/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/goblint-regression/09-regions_04-list2_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.empire2-owicki-f61efc6-m [2025-03-15 01:57:48,992 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-15 01:57:49,035 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 01:57:49,077 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-15 01:57:49,078 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-15 01:57:49,078 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-15 01:57:49,079 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-15 01:57:49,079 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-15 01:57:49,079 INFO L153 SettingsManager]: * Use SBE=true [2025-03-15 01:57:49,079 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-15 01:57:49,079 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-15 01:57:49,079 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-15 01:57:49,079 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-15 01:57:49,079 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-15 01:57:49,079 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-15 01:57:49,079 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-15 01:57:49,079 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-15 01:57:49,079 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-15 01:57:49,079 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-15 01:57:49,079 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-15 01:57:49,080 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-15 01:57:49,080 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-15 01:57:49,080 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-15 01:57:49,080 INFO L153 SettingsManager]: * To the following directory=./dump/ [2025-03-15 01:57:49,080 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-15 01:57:49,080 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 01:57:49,080 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-15 01:57:49,080 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-15 01:57:49,080 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-15 01:57:49,080 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-15 01:57:49,080 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-15 01:57:49,080 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-15 01:57:49,080 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 01:57:49,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-15 01:57:49,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-15 01:57:49,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-15 01:57:49,337 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-15 01:57:49,337 INFO L274 PluginConnector]: CDTParser initialized [2025-03-15 01:57:49,340 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_04-list2_nr.i [2025-03-15 01:57:50,502 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f58888ce3/77f22b93929c4e749539f8160ee5fdc4/FLAG4d71c94b9 [2025-03-15 01:57:50,761 INFO L384 CDTParser]: Found 1 translation units. [2025-03-15 01:57:50,762 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_04-list2_nr.i [2025-03-15 01:57:50,779 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f58888ce3/77f22b93929c4e749539f8160ee5fdc4/FLAG4d71c94b9 [2025-03-15 01:57:51,069 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f58888ce3/77f22b93929c4e749539f8160ee5fdc4 [2025-03-15 01:57:51,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-15 01:57:51,073 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-03-15 01:57:51,074 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-15 01:57:51,074 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-15 01:57:51,077 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-15 01:57:51,078 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 01:57:51" (1/1) ... [2025-03-15 01:57:51,078 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62af9db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:57:51, skipping insertion in model container [2025-03-15 01:57:51,079 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 01:57:51" (1/1) ... [2025-03-15 01:57:51,115 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-15 01:57:51,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 01:57:51,427 INFO L200 MainTranslator]: Completed pre-run [2025-03-15 01:57:51,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 01:57:51,534 INFO L204 MainTranslator]: Completed translation [2025-03-15 01:57:51,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:57:51 WrapperNode [2025-03-15 01:57:51,536 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-15 01:57:51,537 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-15 01:57:51,537 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-15 01:57:51,538 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-15 01:57:51,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:57:51" (1/1) ... [2025-03-15 01:57:51,559 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:57:51" (1/1) ... [2025-03-15 01:57:51,575 INFO L138 Inliner]: procedures = 368, calls = 45, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 89 [2025-03-15 01:57:51,575 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-15 01:57:51,578 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-15 01:57:51,578 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-15 01:57:51,578 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-15 01:57:51,583 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:57:51" (1/1) ... [2025-03-15 01:57:51,584 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:57:51" (1/1) ... [2025-03-15 01:57:51,591 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:57:51" (1/1) ... [2025-03-15 01:57:51,591 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:57:51" (1/1) ... [2025-03-15 01:57:51,598 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:57:51" (1/1) ... [2025-03-15 01:57:51,598 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:57:51" (1/1) ... [2025-03-15 01:57:51,601 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:57:51" (1/1) ... [2025-03-15 01:57:51,602 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:57:51" (1/1) ... [2025-03-15 01:57:51,602 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:57:51" (1/1) ... [2025-03-15 01:57:51,604 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-15 01:57:51,609 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-15 01:57:51,610 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-15 01:57:51,610 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-15 01:57:51,611 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:57:51" (1/1) ... [2025-03-15 01:57:51,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 01:57:51,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 01:57:51,637 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 01:57:51,642 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 01:57:51,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-03-15 01:57:51,676 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-15 01:57:51,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-15 01:57:51,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-15 01:57:51,676 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-15 01:57:51,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-15 01:57:51,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-15 01:57:51,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-03-15 01:57:51,676 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-15 01:57:51,676 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-15 01:57:51,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-15 01:57:51,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-15 01:57:51,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-15 01:57:51,677 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 01:57:51,783 INFO L234 CfgBuilder]: Building ICFG [2025-03-15 01:57:51,784 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-15 01:57:51,999 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-15 01:57:51,999 INFO L283 CfgBuilder]: Performing block encoding [2025-03-15 01:57:52,027 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-15 01:57:52,028 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-15 01:57:52,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 01:57:52 BoogieIcfgContainer [2025-03-15 01:57:52,028 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-15 01:57:52,031 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-15 01:57:52,032 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-15 01:57:52,036 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-15 01:57:52,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 01:57:51" (1/3) ... [2025-03-15 01:57:52,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@705c5200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 01:57:52, skipping insertion in model container [2025-03-15 01:57:52,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:57:51" (2/3) ... [2025-03-15 01:57:52,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@705c5200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 01:57:52, skipping insertion in model container [2025-03-15 01:57:52,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 01:57:52" (3/3) ... [2025-03-15 01:57:52,038 INFO L128 eAbstractionObserver]: Analyzing ICFG 09-regions_04-list2_nr.i [2025-03-15 01:57:52,051 INFO L303 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-15 01:57:52,052 INFO L169 ceAbstractionStarter]: Applying trace abstraction to ICFG 09-regions_04-list2_nr.i that has 2 procedures, 134 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-03-15 01:57:52,052 INFO L581 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-15 01:57:52,109 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-15 01:57:52,145 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-15 01:57:52,158 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;@456f2bb5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-15 01:57:52,158 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-03-15 01:57:52,211 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-15 01:57:52,212 INFO L124 PetriNetUnfolderBase]: 0/84 cut-off events. [2025-03-15 01:57:52,213 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-15 01:57:52,213 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:57:52,214 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] [2025-03-15 01:57:52,214 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-03-15 01:57:52,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:57:52,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1265670041, now seen corresponding path program 1 times [2025-03-15 01:57:52,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:57:52,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212332720] [2025-03-15 01:57:52,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:57:52,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:57:52,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:57:54,669 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 01:57:54,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:57:54,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212332720] [2025-03-15 01:57:54,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212332720] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:57:54,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 01:57:54,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2025-03-15 01:57:54,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778638964] [2025-03-15 01:57:54,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:57:54,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-03-15 01:57:54,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:57:54,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-03-15 01:57:54,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=610, Unknown=0, NotChecked=0, Total=702 [2025-03-15 01:57:54,699 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 133 [2025-03-15 01:57:54,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 133 transitions, 270 flow. Second operand has 27 states, 27 states have (on average 43.51851851851852) internal successors, (1175), 27 states have internal predecessors, (1175), 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 01:57:54,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:57:54,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 133 [2025-03-15 01:57:54,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:57:56,336 INFO L124 PetriNetUnfolderBase]: 187/776 cut-off events. [2025-03-15 01:57:56,337 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-15 01:57:56,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1246 conditions, 776 events. 187/776 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 4089 event pairs, 11 based on Foata normal form. 0/739 useless extension candidates. Maximal degree in co-relation 1107. Up to 178 conditions per place. [2025-03-15 01:57:56,345 INFO L140 encePairwiseOnDemand]: 93/133 looper letters, 117 selfloop transitions, 46 changer transitions 8/205 dead transitions. [2025-03-15 01:57:56,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 205 transitions, 743 flow [2025-03-15 01:57:56,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-03-15 01:57:56,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2025-03-15 01:57:56,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 1766 transitions. [2025-03-15 01:57:56,366 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.34046655099286677 [2025-03-15 01:57:56,369 INFO L298 CegarLoopForPetriNet]: 137 programPoint places, 36 predicate places. [2025-03-15 01:57:56,369 INFO L471 AbstractCegarLoop]: Abstraction has has 173 places, 205 transitions, 743 flow [2025-03-15 01:57:56,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 43.51851851851852) internal successors, (1175), 27 states have internal predecessors, (1175), 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 01:57:56,370 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:57:56,370 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] [2025-03-15 01:57:56,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-15 01:57:56,371 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-03-15 01:57:56,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:57:56,372 INFO L85 PathProgramCache]: Analyzing trace with hash 581065948, now seen corresponding path program 1 times [2025-03-15 01:57:56,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:57:56,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120496315] [2025-03-15 01:57:56,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:57:56,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:57:56,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:57:57,805 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 01:57:57,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:57:57,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120496315] [2025-03-15 01:57:57,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120496315] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:57:57,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 01:57:57,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2025-03-15 01:57:57,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276340004] [2025-03-15 01:57:57,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:57:57,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-03-15 01:57:57,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:57:57,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-03-15 01:57:57,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=610, Unknown=0, NotChecked=0, Total=702 [2025-03-15 01:57:57,808 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 133 [2025-03-15 01:57:57,809 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 205 transitions, 743 flow. Second operand has 27 states, 27 states have (on average 43.55555555555556) internal successors, (1176), 27 states have internal predecessors, (1176), 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 01:57:57,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:57:57,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 133 [2025-03-15 01:57:57,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:57:59,155 INFO L124 PetriNetUnfolderBase]: 176/739 cut-off events. [2025-03-15 01:57:59,156 INFO L125 PetriNetUnfolderBase]: For 136/168 co-relation queries the response was YES. [2025-03-15 01:57:59,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1629 conditions, 739 events. 176/739 cut-off events. For 136/168 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3820 event pairs, 11 based on Foata normal form. 26/740 useless extension candidates. Maximal degree in co-relation 1426. Up to 178 conditions per place. [2025-03-15 01:57:59,159 INFO L140 encePairwiseOnDemand]: 93/133 looper letters, 115 selfloop transitions, 46 changer transitions 8/203 dead transitions. [2025-03-15 01:57:59,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 203 transitions, 1061 flow [2025-03-15 01:57:59,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-03-15 01:57:59,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2025-03-15 01:57:59,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 1764 transitions. [2025-03-15 01:57:59,169 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.340080971659919 [2025-03-15 01:57:59,169 INFO L298 CegarLoopForPetriNet]: 137 programPoint places, 73 predicate places. [2025-03-15 01:57:59,169 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 203 transitions, 1061 flow [2025-03-15 01:57:59,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 43.55555555555556) internal successors, (1176), 27 states have internal predecessors, (1176), 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 01:57:59,170 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:57:59,170 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] [2025-03-15 01:57:59,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-15 01:57:59,170 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-03-15 01:57:59,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:57:59,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1487675549, now seen corresponding path program 1 times [2025-03-15 01:57:59,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:57:59,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845862034] [2025-03-15 01:57:59,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:57:59,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:57:59,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:58:00,357 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 01:58:00,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:58:00,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845862034] [2025-03-15 01:58:00,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845862034] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:58:00,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 01:58:00,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2025-03-15 01:58:00,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554890862] [2025-03-15 01:58:00,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:58:00,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-15 01:58:00,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:58:00,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-15 01:58:00,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2025-03-15 01:58:00,360 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 133 [2025-03-15 01:58:00,361 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 203 transitions, 1061 flow. Second operand has 24 states, 24 states have (on average 43.083333333333336) internal successors, (1034), 24 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:58:00,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:58:00,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 133 [2025-03-15 01:58:00,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:58:01,808 INFO L124 PetriNetUnfolderBase]: 253/816 cut-off events. [2025-03-15 01:58:01,808 INFO L125 PetriNetUnfolderBase]: For 615/640 co-relation queries the response was YES. [2025-03-15 01:58:01,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2404 conditions, 816 events. 253/816 cut-off events. For 615/640 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4231 event pairs, 8 based on Foata normal form. 0/800 useless extension candidates. Maximal degree in co-relation 2137. Up to 255 conditions per place. [2025-03-15 01:58:01,813 INFO L140 encePairwiseOnDemand]: 98/133 looper letters, 164 selfloop transitions, 36 changer transitions 42/279 dead transitions. [2025-03-15 01:58:01,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 279 transitions, 1999 flow [2025-03-15 01:58:01,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-03-15 01:58:01,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2025-03-15 01:58:01,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 1556 transitions. [2025-03-15 01:58:01,818 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.3440955329500221 [2025-03-15 01:58:01,818 INFO L298 CegarLoopForPetriNet]: 137 programPoint places, 105 predicate places. [2025-03-15 01:58:01,818 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 279 transitions, 1999 flow [2025-03-15 01:58:01,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 43.083333333333336) internal successors, (1034), 24 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:58:01,819 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 01:58:01,819 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] [2025-03-15 01:58:01,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-15 01:58:01,819 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2025-03-15 01:58:01,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 01:58:01,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1126698593, now seen corresponding path program 1 times [2025-03-15 01:58:01,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 01:58:01,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106352950] [2025-03-15 01:58:01,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 01:58:01,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 01:58:01,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 01:58:02,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 01:58:02,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 01:58:02,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106352950] [2025-03-15 01:58:02,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106352950] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 01:58:02,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 01:58:02,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2025-03-15 01:58:02,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098651715] [2025-03-15 01:58:02,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 01:58:02,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-15 01:58:02,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 01:58:02,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-15 01:58:02,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2025-03-15 01:58:02,851 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 133 [2025-03-15 01:58:02,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 279 transitions, 1999 flow. Second operand has 24 states, 24 states have (on average 43.125) internal successors, (1035), 24 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:58:02,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 01:58:02,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 133 [2025-03-15 01:58:02,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 01:58:04,071 INFO L124 PetriNetUnfolderBase]: 242/790 cut-off events. [2025-03-15 01:58:04,071 INFO L125 PetriNetUnfolderBase]: For 955/991 co-relation queries the response was YES. [2025-03-15 01:58:04,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2854 conditions, 790 events. 242/790 cut-off events. For 955/991 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4023 event pairs, 8 based on Foata normal form. 12/802 useless extension candidates. Maximal degree in co-relation 2523. Up to 244 conditions per place. [2025-03-15 01:58:04,075 INFO L140 encePairwiseOnDemand]: 98/133 looper letters, 0 selfloop transitions, 0 changer transitions 278/278 dead transitions. [2025-03-15 01:58:04,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 278 transitions, 2471 flow [2025-03-15 01:58:04,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-03-15 01:58:04,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2025-03-15 01:58:04,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 1555 transitions. [2025-03-15 01:58:04,080 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.34387439186200797 [2025-03-15 01:58:04,081 INFO L298 CegarLoopForPetriNet]: 137 programPoint places, 137 predicate places. [2025-03-15 01:58:04,081 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 278 transitions, 2471 flow [2025-03-15 01:58:04,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 43.125) internal successors, (1035), 24 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 01:58:04,088 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/09-regions_04-list2_nr.i_petrified1_AllErrorsAtOnce [2025-03-15 01:58:04,129 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2025-03-15 01:58:04,130 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2025-03-15 01:58:04,130 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2025-03-15 01:58:04,130 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2025-03-15 01:58:04,130 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 9 remaining) [2025-03-15 01:58:04,130 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2025-03-15 01:58:04,130 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2025-03-15 01:58:04,130 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2025-03-15 01:58:04,131 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2025-03-15 01:58:04,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-15 01:58:04,131 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-03-15 01:58:04,134 INFO L328 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-15 01:58:04,135 INFO L188 ceAbstractionStarter]: Computing trace abstraction results [2025-03-15 01:58:04,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 01:58:04 BasicIcfg [2025-03-15 01:58:04,138 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-15 01:58:04,139 INFO L158 Benchmark]: Toolchain (without parser) took 13067.36ms. Allocated memory was 71.3MB in the beginning and 369.1MB in the end (delta: 297.8MB). Free memory was 40.9MB in the beginning and 275.5MB in the end (delta: -234.7MB). Peak memory consumption was 247.8MB. Max. memory is 8.0GB. [2025-03-15 01:58:04,139 INFO L158 Benchmark]: CDTParser took 1.21ms. Allocated memory is still 71.3MB. Free memory was 35.9MB in the beginning and 35.8MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 01:58:04,139 INFO L158 Benchmark]: CACSL2BoogieTranslator took 462.93ms. Allocated memory is still 71.3MB. Free memory was 40.7MB in the beginning and 26.5MB in the end (delta: 14.2MB). Peak memory consumption was 30.9MB. Max. memory is 8.0GB. [2025-03-15 01:58:04,139 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.05ms. Allocated memory is still 71.3MB. Free memory was 26.5MB in the beginning and 24.1MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 01:58:04,142 INFO L158 Benchmark]: Boogie Preprocessor took 26.11ms. Allocated memory is still 71.3MB. Free memory was 24.1MB in the beginning and 22.6MB in the end (delta: 1.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-03-15 01:58:04,142 INFO L158 Benchmark]: RCFGBuilder took 418.54ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 22.3MB in the beginning and 39.7MB in the end (delta: -17.5MB). Peak memory consumption was 7.6MB. Max. memory is 8.0GB. [2025-03-15 01:58:04,142 INFO L158 Benchmark]: TraceAbstraction took 12106.97ms. Allocated memory was 88.1MB in the beginning and 369.1MB in the end (delta: 281.0MB). Free memory was 38.7MB in the beginning and 275.5MB in the end (delta: -236.8MB). Peak memory consumption was 228.5MB. Max. memory is 8.0GB. [2025-03-15 01:58:04,144 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.21ms. Allocated memory is still 71.3MB. Free memory was 35.9MB in the beginning and 35.8MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 462.93ms. Allocated memory is still 71.3MB. Free memory was 40.7MB in the beginning and 26.5MB in the end (delta: 14.2MB). Peak memory consumption was 30.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.05ms. Allocated memory is still 71.3MB. Free memory was 26.5MB in the beginning and 24.1MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 26.11ms. Allocated memory is still 71.3MB. Free memory was 24.1MB in the beginning and 22.6MB in the end (delta: 1.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 418.54ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 22.3MB in the beginning and 39.7MB in the end (delta: -17.5MB). Peak memory consumption was 7.6MB. Max. memory is 8.0GB. * TraceAbstraction took 12106.97ms. Allocated memory was 88.1MB in the beginning and 369.1MB in the end (delta: 281.0MB). Free memory was 38.7MB in the beginning and 275.5MB in the end (delta: -236.8MB). Peak memory consumption was 228.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1235]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1238]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1238]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 169 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 12.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 889 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 889 mSDsluCounter, 2532 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2303 mSDsCounter, 104 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5854 IncrementalHoareTripleChecker+Invalid, 5958 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 104 mSolverCounterUnsat, 229 mSDtfsCounter, 5854 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 218 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2474 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2471occurred in iteration=4, InterpolantAutomatonStates: 146, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 340 NumberOfCodeBlocks, 340 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 336 ConstructedInterpolants, 0 QuantifiedInterpolants, 6984 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-15 01:58:04,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...