/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/pthread-ext/37_stack_lock_p0_vs_concur.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.empire2-owicki-f61efc6-m [2025-03-15 01:34:19,617 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-15 01:34:19,706 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 01:34:19,734 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-15 01:34:19,736 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-15 01:34:19,736 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-15 01:34:19,737 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-15 01:34:19,737 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-15 01:34:19,737 INFO L153 SettingsManager]: * Use SBE=true [2025-03-15 01:34:19,737 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-15 01:34:19,738 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-15 01:34:19,738 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-15 01:34:19,738 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-15 01:34:19,738 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-15 01:34:19,738 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-15 01:34:19,738 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-15 01:34:19,738 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-15 01:34:19,738 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-15 01:34:19,738 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-15 01:34:19,738 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-15 01:34:19,738 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-15 01:34:19,739 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-15 01:34:19,739 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-15 01:34:19,739 INFO L153 SettingsManager]: * To the following directory=./dump/ [2025-03-15 01:34:19,739 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-15 01:34:19,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 01:34:19,739 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-15 01:34:19,739 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-15 01:34:19,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-15 01:34:19,739 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-15 01:34:19,740 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-15 01:34:19,740 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-15 01:34:19,740 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 01:34:19,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-15 01:34:19,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-15 01:34:19,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-15 01:34:19,990 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-15 01:34:19,991 INFO L274 PluginConnector]: CDTParser initialized [2025-03-15 01:34:19,993 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/37_stack_lock_p0_vs_concur.i [2025-03-15 01:34:21,222 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9db21f6a6/fcd050df0f0541fbafc06b74cfda58e6/FLAG0a871f595 [2025-03-15 01:34:21,467 INFO L384 CDTParser]: Found 1 translation units. [2025-03-15 01:34:21,468 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/37_stack_lock_p0_vs_concur.i [2025-03-15 01:34:21,483 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9db21f6a6/fcd050df0f0541fbafc06b74cfda58e6/FLAG0a871f595 [2025-03-15 01:34:21,795 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9db21f6a6/fcd050df0f0541fbafc06b74cfda58e6 [2025-03-15 01:34:21,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-15 01:34:21,797 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-03-15 01:34:21,798 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-15 01:34:21,798 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-15 01:34:21,801 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-15 01:34:21,802 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 01:34:21" (1/1) ... [2025-03-15 01:34:21,802 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52d1d1df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:34:21, skipping insertion in model container [2025-03-15 01:34:21,802 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 01:34:21" (1/1) ... [2025-03-15 01:34:21,831 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-15 01:34:22,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 01:34:22,097 INFO L200 MainTranslator]: Completed pre-run [2025-03-15 01:34:22,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 01:34:22,175 INFO L204 MainTranslator]: Completed translation [2025-03-15 01:34:22,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:34:22 WrapperNode [2025-03-15 01:34:22,176 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-15 01:34:22,177 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-15 01:34:22,177 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-15 01:34:22,177 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-15 01:34:22,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:34:22" (1/1) ... [2025-03-15 01:34:22,191 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:34:22" (1/1) ... [2025-03-15 01:34:22,205 INFO L138 Inliner]: procedures = 165, calls = 30, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 154 [2025-03-15 01:34:22,206 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-15 01:34:22,206 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-15 01:34:22,206 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-15 01:34:22,206 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-15 01:34:22,211 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:34:22" (1/1) ... [2025-03-15 01:34:22,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:34:22" (1/1) ... [2025-03-15 01:34:22,214 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:34:22" (1/1) ... [2025-03-15 01:34:22,214 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:34:22" (1/1) ... [2025-03-15 01:34:22,218 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:34:22" (1/1) ... [2025-03-15 01:34:22,219 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:34:22" (1/1) ... [2025-03-15 01:34:22,221 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:34:22" (1/1) ... [2025-03-15 01:34:22,222 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:34:22" (1/1) ... [2025-03-15 01:34:22,223 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:34:22" (1/1) ... [2025-03-15 01:34:22,230 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-15 01:34:22,231 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-15 01:34:22,231 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-15 01:34:22,232 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-15 01:34:22,233 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:34:22" (1/1) ... [2025-03-15 01:34:22,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 01:34:22,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 01:34:22,275 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 01:34:22,277 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 01:34:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-15 01:34:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-03-15 01:34:22,297 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-03-15 01:34:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-15 01:34:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-15 01:34:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-15 01:34:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-15 01:34:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-15 01:34:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-15 01:34:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-15 01:34:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-15 01:34:22,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-15 01:34:22,298 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 01:34:22,386 INFO L234 CfgBuilder]: Building ICFG [2025-03-15 01:34:22,387 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-15 01:34:22,598 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-15 01:34:22,598 INFO L283 CfgBuilder]: Performing block encoding [2025-03-15 01:34:22,670 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-15 01:34:22,670 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-03-15 01:34:22,671 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 01:34:22 BoogieIcfgContainer [2025-03-15 01:34:22,671 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-15 01:34:22,674 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-15 01:34:22,674 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-15 01:34:22,678 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-15 01:34:22,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 01:34:21" (1/3) ... [2025-03-15 01:34:22,679 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6264d0fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 01:34:22, skipping insertion in model container [2025-03-15 01:34:22,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:34:22" (2/3) ... [2025-03-15 01:34:22,679 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6264d0fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 01:34:22, skipping insertion in model container [2025-03-15 01:34:22,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 01:34:22" (3/3) ... [2025-03-15 01:34:22,680 INFO L128 eAbstractionObserver]: Analyzing ICFG 37_stack_lock_p0_vs_concur.i [2025-03-15 01:34:22,690 INFO L303 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-15 01:34:22,692 INFO L169 ceAbstractionStarter]: Applying trace abstraction to ICFG 37_stack_lock_p0_vs_concur.i that has 2 procedures, 157 locations, 1 initial locations, 2 loop locations, and 10 error locations. [2025-03-15 01:34:22,692 INFO L581 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-15 01:34:22,766 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-15 01:34:22,801 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-15 01:34:22,810 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;@2131cb2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-15 01:34:22,810 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2025-03-15 01:34:22,859 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-15 01:34:22,860 INFO L124 PetriNetUnfolderBase]: 0/108 cut-off events. [2025-03-15 01:34:22,862 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-15 01:34:22,863 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:34:22,863 INFO L221 CegarLoopForPetriNet]: trace histogram [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 01:34:22,864 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-03-15 01:34:22,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:34:22,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1639094195, now seen corresponding path program 1 times [2025-03-15 01:34:22,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:34:22,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578645014] [2025-03-15 01:34:22,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:34:22,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:34:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-15 01:34:23,001 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-15 01:34:23,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-15 01:34:23,071 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-15 01:34:23,072 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-15 01:34:23,072 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2025-03-15 01:34:23,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2025-03-15 01:34:23,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2025-03-15 01:34:23,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2025-03-15 01:34:23,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2025-03-15 01:34:23,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2025-03-15 01:34:23,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2025-03-15 01:34:23,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2025-03-15 01:34:23,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2025-03-15 01:34:23,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2025-03-15 01:34:23,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2025-03-15 01:34:23,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2025-03-15 01:34:23,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2025-03-15 01:34:23,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2025-03-15 01:34:23,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2025-03-15 01:34:23,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2025-03-15 01:34:23,075 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2025-03-15 01:34:23,075 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2025-03-15 01:34:23,075 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2025-03-15 01:34:23,075 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2025-03-15 01:34:23,075 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2025-03-15 01:34:23,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-15 01:34:23,075 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-15 01:34:23,079 WARN L336 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-15 01:34:23,079 INFO L581 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-15 01:34:23,130 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-15 01:34:23,135 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-15 01:34:23,135 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;@2131cb2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-15 01:34:23,135 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2025-03-15 01:34:23,166 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-15 01:34:23,166 INFO L124 PetriNetUnfolderBase]: 0/116 cut-off events. [2025-03-15 01:34:23,166 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-15 01:34:23,166 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:34:23,166 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] [2025-03-15 01:34:23,166 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2025-03-15 01:34:23,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:34:23,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1776074767, now seen corresponding path program 1 times [2025-03-15 01:34:23,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:34:23,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863198318] [2025-03-15 01:34:23,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:34:23,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:34:23,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:34:23,430 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 01:34:23,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:34:23,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863198318] [2025-03-15 01:34:23,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863198318] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:34:23,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 01:34:23,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-15 01:34:23,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627041710] [2025-03-15 01:34:23,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:34:23,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-15 01:34:23,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:34:23,453 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-15 01:34:23,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-15 01:34:23,456 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 231 [2025-03-15 01:34:23,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 231 transitions, 472 flow. Second operand has 3 states, 3 states have (on average 196.0) internal successors, (588), 3 states have internal predecessors, (588), 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 01:34:23,461 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:34:23,461 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 231 [2025-03-15 01:34:23,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:34:23,689 INFO L124 PetriNetUnfolderBase]: 147/724 cut-off events. [2025-03-15 01:34:23,689 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2025-03-15 01:34:23,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 987 conditions, 724 events. 147/724 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3803 event pairs, 53 based on Foata normal form. 186/727 useless extension candidates. Maximal degree in co-relation 775. Up to 228 conditions per place. [2025-03-15 01:34:23,704 INFO L140 encePairwiseOnDemand]: 207/231 looper letters, 19 selfloop transitions, 3 changer transitions 0/208 dead transitions. [2025-03-15 01:34:23,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 208 transitions, 475 flow [2025-03-15 01:34:23,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-15 01:34:23,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-15 01:34:23,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 637 transitions. [2025-03-15 01:34:23,719 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.9191919191919192 [2025-03-15 01:34:23,723 INFO L298 CegarLoopForPetriNet]: 226 programPoint places, -18 predicate places. [2025-03-15 01:34:23,723 INFO L471 AbstractCegarLoop]: Abstraction has has 208 places, 208 transitions, 475 flow [2025-03-15 01:34:23,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 196.0) internal successors, (588), 3 states have internal predecessors, (588), 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 01:34:23,724 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:34:23,724 INFO L221 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 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 01:34:23,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-15 01:34:23,726 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2025-03-15 01:34:23,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:34:23,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1547739279, now seen corresponding path program 1 times [2025-03-15 01:34:23,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:34:23,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421344308] [2025-03-15 01:34:23,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:34:23,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:34:23,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-15 01:34:23,774 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-15 01:34:23,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-15 01:34:23,814 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-15 01:34:23,814 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-15 01:34:23,814 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2025-03-15 01:34:23,814 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 31 remaining) [2025-03-15 01:34:23,814 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 31 remaining) [2025-03-15 01:34:23,814 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 31 remaining) [2025-03-15 01:34:23,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 31 remaining) [2025-03-15 01:34:23,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 31 remaining) [2025-03-15 01:34:23,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 31 remaining) [2025-03-15 01:34:23,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 31 remaining) [2025-03-15 01:34:23,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 31 remaining) [2025-03-15 01:34:23,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 31 remaining) [2025-03-15 01:34:23,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 31 remaining) [2025-03-15 01:34:23,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 31 remaining) [2025-03-15 01:34:23,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 31 remaining) [2025-03-15 01:34:23,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 31 remaining) [2025-03-15 01:34:23,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 31 remaining) [2025-03-15 01:34:23,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 31 remaining) [2025-03-15 01:34:23,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 31 remaining) [2025-03-15 01:34:23,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 31 remaining) [2025-03-15 01:34:23,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 31 remaining) [2025-03-15 01:34:23,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 31 remaining) [2025-03-15 01:34:23,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 31 remaining) [2025-03-15 01:34:23,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 31 remaining) [2025-03-15 01:34:23,816 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 31 remaining) [2025-03-15 01:34:23,816 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 31 remaining) [2025-03-15 01:34:23,816 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 31 remaining) [2025-03-15 01:34:23,816 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 31 remaining) [2025-03-15 01:34:23,816 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 31 remaining) [2025-03-15 01:34:23,816 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 31 remaining) [2025-03-15 01:34:23,816 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 31 remaining) [2025-03-15 01:34:23,816 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 31 remaining) [2025-03-15 01:34:23,816 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 31 remaining) [2025-03-15 01:34:23,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-15 01:34:23,816 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-15 01:34:23,817 WARN L336 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-15 01:34:23,817 INFO L581 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-03-15 01:34:23,861 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-15 01:34:23,864 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-15 01:34:23,864 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;@2131cb2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-15 01:34:23,864 INFO L334 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2025-03-15 01:34:23,871 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-15 01:34:23,872 INFO L124 PetriNetUnfolderBase]: 0/116 cut-off events. [2025-03-15 01:34:23,872 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-15 01:34:23,872 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:34:23,872 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] [2025-03-15 01:34:23,872 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2025-03-15 01:34:23,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:34:23,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1117615391, now seen corresponding path program 1 times [2025-03-15 01:34:23,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:34:23,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765209734] [2025-03-15 01:34:23,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:34:23,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:34:23,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:34:24,019 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 01:34:24,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:34:24,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765209734] [2025-03-15 01:34:24,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765209734] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:34:24,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 01:34:24,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-15 01:34:24,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242660158] [2025-03-15 01:34:24,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:34:24,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-15 01:34:24,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:34:24,021 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-15 01:34:24,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-15 01:34:24,022 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 300 [2025-03-15 01:34:24,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 300 transitions, 618 flow. Second operand has 3 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 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 01:34:24,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:34:24,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 300 [2025-03-15 01:34:24,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:34:25,035 INFO L124 PetriNetUnfolderBase]: 2476/7084 cut-off events. [2025-03-15 01:34:25,035 INFO L125 PetriNetUnfolderBase]: For 517/517 co-relation queries the response was YES. [2025-03-15 01:34:25,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10660 conditions, 7084 events. 2476/7084 cut-off events. For 517/517 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 65971 event pairs, 1139 based on Foata normal form. 2130/6963 useless extension candidates. Maximal degree in co-relation 9200. Up to 3215 conditions per place. [2025-03-15 01:34:25,112 INFO L140 encePairwiseOnDemand]: 265/300 looper letters, 29 selfloop transitions, 4 changer transitions 0/268 dead transitions. [2025-03-15 01:34:25,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 268 transitions, 632 flow [2025-03-15 01:34:25,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-15 01:34:25,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-15 01:34:25,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 818 transitions. [2025-03-15 01:34:25,115 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.9088888888888889 [2025-03-15 01:34:25,116 INFO L298 CegarLoopForPetriNet]: 292 programPoint places, -26 predicate places. [2025-03-15 01:34:25,116 INFO L471 AbstractCegarLoop]: Abstraction has has 266 places, 268 transitions, 632 flow [2025-03-15 01:34:25,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 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 01:34:25,117 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:34:25,117 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] [2025-03-15 01:34:25,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-15 01:34:25,117 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2025-03-15 01:34:25,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:34:25,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1854334908, now seen corresponding path program 1 times [2025-03-15 01:34:25,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:34:25,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255272672] [2025-03-15 01:34:25,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:34:25,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:34:25,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:34:25,389 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 01:34:25,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:34:25,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255272672] [2025-03-15 01:34:25,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255272672] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:34:25,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 01:34:25,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-15 01:34:25,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910463477] [2025-03-15 01:34:25,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:34:25,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 01:34:25,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:34:25,390 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 01:34:25,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-15 01:34:25,391 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 300 [2025-03-15 01:34:25,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 268 transitions, 632 flow. Second operand has 5 states, 5 states have (on average 217.2) internal successors, (1086), 5 states have internal predecessors, (1086), 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 01:34:25,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:34:25,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 300 [2025-03-15 01:34:25,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:34:29,169 INFO L124 PetriNetUnfolderBase]: 13442/39498 cut-off events. [2025-03-15 01:34:29,169 INFO L125 PetriNetUnfolderBase]: For 8070/12955 co-relation queries the response was YES. [2025-03-15 01:34:29,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70527 conditions, 39498 events. 13442/39498 cut-off events. For 8070/12955 co-relation queries the response was YES. Maximal size of possible extension queue 1385. Compared 508053 event pairs, 4817 based on Foata normal form. 0/30677 useless extension candidates. Maximal degree in co-relation 53751. Up to 16142 conditions per place. [2025-03-15 01:34:29,585 INFO L140 encePairwiseOnDemand]: 291/300 looper letters, 126 selfloop transitions, 12 changer transitions 0/340 dead transitions. [2025-03-15 01:34:29,586 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 340 transitions, 1161 flow [2025-03-15 01:34:29,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-15 01:34:29,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-15 01:34:29,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1426 transitions. [2025-03-15 01:34:29,590 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7922222222222223 [2025-03-15 01:34:29,590 INFO L298 CegarLoopForPetriNet]: 292 programPoint places, -21 predicate places. [2025-03-15 01:34:29,591 INFO L471 AbstractCegarLoop]: Abstraction has has 271 places, 340 transitions, 1161 flow [2025-03-15 01:34:29,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 217.2) internal successors, (1086), 5 states have internal predecessors, (1086), 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 01:34:29,591 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:34:29,595 INFO L221 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:34:29,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-15 01:34:29,595 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2025-03-15 01:34:29,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:34:29,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1091088929, now seen corresponding path program 1 times [2025-03-15 01:34:29,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:34:29,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677400912] [2025-03-15 01:34:29,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:34:29,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:34:29,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-15 01:34:29,623 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-15 01:34:29,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-15 01:34:29,645 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-15 01:34:29,645 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-15 01:34:29,646 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 41 remaining) [2025-03-15 01:34:29,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 41 remaining) [2025-03-15 01:34:29,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 41 remaining) [2025-03-15 01:34:29,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 41 remaining) [2025-03-15 01:34:29,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 41 remaining) [2025-03-15 01:34:29,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 41 remaining) [2025-03-15 01:34:29,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 41 remaining) [2025-03-15 01:34:29,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 41 remaining) [2025-03-15 01:34:29,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 41 remaining) [2025-03-15 01:34:29,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 41 remaining) [2025-03-15 01:34:29,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 41 remaining) [2025-03-15 01:34:29,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 41 remaining) [2025-03-15 01:34:29,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 41 remaining) [2025-03-15 01:34:29,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 41 remaining) [2025-03-15 01:34:29,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 41 remaining) [2025-03-15 01:34:29,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 41 remaining) [2025-03-15 01:34:29,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 41 remaining) [2025-03-15 01:34:29,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 41 remaining) [2025-03-15 01:34:29,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 41 remaining) [2025-03-15 01:34:29,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 41 remaining) [2025-03-15 01:34:29,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 41 remaining) [2025-03-15 01:34:29,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 41 remaining) [2025-03-15 01:34:29,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 41 remaining) [2025-03-15 01:34:29,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 41 remaining) [2025-03-15 01:34:29,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 41 remaining) [2025-03-15 01:34:29,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 41 remaining) [2025-03-15 01:34:29,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 41 remaining) [2025-03-15 01:34:29,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 41 remaining) [2025-03-15 01:34:29,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 41 remaining) [2025-03-15 01:34:29,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 41 remaining) [2025-03-15 01:34:29,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 41 remaining) [2025-03-15 01:34:29,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 41 remaining) [2025-03-15 01:34:29,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 41 remaining) [2025-03-15 01:34:29,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 41 remaining) [2025-03-15 01:34:29,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 41 remaining) [2025-03-15 01:34:29,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 41 remaining) [2025-03-15 01:34:29,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 41 remaining) [2025-03-15 01:34:29,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 41 remaining) [2025-03-15 01:34:29,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 41 remaining) [2025-03-15 01:34:29,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 41 remaining) [2025-03-15 01:34:29,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 41 remaining) [2025-03-15 01:34:29,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-15 01:34:29,649 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-15 01:34:29,650 WARN L336 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-15 01:34:29,650 INFO L581 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2025-03-15 01:34:29,692 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-15 01:34:29,697 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-15 01:34:29,697 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;@2131cb2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-15 01:34:29,697 INFO L334 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2025-03-15 01:34:29,704 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-15 01:34:29,704 INFO L124 PetriNetUnfolderBase]: 0/113 cut-off events. [2025-03-15 01:34:29,705 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-15 01:34:29,705 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:34:29,705 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] [2025-03-15 01:34:29,705 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2025-03-15 01:34:29,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:34:29,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1386985142, now seen corresponding path program 1 times [2025-03-15 01:34:29,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:34:29,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213964742] [2025-03-15 01:34:29,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:34:29,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:34:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:34:29,776 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 01:34:29,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:34:29,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213964742] [2025-03-15 01:34:29,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213964742] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:34:29,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 01:34:29,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-15 01:34:29,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387299917] [2025-03-15 01:34:29,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:34:29,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-15 01:34:29,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:34:29,777 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-15 01:34:29,777 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-15 01:34:29,778 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 369 [2025-03-15 01:34:29,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 369 transitions, 766 flow. Second operand has 3 states, 3 states have (on average 300.0) internal successors, (900), 3 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 01:34:29,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:34:29,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 369 [2025-03-15 01:34:29,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:34:37,054 INFO L124 PetriNetUnfolderBase]: 32345/77413 cut-off events. [2025-03-15 01:34:37,055 INFO L125 PetriNetUnfolderBase]: For 7810/7810 co-relation queries the response was YES. [2025-03-15 01:34:37,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120344 conditions, 77413 events. 32345/77413 cut-off events. For 7810/7810 co-relation queries the response was YES. Maximal size of possible extension queue 2618. Compared 955919 event pairs, 16650 based on Foata normal form. 23271/74912 useless extension candidates. Maximal degree in co-relation 104601. Up to 38923 conditions per place. [2025-03-15 01:34:38,389 INFO L140 encePairwiseOnDemand]: 323/369 looper letters, 39 selfloop transitions, 5 changer transitions 0/328 dead transitions. [2025-03-15 01:34:38,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 328 transitions, 793 flow [2025-03-15 01:34:38,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-15 01:34:38,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-15 01:34:38,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 999 transitions. [2025-03-15 01:34:38,392 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.9024390243902439 [2025-03-15 01:34:38,392 INFO L298 CegarLoopForPetriNet]: 358 programPoint places, -34 predicate places. [2025-03-15 01:34:38,392 INFO L471 AbstractCegarLoop]: Abstraction has has 324 places, 328 transitions, 793 flow [2025-03-15 01:34:38,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 300.0) internal successors, (900), 3 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 01:34:38,393 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:34:38,393 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] [2025-03-15 01:34:38,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-15 01:34:38,393 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2025-03-15 01:34:38,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:34:38,394 INFO L85 PathProgramCache]: Analyzing trace with hash -964268540, now seen corresponding path program 1 times [2025-03-15 01:34:38,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:34:38,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813178891] [2025-03-15 01:34:38,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:34:38,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:34:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:34:38,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:34:38,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:34:38,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813178891] [2025-03-15 01:34:38,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813178891] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:34:38,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 01:34:38,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-15 01:34:38,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169814983] [2025-03-15 01:34:38,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:34:38,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 01:34:38,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:34:38,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 01:34:38,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-15 01:34:38,620 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 369 [2025-03-15 01:34:38,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 328 transitions, 793 flow. Second operand has 5 states, 5 states have (on average 264.2) internal successors, (1321), 5 states have internal predecessors, (1321), 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 01:34:38,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:34:38,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 369 [2025-03-15 01:34:38,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand