/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 00:50:27,738 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 00:50:27,798 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 00:50:27,803 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 00:50:27,803 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 00:50:27,832 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 00:50:27,833 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 00:50:27,833 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 00:50:27,834 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 00:50:27,836 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 00:50:27,836 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 00:50:27,837 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 00:50:27,837 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 00:50:27,838 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 00:50:27,838 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 00:50:27,838 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 00:50:27,839 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 00:50:27,839 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 00:50:27,839 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 00:50:27,840 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 00:50:27,840 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 00:50:27,841 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 00:50:27,841 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 00:50:27,841 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 00:50:27,841 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 00:50:27,841 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 00:50:27,841 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 00:50:27,842 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 00:50:27,842 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 00:50:27,842 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 00:50:27,843 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 00:50:27,843 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 00:50:27,843 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 00:50:27,844 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 00:50:27,844 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 00:50:27,844 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 00:50:27,844 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 00:50:27,844 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 00:50:27,844 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 00:50:27,844 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 00:50:27,845 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 00:50:27,845 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 00:50:27,845 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 00:50:27,845 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-20 00:50:28,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 00:50:28,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 00:50:28,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 00:50:28,055 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 00:50:28,055 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 00:50:28,056 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c [2023-12-20 00:50:29,122 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 00:50:29,279 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 00:50:29,280 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c [2023-12-20 00:50:29,291 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/602cbec34/a44ac710b5e74df894e4ea2f0639b1c6/FLAG35def34e2 [2023-12-20 00:50:29,303 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/602cbec34/a44ac710b5e74df894e4ea2f0639b1c6 [2023-12-20 00:50:29,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 00:50:29,305 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 00:50:29,306 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 00:50:29,306 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 00:50:29,311 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 00:50:29,311 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 12:50:29" (1/1) ... [2023-12-20 00:50:29,312 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ab4417c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:50:29, skipping insertion in model container [2023-12-20 00:50:29,312 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 12:50:29" (1/1) ... [2023-12-20 00:50:29,357 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 00:50:29,549 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c[12106,12119] [2023-12-20 00:50:29,552 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 00:50:29,564 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 00:50:29,629 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c[12106,12119] [2023-12-20 00:50:29,630 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 00:50:29,646 INFO L206 MainTranslator]: Completed translation [2023-12-20 00:50:29,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:50:29 WrapperNode [2023-12-20 00:50:29,646 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 00:50:29,648 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 00:50:29,648 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 00:50:29,648 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 00:50:29,654 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:50:29" (1/1) ... [2023-12-20 00:50:29,673 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:50:29" (1/1) ... [2023-12-20 00:50:29,706 INFO L138 Inliner]: procedures = 28, calls = 51, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 406 [2023-12-20 00:50:29,706 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 00:50:29,707 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 00:50:29,709 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 00:50:29,709 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 00:50:29,717 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:50:29" (1/1) ... [2023-12-20 00:50:29,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:50:29" (1/1) ... [2023-12-20 00:50:29,724 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:50:29" (1/1) ... [2023-12-20 00:50:29,748 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-20 00:50:29,749 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:50:29" (1/1) ... [2023-12-20 00:50:29,749 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:50:29" (1/1) ... [2023-12-20 00:50:29,761 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:50:29" (1/1) ... [2023-12-20 00:50:29,765 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:50:29" (1/1) ... [2023-12-20 00:50:29,766 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:50:29" (1/1) ... [2023-12-20 00:50:29,767 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:50:29" (1/1) ... [2023-12-20 00:50:29,769 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 00:50:29,770 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 00:50:29,770 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 00:50:29,770 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 00:50:29,771 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:50:29" (1/1) ... [2023-12-20 00:50:29,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 00:50:29,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:50:29,813 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) [2023-12-20 00:50:29,830 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 [2023-12-20 00:50:29,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 00:50:29,840 INFO L130 BoogieDeclarations]: Found specification of procedure write_history_bool [2023-12-20 00:50:29,840 INFO L138 BoogieDeclarations]: Found implementation of procedure write_history_bool [2023-12-20 00:50:29,841 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-12-20 00:50:29,841 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-12-20 00:50:29,841 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_int8 [2023-12-20 00:50:29,842 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_int8 [2023-12-20 00:50:29,842 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_bool [2023-12-20 00:50:29,842 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_bool [2023-12-20 00:50:29,842 INFO L130 BoogieDeclarations]: Found specification of procedure add_history_type [2023-12-20 00:50:29,842 INFO L138 BoogieDeclarations]: Found implementation of procedure add_history_type [2023-12-20 00:50:29,842 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-20 00:50:29,842 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-20 00:50:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 00:50:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 00:50:29,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 00:50:29,919 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 00:50:29,921 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 00:50:30,382 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 00:50:30,427 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 00:50:30,427 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-20 00:50:30,428 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 12:50:30 BoogieIcfgContainer [2023-12-20 00:50:30,428 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 00:50:30,429 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 00:50:30,429 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 00:50:30,432 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 00:50:30,432 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 12:50:29" (1/3) ... [2023-12-20 00:50:30,433 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31286116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 12:50:30, skipping insertion in model container [2023-12-20 00:50:30,434 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:50:29" (2/3) ... [2023-12-20 00:50:30,434 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31286116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 12:50:30, skipping insertion in model container [2023-12-20 00:50:30,434 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 12:50:30" (3/3) ... [2023-12-20 00:50:30,435 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c [2023-12-20 00:50:30,448 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 00:50:30,448 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 00:50:30,484 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 00:50:30,488 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, 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;@5369fc3b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 00:50:30,488 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 00:50:30,491 INFO L276 IsEmpty]: Start isEmpty. Operand has 175 states, 130 states have (on average 1.6076923076923078) internal successors, (209), 135 states have internal predecessors, (209), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-12-20 00:50:30,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-20 00:50:30,497 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:30,497 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:30,497 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:30,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:30,500 INFO L85 PathProgramCache]: Analyzing trace with hash 2074964955, now seen corresponding path program 1 times [2023-12-20 00:50:30,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:30,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877592905] [2023-12-20 00:50:30,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:30,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:30,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:30,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:50:30,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:30,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877592905] [2023-12-20 00:50:30,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877592905] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:30,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:50:30,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 00:50:30,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856747029] [2023-12-20 00:50:30,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:30,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 00:50:30,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:30,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 00:50:30,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 00:50:30,702 INFO L87 Difference]: Start difference. First operand has 175 states, 130 states have (on average 1.6076923076923078) internal successors, (209), 135 states have internal predecessors, (209), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 00:50:30,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:30,816 INFO L93 Difference]: Finished difference Result 354 states and 614 transitions. [2023-12-20 00:50:30,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 00:50:30,818 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-12-20 00:50:30,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:30,825 INFO L225 Difference]: With dead ends: 354 [2023-12-20 00:50:30,825 INFO L226 Difference]: Without dead ends: 181 [2023-12-20 00:50:30,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:30,831 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 18 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:30,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 793 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 00:50:30,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-12-20 00:50:30,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 179. [2023-12-20 00:50:30,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 134 states have (on average 1.5671641791044777) internal successors, (210), 138 states have internal predecessors, (210), 37 states have call successors, (37), 7 states have call predecessors, (37), 7 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-12-20 00:50:30,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 284 transitions. [2023-12-20 00:50:30,877 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 284 transitions. Word has length 14 [2023-12-20 00:50:30,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:30,878 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 284 transitions. [2023-12-20 00:50:30,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 00:50:30,878 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 284 transitions. [2023-12-20 00:50:30,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-20 00:50:30,879 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:30,879 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:30,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 00:50:30,880 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:30,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:30,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1470326834, now seen corresponding path program 1 times [2023-12-20 00:50:30,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:30,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031805870] [2023-12-20 00:50:30,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:30,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:30,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:50:30,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:30,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031805870] [2023-12-20 00:50:30,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031805870] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:30,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:50:30,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 00:50:30,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481578366] [2023-12-20 00:50:30,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:30,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 00:50:30,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:30,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 00:50:30,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 00:50:30,923 INFO L87 Difference]: Start difference. First operand 179 states and 284 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 00:50:30,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:30,982 INFO L93 Difference]: Finished difference Result 372 states and 592 transitions. [2023-12-20 00:50:30,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 00:50:30,985 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-12-20 00:50:30,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:30,987 INFO L225 Difference]: With dead ends: 372 [2023-12-20 00:50:30,987 INFO L226 Difference]: Without dead ends: 195 [2023-12-20 00:50:30,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:30,990 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 25 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:30,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 813 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 00:50:30,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-12-20 00:50:31,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 192. [2023-12-20 00:50:31,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 145 states have (on average 1.5448275862068965) internal successors, (224), 149 states have internal predecessors, (224), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-20 00:50:31,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 300 transitions. [2023-12-20 00:50:31,002 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 300 transitions. Word has length 15 [2023-12-20 00:50:31,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:31,002 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 300 transitions. [2023-12-20 00:50:31,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 00:50:31,003 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 300 transitions. [2023-12-20 00:50:31,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-20 00:50:31,004 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:31,004 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:31,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 00:50:31,004 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:31,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:31,005 INFO L85 PathProgramCache]: Analyzing trace with hash -451822646, now seen corresponding path program 1 times [2023-12-20 00:50:31,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:31,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162537907] [2023-12-20 00:50:31,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:31,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:31,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:31,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:31,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:31,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:50:31,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:31,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162537907] [2023-12-20 00:50:31,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162537907] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:31,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:50:31,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 00:50:31,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661464046] [2023-12-20 00:50:31,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:31,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 00:50:31,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:31,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 00:50:31,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 00:50:31,069 INFO L87 Difference]: Start difference. First operand 192 states and 300 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-20 00:50:31,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:31,092 INFO L93 Difference]: Finished difference Result 404 states and 638 transitions. [2023-12-20 00:50:31,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 00:50:31,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2023-12-20 00:50:31,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:31,094 INFO L225 Difference]: With dead ends: 404 [2023-12-20 00:50:31,094 INFO L226 Difference]: Without dead ends: 221 [2023-12-20 00:50:31,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 00:50:31,096 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 22 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:31,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 546 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 00:50:31,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-12-20 00:50:31,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 194. [2023-12-20 00:50:31,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 147 states have (on average 1.5374149659863945) internal successors, (226), 151 states have internal predecessors, (226), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-20 00:50:31,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 302 transitions. [2023-12-20 00:50:31,110 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 302 transitions. Word has length 23 [2023-12-20 00:50:31,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:31,111 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 302 transitions. [2023-12-20 00:50:31,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-20 00:50:31,111 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 302 transitions. [2023-12-20 00:50:31,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-20 00:50:31,112 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:31,112 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:31,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 00:50:31,112 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:31,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:31,113 INFO L85 PathProgramCache]: Analyzing trace with hash 628615801, now seen corresponding path program 1 times [2023-12-20 00:50:31,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:31,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686987617] [2023-12-20 00:50:31,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:31,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:31,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:31,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:31,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:31,202 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:50:31,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:31,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686987617] [2023-12-20 00:50:31,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686987617] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:31,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:50:31,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 00:50:31,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543074030] [2023-12-20 00:50:31,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:31,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 00:50:31,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:31,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 00:50:31,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:31,207 INFO L87 Difference]: Start difference. First operand 194 states and 302 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-20 00:50:31,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:31,253 INFO L93 Difference]: Finished difference Result 380 states and 595 transitions. [2023-12-20 00:50:31,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 00:50:31,254 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2023-12-20 00:50:31,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:31,255 INFO L225 Difference]: With dead ends: 380 [2023-12-20 00:50:31,255 INFO L226 Difference]: Without dead ends: 201 [2023-12-20 00:50:31,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:31,257 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 1 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:31,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1088 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 00:50:31,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2023-12-20 00:50:31,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 198. [2023-12-20 00:50:31,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 150 states have (on average 1.5266666666666666) internal successors, (229), 154 states have internal predecessors, (229), 38 states have call successors, (38), 8 states have call predecessors, (38), 9 states have return successors, (39), 39 states have call predecessors, (39), 38 states have call successors, (39) [2023-12-20 00:50:31,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 306 transitions. [2023-12-20 00:50:31,269 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 306 transitions. Word has length 31 [2023-12-20 00:50:31,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:31,269 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 306 transitions. [2023-12-20 00:50:31,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-20 00:50:31,270 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 306 transitions. [2023-12-20 00:50:31,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-20 00:50:31,271 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:31,271 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:31,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 00:50:31,271 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:31,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:31,272 INFO L85 PathProgramCache]: Analyzing trace with hash 873027383, now seen corresponding path program 1 times [2023-12-20 00:50:31,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:31,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88322531] [2023-12-20 00:50:31,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:31,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:31,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:31,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:31,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:31,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:31,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:31,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 00:50:31,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:31,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:50:31,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:31,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88322531] [2023-12-20 00:50:31,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88322531] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:31,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:50:31,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 00:50:31,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001101418] [2023-12-20 00:50:31,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:31,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 00:50:31,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:31,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 00:50:31,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-20 00:50:31,378 INFO L87 Difference]: Start difference. First operand 198 states and 306 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-20 00:50:31,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:31,451 INFO L93 Difference]: Finished difference Result 342 states and 535 transitions. [2023-12-20 00:50:31,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 00:50:31,451 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 34 [2023-12-20 00:50:31,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:31,455 INFO L225 Difference]: With dead ends: 342 [2023-12-20 00:50:31,455 INFO L226 Difference]: Without dead ends: 194 [2023-12-20 00:50:31,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-20 00:50:31,463 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 119 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1184 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:31,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1184 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 00:50:31,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-12-20 00:50:31,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2023-12-20 00:50:31,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 147 states have (on average 1.5034013605442176) internal successors, (221), 151 states have internal predecessors, (221), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-20 00:50:31,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 297 transitions. [2023-12-20 00:50:31,475 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 297 transitions. Word has length 34 [2023-12-20 00:50:31,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:31,475 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 297 transitions. [2023-12-20 00:50:31,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-20 00:50:31,476 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 297 transitions. [2023-12-20 00:50:31,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-20 00:50:31,477 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:31,477 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:31,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 00:50:31,477 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:31,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:31,477 INFO L85 PathProgramCache]: Analyzing trace with hash -2012797693, now seen corresponding path program 1 times [2023-12-20 00:50:31,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:31,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156616242] [2023-12-20 00:50:31,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:31,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:31,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:31,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:31,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:31,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:31,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:31,576 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:50:31,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:31,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156616242] [2023-12-20 00:50:31,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156616242] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 00:50:31,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138976032] [2023-12-20 00:50:31,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:31,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:50:31,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:50:31,584 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 00:50:31,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 00:50:31,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:31,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-20 00:50:31,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:50:31,723 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:50:31,723 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 00:50:31,768 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:50:31,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138976032] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 00:50:31,768 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 00:50:31,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2023-12-20 00:50:31,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926214168] [2023-12-20 00:50:31,769 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 00:50:31,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 00:50:31,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:31,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 00:50:31,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:31,770 INFO L87 Difference]: Start difference. First operand 194 states and 297 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-20 00:50:31,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:31,811 INFO L93 Difference]: Finished difference Result 437 states and 682 transitions. [2023-12-20 00:50:31,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 00:50:31,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 34 [2023-12-20 00:50:31,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:31,814 INFO L225 Difference]: With dead ends: 437 [2023-12-20 00:50:31,814 INFO L226 Difference]: Without dead ends: 253 [2023-12-20 00:50:31,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:31,817 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 68 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:31,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 815 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 00:50:31,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2023-12-20 00:50:31,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 247. [2023-12-20 00:50:31,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 190 states have (on average 1.4736842105263157) internal successors, (280), 194 states have internal predecessors, (280), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-20 00:50:31,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 376 transitions. [2023-12-20 00:50:31,853 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 376 transitions. Word has length 34 [2023-12-20 00:50:31,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:31,853 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 376 transitions. [2023-12-20 00:50:31,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-20 00:50:31,854 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 376 transitions. [2023-12-20 00:50:31,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-20 00:50:31,859 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:31,860 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:31,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-20 00:50:32,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-20 00:50:32,070 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:32,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:32,071 INFO L85 PathProgramCache]: Analyzing trace with hash 661632675, now seen corresponding path program 2 times [2023-12-20 00:50:32,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:32,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044744265] [2023-12-20 00:50:32,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:32,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:32,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:32,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:32,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:32,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,145 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-20 00:50:32,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:32,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044744265] [2023-12-20 00:50:32,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044744265] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:32,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:50:32,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 00:50:32,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516520361] [2023-12-20 00:50:32,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:32,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 00:50:32,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:32,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 00:50:32,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 00:50:32,149 INFO L87 Difference]: Start difference. First operand 247 states and 376 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-20 00:50:32,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:32,187 INFO L93 Difference]: Finished difference Result 475 states and 743 transitions. [2023-12-20 00:50:32,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 00:50:32,187 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 56 [2023-12-20 00:50:32,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:32,190 INFO L225 Difference]: With dead ends: 475 [2023-12-20 00:50:32,190 INFO L226 Difference]: Without dead ends: 256 [2023-12-20 00:50:32,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:32,193 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 19 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:32,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 792 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 00:50:32,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2023-12-20 00:50:32,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 254. [2023-12-20 00:50:32,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 196 states have (on average 1.469387755102041) internal successors, (288), 200 states have internal predecessors, (288), 48 states have call successors, (48), 9 states have call predecessors, (48), 9 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-20 00:50:32,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 384 transitions. [2023-12-20 00:50:32,209 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 384 transitions. Word has length 56 [2023-12-20 00:50:32,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:32,209 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 384 transitions. [2023-12-20 00:50:32,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-20 00:50:32,210 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 384 transitions. [2023-12-20 00:50:32,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-20 00:50:32,210 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:32,211 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:32,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 00:50:32,211 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:32,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:32,211 INFO L85 PathProgramCache]: Analyzing trace with hash 714322674, now seen corresponding path program 1 times [2023-12-20 00:50:32,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:32,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605088511] [2023-12-20 00:50:32,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:32,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:32,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:32,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:32,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:32,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,272 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-20 00:50:32,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:32,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605088511] [2023-12-20 00:50:32,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605088511] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:32,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:50:32,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 00:50:32,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552765165] [2023-12-20 00:50:32,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:32,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 00:50:32,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:32,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 00:50:32,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 00:50:32,280 INFO L87 Difference]: Start difference. First operand 254 states and 384 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-20 00:50:32,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:32,313 INFO L93 Difference]: Finished difference Result 519 states and 795 transitions. [2023-12-20 00:50:32,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 00:50:32,314 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 56 [2023-12-20 00:50:32,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:32,316 INFO L225 Difference]: With dead ends: 519 [2023-12-20 00:50:32,316 INFO L226 Difference]: Without dead ends: 293 [2023-12-20 00:50:32,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:32,317 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 24 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:32,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 805 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 00:50:32,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-12-20 00:50:32,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 290. [2023-12-20 00:50:32,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 228 states have (on average 1.4254385964912282) internal successors, (325), 232 states have internal predecessors, (325), 51 states have call successors, (51), 10 states have call predecessors, (51), 10 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2023-12-20 00:50:32,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 427 transitions. [2023-12-20 00:50:32,332 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 427 transitions. Word has length 56 [2023-12-20 00:50:32,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:32,333 INFO L495 AbstractCegarLoop]: Abstraction has 290 states and 427 transitions. [2023-12-20 00:50:32,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-20 00:50:32,333 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 427 transitions. [2023-12-20 00:50:32,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-20 00:50:32,336 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:32,336 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:32,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 00:50:32,336 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:32,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:32,337 INFO L85 PathProgramCache]: Analyzing trace with hash -545843192, now seen corresponding path program 1 times [2023-12-20 00:50:32,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:32,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257855261] [2023-12-20 00:50:32,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:32,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:32,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:32,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:32,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:32,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:50:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:50:32,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,448 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-12-20 00:50:32,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:32,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257855261] [2023-12-20 00:50:32,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257855261] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:32,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:50:32,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 00:50:32,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544301020] [2023-12-20 00:50:32,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:32,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 00:50:32,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:32,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 00:50:32,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:32,450 INFO L87 Difference]: Start difference. First operand 290 states and 427 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-20 00:50:32,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:32,475 INFO L93 Difference]: Finished difference Result 530 states and 794 transitions. [2023-12-20 00:50:32,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 00:50:32,475 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 74 [2023-12-20 00:50:32,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:32,477 INFO L225 Difference]: With dead ends: 530 [2023-12-20 00:50:32,477 INFO L226 Difference]: Without dead ends: 292 [2023-12-20 00:50:32,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:32,479 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 0 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:32,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1075 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 00:50:32,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2023-12-20 00:50:32,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 290. [2023-12-20 00:50:32,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 228 states have (on average 1.412280701754386) internal successors, (322), 232 states have internal predecessors, (322), 51 states have call successors, (51), 10 states have call predecessors, (51), 10 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2023-12-20 00:50:32,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 424 transitions. [2023-12-20 00:50:32,491 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 424 transitions. Word has length 74 [2023-12-20 00:50:32,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:32,491 INFO L495 AbstractCegarLoop]: Abstraction has 290 states and 424 transitions. [2023-12-20 00:50:32,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-20 00:50:32,491 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 424 transitions. [2023-12-20 00:50:32,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-20 00:50:32,492 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:32,492 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:32,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 00:50:32,492 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:32,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:32,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1447243218, now seen corresponding path program 1 times [2023-12-20 00:50:32,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:32,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027133480] [2023-12-20 00:50:32,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:32,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:32,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:32,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:32,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:32,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:50:32,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:50:32,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:50:32,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:50:32,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,617 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-12-20 00:50:32,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:32,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027133480] [2023-12-20 00:50:32,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027133480] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:32,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:50:32,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 00:50:32,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377959460] [2023-12-20 00:50:32,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:32,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 00:50:32,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:32,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 00:50:32,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 00:50:32,619 INFO L87 Difference]: Start difference. First operand 290 states and 424 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-20 00:50:32,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:32,664 INFO L93 Difference]: Finished difference Result 567 states and 850 transitions. [2023-12-20 00:50:32,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 00:50:32,665 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 103 [2023-12-20 00:50:32,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:32,669 INFO L225 Difference]: With dead ends: 567 [2023-12-20 00:50:32,670 INFO L226 Difference]: Without dead ends: 334 [2023-12-20 00:50:32,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:32,672 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 25 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:32,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 805 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 00:50:32,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2023-12-20 00:50:32,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 331. [2023-12-20 00:50:32,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 265 states have (on average 1.3735849056603773) internal successors, (364), 269 states have internal predecessors, (364), 54 states have call successors, (54), 11 states have call predecessors, (54), 11 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-20 00:50:32,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 472 transitions. [2023-12-20 00:50:32,688 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 472 transitions. Word has length 103 [2023-12-20 00:50:32,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:32,688 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 472 transitions. [2023-12-20 00:50:32,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-20 00:50:32,688 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 472 transitions. [2023-12-20 00:50:32,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-20 00:50:32,692 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:32,692 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:32,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 00:50:32,692 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:32,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:32,693 INFO L85 PathProgramCache]: Analyzing trace with hash 2118149951, now seen corresponding path program 1 times [2023-12-20 00:50:32,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:32,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125611572] [2023-12-20 00:50:32,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:32,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:32,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:32,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:32,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:32,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:32,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:50:32,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:50:32,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:50:32,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:50:32,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,776 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-20 00:50:32,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:32,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125611572] [2023-12-20 00:50:32,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125611572] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:32,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:50:32,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 00:50:32,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858367545] [2023-12-20 00:50:32,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:32,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 00:50:32,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:32,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 00:50:32,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 00:50:32,778 INFO L87 Difference]: Start difference. First operand 331 states and 472 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-20 00:50:32,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:32,813 INFO L93 Difference]: Finished difference Result 593 states and 870 transitions. [2023-12-20 00:50:32,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 00:50:32,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 104 [2023-12-20 00:50:32,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:32,815 INFO L225 Difference]: With dead ends: 593 [2023-12-20 00:50:32,815 INFO L226 Difference]: Without dead ends: 325 [2023-12-20 00:50:32,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:32,816 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 15 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:32,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 765 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 00:50:32,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2023-12-20 00:50:32,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2023-12-20 00:50:32,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 260 states have (on average 1.353846153846154) internal successors, (352), 264 states have internal predecessors, (352), 53 states have call successors, (53), 11 states have call predecessors, (53), 11 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2023-12-20 00:50:32,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 458 transitions. [2023-12-20 00:50:32,827 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 458 transitions. Word has length 104 [2023-12-20 00:50:32,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:32,828 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 458 transitions. [2023-12-20 00:50:32,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-20 00:50:32,829 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 458 transitions. [2023-12-20 00:50:32,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-20 00:50:32,829 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:32,829 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:32,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 00:50:32,830 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:32,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:32,830 INFO L85 PathProgramCache]: Analyzing trace with hash 644396980, now seen corresponding path program 1 times [2023-12-20 00:50:32,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:32,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212375001] [2023-12-20 00:50:32,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:32,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:32,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:32,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:32,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:50:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:50:32,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:50:32,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:50:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:50:32,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:50:32,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:32,920 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2023-12-20 00:50:32,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:32,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212375001] [2023-12-20 00:50:32,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212375001] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:32,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:50:32,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 00:50:32,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427975084] [2023-12-20 00:50:32,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:32,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 00:50:32,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:32,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 00:50:32,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:32,922 INFO L87 Difference]: Start difference. First operand 325 states and 458 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-20 00:50:32,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:32,948 INFO L93 Difference]: Finished difference Result 568 states and 819 transitions. [2023-12-20 00:50:32,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 00:50:32,948 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 123 [2023-12-20 00:50:32,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:32,950 INFO L225 Difference]: With dead ends: 568 [2023-12-20 00:50:32,950 INFO L226 Difference]: Without dead ends: 327 [2023-12-20 00:50:32,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:32,951 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 0 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:32,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1059 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 00:50:32,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2023-12-20 00:50:32,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 325. [2023-12-20 00:50:32,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 260 states have (on average 1.3423076923076922) internal successors, (349), 264 states have internal predecessors, (349), 53 states have call successors, (53), 11 states have call predecessors, (53), 11 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2023-12-20 00:50:32,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 455 transitions. [2023-12-20 00:50:32,963 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 455 transitions. Word has length 123 [2023-12-20 00:50:32,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:32,963 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 455 transitions. [2023-12-20 00:50:32,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-20 00:50:32,963 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 455 transitions. [2023-12-20 00:50:32,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-20 00:50:32,964 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:32,965 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 7, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:32,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 00:50:32,965 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:32,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:32,965 INFO L85 PathProgramCache]: Analyzing trace with hash 2015312998, now seen corresponding path program 1 times [2023-12-20 00:50:32,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:32,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335719563] [2023-12-20 00:50:32,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:32,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:32,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:33,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:33,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:33,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:33,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:50:33,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:50:33,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:50:33,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:50:33,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:50:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:50:33,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:33,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:50:33,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,072 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2023-12-20 00:50:33,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:33,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335719563] [2023-12-20 00:50:33,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335719563] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:33,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:50:33,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 00:50:33,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203329592] [2023-12-20 00:50:33,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:33,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 00:50:33,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:33,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 00:50:33,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 00:50:33,074 INFO L87 Difference]: Start difference. First operand 325 states and 455 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-20 00:50:33,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:33,115 INFO L93 Difference]: Finished difference Result 531 states and 779 transitions. [2023-12-20 00:50:33,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 00:50:33,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 156 [2023-12-20 00:50:33,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:33,117 INFO L225 Difference]: With dead ends: 531 [2023-12-20 00:50:33,117 INFO L226 Difference]: Without dead ends: 323 [2023-12-20 00:50:33,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:33,118 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 13 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:33,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 733 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 00:50:33,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2023-12-20 00:50:33,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2023-12-20 00:50:33,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 259 states have (on average 1.3397683397683398) internal successors, (347), 263 states have internal predecessors, (347), 52 states have call successors, (52), 11 states have call predecessors, (52), 11 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-12-20 00:50:33,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 451 transitions. [2023-12-20 00:50:33,127 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 451 transitions. Word has length 156 [2023-12-20 00:50:33,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:33,127 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 451 transitions. [2023-12-20 00:50:33,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-20 00:50:33,127 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 451 transitions. [2023-12-20 00:50:33,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-12-20 00:50:33,129 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:33,129 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:33,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-20 00:50:33,129 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:33,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:33,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1851796518, now seen corresponding path program 1 times [2023-12-20 00:50:33,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:33,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106021164] [2023-12-20 00:50:33,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:33,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:33,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:33,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:33,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:33,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:50:33,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:50:33,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:50:33,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:50:33,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:50:33,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:50:33,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:33,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:50:33,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:50:33,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:33,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-20 00:50:33,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,258 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2023-12-20 00:50:33,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:33,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106021164] [2023-12-20 00:50:33,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106021164] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:33,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:50:33,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 00:50:33,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781528398] [2023-12-20 00:50:33,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:33,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 00:50:33,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:33,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 00:50:33,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 00:50:33,260 INFO L87 Difference]: Start difference. First operand 323 states and 451 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-20 00:50:33,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:33,310 INFO L93 Difference]: Finished difference Result 471 states and 675 transitions. [2023-12-20 00:50:33,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 00:50:33,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 175 [2023-12-20 00:50:33,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:33,312 INFO L225 Difference]: With dead ends: 471 [2023-12-20 00:50:33,312 INFO L226 Difference]: Without dead ends: 306 [2023-12-20 00:50:33,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:33,313 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 35 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:33,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 714 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 00:50:33,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2023-12-20 00:50:33,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2023-12-20 00:50:33,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 245 states have (on average 1.3306122448979592) internal successors, (326), 249 states have internal predecessors, (326), 49 states have call successors, (49), 11 states have call predecessors, (49), 11 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-12-20 00:50:33,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 424 transitions. [2023-12-20 00:50:33,323 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 424 transitions. Word has length 175 [2023-12-20 00:50:33,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:33,324 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 424 transitions. [2023-12-20 00:50:33,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-20 00:50:33,324 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 424 transitions. [2023-12-20 00:50:33,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-12-20 00:50:33,325 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:33,325 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:33,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-20 00:50:33,325 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:33,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:33,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1809752837, now seen corresponding path program 1 times [2023-12-20 00:50:33,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:33,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138120370] [2023-12-20 00:50:33,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:33,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:33,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:33,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:33,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:33,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:50:33,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:50:33,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:50:33,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:50:33,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:50:33,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:50:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:33,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:50:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:50:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:50:33,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-20 00:50:33,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,423 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2023-12-20 00:50:33,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:33,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138120370] [2023-12-20 00:50:33,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138120370] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:33,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:50:33,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 00:50:33,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717671977] [2023-12-20 00:50:33,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:33,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 00:50:33,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:33,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 00:50:33,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 00:50:33,425 INFO L87 Difference]: Start difference. First operand 306 states and 424 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-20 00:50:33,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:33,468 INFO L93 Difference]: Finished difference Result 454 states and 648 transitions. [2023-12-20 00:50:33,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 00:50:33,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 177 [2023-12-20 00:50:33,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:33,470 INFO L225 Difference]: With dead ends: 454 [2023-12-20 00:50:33,470 INFO L226 Difference]: Without dead ends: 287 [2023-12-20 00:50:33,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:33,472 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 30 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:33,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 718 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 00:50:33,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2023-12-20 00:50:33,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2023-12-20 00:50:33,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 229 states have (on average 1.3231441048034935) internal successors, (303), 233 states have internal predecessors, (303), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-20 00:50:33,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 395 transitions. [2023-12-20 00:50:33,480 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 395 transitions. Word has length 177 [2023-12-20 00:50:33,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:33,480 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 395 transitions. [2023-12-20 00:50:33,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-20 00:50:33,481 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 395 transitions. [2023-12-20 00:50:33,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-12-20 00:50:33,482 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:33,482 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 7, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:33,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-20 00:50:33,482 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:33,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:33,482 INFO L85 PathProgramCache]: Analyzing trace with hash -90150298, now seen corresponding path program 1 times [2023-12-20 00:50:33,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:33,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602324143] [2023-12-20 00:50:33,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:33,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:33,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:33,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:33,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:33,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:33,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:50:33,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:50:33,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:50:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:50:33,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:50:33,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:50:33,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:33,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:50:33,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:50:33,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:50:33,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-12-20 00:50:33,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,592 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2023-12-20 00:50:33,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:33,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602324143] [2023-12-20 00:50:33,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602324143] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:33,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:50:33,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 00:50:33,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164772253] [2023-12-20 00:50:33,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:33,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 00:50:33,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:33,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 00:50:33,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:33,593 INFO L87 Difference]: Start difference. First operand 287 states and 395 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-20 00:50:33,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:33,611 INFO L93 Difference]: Finished difference Result 434 states and 618 transitions. [2023-12-20 00:50:33,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 00:50:33,612 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 178 [2023-12-20 00:50:33,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:33,613 INFO L225 Difference]: With dead ends: 434 [2023-12-20 00:50:33,613 INFO L226 Difference]: Without dead ends: 287 [2023-12-20 00:50:33,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:33,614 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 0 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:33,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1037 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 00:50:33,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2023-12-20 00:50:33,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2023-12-20 00:50:33,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 229 states have (on average 1.296943231441048) internal successors, (297), 233 states have internal predecessors, (297), 46 states have call successors, (46), 11 states have call predecessors, (46), 11 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-20 00:50:33,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 389 transitions. [2023-12-20 00:50:33,625 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 389 transitions. Word has length 178 [2023-12-20 00:50:33,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:33,625 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 389 transitions. [2023-12-20 00:50:33,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-20 00:50:33,625 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 389 transitions. [2023-12-20 00:50:33,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-12-20 00:50:33,627 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:33,627 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:33,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-20 00:50:33,628 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:33,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:33,628 INFO L85 PathProgramCache]: Analyzing trace with hash -993656755, now seen corresponding path program 1 times [2023-12-20 00:50:33,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:33,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580035694] [2023-12-20 00:50:33,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:33,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:33,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:50:33,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:50:33,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:50:33,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:50:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:50:33,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:50:33,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:50:33,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:50:33,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-20 00:50:33,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,755 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 138 proven. 11 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2023-12-20 00:50:33,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:33,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580035694] [2023-12-20 00:50:33,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580035694] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 00:50:33,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405613433] [2023-12-20 00:50:33,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:33,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:50:33,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:50:33,756 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) [2023-12-20 00:50:33,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 00:50:33,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:33,899 INFO L262 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-20 00:50:33,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:50:33,966 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 138 proven. 11 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2023-12-20 00:50:33,966 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 00:50:34,059 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2023-12-20 00:50:34,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405613433] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-20 00:50:34,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-20 00:50:34,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 5 [2023-12-20 00:50:34,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258638883] [2023-12-20 00:50:34,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:34,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 00:50:34,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:34,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 00:50:34,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:34,060 INFO L87 Difference]: Start difference. First operand 287 states and 389 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-20 00:50:34,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:34,093 INFO L93 Difference]: Finished difference Result 455 states and 640 transitions. [2023-12-20 00:50:34,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 00:50:34,093 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 185 [2023-12-20 00:50:34,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:34,094 INFO L225 Difference]: With dead ends: 455 [2023-12-20 00:50:34,095 INFO L226 Difference]: Without dead ends: 266 [2023-12-20 00:50:34,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 396 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:34,095 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 30 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:34,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 491 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 00:50:34,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2023-12-20 00:50:34,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2023-12-20 00:50:34,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 211 states have (on average 1.2890995260663507) internal successors, (272), 215 states have internal predecessors, (272), 43 states have call successors, (43), 11 states have call predecessors, (43), 11 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-12-20 00:50:34,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 358 transitions. [2023-12-20 00:50:34,105 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 358 transitions. Word has length 185 [2023-12-20 00:50:34,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:34,105 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 358 transitions. [2023-12-20 00:50:34,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-20 00:50:34,105 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 358 transitions. [2023-12-20 00:50:34,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-12-20 00:50:34,106 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:34,107 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:34,116 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-20 00:50:34,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-20 00:50:34,313 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:34,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:34,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1118713088, now seen corresponding path program 1 times [2023-12-20 00:50:34,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:34,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702914549] [2023-12-20 00:50:34,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:34,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:34,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:34,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:34,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:34,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:34,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:50:34,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:50:34,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:50:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:50:34,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:50:34,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:50:34,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:34,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:50:34,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:50:34,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:50:34,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:34,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:50:34,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:50:34,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,397 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-12-20 00:50:34,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:34,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702914549] [2023-12-20 00:50:34,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702914549] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:34,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:50:34,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 00:50:34,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729493396] [2023-12-20 00:50:34,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:34,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 00:50:34,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:34,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 00:50:34,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 00:50:34,399 INFO L87 Difference]: Start difference. First operand 266 states and 358 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-20 00:50:34,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:34,423 INFO L93 Difference]: Finished difference Result 412 states and 581 transitions. [2023-12-20 00:50:34,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 00:50:34,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 209 [2023-12-20 00:50:34,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:34,425 INFO L225 Difference]: With dead ends: 412 [2023-12-20 00:50:34,425 INFO L226 Difference]: Without dead ends: 272 [2023-12-20 00:50:34,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:34,426 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 6 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:34,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 758 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 00:50:34,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2023-12-20 00:50:34,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 270. [2023-12-20 00:50:34,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 214 states have (on average 1.2850467289719627) internal successors, (275), 218 states have internal predecessors, (275), 43 states have call successors, (43), 12 states have call predecessors, (43), 12 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-12-20 00:50:34,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 361 transitions. [2023-12-20 00:50:34,434 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 361 transitions. Word has length 209 [2023-12-20 00:50:34,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:34,434 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 361 transitions. [2023-12-20 00:50:34,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-20 00:50:34,434 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 361 transitions. [2023-12-20 00:50:34,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-12-20 00:50:34,436 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:34,436 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:34,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-20 00:50:34,436 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:34,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:34,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1972757185, now seen corresponding path program 1 times [2023-12-20 00:50:34,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:34,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093581025] [2023-12-20 00:50:34,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:34,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:34,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:34,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:34,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:34,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:34,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:50:34,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:50:34,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:50:34,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:50:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:50:34,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:50:34,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:34,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:50:34,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:50:34,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:50:34,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:50:34,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:50:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:50:34,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,548 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-12-20 00:50:34,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:34,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093581025] [2023-12-20 00:50:34,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093581025] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 00:50:34,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016049302] [2023-12-20 00:50:34,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:34,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:50:34,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:50:34,549 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) [2023-12-20 00:50:34,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-20 00:50:34,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:34,704 INFO L262 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-20 00:50:34,712 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:50:34,725 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-12-20 00:50:34,725 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 00:50:34,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016049302] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:34,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 00:50:34,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2023-12-20 00:50:34,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718703846] [2023-12-20 00:50:34,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:34,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 00:50:34,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:34,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 00:50:34,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:34,728 INFO L87 Difference]: Start difference. First operand 270 states and 361 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-20 00:50:34,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:34,754 INFO L93 Difference]: Finished difference Result 421 states and 588 transitions. [2023-12-20 00:50:34,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 00:50:34,755 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 216 [2023-12-20 00:50:34,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:34,757 INFO L225 Difference]: With dead ends: 421 [2023-12-20 00:50:34,757 INFO L226 Difference]: Without dead ends: 277 [2023-12-20 00:50:34,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-20 00:50:34,758 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 7 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:34,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 763 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 00:50:34,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2023-12-20 00:50:34,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 275. [2023-12-20 00:50:34,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 218 states have (on average 1.2798165137614679) internal successors, (279), 222 states have internal predecessors, (279), 43 states have call successors, (43), 13 states have call predecessors, (43), 13 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-12-20 00:50:34,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 365 transitions. [2023-12-20 00:50:34,767 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 365 transitions. Word has length 216 [2023-12-20 00:50:34,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:34,768 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 365 transitions. [2023-12-20 00:50:34,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-20 00:50:34,768 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 365 transitions. [2023-12-20 00:50:34,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-12-20 00:50:34,770 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:34,770 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:34,787 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-20 00:50:34,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:50:34,977 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:34,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:34,978 INFO L85 PathProgramCache]: Analyzing trace with hash 375042395, now seen corresponding path program 1 times [2023-12-20 00:50:34,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:34,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47599901] [2023-12-20 00:50:34,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:34,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:34,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:35,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:35,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:35,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:35,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:50:35,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:50:35,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:50:35,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:50:35,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:50:35,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:50:35,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:35,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:50:35,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:50:35,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:50:35,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:50:35,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:50:35,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:50:35,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:50:35,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,100 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2023-12-20 00:50:35,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:35,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47599901] [2023-12-20 00:50:35,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47599901] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 00:50:35,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618527437] [2023-12-20 00:50:35,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:35,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:50:35,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:50:35,101 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) [2023-12-20 00:50:35,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-20 00:50:35,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-20 00:50:35,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:50:35,271 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2023-12-20 00:50:35,271 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 00:50:35,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618527437] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:35,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 00:50:35,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2023-12-20 00:50:35,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10746243] [2023-12-20 00:50:35,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:35,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 00:50:35,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:35,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 00:50:35,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:35,274 INFO L87 Difference]: Start difference. First operand 275 states and 365 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-20 00:50:35,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:35,298 INFO L93 Difference]: Finished difference Result 423 states and 586 transitions. [2023-12-20 00:50:35,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 00:50:35,299 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 224 [2023-12-20 00:50:35,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:35,300 INFO L225 Difference]: With dead ends: 423 [2023-12-20 00:50:35,300 INFO L226 Difference]: Without dead ends: 274 [2023-12-20 00:50:35,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-20 00:50:35,301 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 7 