/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 ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf -i ../../../trunk/examples/svcomp/pthread/stack_longer-2.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-dev-4cc0a57-m [2025-04-14 10:38:59,280 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-14 10:38:59,323 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-14 10:38:59,328 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-14 10:38:59,328 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-14 10:38:59,341 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-14 10:38:59,342 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-14 10:38:59,342 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-14 10:38:59,342 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-14 10:38:59,342 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-14 10:38:59,342 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-14 10:38:59,342 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-14 10:38:59,342 INFO L153 SettingsManager]: * Use SBE=true [2025-04-14 10:38:59,342 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-14 10:38:59,342 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-14 10:38:59,343 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-14 10:38:59,343 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-14 10:38:59,343 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-14 10:38:59,343 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-14 10:38:59,343 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-14 10:38:59,343 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-14 10:38:59,343 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-14 10:38:59,343 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-14 10:38:59,343 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-14 10:38:59,343 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-14 10:38:59,343 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-14 10:38:59,343 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-14 10:38:59,343 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 10:38:59,343 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 10:38:59,343 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 10:38:59,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 10:38:59,345 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-14 10:38:59,345 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 10:38:59,345 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 10:38:59,345 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 10:38:59,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 10:38:59,346 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-14 10:38:59,346 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-14 10:38:59,346 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-14 10:38:59,346 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-14 10:38:59,346 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-14 10:38:59,346 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-14 10:38:59,346 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-14 10:38:59,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-14 10:38:59,346 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-14 10:38:59,346 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-14 10:38:59,346 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-14 10:38:59,346 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-14 10:38:59,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-14 10:38:59,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-14 10:38:59,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-14 10:38:59,560 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-14 10:38:59,561 INFO L274 PluginConnector]: CDTParser initialized [2025-04-14 10:38:59,563 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack_longer-2.i [2025-04-14 10:39:00,871 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d820e0dd/b43c4690becb40f49c47142112994ef7/FLAG73f4d2aa7 [2025-04-14 10:39:01,114 INFO L389 CDTParser]: Found 1 translation units. [2025-04-14 10:39:01,117 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longer-2.i [2025-04-14 10:39:01,131 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d820e0dd/b43c4690becb40f49c47142112994ef7/FLAG73f4d2aa7 [2025-04-14 10:39:01,922 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d820e0dd/b43c4690becb40f49c47142112994ef7 [2025-04-14 10:39:01,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-14 10:39:01,925 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-14 10:39:01,926 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-14 10:39:01,926 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-14 10:39:01,929 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-14 10:39:01,930 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 10:39:01" (1/1) ... [2025-04-14 10:39:01,931 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bccc917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:39:01, skipping insertion in model container [2025-04-14 10:39:01,931 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 10:39:01" (1/1) ... [2025-04-14 10:39:01,961 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-14 10:39:02,321 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longer-2.i[41529,41542] [2025-04-14 10:39:02,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 10:39:02,376 INFO L200 MainTranslator]: Completed pre-run [2025-04-14 10:39:02,438 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longer-2.i[41529,41542] [2025-04-14 10:39:02,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 10:39:02,525 INFO L204 MainTranslator]: Completed translation [2025-04-14 10:39:02,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:39:02 WrapperNode [2025-04-14 10:39:02,526 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-14 10:39:02,527 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-14 10:39:02,527 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-14 10:39:02,527 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-14 10:39:02,531 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:39:02" (1/1) ... [2025-04-14 10:39:02,546 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:39:02" (1/1) ... [2025-04-14 10:39:02,580 INFO L138 Inliner]: procedures = 277, calls = 430, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 539 [2025-04-14 10:39:02,581 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-14 10:39:02,581 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-14 10:39:02,581 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-14 10:39:02,582 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-14 10:39:02,587 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:39:02" (1/1) ... [2025-04-14 10:39:02,587 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:39:02" (1/1) ... [2025-04-14 10:39:02,595 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:39:02" (1/1) ... [2025-04-14 10:39:02,596 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:39:02" (1/1) ... [2025-04-14 10:39:02,618 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:39:02" (1/1) ... [2025-04-14 10:39:02,619 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:39:02" (1/1) ... [2025-04-14 10:39:02,626 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:39:02" (1/1) ... [2025-04-14 10:39:02,628 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:39:02" (1/1) ... [2025-04-14 10:39:02,629 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:39:02" (1/1) ... [2025-04-14 10:39:02,642 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-14 10:39:02,642 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-14 10:39:02,642 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-14 10:39:02,643 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-14 10:39:02,643 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:39:02" (1/1) ... [2025-04-14 10:39:02,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 10:39:02,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 10:39:02,670 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-14 10:39:02,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-14 10:39:02,690 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2025-04-14 10:39:02,691 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2025-04-14 10:39:02,691 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2025-04-14 10:39:02,691 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2025-04-14 10:39:02,691 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-14 10:39:02,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-04-14 10:39:02,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-14 10:39:02,691 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-14 10:39:02,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-14 10:39:02,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-14 10:39:02,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-14 10:39:02,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-14 10:39:02,692 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-14 10:39:02,802 INFO L234 CfgBuilder]: Building ICFG [2025-04-14 10:39:02,803 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-14 10:39:03,457 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-14 10:39:03,458 INFO L283 CfgBuilder]: Performing block encoding [2025-04-14 10:39:06,735 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-14 10:39:06,736 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-14 10:39:06,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 10:39:06 BoogieIcfgContainer [2025-04-14 10:39:06,736 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-14 10:39:06,741 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-14 10:39:06,741 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-14 10:39:06,744 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-14 10:39:06,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.04 10:39:01" (1/3) ... [2025-04-14 10:39:06,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fbe3467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 10:39:06, skipping insertion in model container [2025-04-14 10:39:06,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:39:02" (2/3) ... [2025-04-14 10:39:06,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fbe3467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 10:39:06, skipping insertion in model container [2025-04-14 10:39:06,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 10:39:06" (3/3) ... [2025-04-14 10:39:06,748 INFO L128 eAbstractionObserver]: Analyzing ICFG stack_longer-2.i [2025-04-14 10:39:06,760 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-14 10:39:06,763 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG stack_longer-2.i that has 3 procedures, 30 locations, 32 edges, 1 initial locations, 2 loop locations, and 2 error locations. [2025-04-14 10:39:06,763 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-14 10:39:06,827 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-14 10:39:06,864 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 10:39:06,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-14 10:39:06,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 10:39:06,868 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-14 10:39:06,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-14 10:39:06,937 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-14 10:39:06,949 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Thread1of1ForFork1 ======== [2025-04-14 10:39:06,956 INFO L340 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=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@1cc69ac9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 10:39:06,956 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-04-14 10:39:07,171 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-14 10:39:07,171 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 10:39:07,171 INFO L139 ounterexampleChecker]: Examining path program with hash 1039645209, occurence #1 [2025-04-14 10:39:07,171 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 10:39:07,171 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 10:39:07,174 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 10:39:07,175 INFO L85 PathProgramCache]: Analyzing trace with hash -858411651, now seen corresponding path program 1 times [2025-04-14 10:39:07,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 10:39:07,181 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269218016] [2025-04-14 10:39:07,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 10:39:07,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 10:39:07,266 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-14 10:39:07,374 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-14 10:39:07,374 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 10:39:07,377 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 10:39:07,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 10:39:07,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 10:39:07,791 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269218016] [2025-04-14 10:39:07,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269218016] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 10:39:07,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 10:39:07,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-14 10:39:07,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171496924] [2025-04-14 10:39:07,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 10:39:07,795 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-14 10:39:07,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 10:39:07,815 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-14 10:39:07,815 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-14 10:39:07,816 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 10:39:07,817 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 10:39:07,819 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2025-04-14 10:39:07,819 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 10:39:08,175 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 10:39:08,176 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-14 10:39:08,176 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-14 10:39:08,176 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 10:39:08,176 INFO L139 ounterexampleChecker]: Examining path program with hash 1898228608, occurence #1 [2025-04-14 10:39:08,176 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 10:39:08,176 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 10:39:08,176 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 10:39:08,176 INFO L85 PathProgramCache]: Analyzing trace with hash -852390286, now seen corresponding path program 1 times [2025-04-14 10:39:08,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 10:39:08,177 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934514308] [2025-04-14 10:39:08,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 10:39:08,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 10:39:08,206 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-04-14 10:39:08,229 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-04-14 10:39:08,229 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 10:39:08,229 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 10:39:08,433 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 10:39:08,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 10:39:08,433 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934514308] [2025-04-14 10:39:08,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934514308] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 10:39:08,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 10:39:08,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-14 10:39:08,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816508706] [2025-04-14 10:39:08,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 10:39:08,435 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-14 10:39:08,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 10:39:08,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-14 10:39:08,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-14 10:39:08,436 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 10:39:08,436 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 10:39:08,436 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2025-04-14 10:39:08,436 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 10:39:08,436 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 10:39:08,517 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 10:39:08,518 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 10:39:08,518 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-14 10:39:08,518 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-14 10:39:08,518 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 10:39:08,518 INFO L139 ounterexampleChecker]: Examining path program with hash -1300197478, occurence #1 [2025-04-14 10:39:08,518 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 10:39:08,518 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 10:39:08,519 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 10:39:08,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1806552881, now seen corresponding path program 1 times [2025-04-14 10:39:08,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 10:39:08,519 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001784514] [2025-04-14 10:39:08,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 10:39:08,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 10:39:08,545 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-04-14 10:39:08,563 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-04-14 10:39:08,563 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 10:39:08,563 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 10:39:08,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 10:39:08,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 10:39:08,772 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001784514] [2025-04-14 10:39:08,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001784514] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 10:39:08,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 10:39:08,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-14 10:39:08,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504227211] [2025-04-14 10:39:08,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 10:39:08,773 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-14 10:39:08,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 10:39:08,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-14 10:39:08,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-14 10:39:08,773 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 10:39:08,773 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 10:39:08,773 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2025-04-14 10:39:08,773 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 10:39:08,773 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 10:39:08,773 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 10:39:08,836 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 10:39:08,836 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 10:39:08,836 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 10:39:08,837 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-14 10:39:08,837 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-14 10:39:08,837 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 10:39:08,837 INFO L139 ounterexampleChecker]: Examining path program with hash -1118055077, occurence #1 [2025-04-14 10:39:08,837 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 10:39:08,837 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 10:39:08,837 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 10:39:08,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1067933597, now seen corresponding path program 1 times [2025-04-14 10:39:08,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 10:39:08,838 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305184184] [2025-04-14 10:39:08,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 10:39:08,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 10:39:08,855 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-14 10:39:08,872 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-14 10:39:08,873 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 10:39:08,873 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 10:39:09,219 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 10:39:09,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 10:39:09,220 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305184184] [2025-04-14 10:39:09,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305184184] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 10:39:09,220 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756657122] [2025-04-14 10:39:09,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 10:39:09,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 10:39:09,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 10:39:09,222 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 10:39:09,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-14 10:39:09,294 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-14 10:39:09,411 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-14 10:39:09,411 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 10:39:09,411 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 10:39:09,415 INFO L256 TraceCheckSpWp]: Trace formula consists of 967 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-04-14 10:39:09,421 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 10:39:09,466 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:09,703 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 10:39:09,703 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 10:39:09,760 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 10:39:09,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756657122] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 10:39:09,760 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 10:39:09,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-04-14 10:39:09,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826618443] [2025-04-14 10:39:09,761 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 10:39:09,761 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-04-14 10:39:09,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 10:39:09,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-04-14 10:39:09,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2025-04-14 10:39:09,763 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 10:39:09,763 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 10:39:09,764 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 10 states have internal predecessors, (69), 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) [2025-04-14 10:39:09,764 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 10:39:09,764 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 10:39:09,764 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 10:39:09,764 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 10:39:10,029 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 10:39:10,029 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 10:39:10,029 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 10:39:10,030 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-14 10:39:10,039 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-04-14 10:39:10,231 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2025-04-14 10:39:10,231 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-14 10:39:10,231 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 10:39:10,232 INFO L139 ounterexampleChecker]: Examining path program with hash -289913407, occurence #1 [2025-04-14 10:39:10,232 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 10:39:10,232 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 10:39:10,232 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 10:39:10,232 INFO L85 PathProgramCache]: Analyzing trace with hash 953415162, now seen corresponding path program 1 times [2025-04-14 10:39:10,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 10:39:10,232 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662568182] [2025-04-14 10:39:10,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 10:39:10,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 10:39:10,270 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-04-14 10:39:10,304 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-04-14 10:39:10,305 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 10:39:10,305 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 10:39:10,837 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 5 proven. 27 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-04-14 10:39:10,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 10:39:10,838 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662568182] [2025-04-14 10:39:10,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662568182] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 10:39:10,838 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64591793] [2025-04-14 10:39:10,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 10:39:10,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 10:39:10,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 10:39:10,840 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 10:39:10,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-14 10:39:10,922 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-04-14 10:39:11,043 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-04-14 10:39:11,043 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 10:39:11,043 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 10:39:11,048 INFO L256 TraceCheckSpWp]: Trace formula consists of 1184 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-04-14 10:39:11,051 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 10:39:11,068 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:11,105 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:11,145 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:11,181 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 5 proven. 27 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-04-14 10:39:11,182 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 10:39:11,353 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 5 proven. 27 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-04-14 10:39:11,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64591793] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 10:39:11,353 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 10:39:11,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2025-04-14 10:39:11,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663113879] [2025-04-14 10:39:11,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 10:39:11,354 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-04-14 10:39:11,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 10:39:11,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-04-14 10:39:11,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2025-04-14 10:39:11,354 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 10:39:11,355 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 10:39:11,355 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 14 states have internal predecessors, (88), 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) [2025-04-14 10:39:11,355 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 10:39:11,355 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 10:39:11,355 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 10:39:11,355 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-14 10:39:11,355 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 10:39:11,731 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 10:39:11,731 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 10:39:11,731 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 10:39:11,731 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-14 10:39:11,732 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-04-14 10:39:11,739 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-04-14 10:39:11,936 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 10:39:11,936 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-14 10:39:11,936 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 10:39:11,936 INFO L139 ounterexampleChecker]: Examining path program with hash -289913407, occurence #2 [2025-04-14 10:39:11,936 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 10:39:11,937 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-04-14 10:39:11,945 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 10:39:11,946 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-14 10:39:11,946 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 10:39:11,946 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-04-14 10:39:11,946 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:11,946 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-04-14 10:39:11,960 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:11,960 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 84 [2025-04-14 10:39:11,960 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:11,960 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 90 [2025-04-14 10:39:11,960 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:11,960 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 96 [2025-04-14 10:39:11,961 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:11,961 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 102 [2025-04-14 10:39:11,961 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:11,961 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 108 [2025-04-14 10:39:11,961 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:11,961 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 114 [2025-04-14 10:39:11,961 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:11,961 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 120 [2025-04-14 10:39:11,961 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:11,961 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 126 [2025-04-14 10:39:11,961 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:11,961 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 10:39:11,961 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 10:39:11,961 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 10:39:11,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1403899351, now seen corresponding path program 2 times [2025-04-14 10:39:11,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 10:39:11,962 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370786441] [2025-04-14 10:39:11,962 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 10:39:11,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 10:39:12,003 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 132 statements into 2 equivalence classes. [2025-04-14 10:39:12,074 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 132 of 132 statements. [2025-04-14 10:39:12,074 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-14 10:39:12,074 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 10:39:13,092 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 9 proven. 192 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2025-04-14 10:39:13,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 10:39:13,092 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370786441] [2025-04-14 10:39:13,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370786441] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 10:39:13,092 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946056008] [2025-04-14 10:39:13,093 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 10:39:13,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 10:39:13,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 10:39:13,094 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 10:39:13,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-04-14 10:39:13,202 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 132 statements into 2 equivalence classes. [2025-04-14 10:39:13,342 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 132 of 132 statements. [2025-04-14 10:39:13,342 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-14 10:39:13,342 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 10:39:13,350 INFO L256 TraceCheckSpWp]: Trace formula consists of 1411 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-04-14 10:39:13,360 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 10:39:13,381 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:13,416 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:13,477 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:13,515 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:13,559 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:13,603 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:13,653 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:13,706 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:13,754 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:13,796 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:13,842 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 66 proven. 195 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2025-04-14 10:39:13,842 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 10:39:14,476 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 9 proven. 192 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2025-04-14 10:39:14,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946056008] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 10:39:14,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 10:39:14,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15, 12] total 32 [2025-04-14 10:39:14,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032536265] [2025-04-14 10:39:14,476 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 10:39:14,477 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-04-14 10:39:14,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 10:39:14,477 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-04-14 10:39:14,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=614, Unknown=0, NotChecked=0, Total=992 [2025-04-14 10:39:14,478 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 10:39:14,478 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 10:39:14,478 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 6.28125) internal successors, (201), 32 states have internal predecessors, (201), 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) [2025-04-14 10:39:14,478 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 10:39:14,478 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 10:39:14,478 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 10:39:14,478 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-14 10:39:14,478 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-04-14 10:39:14,478 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 10:39:15,876 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 10:39:15,876 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 10:39:15,876 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 10:39:15,876 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-14 10:39:15,876 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-04-14 10:39:15,876 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2025-04-14 10:39:15,884 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-04-14 10:39:16,077 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 10:39:16,077 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-14 10:39:16,077 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 10:39:16,077 INFO L139 ounterexampleChecker]: Examining path program with hash -289913407, occurence #3 [2025-04-14 10:39:16,077 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 10:39:16,077 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-04-14 10:39:16,078 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 10:39:16,078 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-14 10:39:16,078 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 10:39:16,078 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-04-14 10:39:16,078 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:16,078 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 145 [2025-04-14 10:39:16,086 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:16,086 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 168 [2025-04-14 10:39:16,086 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:16,086 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 174 [2025-04-14 10:39:16,086 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:16,086 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 180 [2025-04-14 10:39:16,086 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:16,086 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 186 [2025-04-14 10:39:16,086 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:16,086 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 192 [2025-04-14 10:39:16,086 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:16,086 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 198 [2025-04-14 10:39:16,087 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:16,087 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 204 [2025-04-14 10:39:16,087 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:16,087 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 210 [2025-04-14 10:39:16,087 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:16,087 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 216 [2025-04-14 10:39:16,087 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:16,087 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 222 [2025-04-14 10:39:16,087 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:16,087 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 228 [2025-04-14 10:39:16,087 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:16,087 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 234 [2025-04-14 10:39:16,087 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:16,087 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 240 [2025-04-14 10:39:16,087 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:16,087 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 246 [2025-04-14 10:39:16,087 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:16,087 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 252 [2025-04-14 10:39:16,087 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:16,087 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 258 [2025-04-14 10:39:16,087 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:16,087 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 264 [2025-04-14 10:39:16,087 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:16,087 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 270 [2025-04-14 10:39:16,088 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:16,088 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 10:39:16,088 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 10:39:16,088 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 10:39:16,088 INFO L85 PathProgramCache]: Analyzing trace with hash -780054126, now seen corresponding path program 3 times [2025-04-14 10:39:16,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 10:39:16,088 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019773773] [2025-04-14 10:39:16,088 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-14 10:39:16,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 10:39:16,148 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 276 statements into 19 equivalence classes. [2025-04-14 10:39:16,928 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) and asserted 240 of 276 statements. [2025-04-14 10:39:16,929 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2025-04-14 10:39:16,929 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 10:39:19,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1800 backedges. 269 proven. 539 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2025-04-14 10:39:19,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 10:39:19,598 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019773773] [2025-04-14 10:39:19,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019773773] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 10:39:19,598 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198189028] [2025-04-14 10:39:19,598 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-14 10:39:19,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 10:39:19,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 10:39:19,601 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 10:39:19,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-04-14 10:39:19,771 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 276 statements into 19 equivalence classes. [2025-04-14 10:39:33,951 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) and asserted 240 of 276 statements. [2025-04-14 10:39:33,952 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2025-04-14 10:39:33,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 10:39:33,969 INFO L256 TraceCheckSpWp]: Trace formula consists of 1841 conjuncts, 36 conjuncts are in the unsatisfiable core [2025-04-14 10:39:33,981 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 10:39:34,011 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:34,077 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:34,110 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:34,137 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:34,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1800 backedges. 385 proven. 66 refuted. 0 times theorem prover too weak. 1349 trivial. 0 not checked. [2025-04-14 10:39:34,160 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 10:39:34,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1800 backedges. 855 proven. 9 refuted. 0 times theorem prover too weak. 936 trivial. 0 not checked. [2025-04-14 10:39:34,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198189028] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 10:39:34,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 10:39:34,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 8, 17] total 43 [2025-04-14 10:39:34,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578897106] [2025-04-14 10:39:34,819 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 10:39:34,819 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2025-04-14 10:39:34,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 10:39:34,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2025-04-14 10:39:34,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=605, Invalid=1201, Unknown=0, NotChecked=0, Total=1806 [2025-04-14 10:39:34,821 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 10:39:34,821 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 10:39:34,821 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 8.488372093023257) internal successors, (365), 43 states have internal predecessors, (365), 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) [2025-04-14 10:39:34,821 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 10:39:34,822 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 10:39:34,822 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 10:39:34,822 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-14 10:39:34,822 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-04-14 10:39:34,822 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2025-04-14 10:39:34,822 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 10:39:35,412 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 10:39:35,413 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 10:39:35,413 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 10:39:35,413 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-14 10:39:35,413 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-04-14 10:39:35,415 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2025-04-14 10:39:35,415 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-14 10:39:35,432 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-04-14 10:39:35,615 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 10:39:35,615 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-14 10:39:35,616 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 10:39:35,616 INFO L139 ounterexampleChecker]: Examining path program with hash -1055837106, occurence #1 [2025-04-14 10:39:35,616 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 10:39:35,616 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 10:39:35,616 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 10:39:35,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1303941790, now seen corresponding path program 4 times [2025-04-14 10:39:35,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 10:39:35,617 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347072726] [2025-04-14 10:39:35,617 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-14 10:39:35,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 10:39:35,679 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 359 statements into 2 equivalence classes. [2025-04-14 10:39:36,259 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 359 of 359 statements. [2025-04-14 10:39:36,263 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-14 10:39:36,263 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 10:39:46,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1888 backedges. 479 proven. 1260 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2025-04-14 10:39:46,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 10:39:46,754 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347072726] [2025-04-14 10:39:46,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347072726] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 10:39:46,754 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788102649] [2025-04-14 10:39:46,754 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-14 10:39:46,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 10:39:46,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 10:39:46,757 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 10:39:46,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-04-14 10:39:46,994 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 359 statements into 2 equivalence classes. [2025-04-14 10:39:47,270 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 359 of 359 statements. [2025-04-14 10:39:47,270 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-14 10:39:47,270 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 10:39:47,282 INFO L256 TraceCheckSpWp]: Trace formula consists of 2354 conjuncts, 87 conjuncts are in the unsatisfiable core [2025-04-14 10:39:47,315 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 10:39:47,333 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:47,382 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:47,410 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:47,504 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:47,557 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:47,585 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:47,632 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:47,667 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:47,797 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:47,855 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:47,879 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:47,906 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:47,947 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:48,055 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:48,145 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:48,220 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:48,244 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:48,292 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:48,317 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:48,465 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 19 [2025-04-14 10:39:48,489 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:48,514 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:48,540 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:48,562 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:48,590 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:48,615 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:48,643 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:48,668 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:48,695 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:48,736 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:48,771 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:48,806 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:48,844 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:48,881 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:48,911 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:48,959 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-04-14 10:39:49,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1888 backedges. 21 proven. 1767 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2025-04-14 10:39:49,026 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 10:39:49,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1888 backedges. 427 proven. 1106 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2025-04-14 10:39:49,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1788102649] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 10:39:49,800 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 10:39:49,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 39, 24] total 94 [2025-04-14 10:39:49,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389088999] [2025-04-14 10:39:49,801 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 10:39:49,801 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2025-04-14 10:39:49,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 10:39:49,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2025-04-14 10:39:49,806 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2608, Invalid=6134, Unknown=0, NotChecked=0, Total=8742 [2025-04-14 10:39:49,806 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 10:39:49,806 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 10:39:49,807 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 94 states have (on average 6.329787234042553) internal successors, (595), 94 states have internal predecessors, (595), 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) [2025-04-14 10:39:49,807 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 10:39:49,807 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 10:39:49,807 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 10:39:49,807 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-14 10:39:49,807 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2025-04-14 10:39:49,807 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2025-04-14 10:39:49,807 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-14 10:39:49,807 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 10:39:54,151 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 10:39:54,151 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 10:39:54,151 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 10:39:54,151 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-14 10:39:54,151 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-04-14 10:39:54,151 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2025-04-14 10:39:54,151 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-14 10:39:54,152 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2025-04-14 10:39:54,162 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-04-14 10:39:54,352 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 10:39:54,352 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-14 10:39:54,352 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 10:39:54,353 INFO L139 ounterexampleChecker]: Examining path program with hash -1055837106, occurence #2 [2025-04-14 10:39:54,353 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 10:39:54,353 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-04-14 10:39:54,353 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 10:39:54,353 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-14 10:39:54,353 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 10:39:54,353 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-04-14 10:39:54,353 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,353 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2025-04-14 10:39:54,360 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,360 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 35 [2025-04-14 10:39:54,360 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,360 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2025-04-14 10:39:54,360 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,360 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 56 [2025-04-14 10:39:54,360 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,360 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 64 [2025-04-14 10:39:54,366 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 81 [2025-04-14 10:39:54,366 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,366 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 95 [2025-04-14 10:39:54,372 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,372 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 99 [2025-04-14 10:39:54,372 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,372 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 107 [2025-04-14 10:39:54,372 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,372 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 120 [2025-04-14 10:39:54,372 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,372 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 128 [2025-04-14 10:39:54,373 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,373 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 129 [2025-04-14 10:39:54,378 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,378 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 148 [2025-04-14 10:39:54,378 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,378 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 153 [2025-04-14 10:39:54,384 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,384 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 157 [2025-04-14 10:39:54,384 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,384 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 165 [2025-04-14 10:39:54,384 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,384 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 178 [2025-04-14 10:39:54,384 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,384 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 186 [2025-04-14 10:39:54,384 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,384 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 187 [2025-04-14 10:39:54,391 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,391 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 206 [2025-04-14 10:39:54,391 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,391 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 211 [2025-04-14 10:39:54,397 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,398 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 215 [2025-04-14 10:39:54,398 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,398 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 223 [2025-04-14 10:39:54,398 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,398 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 236 [2025-04-14 10:39:54,398 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,398 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 244 [2025-04-14 10:39:54,398 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,398 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 245 [2025-04-14 10:39:54,403 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,404 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 257 [2025-04-14 10:39:54,404 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,404 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 259 [2025-04-14 10:39:54,404 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,404 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 264 [2025-04-14 10:39:54,409 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,409 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 283 [2025-04-14 10:39:54,409 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,409 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 289 [2025-04-14 10:39:54,410 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,410 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 295 [2025-04-14 10:39:54,410 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,410 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 300 [2025-04-14 10:39:54,415 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,415 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 304 [2025-04-14 10:39:54,415 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,415 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 312 [2025-04-14 10:39:54,415 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,416 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 325 [2025-04-14 10:39:54,416 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,416 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 333 [2025-04-14 10:39:54,416 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,416 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 334 [2025-04-14 10:39:54,425 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,426 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 339 [2025-04-14 10:39:54,426 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,426 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 345 [2025-04-14 10:39:54,426 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,426 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 351 [2025-04-14 10:39:54,426 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,426 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 357 [2025-04-14 10:39:54,426 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,426 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 363 [2025-04-14 10:39:54,426 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,426 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 369 [2025-04-14 10:39:54,426 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,426 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 375 [2025-04-14 10:39:54,426 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,426 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 381 [2025-04-14 10:39:54,426 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,426 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 387 [2025-04-14 10:39:54,426 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,426 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 393 [2025-04-14 10:39:54,426 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,426 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 399 [2025-04-14 10:39:54,426 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,426 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 405 [2025-04-14 10:39:54,427 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,427 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 411 [2025-04-14 10:39:54,427 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,427 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 417 [2025-04-14 10:39:54,427 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,427 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 423 [2025-04-14 10:39:54,427 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,427 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 429 [2025-04-14 10:39:54,427 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,427 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 435 [2025-04-14 10:39:54,427 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,427 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 441 [2025-04-14 10:39:54,427 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,427 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 447 [2025-04-14 10:39:54,427 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,427 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 453 [2025-04-14 10:39:54,427 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,427 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 459 [2025-04-14 10:39:54,427 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,427 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 465 [2025-04-14 10:39:54,427 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,427 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 471 [2025-04-14 10:39:54,427 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,427 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 477 [2025-04-14 10:39:54,427 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,427 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 483 [2025-04-14 10:39:54,427 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,428 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 489 [2025-04-14 10:39:54,428 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,428 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 495 [2025-04-14 10:39:54,428 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,428 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 501 [2025-04-14 10:39:54,428 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,428 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 507 [2025-04-14 10:39:54,428 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,428 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 513 [2025-04-14 10:39:54,428 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,428 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 519 [2025-04-14 10:39:54,428 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,428 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 525 [2025-04-14 10:39:54,428 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,428 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 531 [2025-04-14 10:39:54,428 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,428 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 537 [2025-04-14 10:39:54,428 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,428 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 543 [2025-04-14 10:39:54,428 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 10:39:54,428 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 10:39:54,428 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 10:39:54,429 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 10:39:54,429 INFO L85 PathProgramCache]: Analyzing trace with hash 296226934, now seen corresponding path program 5 times [2025-04-14 10:39:54,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 10:39:54,429 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859248313] [2025-04-14 10:39:54,429 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-14 10:39:54,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 10:39:54,522 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 549 statements into 35 equivalence classes. [2025-04-14 10:39:57,001 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) and asserted 487 of 549 statements. [2025-04-14 10:39:57,001 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2025-04-14 10:39:57,001 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 10:40:04,568 INFO L134 CoverageAnalysis]: Checked inductivity of 5257 backedges. 949 proven. 668 refuted. 0 times theorem prover too weak. 3640 trivial. 0 not checked. [2025-04-14 10:40:04,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 10:40:04,568 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859248313] [2025-04-14 10:40:04,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859248313] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 10:40:04,569 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348747304] [2025-04-14 10:40:04,569 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-14 10:40:04,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 10:40:04,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 10:40:04,571 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 10:40:04,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-04-14 10:40:04,907 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 549 statements into 35 equivalence classes. Received shutdown request... [2025-04-14 10:53:21,943 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2025-04-14 10:53:21,943 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2025-04-14 10:53:21,943 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2025-04-14 10:53:22,958 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-04-14 10:53:22,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2025-04-14 10:53:23,143 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forcibly destroying the process [2025-04-14 10:53:23,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 137 [2025-04-14 10:53:23,182 WARN L301 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-04-14 10:53:23,182 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-04-14 10:53:23,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2025-04-14 10:53:23,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080107037] [2025-04-14 10:53:23,182 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-04-14 10:53:23,183 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-04-14 10:53:23,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 10:53:23,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-04-14 10:53:23,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2025-04-14 10:53:23,183 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 10:53:23,183 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 10:53:23,183 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 8.19047619047619) internal successors, (172), 21 states have internal predecessors, (172), 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) [2025-04-14 10:53:23,183 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 10:53:23,184 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 10:53:23,184 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 10:53:23,184 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-14 10:53:23,184 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2025-04-14 10:53:23,184 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2025-04-14 10:53:23,184 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-14 10:53:23,184 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2025-04-14 10:53:23,184 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 10:53:23,184 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-04-14 10:53:23,184 WARN L610 AbstractCegarLoop]: Verification canceled: while executing Executor. [2025-04-14 10:53:23,186 INFO L790 garLoopResultBuilder]: Registering result TIMEOUT for location t1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-04-14 10:53:23,190 INFO L422 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1] [2025-04-14 10:53:23,191 INFO L320 ceAbstractionStarter]: Result for error location t1Thread1of1ForFork1 was TIMEOUT (1/3) [2025-04-14 10:53:23,192 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-14 10:53:23,192 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-14 10:53:23,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 10:53:23 BasicIcfg [2025-04-14 10:53:23,195 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-14 10:53:23,196 INFO L158 Benchmark]: Toolchain (without parser) took 861270.19ms. Allocated memory was 125.8MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 85.9MB in the beginning and 968.0MB in the end (delta: -882.1MB). Peak memory consumption was 542.5MB. Max. memory is 8.0GB. [2025-04-14 10:53:23,196 INFO L158 Benchmark]: CDTParser took 0.81ms. Allocated memory is still 159.4MB. Free memory is still 87.8MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 10:53:23,196 INFO L158 Benchmark]: CACSL2BoogieTranslator took 600.02ms. Allocated memory is still 125.8MB. Free memory was 85.9MB in the beginning and 48.9MB in the end (delta: 36.9MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2025-04-14 10:53:23,196 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.19ms. Allocated memory is still 125.8MB. Free memory was 48.9MB in the beginning and 43.5MB in the end (delta: 5.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-14 10:53:23,196 INFO L158 Benchmark]: Boogie Preprocessor took 60.44ms. Allocated memory is still 125.8MB. Free memory was 43.5MB in the beginning and 39.9MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-14 10:53:23,196 INFO L158 Benchmark]: RCFGBuilder took 4093.77ms. Allocated memory was 125.8MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 39.3MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 367.9MB. Max. memory is 8.0GB. [2025-04-14 10:53:23,197 INFO L158 Benchmark]: TraceAbstraction took 856454.08ms. Allocated memory was 1.4GB in the beginning and 1.6GB in the end (delta: 188.7MB). Free memory was 1.2GB in the beginning and 968.0MB in the end (delta: 191.4MB). Peak memory consumption was 378.1MB. Max. memory is 8.0GB. [2025-04-14 10:53:23,197 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81ms. Allocated memory is still 159.4MB. Free memory is still 87.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 600.02ms. Allocated memory is still 125.8MB. Free memory was 85.9MB in the beginning and 48.9MB in the end (delta: 36.9MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 54.19ms. Allocated memory is still 125.8MB. Free memory was 48.9MB in the beginning and 43.5MB in the end (delta: 5.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 60.44ms. Allocated memory is still 125.8MB. Free memory was 43.5MB in the beginning and 39.9MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 4093.77ms. Allocated memory was 125.8MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 39.3MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 367.9MB. Max. memory is 8.0GB. * TraceAbstraction took 856454.08ms. Allocated memory was 1.4GB in the beginning and 1.6GB in the end (delta: 188.7MB). Free memory was 1.2GB in the beginning and 968.0MB in the end (delta: 191.4MB). Peak memory consumption was 378.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3835, independent: 2951, independent conditional: 2407, independent unconditional: 544, dependent: 884, dependent conditional: 876, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3007, independent: 2951, independent conditional: 2407, independent unconditional: 544, dependent: 56, dependent conditional: 48, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3007, independent: 2951, independent conditional: 2407, independent unconditional: 544, dependent: 56, dependent conditional: 48, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3235, independent: 2951, independent conditional: 2407, independent unconditional: 544, dependent: 284, dependent conditional: 276, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3235, independent: 2951, independent conditional: 0, independent unconditional: 2951, dependent: 284, dependent conditional: 48, dependent unconditional: 236, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3235, independent: 2951, independent conditional: 0, independent unconditional: 2951, dependent: 284, dependent conditional: 48, dependent unconditional: 236, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 421, independent: 411, independent conditional: 0, independent unconditional: 411, dependent: 10, dependent conditional: 2, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 421, independent: 406, independent conditional: 0, independent unconditional: 406, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 15, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 10, dependent conditional: 2, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 10, dependent conditional: 2, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 446, independent: 84, independent conditional: 0, independent unconditional: 84, dependent: 361, dependent conditional: 21, dependent unconditional: 340, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 13, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 3235, independent: 2540, independent conditional: 0, independent unconditional: 2540, dependent: 274, dependent conditional: 46, dependent unconditional: 228, unknown: 421, unknown conditional: 2, unknown unconditional: 419] , Statistics on independence cache: Total cache size (in pairs): 421, Positive cache size: 411, Positive conditional cache size: 0, Positive unconditional cache size: 411, Negative cache size: 10, Negative conditional cache size: 2, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 2635, Maximal queried relation: 6, Independence queries for same thread: 828, Persistent sets #1 benchmarks: Persistent set computation time: 0.5s, Number of persistent set computation: 62, Number of trivial persistent sets: 54, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 552, independent: 544, independent conditional: 0, independent unconditional: 544, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3835, independent: 2951, independent conditional: 2407, independent unconditional: 544, dependent: 884, dependent conditional: 876, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3007, independent: 2951, independent conditional: 2407, independent unconditional: 544, dependent: 56, dependent conditional: 48, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3007, independent: 2951, independent conditional: 2407, independent unconditional: 544, dependent: 56, dependent conditional: 48, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3235, independent: 2951, independent conditional: 2407, independent unconditional: 544, dependent: 284, dependent conditional: 276, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3235, independent: 2951, independent conditional: 0, independent unconditional: 2951, dependent: 284, dependent conditional: 48, dependent unconditional: 236, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3235, independent: 2951, independent conditional: 0, independent unconditional: 2951, dependent: 284, dependent conditional: 48, dependent unconditional: 236, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 421, independent: 411, independent conditional: 0, independent unconditional: 411, dependent: 10, dependent conditional: 2, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 421, independent: 406, independent conditional: 0, independent unconditional: 406, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 15, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 10, dependent conditional: 2, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 10, dependent conditional: 2, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 446, independent: 84, independent conditional: 0, independent unconditional: 84, dependent: 361, dependent conditional: 21, dependent unconditional: 340, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 13, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 3235, independent: 2540, independent conditional: 0, independent unconditional: 2540, dependent: 274, dependent conditional: 46, dependent unconditional: 228, unknown: 421, unknown conditional: 2, unknown unconditional: 419] , Statistics on independence cache: Total cache size (in pairs): 421, Positive cache size: 411, Positive conditional cache size: 0, Positive unconditional cache size: 411, Negative cache size: 10, Negative conditional cache size: 2, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 2635, Maximal queried relation: 6, Independence queries for same thread: 828 - TimeoutResultAtElement [Line: 941]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: t1Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 53 locations, 62 edges, 6 error locations. Started 1 CEGAR loops. OverallTime: 856.3s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 7.7s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 268, 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: 0.3s SsaConstructionTime, 19.0s SatisfiabilityAnalysisTime, 28.6s InterpolantComputationTime, 2349 NumberOfCodeBlocks, 2215 NumberOfCodeBlocksAsserted, 73 NumberOfCheckSat, 3200 ConstructedInterpolants, 11 QuantifiedInterpolants, 14938 SizeOfPredicates, 105 NumberOfNonLiveVariables, 7757 ConjunctsInSsa, 152 ConjunctsInUnsatCore, 19 InterpolantComputations, 3 PerfectInterpolantSequences, 11453/17534 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: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 98, ConditionCalculationTime [ms]: 89, ConditionCalculations: 104, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, UnsatisfiedConditions: 0, ImperfectProofs: 0 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown