/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.positions.where.we.compute.the.hoare.annotation All --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows ASSERTandASSUME -i ../../../trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.empire2-owicki-f61efc6-m [2025-03-15 02:39:01,957 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-15 02:39:02,016 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2025-03-15 02:39:02,056 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-15 02:39:02,057 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-15 02:39:02,057 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-15 02:39:02,057 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-15 02:39:02,057 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-15 02:39:02,057 INFO L153 SettingsManager]: * Use SBE=true [2025-03-15 02:39:02,058 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-15 02:39:02,058 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-15 02:39:02,058 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-15 02:39:02,058 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-15 02:39:02,059 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-15 02:39:02,059 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-15 02:39:02,059 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-15 02:39:02,059 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-15 02:39:02,059 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-15 02:39:02,059 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-15 02:39:02,059 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-15 02:39:02,059 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-15 02:39:02,059 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-15 02:39:02,059 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-15 02:39:02,060 INFO L153 SettingsManager]: * To the following directory=./dump/ [2025-03-15 02:39:02,060 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-15 02:39:02,060 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 02:39:02,060 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-15 02:39:02,060 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-15 02:39:02,060 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-15 02:39:02,060 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-15 02:39:02,060 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-15 02:39:02,060 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-15 02:39:02,060 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> ASSERTandASSUME [2025-03-15 02:39:02,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-15 02:39:02,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-15 02:39:02,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-15 02:39:02,299 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-15 02:39:02,299 INFO L274 PluginConnector]: CDTParser initialized [2025-03-15 02:39:02,300 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2025-03-15 02:39:03,677 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03f72fda6/3d83e3d1ac454feb95722a322397f554/FLAGa2c3fa8df [2025-03-15 02:39:03,944 INFO L384 CDTParser]: Found 1 translation units. [2025-03-15 02:39:03,945 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2025-03-15 02:39:03,954 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03f72fda6/3d83e3d1ac454feb95722a322397f554/FLAGa2c3fa8df [2025-03-15 02:39:03,970 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03f72fda6/3d83e3d1ac454feb95722a322397f554 [2025-03-15 02:39:03,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-15 02:39:03,973 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-03-15 02:39:03,974 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-15 02:39:03,974 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-15 02:39:03,978 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-15 02:39:03,979 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:39:03" (1/1) ... [2025-03-15 02:39:03,979 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34d8ace5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:39:03, skipping insertion in model container [2025-03-15 02:39:03,980 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:39:03" (1/1) ... [2025-03-15 02:39:03,994 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-15 02:39:04,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 02:39:04,134 INFO L200 MainTranslator]: Completed pre-run [2025-03-15 02:39:04,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 02:39:04,172 INFO L204 MainTranslator]: Completed translation [2025-03-15 02:39:04,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:39:04 WrapperNode [2025-03-15 02:39:04,172 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-15 02:39:04,173 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-15 02:39:04,173 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-15 02:39:04,173 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-15 02:39:04,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:39:04" (1/1) ... [2025-03-15 02:39:04,183 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:39:04" (1/1) ... [2025-03-15 02:39:04,208 INFO L138 Inliner]: procedures = 25, calls = 56, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 337 [2025-03-15 02:39:04,208 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-15 02:39:04,209 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-15 02:39:04,209 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-15 02:39:04,209 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-15 02:39:04,219 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:39:04" (1/1) ... [2025-03-15 02:39:04,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:39:04" (1/1) ... [2025-03-15 02:39:04,226 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:39:04" (1/1) ... [2025-03-15 02:39:04,226 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:39:04" (1/1) ... [2025-03-15 02:39:04,236 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:39:04" (1/1) ... [2025-03-15 02:39:04,239 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:39:04" (1/1) ... [2025-03-15 02:39:04,242 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:39:04" (1/1) ... [2025-03-15 02:39:04,243 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:39:04" (1/1) ... [2025-03-15 02:39:04,244 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:39:04" (1/1) ... [2025-03-15 02:39:04,246 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-15 02:39:04,247 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-15 02:39:04,248 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-15 02:39:04,248 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-15 02:39:04,248 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:39:04" (1/1) ... [2025-03-15 02:39:04,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 02:39:04,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:39:04,278 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-03-15 02:39:04,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-03-15 02:39:04,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-15 02:39:04,298 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-15 02:39:04,298 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-15 02:39:04,298 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-15 02:39:04,298 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-15 02:39:04,298 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-15 02:39:04,298 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-15 02:39:04,298 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-03-15 02:39:04,298 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-03-15 02:39:04,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-15 02:39:04,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-15 02:39:04,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-15 02:39:04,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-15 02:39:04,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-15 02:39:04,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-15 02:39:04,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-15 02:39:04,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-15 02:39:04,299 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-15 02:39:04,378 INFO L234 CfgBuilder]: Building ICFG [2025-03-15 02:39:04,379 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-15 02:39:04,770 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-15 02:39:04,771 INFO L283 CfgBuilder]: Performing block encoding [2025-03-15 02:39:05,035 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-15 02:39:05,035 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-15 02:39:05,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:39:05 BoogieIcfgContainer [2025-03-15 02:39:05,035 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-15 02:39:05,037 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-15 02:39:05,038 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-15 02:39:05,041 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-15 02:39:05,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 02:39:03" (1/3) ... [2025-03-15 02:39:05,042 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@105f28a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:39:05, skipping insertion in model container [2025-03-15 02:39:05,042 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:39:04" (2/3) ... [2025-03-15 02:39:05,042 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@105f28a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:39:05, skipping insertion in model container [2025-03-15 02:39:05,042 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:39:05" (3/3) ... [2025-03-15 02:39:05,043 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-bad-buffer-mult-alt2.wvr.c [2025-03-15 02:39:05,054 INFO L303 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-15 02:39:05,055 INFO L169 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-bad-buffer-mult-alt2.wvr.c that has 5 procedures, 260 locations, 1 initial locations, 6 loop locations, and 30 error locations. [2025-03-15 02:39:05,056 INFO L581 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-15 02:39:05,174 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-03-15 02:39:05,211 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-15 02:39:05,225 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;@7883de1d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-15 02:39:05,225 INFO L334 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2025-03-15 02:39:05,269 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-15 02:39:05,269 INFO L124 PetriNetUnfolderBase]: 2/98 cut-off events. [2025-03-15 02:39:05,271 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-15 02:39:05,271 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:39:05,271 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:39:05,273 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:39:05,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:39:05,279 INFO L85 PathProgramCache]: Analyzing trace with hash 49429159, now seen corresponding path program 1 times [2025-03-15 02:39:05,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:39:05,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800261561] [2025-03-15 02:39:05,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:39:05,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:39:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:39:05,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:39:05,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:39:05,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800261561] [2025-03-15 02:39:05,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800261561] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:39:05,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:39:05,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 02:39:05,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406923292] [2025-03-15 02:39:05,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:39:05,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 02:39:05,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:39:05,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 02:39:05,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 02:39:05,655 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 272 [2025-03-15 02:39:05,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 272 transitions, 572 flow. Second operand has 4 states, 4 states have (on average 199.5) internal successors, (798), 4 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:39:05,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:39:05,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 272 [2025-03-15 02:39:05,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:39:08,494 INFO L124 PetriNetUnfolderBase]: 11501/15853 cut-off events. [2025-03-15 02:39:08,494 INFO L125 PetriNetUnfolderBase]: For 2483/2483 co-relation queries the response was YES. [2025-03-15 02:39:08,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31169 conditions, 15853 events. 11501/15853 cut-off events. For 2483/2483 co-relation queries the response was YES. Maximal size of possible extension queue 1421. Compared 87901 event pairs, 5718 based on Foata normal form. 8/5061 useless extension candidates. Maximal degree in co-relation 30474. Up to 13924 conditions per place. [2025-03-15 02:39:08,681 INFO L140 encePairwiseOnDemand]: 242/272 looper letters, 65 selfloop transitions, 10 changer transitions 15/264 dead transitions. [2025-03-15 02:39:08,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 264 transitions, 704 flow [2025-03-15 02:39:08,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-15 02:39:08,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-15 02:39:08,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1086 transitions. [2025-03-15 02:39:08,697 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7985294117647059 [2025-03-15 02:39:08,699 INFO L298 CegarLoopForPetriNet]: 272 programPoint places, -15 predicate places. [2025-03-15 02:39:08,699 INFO L471 AbstractCegarLoop]: Abstraction has has 257 places, 264 transitions, 704 flow [2025-03-15 02:39:08,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 199.5) internal successors, (798), 4 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:39:08,700 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:39:08,700 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:39:08,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-15 02:39:08,700 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:39:08,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:39:08,701 INFO L85 PathProgramCache]: Analyzing trace with hash 2110792799, now seen corresponding path program 1 times [2025-03-15 02:39:08,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:39:08,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60663652] [2025-03-15 02:39:08,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:39:08,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:39:08,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:39:08,928 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:39:08,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:39:08,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60663652] [2025-03-15 02:39:08,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60663652] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:39:08,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808810940] [2025-03-15 02:39:08,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:39:08,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:39:08,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:39:08,932 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-15 02:39:08,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-15 02:39:09,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:39:09,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-15 02:39:09,123 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:39:09,197 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:39:09,197 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-15 02:39:09,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808810940] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:39:09,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-15 02:39:09,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-03-15 02:39:09,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482939804] [2025-03-15 02:39:09,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:39:09,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 02:39:09,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:39:09,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 02:39:09,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-15 02:39:09,200 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 272 [2025-03-15 02:39:09,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 264 transitions, 704 flow. Second operand has 6 states, 6 states have (on average 200.16666666666666) internal successors, (1201), 6 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:39:09,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:39:09,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 272 [2025-03-15 02:39:09,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:39:11,300 INFO L124 PetriNetUnfolderBase]: 11501/15851 cut-off events. [2025-03-15 02:39:11,300 INFO L125 PetriNetUnfolderBase]: For 2940/3342 co-relation queries the response was YES. [2025-03-15 02:39:11,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45103 conditions, 15851 events. 11501/15851 cut-off events. For 2940/3342 co-relation queries the response was YES. Maximal size of possible extension queue 1421. Compared 88006 event pairs, 5718 based on Foata normal form. 0/5053 useless extension candidates. Maximal degree in co-relation 44215. Up to 13922 conditions per place. [2025-03-15 02:39:11,479 INFO L140 encePairwiseOnDemand]: 260/272 looper letters, 57 selfloop transitions, 16 changer transitions 15/262 dead transitions. [2025-03-15 02:39:11,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 262 transitions, 844 flow [2025-03-15 02:39:11,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-15 02:39:11,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-15 02:39:11,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1462 transitions. [2025-03-15 02:39:11,483 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7678571428571429 [2025-03-15 02:39:11,483 INFO L298 CegarLoopForPetriNet]: 272 programPoint places, -11 predicate places. [2025-03-15 02:39:11,483 INFO L471 AbstractCegarLoop]: Abstraction has has 261 places, 262 transitions, 844 flow [2025-03-15 02:39:11,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 200.16666666666666) internal successors, (1201), 6 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:39:11,484 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:39:11,484 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:39:11,492 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-15 02:39:11,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:39:11,685 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:39:11,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:39:11,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1010068222, now seen corresponding path program 1 times [2025-03-15 02:39:11,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:39:11,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243434712] [2025-03-15 02:39:11,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:39:11,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:39:11,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:39:11,827 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:39:11,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:39:11,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243434712] [2025-03-15 02:39:11,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243434712] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:39:11,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60793438] [2025-03-15 02:39:11,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:39:11,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:39:11,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:39:11,830 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-15 02:39:11,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-15 02:39:11,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:39:11,928 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-15 02:39:11,929 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:39:11,969 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:39:11,969 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 02:39:12,017 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:39:12,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60793438] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 02:39:12,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 02:39:12,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-03-15 02:39:12,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141311604] [2025-03-15 02:39:12,018 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 02:39:12,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-15 02:39:12,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:39:12,021 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-15 02:39:12,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-15 02:39:12,022 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 272 [2025-03-15 02:39:12,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 262 transitions, 844 flow. Second operand has 12 states, 12 states have (on average 200.83333333333334) internal successors, (2410), 12 states have internal predecessors, (2410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:39:12,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:39:12,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 272 [2025-03-15 02:39:12,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:39:14,541 INFO L124 PetriNetUnfolderBase]: 11507/15921 cut-off events. [2025-03-15 02:39:14,541 INFO L125 PetriNetUnfolderBase]: For 3838/4642 co-relation queries the response was YES. [2025-03-15 02:39:14,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59267 conditions, 15921 events. 11507/15921 cut-off events. For 3838/4642 co-relation queries the response was YES. Maximal size of possible extension queue 1421. Compared 88555 event pairs, 5718 based on Foata normal form. 0/5117 useless extension candidates. Maximal degree in co-relation 57956. Up to 13974 conditions per place. [2025-03-15 02:39:14,787 INFO L140 encePairwiseOnDemand]: 258/272 looper letters, 89 selfloop transitions, 36 changer transitions 15/314 dead transitions. [2025-03-15 02:39:14,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 314 transitions, 1408 flow [2025-03-15 02:39:14,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-15 02:39:14,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-15 02:39:14,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2904 transitions. [2025-03-15 02:39:14,792 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7626050420168067 [2025-03-15 02:39:14,792 INFO L298 CegarLoopForPetriNet]: 272 programPoint places, 2 predicate places. [2025-03-15 02:39:14,793 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 314 transitions, 1408 flow [2025-03-15 02:39:14,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 200.83333333333334) internal successors, (2410), 12 states have internal predecessors, (2410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:39:14,794 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:39:14,794 INFO L221 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:39:14,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-15 02:39:14,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2025-03-15 02:39:14,997 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:39:14,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:39:14,997 INFO L85 PathProgramCache]: Analyzing trace with hash -84379946, now seen corresponding path program 2 times [2025-03-15 02:39:14,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:39:14,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714871561] [2025-03-15 02:39:14,998 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 02:39:14,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:39:15,015 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-15 02:39:15,015 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 02:39:15,118 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-15 02:39:15,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:39:15,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714871561] [2025-03-15 02:39:15,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714871561] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:39:15,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546816581] [2025-03-15 02:39:15,118 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 02:39:15,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:39:15,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:39:15,121 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-15 02:39:15,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-15 02:39:15,204 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-15 02:39:15,204 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 02:39:15,205 INFO L256 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-15 02:39:15,207 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:39:15,286 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-15 02:39:15,286 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 02:39:15,381 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-15 02:39:15,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546816581] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 02:39:15,381 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 02:39:15,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 7 [2025-03-15 02:39:15,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406510127] [2025-03-15 02:39:15,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 02:39:15,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-15 02:39:15,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:39:15,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-15 02:39:15,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-15 02:39:15,383 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 272 [2025-03-15 02:39:15,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 314 transitions, 1408 flow. Second operand has 8 states, 8 states have (on average 182.125) internal successors, (1457), 8 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:39:15,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:39:15,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 272 [2025-03-15 02:39:15,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:39:16,979 INFO L124 PetriNetUnfolderBase]: 8037/11433 cut-off events. [2025-03-15 02:39:16,979 INFO L125 PetriNetUnfolderBase]: For 4306/5242 co-relation queries the response was YES. [2025-03-15 02:39:16,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51905 conditions, 11433 events. 8037/11433 cut-off events. For 4306/5242 co-relation queries the response was YES. Maximal size of possible extension queue 1012. Compared 62910 event pairs, 3987 based on Foata normal form. 0/4162 useless extension candidates. Maximal degree in co-relation 50486. Up to 9824 conditions per place. [2025-03-15 02:39:17,070 INFO L140 encePairwiseOnDemand]: 248/272 looper letters, 100 selfloop transitions, 41 changer transitions 15/312 dead transitions. [2025-03-15 02:39:17,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 312 transitions, 1676 flow [2025-03-15 02:39:17,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-15 02:39:17,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-15 02:39:17,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2592 transitions. [2025-03-15 02:39:17,078 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.680672268907563 [2025-03-15 02:39:17,079 INFO L298 CegarLoopForPetriNet]: 272 programPoint places, 12 predicate places. [2025-03-15 02:39:17,079 INFO L471 AbstractCegarLoop]: Abstraction has has 284 places, 312 transitions, 1676 flow [2025-03-15 02:39:17,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.125) internal successors, (1457), 8 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:39:17,080 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:39:17,080 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:39:17,086 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-15 02:39:17,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:39:17,285 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:39:17,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:39:17,286 INFO L85 PathProgramCache]: Analyzing trace with hash -556433995, now seen corresponding path program 1 times [2025-03-15 02:39:17,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:39:17,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342928312] [2025-03-15 02:39:17,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:39:17,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:39:17,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:39:17,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:39:17,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:39:17,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342928312] [2025-03-15 02:39:17,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342928312] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:39:17,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:39:17,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-15 02:39:17,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997480736] [2025-03-15 02:39:17,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:39:17,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-15 02:39:17,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:39:17,396 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-15 02:39:17,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-15 02:39:17,396 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 272 [2025-03-15 02:39:17,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 312 transitions, 1676 flow. Second operand has 3 states, 3 states have (on average 222.33333333333334) internal successors, (667), 3 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:39:17,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:39:17,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 272 [2025-03-15 02:39:17,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:39:19,484 INFO L124 PetriNetUnfolderBase]: 11281/17230 cut-off events. [2025-03-15 02:39:19,484 INFO L125 PetriNetUnfolderBase]: For 21565/22789 co-relation queries the response was YES. [2025-03-15 02:39:19,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84788 conditions, 17230 events. 11281/17230 cut-off events. For 21565/22789 co-relation queries the response was YES. Maximal size of possible extension queue 1460. Compared 129067 event pairs, 2631 based on Foata normal form. 0/7560 useless extension candidates. Maximal degree in co-relation 83011. Up to 12854 conditions per place. [2025-03-15 02:39:19,657 INFO L140 encePairwiseOnDemand]: 268/272 looper letters, 56 selfloop transitions, 2 changer transitions 16/339 dead transitions. [2025-03-15 02:39:19,657 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 339 transitions, 2071 flow [2025-03-15 02:39:19,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-15 02:39:19,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-15 02:39:19,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 725 transitions. [2025-03-15 02:39:19,659 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8884803921568627 [2025-03-15 02:39:19,659 INFO L298 CegarLoopForPetriNet]: 272 programPoint places, 14 predicate places. [2025-03-15 02:39:19,659 INFO L471 AbstractCegarLoop]: Abstraction has has 286 places, 339 transitions, 2071 flow [2025-03-15 02:39:19,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 222.33333333333334) internal successors, (667), 3 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:39:19,659 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:39:19,660 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:39:19,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-15 02:39:19,660 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:39:19,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:39:19,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1849714530, now seen corresponding path program 1 times [2025-03-15 02:39:19,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:39:19,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493601855] [2025-03-15 02:39:19,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:39:19,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:39:19,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:39:19,776 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:39:19,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:39:19,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493601855] [2025-03-15 02:39:19,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493601855] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:39:19,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390560627] [2025-03-15 02:39:19,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:39:19,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:39:19,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:39:19,778 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-15 02:39:19,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-15 02:39:19,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:39:19,882 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-15 02:39:19,885 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:39:20,021 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:39:20,022 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 02:39:20,164 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:39:20,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390560627] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 02:39:20,164 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 02:39:20,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-03-15 02:39:20,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806861375] [2025-03-15 02:39:20,164 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 02:39:20,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-15 02:39:20,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:39:20,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-15 02:39:20,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-15 02:39:20,167 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 272 [2025-03-15 02:39:20,168 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 339 transitions, 2071 flow. Second operand has 7 states, 7 states have (on average 223.28571428571428) internal successors, (1563), 7 states have internal predecessors, (1563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:39:20,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:39:20,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 272 [2025-03-15 02:39:20,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:39:24,863 INFO L124 PetriNetUnfolderBase]: 20401/33940 cut-off events. [2025-03-15 02:39:24,863 INFO L125 PetriNetUnfolderBase]: For 72677/81295 co-relation queries the response was YES. [2025-03-15 02:39:24,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185214 conditions, 33940 events. 20401/33940 cut-off events. For 72677/81295 co-relation queries the response was YES. Maximal size of possible extension queue 2290. Compared 306856 event pairs, 4289 based on Foata normal form. 16/16556 useless extension candidates. Maximal degree in co-relation 178488. Up to 23353 conditions per place. [2025-03-15 02:39:25,223 INFO L140 encePairwiseOnDemand]: 268/272 looper letters, 155 selfloop transitions, 9 changer transitions 19/448 dead transitions. [2025-03-15 02:39:25,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 448 transitions, 3701 flow [2025-03-15 02:39:25,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-15 02:39:25,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-15 02:39:25,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1719 transitions. [2025-03-15 02:39:25,226 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.9028361344537815 [2025-03-15 02:39:25,227 INFO L298 CegarLoopForPetriNet]: 272 programPoint places, 20 predicate places. [2025-03-15 02:39:25,227 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 448 transitions, 3701 flow [2025-03-15 02:39:25,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 223.28571428571428) internal successors, (1563), 7 states have internal predecessors, (1563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:39:25,228 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:39:25,228 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:39:25,234 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-15 02:39:25,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:39:25,432 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:39:25,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:39:25,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1849714529, now seen corresponding path program 1 times [2025-03-15 02:39:25,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:39:25,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238522205] [2025-03-15 02:39:25,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:39:25,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:39:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:39:25,503 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:39:25,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:39:25,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238522205] [2025-03-15 02:39:25,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238522205] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:39:25,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:39:25,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-15 02:39:25,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784699364] [2025-03-15 02:39:25,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:39:25,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-15 02:39:25,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:39:25,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-15 02:39:25,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-15 02:39:25,505 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 272 [2025-03-15 02:39:25,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 448 transitions, 3701 flow. Second operand has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:39:25,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:39:25,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 272 [2025-03-15 02:39:25,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:39:30,767 INFO L124 PetriNetUnfolderBase]: 22590/36115 cut-off events. [2025-03-15 02:39:30,767 INFO L125 PetriNetUnfolderBase]: For 94468/98092 co-relation queries the response was YES. [2025-03-15 02:39:30,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227074 conditions, 36115 events. 22590/36115 cut-off events. For 94468/98092 co-relation queries the response was YES. Maximal size of possible extension queue 2062. Compared 307776 event pairs, 3316 based on Foata normal form. 42/17671 useless extension candidates. Maximal degree in co-relation 223627. Up to 28888 conditions per place. [2025-03-15 02:39:31,215 INFO L140 encePairwiseOnDemand]: 270/272 looper letters, 137 selfloop transitions, 1 changer transitions 19/422 dead transitions. [2025-03-15 02:39:31,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 422 transitions, 3630 flow [2025-03-15 02:39:31,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-15 02:39:31,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-15 02:39:31,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 696 transitions. [2025-03-15 02:39:31,217 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8529411764705882 [2025-03-15 02:39:31,218 INFO L298 CegarLoopForPetriNet]: 272 programPoint places, 20 predicate places. [2025-03-15 02:39:31,218 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 422 transitions, 3630 flow [2025-03-15 02:39:31,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:39:31,218 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:39:31,218 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:39:31,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-15 02:39:31,218 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:39:31,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:39:31,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1778553781, now seen corresponding path program 1 times [2025-03-15 02:39:31,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:39:31,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269642918] [2025-03-15 02:39:31,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:39:31,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:39:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:39:31,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:39:31,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:39:31,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269642918] [2025-03-15 02:39:31,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269642918] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:39:31,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:39:31,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 02:39:31,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293781837] [2025-03-15 02:39:31,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:39:31,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 02:39:31,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:39:31,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 02:39:31,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 02:39:31,294 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 272 [2025-03-15 02:39:31,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 422 transitions, 3630 flow. Second operand has 4 states, 4 states have (on average 219.75) internal successors, (879), 4 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:39:31,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:39:31,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 272 [2025-03-15 02:39:31,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:39:36,541 INFO L124 PetriNetUnfolderBase]: 21890/33733 cut-off events. [2025-03-15 02:39:36,542 INFO L125 PetriNetUnfolderBase]: For 108973/113215 co-relation queries the response was YES. [2025-03-15 02:39:36,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239561 conditions, 33733 events. 21890/33733 cut-off events. For 108973/113215 co-relation queries the response was YES. Maximal size of possible extension queue 1768. Compared 266089 event pairs, 3391 based on Foata normal form. 36/16081 useless extension candidates. Maximal degree in co-relation 235954. Up to 27329 conditions per place. [2025-03-15 02:39:36,924 INFO L140 encePairwiseOnDemand]: 268/272 looper letters, 122 selfloop transitions, 3 changer transitions 19/417 dead transitions. [2025-03-15 02:39:36,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 417 transitions, 3810 flow [2025-03-15 02:39:36,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-15 02:39:36,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-15 02:39:36,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 903 transitions. [2025-03-15 02:39:36,925 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8299632352941176 [2025-03-15 02:39:36,926 INFO L298 CegarLoopForPetriNet]: 272 programPoint places, 22 predicate places. [2025-03-15 02:39:36,926 INFO L471 AbstractCegarLoop]: Abstraction has has 294 places, 417 transitions, 3810 flow [2025-03-15 02:39:36,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 219.75) internal successors, (879), 4 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:39:36,926 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:39:36,926 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:39:36,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-15 02:39:36,927 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:39:36,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:39:36,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1778553780, now seen corresponding path program 1 times [2025-03-15 02:39:36,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:39:36,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384219561] [2025-03-15 02:39:36,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:39:36,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:39:36,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:39:37,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:39:37,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:39:37,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384219561] [2025-03-15 02:39:37,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384219561] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:39:37,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:39:37,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 02:39:37,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102301151] [2025-03-15 02:39:37,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:39:37,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 02:39:37,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:39:37,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 02:39:37,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-15 02:39:37,030 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 272 [2025-03-15 02:39:37,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 417 transitions, 3810 flow. Second operand has 6 states, 6 states have (on average 198.5) internal successors, (1191), 6 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:39:37,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:39:37,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 272 [2025-03-15 02:39:37,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:39:41,984 INFO L124 PetriNetUnfolderBase]: 18951/32002 cut-off events. [2025-03-15 02:39:41,984 INFO L125 PetriNetUnfolderBase]: For 163234/169016 co-relation queries the response was YES. [2025-03-15 02:39:42,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237833 conditions, 32002 events. 18951/32002 cut-off events. For 163234/169016 co-relation queries the response was YES. Maximal size of possible extension queue 1889. Compared 281567 event pairs, 2419 based on Foata normal form. 350/16940 useless extension candidates. Maximal degree in co-relation 221118. Up to 24714 conditions per place. [2025-03-15 02:39:42,428 INFO L140 encePairwiseOnDemand]: 251/272 looper letters, 244 selfloop transitions, 12 changer transitions 29/485 dead transitions. [2025-03-15 02:39:42,429 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 485 transitions, 5670 flow [2025-03-15 02:39:42,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-15 02:39:42,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-15 02:39:42,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1838 transitions. [2025-03-15 02:39:42,431 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7508169934640523 [2025-03-15 02:39:42,431 INFO L298 CegarLoopForPetriNet]: 272 programPoint places, 30 predicate places. [2025-03-15 02:39:42,431 INFO L471 AbstractCegarLoop]: Abstraction has has 302 places, 485 transitions, 5670 flow [2025-03-15 02:39:42,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 198.5) internal successors, (1191), 6 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:39:42,432 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:39:42,432 INFO L221 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:39:42,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-15 02:39:42,432 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:39:42,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:39:42,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1370120053, now seen corresponding path program 2 times [2025-03-15 02:39:42,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:39:42,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027046371] [2025-03-15 02:39:42,433 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 02:39:42,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:39:42,447 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-15 02:39:42,447 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 02:39:42,593 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-03-15 02:39:42,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:39:42,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027046371] [2025-03-15 02:39:42,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027046371] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:39:42,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:39:42,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 02:39:42,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111615847] [2025-03-15 02:39:42,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:39:42,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 02:39:42,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:39:42,595 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 02:39:42,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-15 02:39:42,596 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 272 [2025-03-15 02:39:42,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 485 transitions, 5670 flow. Second operand has 6 states, 6 states have (on average 198.5) internal successors, (1191), 6 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:39:42,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:39:42,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 272 [2025-03-15 02:39:42,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:39:48,571 INFO L124 PetriNetUnfolderBase]: 20319/34225 cut-off events. [2025-03-15 02:39:48,571 INFO L125 PetriNetUnfolderBase]: For 206803/214819 co-relation queries the response was YES. [2025-03-15 02:39:48,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277185 conditions, 34225 events. 20319/34225 cut-off events. For 206803/214819 co-relation queries the response was YES. Maximal size of possible extension queue 1910. Compared 295647 event pairs, 3274 based on Foata normal form. 260/17936 useless extension candidates. Maximal degree in co-relation 228350. Up to 26415 conditions per place. [2025-03-15 02:39:49,034 INFO L140 encePairwiseOnDemand]: 256/272 looper letters, 301 selfloop transitions, 12 changer transitions 42/555 dead transitions. [2025-03-15 02:39:49,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 555 transitions, 7408 flow [2025-03-15 02:39:49,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-15 02:39:49,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-15 02:39:49,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1852 transitions. [2025-03-15 02:39:49,037 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7565359477124183 [2025-03-15 02:39:49,038 INFO L298 CegarLoopForPetriNet]: 272 programPoint places, 38 predicate places. [2025-03-15 02:39:49,038 INFO L471 AbstractCegarLoop]: Abstraction has has 310 places, 555 transitions, 7408 flow [2025-03-15 02:39:49,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 198.5) internal successors, (1191), 6 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:39:49,039 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:39:49,039 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:39:49,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-15 02:39:49,039 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:39:49,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:39:49,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1238351476, now seen corresponding path program 1 times [2025-03-15 02:39:49,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:39:49,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351903188] [2025-03-15 02:39:49,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:39:49,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:39:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:39:49,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-15 02:39:49,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:39:49,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351903188] [2025-03-15 02:39:49,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351903188] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:39:49,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:39:49,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-15 02:39:49,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834510277] [2025-03-15 02:39:49,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:39:49,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 02:39:49,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:39:49,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 02:39:49,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-15 02:39:49,152 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 272 [2025-03-15 02:39:49,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 555 transitions, 7408 flow. Second operand has 5 states, 5 states have (on average 183.2) internal successors, (916), 5 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:39:49,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:39:49,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 272 [2025-03-15 02:39:49,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:39:54,030 INFO L124 PetriNetUnfolderBase]: 16850/28657 cut-off events. [2025-03-15 02:39:54,031 INFO L125 PetriNetUnfolderBase]: For 196937/203290 co-relation queries the response was YES. [2025-03-15 02:39:54,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249711 conditions, 28657 events. 16850/28657 cut-off events. For 196937/203290 co-relation queries the response was YES. Maximal size of possible extension queue 1656. Compared 243488 event pairs, 2874 based on Foata normal form. 30/15473 useless extension candidates. Maximal degree in co-relation 228337. Up to 21964 conditions per place. [2025-03-15 02:39:54,432 INFO L140 encePairwiseOnDemand]: 262/272 looper letters, 221 selfloop transitions, 5 changer transitions 42/549 dead transitions. [2025-03-15 02:39:54,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 549 transitions, 7802 flow [2025-03-15 02:39:54,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-15 02:39:54,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-15 02:39:54,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1127 transitions. [2025-03-15 02:39:54,434 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6905637254901961 [2025-03-15 02:39:54,434 INFO L298 CegarLoopForPetriNet]: 272 programPoint places, 42 predicate places. [2025-03-15 02:39:54,434 INFO L471 AbstractCegarLoop]: Abstraction has has 314 places, 549 transitions, 7802 flow [2025-03-15 02:39:54,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 183.2) internal successors, (916), 5 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:39:54,435 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:39:54,435 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:39:54,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-15 02:39:54,435 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:39:54,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:39:54,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1238351478, now seen corresponding path program 1 times [2025-03-15 02:39:54,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:39:54,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52788508] [2025-03-15 02:39:54,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:39:54,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:39:54,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:39:54,664 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:39:54,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:39:54,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52788508] [2025-03-15 02:39:54,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52788508] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:39:54,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829425356] [2025-03-15 02:39:54,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:39:54,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:39:54,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:39:54,671 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-15 02:39:54,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-15 02:39:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:39:54,764 INFO L256 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-15 02:39:54,767 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:39:54,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-15 02:39:54,860 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-15 02:39:54,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829425356] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:39:54,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-15 02:39:54,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2025-03-15 02:39:54,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711810737] [2025-03-15 02:39:54,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:39:54,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 02:39:54,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:39:54,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 02:39:54,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-03-15 02:39:54,861 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 272 [2025-03-15 02:39:54,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 549 transitions, 7802 flow. Second operand has 4 states, 4 states have (on average 220.5) internal successors, (882), 4 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:39:54,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:39:54,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 272 [2025-03-15 02:39:54,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:39:58,568 INFO L124 PetriNetUnfolderBase]: 11331/20543 cut-off events. [2025-03-15 02:39:58,568 INFO L125 PetriNetUnfolderBase]: For 197821/203322 co-relation queries the response was YES. [2025-03-15 02:39:58,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184836 conditions, 20543 events. 11331/20543 cut-off events. For 197821/203322 co-relation queries the response was YES. Maximal size of possible extension queue 1102. Compared 175251 event pairs, 1804 based on Foata normal form. 3/11988 useless extension candidates. Maximal degree in co-relation 151519. Up to 15066 conditions per place. [2025-03-15 02:39:58,919 INFO L140 encePairwiseOnDemand]: 267/272 looper letters, 179 selfloop transitions, 3 changer transitions 42/537 dead transitions. [2025-03-15 02:39:58,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 537 transitions, 7926 flow [2025-03-15 02:39:58,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-15 02:39:58,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-15 02:39:58,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 904 transitions. [2025-03-15 02:39:58,921 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8308823529411765 [2025-03-15 02:39:58,921 INFO L298 CegarLoopForPetriNet]: 272 programPoint places, 43 predicate places. [2025-03-15 02:39:58,921 INFO L471 AbstractCegarLoop]: Abstraction has has 315 places, 537 transitions, 7926 flow [2025-03-15 02:39:58,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 220.5) internal successors, (882), 4 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:39:58,922 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:39:58,922 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:39:58,927 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-15 02:39:59,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-03-15 02:39:59,122 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:39:59,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:39:59,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1238351479, now seen corresponding path program 1 times [2025-03-15 02:39:59,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:39:59,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743881355] [2025-03-15 02:39:59,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:39:59,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:39:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:39:59,179 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-15 02:39:59,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:39:59,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743881355] [2025-03-15 02:39:59,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743881355] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:39:59,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:39:59,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-15 02:39:59,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062170155] [2025-03-15 02:39:59,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:39:59,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-15 02:39:59,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:39:59,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-15 02:39:59,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-15 02:39:59,182 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 272 [2025-03-15 02:39:59,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 537 transitions, 7926 flow. Second operand has 3 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:39:59,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:39:59,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 272 [2025-03-15 02:39:59,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:40:05,988 INFO L124 PetriNetUnfolderBase]: 19291/37073 cut-off events. [2025-03-15 02:40:05,988 INFO L125 PetriNetUnfolderBase]: For 575542/585796 co-relation queries the response was YES. [2025-03-15 02:40:06,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314369 conditions, 37073 events. 19291/37073 cut-off events. For 575542/585796 co-relation queries the response was YES. Maximal size of possible extension queue 1572. Compared 360395 event pairs, 3416 based on Foata normal form. 2/23207 useless extension candidates. Maximal degree in co-relation 239470. Up to 22936 conditions per place. [2025-03-15 02:40:06,631 INFO L140 encePairwiseOnDemand]: 268/272 looper letters, 271 selfloop transitions, 7 changer transitions 48/642 dead transitions. [2025-03-15 02:40:06,631 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 642 transitions, 11332 flow [2025-03-15 02:40:06,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-15 02:40:06,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-15 02:40:06,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 714 transitions. [2025-03-15 02:40:06,633 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.875 [2025-03-15 02:40:06,634 INFO L298 CegarLoopForPetriNet]: 272 programPoint places, 45 predicate places. [2025-03-15 02:40:06,634 INFO L471 AbstractCegarLoop]: Abstraction has has 317 places, 642 transitions, 11332 flow [2025-03-15 02:40:06,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:40:06,634 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:40:06,634 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:40:06,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-15 02:40:06,634 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:40:06,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:40:06,635 INFO L85 PathProgramCache]: Analyzing trace with hash -2039021106, now seen corresponding path program 1 times [2025-03-15 02:40:06,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:40:06,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125681283] [2025-03-15 02:40:06,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:40:06,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:40:06,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:40:06,726 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-15 02:40:06,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:40:06,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125681283] [2025-03-15 02:40:06,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125681283] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:40:06,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489147519] [2025-03-15 02:40:06,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:40:06,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:40:06,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:40:06,729 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-15 02:40:06,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-15 02:40:06,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:40:06,838 INFO L256 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-15 02:40:06,840 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:40:06,994 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-15 02:40:06,994 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-15 02:40:06,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489147519] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:40:06,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-15 02:40:06,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2025-03-15 02:40:06,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241556100] [2025-03-15 02:40:06,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:40:06,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 02:40:06,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:40:06,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 02:40:06,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-15 02:40:06,996 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 272 [2025-03-15 02:40:06,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 642 transitions, 11332 flow. Second operand has 4 states, 4 states have (on average 222.75) internal successors, (891), 4 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:40:06,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:40:06,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 272 [2025-03-15 02:40:06,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:40:13,375 INFO L124 PetriNetUnfolderBase]: 16383/32528 cut-off events. [2025-03-15 02:40:13,375 INFO L125 PetriNetUnfolderBase]: For 608817/621715 co-relation queries the response was YES. [2025-03-15 02:40:13,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287439 conditions, 32528 events. 16383/32528 cut-off events. For 608817/621715 co-relation queries the response was YES. Maximal size of possible extension queue 1301. Compared 316954 event pairs, 3172 based on Foata normal form. 297/21325 useless extension candidates. Maximal degree in co-relation 210596. Up to 19318 conditions per place. [2025-03-15 02:40:13,975 INFO L140 encePairwiseOnDemand]: 269/272 looper letters, 265 selfloop transitions, 7 changer transitions 48/636 dead transitions. [2025-03-15 02:40:13,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 636 transitions, 11768 flow [2025-03-15 02:40:13,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-15 02:40:13,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-15 02:40:13,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 933 transitions. [2025-03-15 02:40:13,977 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8575367647058824 [2025-03-15 02:40:13,977 INFO L298 CegarLoopForPetriNet]: 272 programPoint places, 47 predicate places. [2025-03-15 02:40:13,977 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 636 transitions, 11768 flow [2025-03-15 02:40:13,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 222.75) internal successors, (891), 4 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:40:13,978 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:40:13,978 INFO L221 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:40:13,984 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-15 02:40:14,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:40:14,178 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:40:14,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:40:14,179 INFO L85 PathProgramCache]: Analyzing trace with hash -2039021105, now seen corresponding path program 1 times [2025-03-15 02:40:14,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:40:14,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78662407] [2025-03-15 02:40:14,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:40:14,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:40:14,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:40:14,248 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-15 02:40:14,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:40:14,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78662407] [2025-03-15 02:40:14,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78662407] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:40:14,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078603008] [2025-03-15 02:40:14,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:40:14,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:40:14,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:40:14,250 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-15 02:40:14,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-15 02:40:14,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:40:14,350 INFO L256 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-15 02:40:14,352 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:40:14,480 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-15 02:40:14,480 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 02:40:14,709 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-15 02:40:14,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078603008] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 02:40:14,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 02:40:14,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-03-15 02:40:14,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304454504] [2025-03-15 02:40:14,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 02:40:14,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-15 02:40:14,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:40:14,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-15 02:40:14,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-15 02:40:14,712 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 272 [2025-03-15 02:40:14,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 636 transitions, 11768 flow. Second operand has 7 states, 7 states have (on average 223.71428571428572) internal successors, (1566), 7 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:40:14,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:40:14,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 272 [2025-03-15 02:40:14,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:40:29,463 INFO L124 PetriNetUnfolderBase]: 34495/68901 cut-off events. [2025-03-15 02:40:29,464 INFO L125 PetriNetUnfolderBase]: For 1469972/1491172 co-relation queries the response was YES. [2025-03-15 02:40:29,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 644128 conditions, 68901 events. 34495/68901 cut-off events. For 1469972/1491172 co-relation queries the response was YES. Maximal size of possible extension queue 2701. Compared 753528 event pairs, 4267 based on Foata normal form. 293/45467 useless extension candidates. Maximal degree in co-relation 550937. Up to 39994 conditions per place. [2025-03-15 02:40:30,900 INFO L140 encePairwiseOnDemand]: 269/272 looper letters, 547 selfloop transitions, 25 changer transitions 66/954 dead transitions. [2025-03-15 02:40:30,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 954 transitions, 22656 flow [2025-03-15 02:40:30,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-15 02:40:30,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-15 02:40:30,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1443 transitions. [2025-03-15 02:40:30,903 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8841911764705882 [2025-03-15 02:40:30,904 INFO L298 CegarLoopForPetriNet]: 272 programPoint places, 52 predicate places. [2025-03-15 02:40:30,904 INFO L471 AbstractCegarLoop]: Abstraction has has 324 places, 954 transitions, 22656 flow [2025-03-15 02:40:30,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 223.71428571428572) internal successors, (1566), 7 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:40:30,905 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:40:30,905 INFO L221 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:40:30,911 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-15 02:40:31,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:40:31,106 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:40:31,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:40:31,106 INFO L85 PathProgramCache]: Analyzing trace with hash 320141567, now seen corresponding path program 1 times [2025-03-15 02:40:31,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:40:31,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346846869] [2025-03-15 02:40:31,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:40:31,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:40:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:40:31,290 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:40:31,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:40:31,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346846869] [2025-03-15 02:40:31,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346846869] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:40:31,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645089297] [2025-03-15 02:40:31,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:40:31,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:40:31,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:40:31,292 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-15 02:40:31,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-15 02:40:31,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:40:31,394 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-15 02:40:31,396 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:40:31,471 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:40:31,471 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 02:40:31,619 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:40:31,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645089297] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 02:40:31,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 02:40:31,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2025-03-15 02:40:31,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902414374] [2025-03-15 02:40:31,620 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 02:40:31,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-15 02:40:31,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:40:31,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-15 02:40:31,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2025-03-15 02:40:31,623 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 272 [2025-03-15 02:40:31,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 954 transitions, 22656 flow. Second operand has 24 states, 24 states have (on average 201.375) internal successors, (4833), 24 states have internal predecessors, (4833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:40:31,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:40:31,626 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 272 [2025-03-15 02:40:31,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:40:47,274 INFO L124 PetriNetUnfolderBase]: 34589/69302 cut-off events. [2025-03-15 02:40:47,275 INFO L125 PetriNetUnfolderBase]: For 1687334/1708063 co-relation queries the response was YES. [2025-03-15 02:40:47,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 682648 conditions, 69302 events. 34589/69302 cut-off events. For 1687334/1708063 co-relation queries the response was YES. Maximal size of possible extension queue 2703. Compared 757245 event pairs, 4300 based on Foata normal form. 2/45450 useless extension candidates. Maximal degree in co-relation 521105. Up to 40063 conditions per place. [2025-03-15 02:40:48,502 INFO L140 encePairwiseOnDemand]: 259/272 looper letters, 714 selfloop transitions, 114 changer transitions 66/1098 dead transitions. [2025-03-15 02:40:48,503 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 1098 transitions, 26286 flow [2025-03-15 02:40:48,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-03-15 02:40:48,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2025-03-15 02:40:48,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 6567 transitions. [2025-03-15 02:40:48,508 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7544806985294118 [2025-03-15 02:40:48,508 INFO L298 CegarLoopForPetriNet]: 272 programPoint places, 83 predicate places. [2025-03-15 02:40:48,508 INFO L471 AbstractCegarLoop]: Abstraction has has 355 places, 1098 transitions, 26286 flow [2025-03-15 02:40:48,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 201.375) internal successors, (4833), 24 states have internal predecessors, (4833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:40:48,509 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:40:48,509 INFO L221 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:40:48,517 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-15 02:40:48,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-03-15 02:40:48,710 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:40:48,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:40:48,711 INFO L85 PathProgramCache]: Analyzing trace with hash -731557699, now seen corresponding path program 1 times [2025-03-15 02:40:48,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:40:48,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140104432] [2025-03-15 02:40:48,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:40:48,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:40:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:40:48,846 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-15 02:40:48,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:40:48,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140104432] [2025-03-15 02:40:48,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140104432] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:40:48,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059131826] [2025-03-15 02:40:48,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:40:48,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:40:48,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:40:48,850 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-15 02:40:48,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-15 02:40:48,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:40:48,964 INFO L256 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-15 02:40:48,966 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:40:49,120 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-15 02:40:49,121 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 02:40:49,261 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-15 02:40:49,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059131826] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 02:40:49,262 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 02:40:49,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2025-03-15 02:40:49,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340285216] [2025-03-15 02:40:49,262 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 02:40:49,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-15 02:40:49,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:40:49,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-15 02:40:49,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-03-15 02:40:49,264 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 272 [2025-03-15 02:40:49,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 1098 transitions, 26286 flow. Second operand has 13 states, 13 states have (on average 223.15384615384616) internal successors, (2901), 13 states have internal predecessors, (2901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:40:49,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:40:49,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 272 [2025-03-15 02:40:49,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:41:26,970 INFO L124 PetriNetUnfolderBase]: 71417/141427 cut-off events. [2025-03-15 02:41:26,970 INFO L125 PetriNetUnfolderBase]: For 3886878/3932210 co-relation queries the response was YES. [2025-03-15 02:41:27,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1486256 conditions, 141427 events. 71417/141427 cut-off events. For 3886878/3932210 co-relation queries the response was YES. Maximal size of possible extension queue 3715. Compared 1633875 event pairs, 7234 based on Foata normal form. 18/93561 useless extension candidates. Maximal degree in co-relation 1191239. Up to 82650 conditions per place. [2025-03-15 02:41:30,073 INFO L140 encePairwiseOnDemand]: 269/272 looper letters, 1117 selfloop transitions, 61 changer transitions 108/1746 dead transitions. [2025-03-15 02:41:30,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 1746 transitions, 51070 flow [2025-03-15 02:41:30,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-15 02:41:30,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-03-15 02:41:30,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2914 transitions. [2025-03-15 02:41:30,076 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8927696078431373 [2025-03-15 02:41:30,077 INFO L298 CegarLoopForPetriNet]: 272 programPoint places, 94 predicate places. [2025-03-15 02:41:30,077 INFO L471 AbstractCegarLoop]: Abstraction has has 366 places, 1746 transitions, 51070 flow [2025-03-15 02:41:30,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 223.15384615384616) internal successors, (2901), 13 states have internal predecessors, (2901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:41:30,078 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:41:30,078 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:41:30,084 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-15 02:41:30,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-03-15 02:41:30,279 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:41:30,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:41:30,280 INFO L85 PathProgramCache]: Analyzing trace with hash -146592880, now seen corresponding path program 1 times [2025-03-15 02:41:30,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:41:30,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503554947] [2025-03-15 02:41:30,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:41:30,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:41:30,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:41:30,435 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-15 02:41:30,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:41:30,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503554947] [2025-03-15 02:41:30,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503554947] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:41:30,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:41:30,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-15 02:41:30,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351131198] [2025-03-15 02:41:30,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:41:30,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 02:41:30,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:41:30,437 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 02:41:30,437 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-15 02:41:30,437 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 272 [2025-03-15 02:41:30,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 1746 transitions, 51070 flow. Second operand has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:41:30,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:41:30,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 272 [2025-03-15 02:41:30,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:42:12,155 INFO L124 PetriNetUnfolderBase]: 65823/130969 cut-off events. [2025-03-15 02:42:12,155 INFO L125 PetriNetUnfolderBase]: For 4034470/4077352 co-relation queries the response was YES. [2025-03-15 02:42:13,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1439421 conditions, 130969 events. 65823/130969 cut-off events. For 4034470/4077352 co-relation queries the response was YES. Maximal size of possible extension queue 3590. Compared 1513349 event pairs, 6485 based on Foata normal form. 309/87906 useless extension candidates. Maximal degree in co-relation 1293664. Up to 76260 conditions per place. [2025-03-15 02:42:15,199 INFO L140 encePairwiseOnDemand]: 257/272 looper letters, 1166 selfloop transitions, 9 changer transitions 117/1722 dead transitions. [2025-03-15 02:42:15,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 1722 transitions, 52582 flow [2025-03-15 02:42:15,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-15 02:42:15,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-15 02:42:15,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1131 transitions. [2025-03-15 02:42:15,201 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6930147058823529 [2025-03-15 02:42:15,201 INFO L298 CegarLoopForPetriNet]: 272 programPoint places, 99 predicate places. [2025-03-15 02:42:15,201 INFO L471 AbstractCegarLoop]: Abstraction has has 371 places, 1722 transitions, 52582 flow [2025-03-15 02:42:15,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:42:15,202 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:42:15,202 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:42:15,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-15 02:42:15,202 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:42:15,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:42:15,203 INFO L85 PathProgramCache]: Analyzing trace with hash -765938185, now seen corresponding path program 1 times [2025-03-15 02:42:15,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:42:15,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624253358] [2025-03-15 02:42:15,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:42:15,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:42:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:42:15,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:42:15,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:42:15,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624253358] [2025-03-15 02:42:15,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624253358] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 02:42:15,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315520478] [2025-03-15 02:42:15,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:42:15,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:42:15,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:42:15,910 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-15 02:42:15,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-15 02:42:16,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:42:16,009 INFO L256 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-15 02:42:16,011 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 02:42:16,469 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:42:16,469 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 02:42:16,578 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-15 02:42:16,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 16 [2025-03-15 02:42:17,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:42:17,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315520478] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 02:42:17,309 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 02:42:17,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 32 [2025-03-15 02:42:17,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525443634] [2025-03-15 02:42:17,309 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 02:42:17,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2025-03-15 02:42:17,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:42:17,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2025-03-15 02:42:17,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=932, Unknown=0, NotChecked=0, Total=1056 [2025-03-15 02:42:17,312 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 272 [2025-03-15 02:42:17,315 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 1722 transitions, 52582 flow. Second operand has 33 states, 33 states have (on average 153.54545454545453) internal successors, (5067), 33 states have internal predecessors, (5067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:42:17,315 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:42:17,315 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 272 [2025-03-15 02:42:17,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:43:43,350 INFO L124 PetriNetUnfolderBase]: 121390/241492 cut-off events. [2025-03-15 02:43:43,350 INFO L125 PetriNetUnfolderBase]: For 8366216/8453103 co-relation queries the response was YES. [2025-03-15 02:43:45,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2783806 conditions, 241492 events. 121390/241492 cut-off events. For 8366216/8453103 co-relation queries the response was YES. Maximal size of possible extension queue 6109. Compared 2980113 event pairs, 11924 based on Foata normal form. 10/162348 useless extension candidates. Maximal degree in co-relation 1192960. Up to 140701 conditions per place. [2025-03-15 02:43:50,021 INFO L140 encePairwiseOnDemand]: 238/272 looper letters, 2557 selfloop transitions, 84 changer transitions 196/2982 dead transitions. [2025-03-15 02:43:50,021 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 2982 transitions, 102448 flow [2025-03-15 02:43:50,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2025-03-15 02:43:50,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2025-03-15 02:43:50,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 5576 transitions. [2025-03-15 02:43:50,027 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5694444444444444 [2025-03-15 02:43:50,028 INFO L298 CegarLoopForPetriNet]: 272 programPoint places, 134 predicate places. [2025-03-15 02:43:50,028 INFO L471 AbstractCegarLoop]: Abstraction has has 406 places, 2982 transitions, 102448 flow [2025-03-15 02:43:50,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 153.54545454545453) internal successors, (5067), 33 states have internal predecessors, (5067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:43:50,029 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:43:50,029 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:43:50,036 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-15 02:43:50,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 02:43:50,230 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-15 02:43:50,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:43:50,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1624882344, now seen corresponding path program 1 times [2025-03-15 02:43:50,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:43:50,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103311326] [2025-03-15 02:43:50,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:43:50,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:43:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:43:50,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-15 02:43:50,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:43:50,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103311326] [2025-03-15 02:43:50,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103311326] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:43:50,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:43:50,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-15 02:43:50,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586492079] [2025-03-15 02:43:50,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:43:50,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-15 02:43:50,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:43:50,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-15 02:43:50,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-15 02:43:50,505 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 272 [2025-03-15 02:43:50,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 2982 transitions, 102448 flow. Second operand has 3 states, 3 states have (on average 226.0) internal successors, (678), 3 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:43:50,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:43:50,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 272 [2025-03-15 02:43:50,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand