/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-complex/elimination_backoff_stack.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.empire2-owicki-f61efc6-m [2025-03-15 01:40:53,339 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-15 01:40:53,449 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 01:40:53,477 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-15 01:40:53,478 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-15 01:40:53,478 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-15 01:40:53,480 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-15 01:40:53,480 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-15 01:40:53,480 INFO L153 SettingsManager]: * Use SBE=true [2025-03-15 01:40:53,480 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-15 01:40:53,481 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-15 01:40:53,481 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-15 01:40:53,481 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-15 01:40:53,481 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-15 01:40:53,481 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-15 01:40:53,481 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-15 01:40:53,481 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-15 01:40:53,481 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-15 01:40:53,481 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-15 01:40:53,481 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-15 01:40:53,481 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-15 01:40:53,482 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-15 01:40:53,482 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-15 01:40:53,482 INFO L153 SettingsManager]: * To the following directory=./dump/ [2025-03-15 01:40:53,482 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-15 01:40:53,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 01:40:53,482 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-15 01:40:53,482 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-15 01:40:53,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-15 01:40:53,482 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-15 01:40:53,482 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-15 01:40:53,482 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-15 01:40:53,482 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 01:40:53,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-15 01:40:53,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-15 01:40:53,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-15 01:40:53,765 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-15 01:40:53,765 INFO L274 PluginConnector]: CDTParser initialized [2025-03-15 01:40:53,767 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i [2025-03-15 01:40:54,930 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c90e24b81/3ccce7c164b846eeae07cfc9c9a104a0/FLAGa45af1fb2 [2025-03-15 01:40:55,198 INFO L384 CDTParser]: Found 1 translation units. [2025-03-15 01:40:55,198 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i [2025-03-15 01:40:55,222 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c90e24b81/3ccce7c164b846eeae07cfc9c9a104a0/FLAGa45af1fb2 [2025-03-15 01:40:55,237 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c90e24b81/3ccce7c164b846eeae07cfc9c9a104a0 [2025-03-15 01:40:55,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-15 01:40:55,240 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-03-15 01:40:55,241 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-15 01:40:55,241 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-15 01:40:55,246 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-15 01:40:55,247 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 01:40:55" (1/1) ... [2025-03-15 01:40:55,248 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65836411 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:40:55, skipping insertion in model container [2025-03-15 01:40:55,248 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 01:40:55" (1/1) ... [2025-03-15 01:40:55,284 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-15 01:40:55,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 01:40:55,764 INFO L200 MainTranslator]: Completed pre-run [2025-03-15 01:40:55,857 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 01:40:55,940 INFO L204 MainTranslator]: Completed translation [2025-03-15 01:40:55,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:40:55 WrapperNode [2025-03-15 01:40:55,940 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-15 01:40:55,941 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-15 01:40:55,941 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-15 01:40:55,941 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-15 01:40:55,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:40:55" (1/1) ... [2025-03-15 01:40:55,964 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:40:55" (1/1) ... [2025-03-15 01:40:56,065 INFO L138 Inliner]: procedures = 396, calls = 207, calls flagged for inlining = 53, calls inlined = 218, statements flattened = 3870 [2025-03-15 01:40:56,065 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-15 01:40:56,066 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-15 01:40:56,066 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-15 01:40:56,066 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-15 01:40:56,072 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:40:55" (1/1) ... [2025-03-15 01:40:56,072 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:40:55" (1/1) ... [2025-03-15 01:40:56,102 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:40:55" (1/1) ... [2025-03-15 01:40:56,102 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:40:55" (1/1) ... [2025-03-15 01:40:56,197 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:40:55" (1/1) ... [2025-03-15 01:40:56,203 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:40:55" (1/1) ... [2025-03-15 01:40:56,215 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:40:55" (1/1) ... [2025-03-15 01:40:56,236 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:40:55" (1/1) ... [2025-03-15 01:40:56,252 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:40:55" (1/1) ... [2025-03-15 01:40:56,273 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-15 01:40:56,276 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-15 01:40:56,276 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-15 01:40:56,276 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-15 01:40:56,277 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:40:55" (1/1) ... [2025-03-15 01:40:56,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 01:40:56,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 01:40:56,307 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 01:40:56,310 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 01:40:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-15 01:40:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-15 01:40:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-15 01:40:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-15 01:40:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-03-15 01:40:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush2 [2025-03-15 01:40:56,329 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush2 [2025-03-15 01:40:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush1 [2025-03-15 01:40:56,329 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush1 [2025-03-15 01:40:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush0 [2025-03-15 01:40:56,329 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush0 [2025-03-15 01:40:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-15 01:40:56,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-15 01:40:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-03-15 01:40:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2025-03-15 01:40:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-15 01:40:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop5 [2025-03-15 01:40:56,329 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop5 [2025-03-15 01:40:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop6 [2025-03-15 01:40:56,330 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop6 [2025-03-15 01:40:56,330 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop3 [2025-03-15 01:40:56,330 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop3 [2025-03-15 01:40:56,330 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop4 [2025-03-15 01:40:56,330 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop4 [2025-03-15 01:40:56,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-15 01:40:56,333 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 01:40:56,622 INFO L234 CfgBuilder]: Building ICFG [2025-03-15 01:40:56,623 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-15 01:40:59,231 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-15 01:40:59,231 INFO L283 CfgBuilder]: Performing block encoding [2025-03-15 01:41:01,054 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-15 01:41:01,055 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-15 01:41:01,055 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 01:41:01 BoogieIcfgContainer [2025-03-15 01:41:01,055 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-15 01:41:01,058 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-15 01:41:01,058 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-15 01:41:01,062 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-15 01:41:01,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 01:40:55" (1/3) ... [2025-03-15 01:41:01,063 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505d37f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 01:41:01, skipping insertion in model container [2025-03-15 01:41:01,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:40:55" (2/3) ... [2025-03-15 01:41:01,064 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505d37f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 01:41:01, skipping insertion in model container [2025-03-15 01:41:01,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 01:41:01" (3/3) ... [2025-03-15 01:41:01,066 INFO L128 eAbstractionObserver]: Analyzing ICFG elimination_backoff_stack.i [2025-03-15 01:41:01,078 INFO L303 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-15 01:41:01,079 INFO L169 ceAbstractionStarter]: Applying trace abstraction to ICFG elimination_backoff_stack.i that has 8 procedures, 2467 locations, 1 initial locations, 0 loop locations, and 84 error locations. [2025-03-15 01:41:01,080 INFO L581 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-15 01:41:01,710 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-15 01:41:01,771 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-15 01:41:01,784 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;@558f2b9f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-15 01:41:01,784 INFO L334 AbstractCegarLoop]: Starting to check reachability of 175 error locations. [2025-03-15 01:41:01,824 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-15 01:41:01,825 INFO L124 PetriNetUnfolderBase]: 0/83 cut-off events. [2025-03-15 01:41:01,826 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-15 01:41:01,826 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:41:01,827 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] [2025-03-15 01:41:01,827 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting instrPush0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [instrPop3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, instrPop3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, instrPop3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 172 more)] === [2025-03-15 01:41:01,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:41:01,831 INFO L85 PathProgramCache]: Analyzing trace with hash -796759329, now seen corresponding path program 1 times [2025-03-15 01:41:01,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:41:01,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760462131] [2025-03-15 01:41:01,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:41:01,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:41:01,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:41:02,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:41:02,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:41:02,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760462131] [2025-03-15 01:41:02,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760462131] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:41:02,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 01:41:02,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-15 01:41:02,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455940878] [2025-03-15 01:41:02,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:41:02,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-15 01:41:02,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:41:02,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-15 01:41:02,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-15 01:41:02,728 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 2105 out of 2613 [2025-03-15 01:41:02,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2488 places, 2613 transitions, 5254 flow. Second operand has 8 states, 8 states have (on average 2109.375) internal successors, (16875), 8 states have internal predecessors, (16875), 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 01:41:02,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:41:02,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2105 of 2613 [2025-03-15 01:41:02,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand