/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/13-privatized_25-struct_nr_true.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.empire2-owicki-f61efc6-m [2025-03-15 02:07:20,396 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-15 02:07:20,489 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2025-03-15 02:07:20,512 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-15 02:07:20,513 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-15 02:07:20,513 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-15 02:07:20,513 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-15 02:07:20,513 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-15 02:07:20,513 INFO L153 SettingsManager]: * Use SBE=true [2025-03-15 02:07:20,514 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-15 02:07:20,514 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-15 02:07:20,514 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-15 02:07:20,514 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-15 02:07:20,514 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-15 02:07:20,514 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-15 02:07:20,514 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-15 02:07:20,514 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-15 02:07:20,515 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-15 02:07:20,515 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-15 02:07:20,515 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-15 02:07:20,515 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-15 02:07:20,515 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-15 02:07:20,515 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-15 02:07:20,515 INFO L153 SettingsManager]: * To the following directory=./dump/ [2025-03-15 02:07:20,515 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-15 02:07:20,515 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 02:07:20,515 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-15 02:07:20,515 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-15 02:07:20,515 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-15 02:07:20,516 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-15 02:07:20,516 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-15 02:07:20,516 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-15 02:07:20,516 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> ASSERTandASSUME [2025-03-15 02:07:20,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-15 02:07:20,786 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-15 02:07:20,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-15 02:07:20,789 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-15 02:07:20,789 INFO L274 PluginConnector]: CDTParser initialized [2025-03-15 02:07:20,792 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i [2025-03-15 02:07:21,981 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4f525c81/f3d3af83cb7d4c538926d3d8d5958934/FLAG2a850a5bc [2025-03-15 02:07:22,205 INFO L384 CDTParser]: Found 1 translation units. [2025-03-15 02:07:22,206 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i [2025-03-15 02:07:22,221 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4f525c81/f3d3af83cb7d4c538926d3d8d5958934/FLAG2a850a5bc [2025-03-15 02:07:22,532 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4f525c81/f3d3af83cb7d4c538926d3d8d5958934 [2025-03-15 02:07:22,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-15 02:07:22,535 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-03-15 02:07:22,536 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-15 02:07:22,536 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-15 02:07:22,539 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-15 02:07:22,540 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:07:22" (1/1) ... [2025-03-15 02:07:22,541 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79711433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:07:22, skipping insertion in model container [2025-03-15 02:07:22,541 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:07:22" (1/1) ... [2025-03-15 02:07:22,563 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-15 02:07:22,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 02:07:22,761 INFO L200 MainTranslator]: Completed pre-run [2025-03-15 02:07:22,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 02:07:22,829 INFO L204 MainTranslator]: Completed translation [2025-03-15 02:07:22,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:07:22 WrapperNode [2025-03-15 02:07:22,829 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-15 02:07:22,830 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-15 02:07:22,830 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-15 02:07:22,830 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-15 02:07:22,836 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:07:22" (1/1) ... [2025-03-15 02:07:22,852 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:07:22" (1/1) ... [2025-03-15 02:07:22,873 INFO L138 Inliner]: procedures = 162, calls = 22, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 87 [2025-03-15 02:07:22,874 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-15 02:07:22,874 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-15 02:07:22,874 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-15 02:07:22,874 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-15 02:07:22,880 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:07:22" (1/1) ... [2025-03-15 02:07:22,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:07:22" (1/1) ... [2025-03-15 02:07:22,884 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:07:22" (1/1) ... [2025-03-15 02:07:22,884 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:07:22" (1/1) ... [2025-03-15 02:07:22,892 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:07:22" (1/1) ... [2025-03-15 02:07:22,894 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:07:22" (1/1) ... [2025-03-15 02:07:22,895 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:07:22" (1/1) ... [2025-03-15 02:07:22,898 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:07:22" (1/1) ... [2025-03-15 02:07:22,899 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:07:22" (1/1) ... [2025-03-15 02:07:22,900 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-15 02:07:22,901 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-15 02:07:22,901 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-15 02:07:22,901 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-15 02:07:22,905 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:07:22" (1/1) ... [2025-03-15 02:07:22,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 02:07:22,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 02:07:22,934 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-03-15 02:07:22,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-03-15 02:07:22,965 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-15 02:07:22,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-15 02:07:22,965 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-15 02:07:22,965 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-15 02:07:22,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-15 02:07:22,965 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-15 02:07:22,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-15 02:07:22,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-15 02:07:22,966 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-15 02:07:23,047 INFO L234 CfgBuilder]: Building ICFG [2025-03-15 02:07:23,049 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-15 02:07:23,200 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-15 02:07:23,200 INFO L283 CfgBuilder]: Performing block encoding [2025-03-15 02:07:23,222 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-15 02:07:23,222 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-15 02:07:23,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:07:23 BoogieIcfgContainer [2025-03-15 02:07:23,223 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-15 02:07:23,226 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-15 02:07:23,226 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-15 02:07:23,231 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-15 02:07:23,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 02:07:22" (1/3) ... [2025-03-15 02:07:23,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72bafe54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:07:23, skipping insertion in model container [2025-03-15 02:07:23,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:07:22" (2/3) ... [2025-03-15 02:07:23,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72bafe54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:07:23, skipping insertion in model container [2025-03-15 02:07:23,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:07:23" (3/3) ... [2025-03-15 02:07:23,234 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_25-struct_nr_true.i [2025-03-15 02:07:23,245 INFO L303 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-15 02:07:23,246 INFO L169 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_25-struct_nr_true.i that has 2 procedures, 103 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-03-15 02:07:23,247 INFO L581 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-15 02:07:23,294 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-15 02:07:23,328 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-15 02:07:23,340 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;@19d15008, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-15 02:07:23,340 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-03-15 02:07:23,369 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-15 02:07:23,369 INFO L124 PetriNetUnfolderBase]: 2/45 cut-off events. [2025-03-15 02:07:23,373 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-15 02:07:23,373 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:07:23,374 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:07:23,374 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2025-03-15 02:07:23,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:07:23,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1963500389, now seen corresponding path program 1 times [2025-03-15 02:07:23,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:07:23,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57464123] [2025-03-15 02:07:23,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:07:23,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:07:23,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:07:23,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:07:23,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:07:23,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57464123] [2025-03-15 02:07:23,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57464123] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:07:23,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:07:23,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 02:07:23,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088395104] [2025-03-15 02:07:23,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:07:23,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 02:07:23,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:07:23,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 02:07:23,692 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 02:07:23,695 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 110 [2025-03-15 02:07:23,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 110 transitions, 227 flow. Second operand has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:07:23,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:07:23,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 110 [2025-03-15 02:07:23,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:07:23,968 INFO L124 PetriNetUnfolderBase]: 97/507 cut-off events. [2025-03-15 02:07:23,968 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-15 02:07:23,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 735 conditions, 507 events. 97/507 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2852 event pairs, 29 based on Foata normal form. 76/524 useless extension candidates. Maximal degree in co-relation 688. Up to 111 conditions per place. [2025-03-15 02:07:23,982 INFO L140 encePairwiseOnDemand]: 93/110 looper letters, 36 selfloop transitions, 10 changer transitions 16/123 dead transitions. [2025-03-15 02:07:23,982 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 123 transitions, 360 flow [2025-03-15 02:07:23,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-15 02:07:23,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-15 02:07:23,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 446 transitions. [2025-03-15 02:07:23,995 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8109090909090909 [2025-03-15 02:07:23,998 INFO L298 CegarLoopForPetriNet]: 106 programPoint places, -5 predicate places. [2025-03-15 02:07:23,998 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 123 transitions, 360 flow [2025-03-15 02:07:23,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:07:23,998 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:07:23,999 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] [2025-03-15 02:07:23,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-15 02:07:23,999 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2025-03-15 02:07:23,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:07:24,000 INFO L85 PathProgramCache]: Analyzing trace with hash -738969632, now seen corresponding path program 1 times [2025-03-15 02:07:24,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:07:24,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249440555] [2025-03-15 02:07:24,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:07:24,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:07:24,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:07:24,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:07:24,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:07:24,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249440555] [2025-03-15 02:07:24,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249440555] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:07:24,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:07:24,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 02:07:24,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969163187] [2025-03-15 02:07:24,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:07:24,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 02:07:24,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:07:24,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 02:07:24,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 02:07:24,133 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 110 [2025-03-15 02:07:24,134 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 123 transitions, 360 flow. Second operand has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:07:24,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:07:24,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 110 [2025-03-15 02:07:24,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:07:24,298 INFO L124 PetriNetUnfolderBase]: 102/538 cut-off events. [2025-03-15 02:07:24,298 INFO L125 PetriNetUnfolderBase]: For 68/124 co-relation queries the response was YES. [2025-03-15 02:07:24,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1025 conditions, 538 events. 102/538 cut-off events. For 68/124 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3107 event pairs, 8 based on Foata normal form. 8/492 useless extension candidates. Maximal degree in co-relation 971. Up to 143 conditions per place. [2025-03-15 02:07:24,302 INFO L140 encePairwiseOnDemand]: 101/110 looper letters, 59 selfloop transitions, 16 changer transitions 18/154 dead transitions. [2025-03-15 02:07:24,302 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 154 transitions, 654 flow [2025-03-15 02:07:24,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-15 02:07:24,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-15 02:07:24,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 428 transitions. [2025-03-15 02:07:24,306 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7781818181818182 [2025-03-15 02:07:24,306 INFO L298 CegarLoopForPetriNet]: 106 programPoint places, -1 predicate places. [2025-03-15 02:07:24,306 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 154 transitions, 654 flow [2025-03-15 02:07:24,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:07:24,307 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:07:24,307 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] [2025-03-15 02:07:24,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-15 02:07:24,307 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2025-03-15 02:07:24,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:07:24,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1126164276, now seen corresponding path program 1 times [2025-03-15 02:07:24,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:07:24,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067601053] [2025-03-15 02:07:24,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:07:24,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:07:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:07:24,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:07:24,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:07:24,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067601053] [2025-03-15 02:07:24,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067601053] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:07:24,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:07:24,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 02:07:24,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278823421] [2025-03-15 02:07:24,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:07:24,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 02:07:24,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:07:24,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 02:07:24,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-15 02:07:24,444 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 110 [2025-03-15 02:07:24,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 154 transitions, 654 flow. Second operand has 6 states, 6 states have (on average 71.16666666666667) internal successors, (427), 6 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:07:24,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:07:24,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 110 [2025-03-15 02:07:24,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:07:24,649 INFO L124 PetriNetUnfolderBase]: 167/693 cut-off events. [2025-03-15 02:07:24,650 INFO L125 PetriNetUnfolderBase]: For 341/461 co-relation queries the response was YES. [2025-03-15 02:07:24,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1719 conditions, 693 events. 167/693 cut-off events. For 341/461 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4184 event pairs, 19 based on Foata normal form. 12/637 useless extension candidates. Maximal degree in co-relation 1646. Up to 206 conditions per place. [2025-03-15 02:07:24,653 INFO L140 encePairwiseOnDemand]: 98/110 looper letters, 74 selfloop transitions, 19 changer transitions 37/187 dead transitions. [2025-03-15 02:07:24,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 187 transitions, 1069 flow [2025-03-15 02:07:24,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-15 02:07:24,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-15 02:07:24,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 782 transitions. [2025-03-15 02:07:24,656 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7109090909090909 [2025-03-15 02:07:24,656 INFO L298 CegarLoopForPetriNet]: 106 programPoint places, 8 predicate places. [2025-03-15 02:07:24,656 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 187 transitions, 1069 flow [2025-03-15 02:07:24,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.16666666666667) internal successors, (427), 6 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:07:24,657 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:07:24,657 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:07:24,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-15 02:07:24,657 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2025-03-15 02:07:24,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:07:24,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1878193074, now seen corresponding path program 1 times [2025-03-15 02:07:24,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:07:24,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115575454] [2025-03-15 02:07:24,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:07:24,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:07:24,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:07:24,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:07:24,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:07:24,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115575454] [2025-03-15 02:07:24,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115575454] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:07:24,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:07:24,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 02:07:24,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486911293] [2025-03-15 02:07:24,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:07:24,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-15 02:07:24,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:07:24,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-15 02:07:24,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-15 02:07:24,762 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 110 [2025-03-15 02:07:24,763 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 187 transitions, 1069 flow. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:07:24,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:07:24,763 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 110 [2025-03-15 02:07:24,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:07:24,802 INFO L124 PetriNetUnfolderBase]: 1/141 cut-off events. [2025-03-15 02:07:24,802 INFO L125 PetriNetUnfolderBase]: For 123/123 co-relation queries the response was YES. [2025-03-15 02:07:24,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 295 conditions, 141 events. 1/141 cut-off events. For 123/123 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 185 event pairs, 0 based on Foata normal form. 18/147 useless extension candidates. Maximal degree in co-relation 225. Up to 26 conditions per place. [2025-03-15 02:07:24,804 INFO L140 encePairwiseOnDemand]: 106/110 looper letters, 7 selfloop transitions, 4 changer transitions 29/110 dead transitions. [2025-03-15 02:07:24,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 110 transitions, 496 flow [2025-03-15 02:07:24,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-15 02:07:24,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-15 02:07:24,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 272 transitions. [2025-03-15 02:07:24,805 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8242424242424242 [2025-03-15 02:07:24,806 INFO L298 CegarLoopForPetriNet]: 106 programPoint places, 10 predicate places. [2025-03-15 02:07:24,806 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 110 transitions, 496 flow [2025-03-15 02:07:24,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:07:24,806 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:07:24,806 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:07:24,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-15 02:07:24,807 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2025-03-15 02:07:24,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:07:24,807 INFO L85 PathProgramCache]: Analyzing trace with hash 551354412, now seen corresponding path program 1 times [2025-03-15 02:07:24,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:07:24,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078931179] [2025-03-15 02:07:24,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:07:24,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:07:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:07:24,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:07:24,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:07:24,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078931179] [2025-03-15 02:07:24,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078931179] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:07:24,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:07:24,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 02:07:24,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728303539] [2025-03-15 02:07:24,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:07:24,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 02:07:24,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:07:24,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 02:07:24,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-15 02:07:24,887 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 110 [2025-03-15 02:07:24,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 110 transitions, 496 flow. Second operand has 6 states, 6 states have (on average 71.33333333333333) internal successors, (428), 6 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:07:24,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:07:24,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 110 [2025-03-15 02:07:24,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:07:24,994 INFO L124 PetriNetUnfolderBase]: 1/140 cut-off events. [2025-03-15 02:07:24,994 INFO L125 PetriNetUnfolderBase]: For 148/148 co-relation queries the response was YES. [2025-03-15 02:07:24,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 342 conditions, 140 events. 1/140 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 181 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 265. Up to 26 conditions per place. [2025-03-15 02:07:24,994 INFO L140 encePairwiseOnDemand]: 99/110 looper letters, 19 selfloop transitions, 4 changer transitions 38/109 dead transitions. [2025-03-15 02:07:24,994 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 109 transitions, 582 flow [2025-03-15 02:07:24,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-15 02:07:24,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-15 02:07:24,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 733 transitions. [2025-03-15 02:07:24,996 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6663636363636364 [2025-03-15 02:07:24,996 INFO L298 CegarLoopForPetriNet]: 106 programPoint places, 19 predicate places. [2025-03-15 02:07:24,996 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 109 transitions, 582 flow [2025-03-15 02:07:24,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.33333333333333) internal successors, (428), 6 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:07:24,997 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:07:24,997 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] [2025-03-15 02:07:24,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-15 02:07:24,997 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2025-03-15 02:07:24,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:07:24,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1721042636, now seen corresponding path program 1 times [2025-03-15 02:07:24,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:07:24,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259759815] [2025-03-15 02:07:24,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:07:24,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:07:25,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:07:25,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:07:25,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:07:25,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259759815] [2025-03-15 02:07:25,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259759815] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:07:25,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:07:25,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-15 02:07:25,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978993266] [2025-03-15 02:07:25,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:07:25,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 02:07:25,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:07:25,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 02:07:25,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-15 02:07:25,112 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 110 [2025-03-15 02:07:25,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 109 transitions, 582 flow. Second operand has 5 states, 5 states have (on average 75.0) internal successors, (375), 5 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:07:25,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:07:25,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 110 [2025-03-15 02:07:25,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:07:25,221 INFO L124 PetriNetUnfolderBase]: 10/179 cut-off events. [2025-03-15 02:07:25,221 INFO L125 PetriNetUnfolderBase]: For 324/324 co-relation queries the response was YES. [2025-03-15 02:07:25,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 500 conditions, 179 events. 10/179 cut-off events. For 324/324 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 332 event pairs, 4 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 399. Up to 32 conditions per place. [2025-03-15 02:07:25,222 INFO L140 encePairwiseOnDemand]: 102/110 looper letters, 15 selfloop transitions, 6 changer transitions 46/116 dead transitions. [2025-03-15 02:07:25,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 116 transitions, 727 flow [2025-03-15 02:07:25,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-15 02:07:25,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-15 02:07:25,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 551 transitions. [2025-03-15 02:07:25,227 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7155844155844155 [2025-03-15 02:07:25,228 INFO L298 CegarLoopForPetriNet]: 106 programPoint places, 23 predicate places. [2025-03-15 02:07:25,228 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 116 transitions, 727 flow [2025-03-15 02:07:25,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.0) internal successors, (375), 5 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:07:25,228 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:07:25,228 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] [2025-03-15 02:07:25,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-15 02:07:25,229 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2025-03-15 02:07:25,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:07:25,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1812714447, now seen corresponding path program 1 times [2025-03-15 02:07:25,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:07:25,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473088876] [2025-03-15 02:07:25,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:07:25,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:07:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:07:25,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:07:25,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:07:25,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473088876] [2025-03-15 02:07:25,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473088876] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:07:25,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:07:25,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-15 02:07:25,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036053580] [2025-03-15 02:07:25,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:07:25,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 02:07:25,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:07:25,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 02:07:25,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-15 02:07:25,338 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 110 [2025-03-15 02:07:25,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 116 transitions, 727 flow. Second operand has 5 states, 5 states have (on average 75.2) internal successors, (376), 5 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:07:25,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:07:25,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 110 [2025-03-15 02:07:25,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:07:25,437 INFO L124 PetriNetUnfolderBase]: 10/178 cut-off events. [2025-03-15 02:07:25,437 INFO L125 PetriNetUnfolderBase]: For 451/453 co-relation queries the response was YES. [2025-03-15 02:07:25,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 558 conditions, 178 events. 10/178 cut-off events. For 451/453 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 334 event pairs, 1 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 448. Up to 31 conditions per place. [2025-03-15 02:07:25,438 INFO L140 encePairwiseOnDemand]: 102/110 looper letters, 15 selfloop transitions, 5 changer transitions 48/117 dead transitions. [2025-03-15 02:07:25,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 117 transitions, 817 flow [2025-03-15 02:07:25,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-15 02:07:25,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-15 02:07:25,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 695 transitions. [2025-03-15 02:07:25,443 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.702020202020202 [2025-03-15 02:07:25,443 INFO L298 CegarLoopForPetriNet]: 106 programPoint places, 28 predicate places. [2025-03-15 02:07:25,443 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 117 transitions, 817 flow [2025-03-15 02:07:25,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.2) internal successors, (376), 5 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:07:25,444 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:07:25,444 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] [2025-03-15 02:07:25,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-15 02:07:25,444 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2025-03-15 02:07:25,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:07:25,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1681171555, now seen corresponding path program 1 times [2025-03-15 02:07:25,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:07:25,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709469393] [2025-03-15 02:07:25,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:07:25,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:07:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:07:25,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:07:25,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:07:25,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709469393] [2025-03-15 02:07:25,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709469393] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:07:25,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:07:25,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-15 02:07:25,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044125404] [2025-03-15 02:07:25,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:07:25,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-15 02:07:25,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:07:25,572 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-15 02:07:25,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-15 02:07:25,572 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 110 [2025-03-15 02:07:25,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 117 transitions, 817 flow. Second operand has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:07:25,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:07:25,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 110 [2025-03-15 02:07:25,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:07:25,752 INFO L124 PetriNetUnfolderBase]: 13/180 cut-off events. [2025-03-15 02:07:25,753 INFO L125 PetriNetUnfolderBase]: For 598/602 co-relation queries the response was YES. [2025-03-15 02:07:25,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 641 conditions, 180 events. 13/180 cut-off events. For 598/602 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 339 event pairs, 1 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 522. Up to 31 conditions per place. [2025-03-15 02:07:25,753 INFO L140 encePairwiseOnDemand]: 99/110 looper letters, 14 selfloop transitions, 8 changer transitions 50/118 dead transitions. [2025-03-15 02:07:25,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 118 transitions, 935 flow [2025-03-15 02:07:25,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-15 02:07:25,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-15 02:07:25,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1052 transitions. [2025-03-15 02:07:25,757 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6375757575757576 [2025-03-15 02:07:25,759 INFO L298 CegarLoopForPetriNet]: 106 programPoint places, 40 predicate places. [2025-03-15 02:07:25,759 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 118 transitions, 935 flow [2025-03-15 02:07:25,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:07:25,759 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 02:07:25,759 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] [2025-03-15 02:07:25,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-15 02:07:25,759 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2025-03-15 02:07:25,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 02:07:25,760 INFO L85 PathProgramCache]: Analyzing trace with hash 576710877, now seen corresponding path program 1 times [2025-03-15 02:07:25,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 02:07:25,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529326798] [2025-03-15 02:07:25,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 02:07:25,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 02:07:25,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 02:07:25,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 02:07:25,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 02:07:25,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529326798] [2025-03-15 02:07:25,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529326798] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 02:07:25,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 02:07:25,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-15 02:07:25,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842552104] [2025-03-15 02:07:25,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 02:07:25,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-15 02:07:25,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 02:07:25,896 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-15 02:07:25,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-15 02:07:25,897 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 110 [2025-03-15 02:07:25,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 118 transitions, 935 flow. Second operand has 7 states, 7 states have (on average 70.14285714285714) internal successors, (491), 7 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:07:25,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 02:07:25,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 110 [2025-03-15 02:07:25,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 02:07:26,097 INFO L124 PetriNetUnfolderBase]: 13/179 cut-off events. [2025-03-15 02:07:26,097 INFO L125 PetriNetUnfolderBase]: For 758/764 co-relation queries the response was YES. [2025-03-15 02:07:26,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 713 conditions, 179 events. 13/179 cut-off events. For 758/764 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 333 event pairs, 1 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 585. Up to 31 conditions per place. [2025-03-15 02:07:26,098 INFO L140 encePairwiseOnDemand]: 101/110 looper letters, 0 selfloop transitions, 0 changer transitions 117/117 dead transitions. [2025-03-15 02:07:26,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 117 transitions, 1037 flow [2025-03-15 02:07:26,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-15 02:07:26,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-15 02:07:26,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 984 transitions. [2025-03-15 02:07:26,101 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.638961038961039 [2025-03-15 02:07:26,102 INFO L298 CegarLoopForPetriNet]: 106 programPoint places, 51 predicate places. [2025-03-15 02:07:26,102 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 117 transitions, 1037 flow [2025-03-15 02:07:26,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.14285714285714) internal successors, (491), 7 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 02:07:26,111 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/13-privatized_25-struct_nr_true.i_petrified1_AllErrorsAtOnce [2025-03-15 02:07:26,142 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 5 remaining) [2025-03-15 02:07:26,142 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 5 remaining) [2025-03-15 02:07:26,142 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 5 remaining) [2025-03-15 02:07:26,142 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 5 remaining) [2025-03-15 02:07:26,142 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-03-15 02:07:26,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-15 02:07:26,143 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 02:07:26,146 INFO L328 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-15 02:07:26,146 INFO L188 ceAbstractionStarter]: Computing trace abstraction results [2025-03-15 02:07:26,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 02:07:26 BasicIcfg [2025-03-15 02:07:26,151 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-15 02:07:26,152 INFO L158 Benchmark]: Toolchain (without parser) took 3616.97ms. Allocated memory was 71.3MB in the beginning and 109.1MB in the end (delta: 37.7MB). Free memory was 43.3MB in the beginning and 51.4MB in the end (delta: -8.2MB). Peak memory consumption was 26.6MB. Max. memory is 8.0GB. [2025-03-15 02:07:26,152 INFO L158 Benchmark]: CDTParser took 1.73ms. Allocated memory is still 71.3MB. Free memory is still 33.8MB. There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 02:07:26,152 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.59ms. Allocated memory is still 71.3MB. Free memory was 43.1MB in the beginning and 24.0MB in the end (delta: 19.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-03-15 02:07:26,153 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.78ms. Allocated memory is still 71.3MB. Free memory was 24.0MB in the beginning and 22.2MB in the end (delta: 1.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-03-15 02:07:26,154 INFO L158 Benchmark]: Boogie Preprocessor took 25.99ms. Allocated memory is still 71.3MB. Free memory was 22.2MB in the beginning and 21.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 02:07:26,154 INFO L158 Benchmark]: RCFGBuilder took 321.81ms. Allocated memory is still 71.3MB. Free memory was 21.1MB in the beginning and 33.7MB in the end (delta: -12.5MB). Peak memory consumption was 7.0MB. Max. memory is 8.0GB. [2025-03-15 02:07:26,154 INFO L158 Benchmark]: TraceAbstraction took 2925.66ms. Allocated memory was 71.3MB in the beginning and 109.1MB in the end (delta: 37.7MB). Free memory was 32.3MB in the beginning and 51.4MB in the end (delta: -19.1MB). Peak memory consumption was 15.5MB. Max. memory is 8.0GB. [2025-03-15 02:07:26,159 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.73ms. Allocated memory is still 71.3MB. Free memory is still 33.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 293.59ms. Allocated memory is still 71.3MB. Free memory was 43.1MB in the beginning and 24.0MB in the end (delta: 19.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.78ms. Allocated memory is still 71.3MB. Free memory was 24.0MB in the beginning and 22.2MB in the end (delta: 1.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.99ms. Allocated memory is still 71.3MB. Free memory was 22.2MB in the beginning and 21.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 321.81ms. Allocated memory is still 71.3MB. Free memory was 21.1MB in the beginning and 33.7MB in the end (delta: -12.5MB). Peak memory consumption was 7.0MB. Max. memory is 8.0GB. * TraceAbstraction took 2925.66ms. Allocated memory was 71.3MB in the beginning and 109.1MB in the end (delta: 37.7MB). Free memory was 32.3MB in the beginning and 51.4MB in the end (delta: -19.1MB). Peak memory consumption was 15.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 704]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 704]: 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, 138 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.8s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 270 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 270 mSDsluCounter, 288 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 173 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 747 IncrementalHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 115 mSDtfsCounter, 747 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1069occurred in iteration=3, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 437 NumberOfCodeBlocks, 437 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 428 ConstructedInterpolants, 0 QuantifiedInterpolants, 1118 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 02:07:26,178 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...