/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/test-easy6.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.empire2-owicki-f61efc6-m [2025-03-15 03:10:04,223 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-15 03:10:04,308 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 03:10:04,337 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-15 03:10:04,339 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-15 03:10:04,339 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-15 03:10:04,339 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-15 03:10:04,340 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-15 03:10:04,340 INFO L153 SettingsManager]: * Use SBE=true [2025-03-15 03:10:04,340 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-15 03:10:04,340 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-15 03:10:04,340 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-15 03:10:04,340 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-15 03:10:04,340 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-15 03:10:04,340 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-15 03:10:04,340 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-15 03:10:04,340 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-15 03:10:04,340 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-15 03:10:04,340 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-15 03:10:04,340 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-15 03:10:04,340 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-15 03:10:04,341 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-15 03:10:04,341 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-15 03:10:04,341 INFO L153 SettingsManager]: * To the following directory=./dump/ [2025-03-15 03:10:04,341 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-15 03:10:04,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 03:10:04,341 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-15 03:10:04,341 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-15 03:10:04,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-15 03:10:04,341 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-15 03:10:04,341 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-15 03:10:04,341 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-15 03:10:04,341 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 03:10:04,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-15 03:10:04,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-15 03:10:04,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-15 03:10:04,656 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-15 03:10:04,656 INFO L274 PluginConnector]: CDTParser initialized [2025-03-15 03:10:04,659 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-easy6.wvr.c [2025-03-15 03:10:06,003 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/949f953b3/9050532912b048ef93b6bde415d5a5be/FLAGbd6764235 [2025-03-15 03:10:06,198 INFO L384 CDTParser]: Found 1 translation units. [2025-03-15 03:10:06,200 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy6.wvr.c [2025-03-15 03:10:06,206 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/949f953b3/9050532912b048ef93b6bde415d5a5be/FLAGbd6764235 [2025-03-15 03:10:06,221 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/949f953b3/9050532912b048ef93b6bde415d5a5be [2025-03-15 03:10:06,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-15 03:10:06,225 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-03-15 03:10:06,226 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-15 03:10:06,226 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-15 03:10:06,229 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-15 03:10:06,229 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 03:10:06" (1/1) ... [2025-03-15 03:10:06,230 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c617e41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:06, skipping insertion in model container [2025-03-15 03:10:06,230 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 03:10:06" (1/1) ... [2025-03-15 03:10:06,244 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-15 03:10:06,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 03:10:06,395 INFO L200 MainTranslator]: Completed pre-run [2025-03-15 03:10:06,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 03:10:06,431 INFO L204 MainTranslator]: Completed translation [2025-03-15 03:10:06,432 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:06 WrapperNode [2025-03-15 03:10:06,432 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-15 03:10:06,433 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-15 03:10:06,433 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-15 03:10:06,433 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-15 03:10:06,437 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:06" (1/1) ... [2025-03-15 03:10:06,444 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:06" (1/1) ... [2025-03-15 03:10:06,457 INFO L138 Inliner]: procedures = 18, calls = 14, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 102 [2025-03-15 03:10:06,458 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-15 03:10:06,458 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-15 03:10:06,458 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-15 03:10:06,458 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-15 03:10:06,464 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:06" (1/1) ... [2025-03-15 03:10:06,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:06" (1/1) ... [2025-03-15 03:10:06,470 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:06" (1/1) ... [2025-03-15 03:10:06,470 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:06" (1/1) ... [2025-03-15 03:10:06,473 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:06" (1/1) ... [2025-03-15 03:10:06,474 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:06" (1/1) ... [2025-03-15 03:10:06,479 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:06" (1/1) ... [2025-03-15 03:10:06,480 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:06" (1/1) ... [2025-03-15 03:10:06,481 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:06" (1/1) ... [2025-03-15 03:10:06,482 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-15 03:10:06,486 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-15 03:10:06,487 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-15 03:10:06,487 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-15 03:10:06,488 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:06" (1/1) ... [2025-03-15 03:10:06,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 03:10:06,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 03:10:06,517 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 03:10:06,522 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 03:10:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-15 03:10:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-15 03:10:06,542 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-15 03:10:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-15 03:10:06,542 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-15 03:10:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-15 03:10:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-15 03:10:06,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-15 03:10:06,544 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 03:10:06,616 INFO L234 CfgBuilder]: Building ICFG [2025-03-15 03:10:06,618 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-15 03:10:06,807 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-15 03:10:06,808 INFO L283 CfgBuilder]: Performing block encoding [2025-03-15 03:10:06,825 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-15 03:10:06,826 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-15 03:10:06,826 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 03:10:06 BoogieIcfgContainer [2025-03-15 03:10:06,826 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-15 03:10:06,829 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-15 03:10:06,829 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-15 03:10:06,833 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-15 03:10:06,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 03:10:06" (1/3) ... [2025-03-15 03:10:06,834 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2052a938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 03:10:06, skipping insertion in model container [2025-03-15 03:10:06,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:10:06" (2/3) ... [2025-03-15 03:10:06,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2052a938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 03:10:06, skipping insertion in model container [2025-03-15 03:10:06,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 03:10:06" (3/3) ... [2025-03-15 03:10:06,836 INFO L128 eAbstractionObserver]: Analyzing ICFG test-easy6.wvr.c [2025-03-15 03:10:06,850 INFO L303 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-15 03:10:06,852 INFO L169 ceAbstractionStarter]: Applying trace abstraction to ICFG test-easy6.wvr.c that has 3 procedures, 117 locations, 1 initial locations, 0 loop locations, and 8 error locations. [2025-03-15 03:10:06,852 INFO L581 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-15 03:10:06,924 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-15 03:10:06,960 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-15 03:10:06,969 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;@5e9bd2ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-15 03:10:06,969 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2025-03-15 03:10:07,000 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-15 03:10:07,001 INFO L124 PetriNetUnfolderBase]: 0/29 cut-off events. [2025-03-15 03:10:07,003 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-15 03:10:07,003 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:10:07,004 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] [2025-03-15 03:10:07,004 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:10:07,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:10:07,010 INFO L85 PathProgramCache]: Analyzing trace with hash 500683256, now seen corresponding path program 1 times [2025-03-15 03:10:07,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:10:07,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640373580] [2025-03-15 03:10:07,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:10:07,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:10:07,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:10:07,268 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 03:10:07,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:10:07,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640373580] [2025-03-15 03:10:07,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640373580] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:10:07,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:10:07,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 03:10:07,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471307518] [2025-03-15 03:10:07,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:10:07,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 03:10:07,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:10:07,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 03:10:07,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 03:10:07,301 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 121 [2025-03-15 03:10:07,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 121 transitions, 256 flow. Second operand has 4 states, 4 states have (on average 100.25) internal successors, (401), 4 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:10:07,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:10:07,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 121 [2025-03-15 03:10:07,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:10:07,575 INFO L124 PetriNetUnfolderBase]: 36/435 cut-off events. [2025-03-15 03:10:07,576 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2025-03-15 03:10:07,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 560 conditions, 435 events. 36/435 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2192 event pairs, 11 based on Foata normal form. 46/408 useless extension candidates. Maximal degree in co-relation 452. Up to 33 conditions per place. [2025-03-15 03:10:07,588 INFO L140 encePairwiseOnDemand]: 108/121 looper letters, 28 selfloop transitions, 6 changer transitions 11/128 dead transitions. [2025-03-15 03:10:07,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 128 transitions, 354 flow [2025-03-15 03:10:07,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-15 03:10:07,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-15 03:10:07,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 552 transitions. [2025-03-15 03:10:07,603 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.912396694214876 [2025-03-15 03:10:07,606 INFO L298 CegarLoopForPetriNet]: 123 programPoint places, -5 predicate places. [2025-03-15 03:10:07,607 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 128 transitions, 354 flow [2025-03-15 03:10:07,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 100.25) internal successors, (401), 4 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:10:07,607 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:10:07,607 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] [2025-03-15 03:10:07,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-15 03:10:07,607 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:10:07,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:10:07,609 INFO L85 PathProgramCache]: Analyzing trace with hash -449520846, now seen corresponding path program 1 times [2025-03-15 03:10:07,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:10:07,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498139446] [2025-03-15 03:10:07,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:10:07,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:10:07,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:10:07,713 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 03:10:07,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:10:07,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498139446] [2025-03-15 03:10:07,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498139446] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:10:07,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:10:07,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 03:10:07,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130086141] [2025-03-15 03:10:07,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:10:07,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 03:10:07,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:10:07,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 03:10:07,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 03:10:07,719 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 121 [2025-03-15 03:10:07,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 128 transitions, 354 flow. Second operand has 4 states, 4 states have (on average 100.5) internal successors, (402), 4 states have internal predecessors, (402), 0 states have call successors, (0), 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 03:10:07,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:10:07,720 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 121 [2025-03-15 03:10:07,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:10:07,928 INFO L124 PetriNetUnfolderBase]: 84/768 cut-off events. [2025-03-15 03:10:07,928 INFO L125 PetriNetUnfolderBase]: For 165/178 co-relation queries the response was YES. [2025-03-15 03:10:07,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1108 conditions, 768 events. 84/768 cut-off events. For 165/178 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 5105 event pairs, 21 based on Foata normal form. 2/638 useless extension candidates. Maximal degree in co-relation 954. Up to 58 conditions per place. [2025-03-15 03:10:07,935 INFO L140 encePairwiseOnDemand]: 114/121 looper letters, 31 selfloop transitions, 9 changer transitions 12/149 dead transitions. [2025-03-15 03:10:07,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 149 transitions, 510 flow [2025-03-15 03:10:07,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-15 03:10:07,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-15 03:10:07,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 535 transitions. [2025-03-15 03:10:07,937 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8842975206611571 [2025-03-15 03:10:07,938 INFO L298 CegarLoopForPetriNet]: 123 programPoint places, -1 predicate places. [2025-03-15 03:10:07,938 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 149 transitions, 510 flow [2025-03-15 03:10:07,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 100.5) internal successors, (402), 4 states have internal predecessors, (402), 0 states have call successors, (0), 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 03:10:07,938 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:10:07,938 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] [2025-03-15 03:10:07,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-15 03:10:07,939 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:10:07,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:10:07,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1628933290, now seen corresponding path program 1 times [2025-03-15 03:10:07,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:10:07,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783233737] [2025-03-15 03:10:07,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:10:07,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:10:07,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:10:08,060 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 03:10:08,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:10:08,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783233737] [2025-03-15 03:10:08,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783233737] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:10:08,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:10:08,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:10:08,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444758482] [2025-03-15 03:10:08,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:10:08,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 03:10:08,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:10:08,062 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 03:10:08,062 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-15 03:10:08,063 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 121 [2025-03-15 03:10:08,065 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 149 transitions, 510 flow. Second operand has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 0 states have call successors, (0), 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 03:10:08,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:10:08,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 121 [2025-03-15 03:10:08,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:10:08,356 INFO L124 PetriNetUnfolderBase]: 116/830 cut-off events. [2025-03-15 03:10:08,357 INFO L125 PetriNetUnfolderBase]: For 351/444 co-relation queries the response was YES. [2025-03-15 03:10:08,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1502 conditions, 830 events. 116/830 cut-off events. For 351/444 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 5514 event pairs, 30 based on Foata normal form. 11/717 useless extension candidates. Maximal degree in co-relation 1324. Up to 71 conditions per place. [2025-03-15 03:10:08,363 INFO L140 encePairwiseOnDemand]: 112/121 looper letters, 60 selfloop transitions, 18 changer transitions 14/165 dead transitions. [2025-03-15 03:10:08,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 165 transitions, 742 flow [2025-03-15 03:10:08,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-15 03:10:08,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-15 03:10:08,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1064 transitions. [2025-03-15 03:10:08,367 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7993989481592787 [2025-03-15 03:10:08,368 INFO L298 CegarLoopForPetriNet]: 123 programPoint places, 8 predicate places. [2025-03-15 03:10:08,368 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 165 transitions, 742 flow [2025-03-15 03:10:08,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 0 states have call successors, (0), 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 03:10:08,369 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:10:08,369 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] [2025-03-15 03:10:08,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-15 03:10:08,369 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:10:08,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:10:08,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1052613770, now seen corresponding path program 1 times [2025-03-15 03:10:08,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:10:08,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167696890] [2025-03-15 03:10:08,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:10:08,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:10:08,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:10:08,484 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 03:10:08,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:10:08,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167696890] [2025-03-15 03:10:08,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167696890] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:10:08,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:10:08,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:10:08,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690854639] [2025-03-15 03:10:08,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:10:08,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 03:10:08,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:10:08,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 03:10:08,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-15 03:10:08,487 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 121 [2025-03-15 03:10:08,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 165 transitions, 742 flow. Second operand has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 0 states have call successors, (0), 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 03:10:08,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:10:08,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 121 [2025-03-15 03:10:08,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:10:08,743 INFO L124 PetriNetUnfolderBase]: 113/813 cut-off events. [2025-03-15 03:10:08,744 INFO L125 PetriNetUnfolderBase]: For 590/818 co-relation queries the response was YES. [2025-03-15 03:10:08,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1748 conditions, 813 events. 113/813 cut-off events. For 590/818 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 5389 event pairs, 24 based on Foata normal form. 19/719 useless extension candidates. Maximal degree in co-relation 1546. Up to 71 conditions per place. [2025-03-15 03:10:08,750 INFO L140 encePairwiseOnDemand]: 112/121 looper letters, 59 selfloop transitions, 19 changer transitions 14/165 dead transitions. [2025-03-15 03:10:08,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 165 transitions, 910 flow [2025-03-15 03:10:08,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-15 03:10:08,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-15 03:10:08,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1061 transitions. [2025-03-15 03:10:08,754 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.797145003756574 [2025-03-15 03:10:08,755 INFO L298 CegarLoopForPetriNet]: 123 programPoint places, 17 predicate places. [2025-03-15 03:10:08,755 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 165 transitions, 910 flow [2025-03-15 03:10:08,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 0 states have call successors, (0), 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 03:10:08,756 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:10:08,756 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] [2025-03-15 03:10:08,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-15 03:10:08,756 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:10:08,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:10:08,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1218394890, now seen corresponding path program 1 times [2025-03-15 03:10:08,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:10:08,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122681334] [2025-03-15 03:10:08,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:10:08,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:10:08,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:10:08,849 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 03:10:08,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:10:08,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122681334] [2025-03-15 03:10:08,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122681334] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:10:08,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:10:08,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:10:08,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140504556] [2025-03-15 03:10:08,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:10:08,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 03:10:08,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:10:08,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 03:10:08,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-15 03:10:08,852 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 121 [2025-03-15 03:10:08,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 165 transitions, 910 flow. Second operand has 6 states, 6 states have (on average 91.16666666666667) internal successors, (547), 6 states have internal predecessors, (547), 0 states have call successors, (0), 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 03:10:08,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:10:08,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 121 [2025-03-15 03:10:08,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:10:09,039 INFO L124 PetriNetUnfolderBase]: 109/872 cut-off events. [2025-03-15 03:10:09,039 INFO L125 PetriNetUnfolderBase]: For 905/1139 co-relation queries the response was YES. [2025-03-15 03:10:09,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2046 conditions, 872 events. 109/872 cut-off events. For 905/1139 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 5903 event pairs, 34 based on Foata normal form. 18/767 useless extension candidates. Maximal degree in co-relation 1820. Up to 126 conditions per place. [2025-03-15 03:10:09,044 INFO L140 encePairwiseOnDemand]: 111/121 looper letters, 59 selfloop transitions, 17 changer transitions 14/163 dead transitions. [2025-03-15 03:10:09,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 163 transitions, 1058 flow [2025-03-15 03:10:09,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-15 03:10:09,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-15 03:10:09,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1033 transitions. [2025-03-15 03:10:09,047 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7761081893313299 [2025-03-15 03:10:09,047 INFO L298 CegarLoopForPetriNet]: 123 programPoint places, 26 predicate places. [2025-03-15 03:10:09,047 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 163 transitions, 1058 flow [2025-03-15 03:10:09,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 91.16666666666667) internal successors, (547), 6 states have internal predecessors, (547), 0 states have call successors, (0), 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 03:10:09,048 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:10:09,048 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] [2025-03-15 03:10:09,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-15 03:10:09,048 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:10:09,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:10:09,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1728711795, now seen corresponding path program 1 times [2025-03-15 03:10:09,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:10:09,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846104658] [2025-03-15 03:10:09,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:10:09,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:10:09,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:10:09,142 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 03:10:09,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:10:09,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846104658] [2025-03-15 03:10:09,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846104658] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:10:09,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:10:09,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:10:09,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099760332] [2025-03-15 03:10:09,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:10:09,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 03:10:09,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:10:09,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 03:10:09,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-15 03:10:09,145 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 121 [2025-03-15 03:10:09,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 163 transitions, 1058 flow. Second operand has 6 states, 6 states have (on average 91.16666666666667) internal successors, (547), 6 states have internal predecessors, (547), 0 states have call successors, (0), 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 03:10:09,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:10:09,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 121 [2025-03-15 03:10:09,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:10:09,362 INFO L124 PetriNetUnfolderBase]: 106/851 cut-off events. [2025-03-15 03:10:09,362 INFO L125 PetriNetUnfolderBase]: For 1275/1541 co-relation queries the response was YES. [2025-03-15 03:10:09,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2258 conditions, 851 events. 106/851 cut-off events. For 1275/1541 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 5706 event pairs, 32 based on Foata normal form. 17/753 useless extension candidates. Maximal degree in co-relation 2008. Up to 126 conditions per place. [2025-03-15 03:10:09,370 INFO L140 encePairwiseOnDemand]: 111/121 looper letters, 57 selfloop transitions, 17 changer transitions 14/161 dead transitions. [2025-03-15 03:10:09,370 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 161 transitions, 1198 flow [2025-03-15 03:10:09,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-15 03:10:09,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-15 03:10:09,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 942 transitions. [2025-03-15 03:10:09,373 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7785123966942149 [2025-03-15 03:10:09,376 INFO L298 CegarLoopForPetriNet]: 123 programPoint places, 34 predicate places. [2025-03-15 03:10:09,376 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 161 transitions, 1198 flow [2025-03-15 03:10:09,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 91.16666666666667) internal successors, (547), 6 states have internal predecessors, (547), 0 states have call successors, (0), 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 03:10:09,377 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:10:09,377 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] [2025-03-15 03:10:09,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-15 03:10:09,377 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:10:09,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:10:09,378 INFO L85 PathProgramCache]: Analyzing trace with hash -73828796, now seen corresponding path program 1 times [2025-03-15 03:10:09,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:10:09,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736492195] [2025-03-15 03:10:09,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:10:09,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:10:09,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:10:09,445 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 03:10:09,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:10:09,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736492195] [2025-03-15 03:10:09,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736492195] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:10:09,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:10:09,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 03:10:09,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011918997] [2025-03-15 03:10:09,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:10:09,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 03:10:09,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:10:09,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 03:10:09,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 03:10:09,447 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 121 [2025-03-15 03:10:09,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 161 transitions, 1198 flow. Second operand has 4 states, 4 states have (on average 101.25) internal successors, (405), 4 states have internal predecessors, (405), 0 states have call successors, (0), 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 03:10:09,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:10:09,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 121 [2025-03-15 03:10:09,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:10:09,586 INFO L124 PetriNetUnfolderBase]: 145/984 cut-off events. [2025-03-15 03:10:09,587 INFO L125 PetriNetUnfolderBase]: For 2308/2531 co-relation queries the response was YES. [2025-03-15 03:10:09,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2855 conditions, 984 events. 145/984 cut-off events. For 2308/2531 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 6764 event pairs, 39 based on Foata normal form. 0/870 useless extension candidates. Maximal degree in co-relation 2491. Up to 148 conditions per place. [2025-03-15 03:10:09,593 INFO L140 encePairwiseOnDemand]: 114/121 looper letters, 24 selfloop transitions, 5 changer transitions 24/182 dead transitions. [2025-03-15 03:10:09,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 182 transitions, 1493 flow [2025-03-15 03:10:09,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-15 03:10:09,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-15 03:10:09,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 532 transitions. [2025-03-15 03:10:09,595 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8793388429752066 [2025-03-15 03:10:09,596 INFO L298 CegarLoopForPetriNet]: 123 programPoint places, 38 predicate places. [2025-03-15 03:10:09,596 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 182 transitions, 1493 flow [2025-03-15 03:10:09,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 101.25) internal successors, (405), 4 states have internal predecessors, (405), 0 states have call successors, (0), 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 03:10:09,596 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:10:09,596 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] [2025-03-15 03:10:09,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-15 03:10:09,597 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:10:09,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:10:09,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1627860062, now seen corresponding path program 1 times [2025-03-15 03:10:09,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:10:09,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22283539] [2025-03-15 03:10:09,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:10:09,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:10:09,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:10:09,681 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 03:10:09,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:10:09,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22283539] [2025-03-15 03:10:09,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22283539] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:10:09,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:10:09,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 03:10:09,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920996239] [2025-03-15 03:10:09,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:10:09,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 03:10:09,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:10:09,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 03:10:09,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 03:10:09,683 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 121 [2025-03-15 03:10:09,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 182 transitions, 1493 flow. Second operand has 4 states, 4 states have (on average 101.5) internal successors, (406), 4 states have internal predecessors, (406), 0 states have call successors, (0), 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 03:10:09,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:10:09,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 121 [2025-03-15 03:10:09,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:10:09,838 INFO L124 PetriNetUnfolderBase]: 179/1114 cut-off events. [2025-03-15 03:10:09,838 INFO L125 PetriNetUnfolderBase]: For 4108/4376 co-relation queries the response was YES. [2025-03-15 03:10:09,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3613 conditions, 1114 events. 179/1114 cut-off events. For 4108/4376 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 7983 event pairs, 44 based on Foata normal form. 4/1007 useless extension candidates. Maximal degree in co-relation 3159. Up to 176 conditions per place. [2025-03-15 03:10:09,843 INFO L140 encePairwiseOnDemand]: 114/121 looper letters, 24 selfloop transitions, 5 changer transitions 37/197 dead transitions. [2025-03-15 03:10:09,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 197 transitions, 1790 flow [2025-03-15 03:10:09,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-15 03:10:09,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-15 03:10:09,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 532 transitions. [2025-03-15 03:10:09,844 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8793388429752066 [2025-03-15 03:10:09,846 INFO L298 CegarLoopForPetriNet]: 123 programPoint places, 42 predicate places. [2025-03-15 03:10:09,846 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 197 transitions, 1790 flow [2025-03-15 03:10:09,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 101.5) internal successors, (406), 4 states have internal predecessors, (406), 0 states have call successors, (0), 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 03:10:09,846 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:10:09,846 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:10:09,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-15 03:10:09,847 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:10:09,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:10:09,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1519833458, now seen corresponding path program 1 times [2025-03-15 03:10:09,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:10:09,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099876393] [2025-03-15 03:10:09,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:10:09,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:10:09,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:10:09,938 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 03:10:09,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:10:09,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099876393] [2025-03-15 03:10:09,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099876393] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:10:09,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:10:09,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:10:09,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397519613] [2025-03-15 03:10:09,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:10:09,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 03:10:09,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:10:09,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 03:10:09,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-15 03:10:09,941 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 121 [2025-03-15 03:10:09,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 197 transitions, 1790 flow. Second operand has 6 states, 6 states have (on average 96.83333333333333) internal successors, (581), 6 states have internal predecessors, (581), 0 states have call successors, (0), 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 03:10:09,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:10:09,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 121 [2025-03-15 03:10:09,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:10:10,138 INFO L124 PetriNetUnfolderBase]: 191/1188 cut-off events. [2025-03-15 03:10:10,139 INFO L125 PetriNetUnfolderBase]: For 5114/5417 co-relation queries the response was YES. [2025-03-15 03:10:10,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4168 conditions, 1188 events. 191/1188 cut-off events. For 5114/5417 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 8648 event pairs, 53 based on Foata normal form. 4/1098 useless extension candidates. Maximal degree in co-relation 3609. Up to 188 conditions per place. [2025-03-15 03:10:10,145 INFO L140 encePairwiseOnDemand]: 114/121 looper letters, 29 selfloop transitions, 6 changer transitions 47/206 dead transitions. [2025-03-15 03:10:10,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 206 transitions, 2127 flow [2025-03-15 03:10:10,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-15 03:10:10,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-15 03:10:10,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 709 transitions. [2025-03-15 03:10:10,147 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8370720188902007 [2025-03-15 03:10:10,147 INFO L298 CegarLoopForPetriNet]: 123 programPoint places, 47 predicate places. [2025-03-15 03:10:10,147 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 206 transitions, 2127 flow [2025-03-15 03:10:10,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 96.83333333333333) internal successors, (581), 6 states have internal predecessors, (581), 0 states have call successors, (0), 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 03:10:10,148 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:10:10,148 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:10:10,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-15 03:10:10,148 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:10:10,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:10:10,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1794844280, now seen corresponding path program 1 times [2025-03-15 03:10:10,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:10:10,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5226111] [2025-03-15 03:10:10,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:10:10,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:10:10,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:10:10,260 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 03:10:10,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:10:10,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5226111] [2025-03-15 03:10:10,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5226111] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:10:10,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:10:10,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:10:10,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385673330] [2025-03-15 03:10:10,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:10:10,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 03:10:10,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:10:10,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 03:10:10,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-15 03:10:10,262 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 121 [2025-03-15 03:10:10,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 206 transitions, 2127 flow. Second operand has 6 states, 6 states have (on average 96.83333333333333) internal successors, (581), 6 states have internal predecessors, (581), 0 states have call successors, (0), 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 03:10:10,263 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:10:10,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 121 [2025-03-15 03:10:10,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:10:10,457 INFO L124 PetriNetUnfolderBase]: 191/1182 cut-off events. [2025-03-15 03:10:10,457 INFO L125 PetriNetUnfolderBase]: For 5826/6165 co-relation queries the response was YES. [2025-03-15 03:10:10,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4495 conditions, 1182 events. 191/1182 cut-off events. For 5826/6165 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 8559 event pairs, 53 based on Foata normal form. 10/1102 useless extension candidates. Maximal degree in co-relation 3891. Up to 188 conditions per place. [2025-03-15 03:10:10,465 INFO L140 encePairwiseOnDemand]: 114/121 looper letters, 28 selfloop transitions, 6 changer transitions 47/205 dead transitions. [2025-03-15 03:10:10,465 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 205 transitions, 2265 flow [2025-03-15 03:10:10,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-15 03:10:10,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-15 03:10:10,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 708 transitions. [2025-03-15 03:10:10,467 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8358913813459268 [2025-03-15 03:10:10,468 INFO L298 CegarLoopForPetriNet]: 123 programPoint places, 52 predicate places. [2025-03-15 03:10:10,468 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 205 transitions, 2265 flow [2025-03-15 03:10:10,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 96.83333333333333) internal successors, (581), 6 states have internal predecessors, (581), 0 states have call successors, (0), 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 03:10:10,468 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:10:10,468 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:10:10,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-15 03:10:10,468 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:10:10,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:10:10,470 INFO L85 PathProgramCache]: Analyzing trace with hash 176922342, now seen corresponding path program 1 times [2025-03-15 03:10:10,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:10:10,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219079285] [2025-03-15 03:10:10,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:10:10,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:10:10,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:10:10,576 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 03:10:10,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:10:10,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219079285] [2025-03-15 03:10:10,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219079285] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:10:10,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:10:10,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:10:10,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770946753] [2025-03-15 03:10:10,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:10:10,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 03:10:10,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:10:10,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 03:10:10,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-15 03:10:10,578 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 121 [2025-03-15 03:10:10,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 205 transitions, 2265 flow. Second operand has 6 states, 6 states have (on average 97.0) internal successors, (582), 6 states have internal predecessors, (582), 0 states have call successors, (0), 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 03:10:10,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:10:10,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 121 [2025-03-15 03:10:10,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:10:10,753 INFO L124 PetriNetUnfolderBase]: 188/1173 cut-off events. [2025-03-15 03:10:10,753 INFO L125 PetriNetUnfolderBase]: For 6624/6988 co-relation queries the response was YES. [2025-03-15 03:10:10,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4759 conditions, 1173 events. 188/1173 cut-off events. For 6624/6988 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 8471 event pairs, 53 based on Foata normal form. 10/1101 useless extension candidates. Maximal degree in co-relation 4110. Up to 186 conditions per place. [2025-03-15 03:10:10,759 INFO L140 encePairwiseOnDemand]: 114/121 looper letters, 13 selfloop transitions, 6 changer transitions 76/207 dead transitions. [2025-03-15 03:10:10,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 207 transitions, 2480 flow [2025-03-15 03:10:10,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-15 03:10:10,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-15 03:10:10,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 796 transitions. [2025-03-15 03:10:10,762 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8223140495867769 [2025-03-15 03:10:10,762 INFO L298 CegarLoopForPetriNet]: 123 programPoint places, 58 predicate places. [2025-03-15 03:10:10,762 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 207 transitions, 2480 flow [2025-03-15 03:10:10,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 97.0) internal successors, (582), 6 states have internal predecessors, (582), 0 states have call successors, (0), 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 03:10:10,763 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:10:10,763 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:10:10,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-15 03:10:10,763 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:10:10,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:10:10,763 INFO L85 PathProgramCache]: Analyzing trace with hash -194401847, now seen corresponding path program 1 times [2025-03-15 03:10:10,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:10:10,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909429958] [2025-03-15 03:10:10,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:10:10,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:10:10,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:10:10,848 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 03:10:10,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:10:10,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909429958] [2025-03-15 03:10:10,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909429958] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:10:10,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:10:10,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:10:10,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731491634] [2025-03-15 03:10:10,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:10:10,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 03:10:10,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:10:10,849 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 03:10:10,849 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-15 03:10:10,850 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 121 [2025-03-15 03:10:10,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 207 transitions, 2480 flow. Second operand has 6 states, 6 states have (on average 97.0) internal successors, (582), 6 states have internal predecessors, (582), 0 states have call successors, (0), 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 03:10:10,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:10:10,851 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 121 [2025-03-15 03:10:10,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:10:11,032 INFO L124 PetriNetUnfolderBase]: 188/1169 cut-off events. [2025-03-15 03:10:11,032 INFO L125 PetriNetUnfolderBase]: For 7585/7975 co-relation queries the response was YES. [2025-03-15 03:10:11,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5065 conditions, 1169 events. 188/1169 cut-off events. For 7585/7975 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 8405 event pairs, 53 based on Foata normal form. 10/1101 useless extension candidates. Maximal degree in co-relation 4371. Up to 186 conditions per place. [2025-03-15 03:10:11,039 INFO L140 encePairwiseOnDemand]: 114/121 looper letters, 0 selfloop transitions, 0 changer transitions 206/206 dead transitions. [2025-03-15 03:10:11,040 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 206 transitions, 2616 flow [2025-03-15 03:10:11,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-15 03:10:11,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-15 03:10:11,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 795 transitions. [2025-03-15 03:10:11,042 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8212809917355371 [2025-03-15 03:10:11,043 INFO L298 CegarLoopForPetriNet]: 123 programPoint places, 64 predicate places. [2025-03-15 03:10:11,043 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 206 transitions, 2616 flow [2025-03-15 03:10:11,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 97.0) internal successors, (582), 6 states have internal predecessors, (582), 0 states have call successors, (0), 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 03:10:11,049 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/test-easy6.wvr.c_petrified1_AllErrorsAtOnce [2025-03-15 03:10:11,080 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2025-03-15 03:10:11,080 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2025-03-15 03:10:11,080 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2025-03-15 03:10:11,080 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2025-03-15 03:10:11,080 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2025-03-15 03:10:11,081 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2025-03-15 03:10:11,081 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2025-03-15 03:10:11,081 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2025-03-15 03:10:11,081 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 18 remaining) [2025-03-15 03:10:11,081 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2025-03-15 03:10:11,081 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2025-03-15 03:10:11,081 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2025-03-15 03:10:11,081 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2025-03-15 03:10:11,081 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2025-03-15 03:10:11,081 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2025-03-15 03:10:11,081 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2025-03-15 03:10:11,081 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2025-03-15 03:10:11,081 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2025-03-15 03:10:11,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-15 03:10:11,082 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:10:11,088 INFO L328 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-15 03:10:11,088 INFO L188 ceAbstractionStarter]: Computing trace abstraction results [2025-03-15 03:10:11,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 03:10:11 BasicIcfg [2025-03-15 03:10:11,094 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-15 03:10:11,095 INFO L158 Benchmark]: Toolchain (without parser) took 4870.41ms. Allocated memory was 71.3MB in the beginning and 138.4MB in the end (delta: 67.1MB). Free memory was 45.3MB in the beginning and 41.9MB in the end (delta: 3.4MB). Peak memory consumption was 69.5MB. Max. memory is 8.0GB. [2025-03-15 03:10:11,095 INFO L158 Benchmark]: CDTParser took 1.45ms. Allocated memory is still 71.3MB. Free memory is still 32.9MB. There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 03:10:11,095 INFO L158 Benchmark]: CACSL2BoogieTranslator took 206.87ms. Allocated memory is still 71.3MB. Free memory was 45.2MB in the beginning and 34.0MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-03-15 03:10:11,095 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.67ms. Allocated memory is still 71.3MB. Free memory was 34.0MB in the beginning and 32.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 03:10:11,095 INFO L158 Benchmark]: Boogie Preprocessor took 23.82ms. Allocated memory is still 71.3MB. Free memory was 32.5MB in the beginning and 31.6MB in the end (delta: 920.6kB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-03-15 03:10:11,095 INFO L158 Benchmark]: RCFGBuilder took 339.87ms. Allocated memory is still 71.3MB. Free memory was 31.6MB in the beginning and 45.7MB in the end (delta: -14.1MB). Peak memory consumption was 15.2MB. Max. memory is 8.0GB. [2025-03-15 03:10:11,096 INFO L158 Benchmark]: TraceAbstraction took 4265.35ms. Allocated memory was 71.3MB in the beginning and 138.4MB in the end (delta: 67.1MB). Free memory was 44.4MB in the beginning and 41.9MB in the end (delta: 2.5MB). Peak memory consumption was 66.9MB. Max. memory is 8.0GB. [2025-03-15 03:10:11,097 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.45ms. Allocated memory is still 71.3MB. Free memory is still 32.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 206.87ms. Allocated memory is still 71.3MB. Free memory was 45.2MB in the beginning and 34.0MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.67ms. Allocated memory is still 71.3MB. Free memory was 34.0MB in the beginning and 32.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 23.82ms. Allocated memory is still 71.3MB. Free memory was 32.5MB in the beginning and 31.6MB in the end (delta: 920.6kB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 339.87ms. Allocated memory is still 71.3MB. Free memory was 31.6MB in the beginning and 45.7MB in the end (delta: -14.1MB). Peak memory consumption was 15.2MB. Max. memory is 8.0GB. * TraceAbstraction took 4265.35ms. Allocated memory was 71.3MB in the beginning and 138.4MB in the end (delta: 67.1MB). Free memory was 44.4MB in the beginning and 41.9MB in the end (delta: 2.5MB). Peak memory consumption was 66.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: 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, 187 locations, 18 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.1s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 689 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 689 mSDsluCounter, 308 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 182 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 653 IncrementalHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 126 mSDtfsCounter, 653 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2616occurred in iteration=12, InterpolantAutomatonStates: 93, 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, 1.1s InterpolantComputationTime, 616 NumberOfCodeBlocks, 616 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 604 ConstructedInterpolants, 0 QuantifiedInterpolants, 1566 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-15 03:10:11,113 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...