. Free memory was 30.4MB in the beginning and 29.3MB in the end (delta: 1.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 377.78ms. Allocated memory is still 71.3MB. Free memory was 29.3MB in the beginning and 37.7MB in the end (delta: -8.4MB). Peak memory consumption was 15.1MB. Max. memory is 8.0GB. * TraceAbstraction took 6463.09ms. Allocated memory was 71.3MB in the beginning and 327.2MB in the end (delta: 255.9MB). Free memory was 36.8MB in the beginning and 146.6MB in the end (delta: -109.9MB). Peak memory consumption was 147.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 326 locations, 26 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.3s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 913 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 913 mSDsluCounter, 646 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 330 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1764 IncrementalHoareTripleChecker+Invalid, 1814 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 316 mSDtfsCounter, 1764 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5920occurred in iteration=18, InterpolantAutomatonStates: 110, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 1128 NumberOfCodeBlocks, 1128 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1110 ConstructedInterpolants, 0 QuantifiedInterpolants, 2550 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-15 02:22:05,484 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...