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:35,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 749 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 00:50:35,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2023-12-20 00:50:35,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2023-12-20 00:50:35,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 218 states have (on average 1.2660550458715596) internal successors, (276), 221 states have internal predecessors, (276), 42 states have call successors, (42), 13 states have call predecessors, (42), 13 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-20 00:50:35,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 360 transitions. [2023-12-20 00:50:35,311 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 360 transitions. Word has length 224 [2023-12-20 00:50:35,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:35,312 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 360 transitions. [2023-12-20 00:50:35,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-20 00:50:35,312 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 360 transitions. [2023-12-20 00:50:35,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-12-20 00:50:35,314 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:35,314 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:35,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-20 00:50:35,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:50:35,520 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:35,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:35,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1160943845, now seen corresponding path program 1 times [2023-12-20 00:50:35,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:35,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071433138] [2023-12-20 00:50:35,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:35,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:35,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:35,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:35,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:35,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:35,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:50:35,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:50:35,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:50:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:50:35,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:50:35,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:50:35,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:35,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:50:35,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:50:35,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:50:35,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:35,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:50:35,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:50:35,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:50:35,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:50:35,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 00:50:35,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,626 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2023-12-20 00:50:35,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:35,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071433138] [2023-12-20 00:50:35,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071433138] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:35,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:50:35,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 00:50:35,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277194704] [2023-12-20 00:50:35,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:35,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 00:50:35,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:35,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 00:50:35,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 00:50:35,627 INFO L87 Difference]: Start difference. First operand 274 states and 360 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-20 00:50:35,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:35,842 INFO L93 Difference]: Finished difference Result 421 states and 575 transitions. [2023-12-20 00:50:35,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 00:50:35,842 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 232 [2023-12-20 00:50:35,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:35,844 INFO L225 Difference]: With dead ends: 421 [2023-12-20 00:50:35,844 INFO L226 Difference]: Without dead ends: 273 [2023-12-20 00:50:35,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 00:50:35,845 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 63 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:35,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 470 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 00:50:35,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2023-12-20 00:50:35,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2023-12-20 00:50:35,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 218 states have (on average 1.261467889908257) internal successors, (275), 220 states have internal predecessors, (275), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2023-12-20 00:50:35,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 357 transitions. [2023-12-20 00:50:35,860 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 357 transitions. Word has length 232 [2023-12-20 00:50:35,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:35,861 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 357 transitions. [2023-12-20 00:50:35,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-20 00:50:35,861 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 357 transitions. [2023-12-20 00:50:35,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-12-20 00:50:35,862 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:35,862 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:35,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-20 00:50:35,863 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:35,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:35,863 INFO L85 PathProgramCache]: Analyzing trace with hash 363670474, now seen corresponding path program 1 times [2023-12-20 00:50:35,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:35,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70796728] [2023-12-20 00:50:35,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:35,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:35,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:35,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:35,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:50:35,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:50:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:50:35,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:50:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:35,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:50:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:50:36,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:36,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:50:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:50:36,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:50:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:50:36,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:50:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:50:36,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:50:36,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 00:50:36,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,048 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2023-12-20 00:50:36,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:36,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70796728] [2023-12-20 00:50:36,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70796728] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:36,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:50:36,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 00:50:36,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58357640] [2023-12-20 00:50:36,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:36,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 00:50:36,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:36,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 00:50:36,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:36,050 INFO L87 Difference]: Start difference. First operand 273 states and 357 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-20 00:50:36,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:36,424 INFO L93 Difference]: Finished difference Result 632 states and 855 transitions. [2023-12-20 00:50:36,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 00:50:36,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 234 [2023-12-20 00:50:36,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:36,428 INFO L225 Difference]: With dead ends: 632 [2023-12-20 00:50:36,428 INFO L226 Difference]: Without dead ends: 485 [2023-12-20 00:50:36,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-20 00:50:36,429 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 421 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:36,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 613 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 00:50:36,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2023-12-20 00:50:36,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 479. [2023-12-20 00:50:36,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 377 states have (on average 1.312997347480106) internal successors, (495), 379 states have internal predecessors, (495), 70 states have call successors, (70), 31 states have call predecessors, (70), 31 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-20 00:50:36,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 635 transitions. [2023-12-20 00:50:36,454 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 635 transitions. Word has length 234 [2023-12-20 00:50:36,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:36,454 INFO L495 AbstractCegarLoop]: Abstraction has 479 states and 635 transitions. [2023-12-20 00:50:36,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-20 00:50:36,454 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 635 transitions. [2023-12-20 00:50:36,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2023-12-20 00:50:36,456 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:36,456 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:36,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-20 00:50:36,456 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:36,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:36,457 INFO L85 PathProgramCache]: Analyzing trace with hash 22352055, now seen corresponding path program 1 times [2023-12-20 00:50:36,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:36,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188580575] [2023-12-20 00:50:36,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:36,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:36,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:36,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:36,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:50:36,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:50:36,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:50:36,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:50:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:50:36,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:50:36,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:36,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:50:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:50:36,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:50:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:36,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:50:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:50:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:50:36,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:50:36,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 00:50:36,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-20 00:50:36,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-20 00:50:36,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-20 00:50:36,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-20 00:50:36,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:36,609 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 643 trivial. 0 not checked. [2023-12-20 00:50:36,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:36,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188580575] [2023-12-20 00:50:36,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188580575] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:36,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:50:36,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 00:50:36,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336889282] [2023-12-20 00:50:36,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:36,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 00:50:36,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:36,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 00:50:36,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 00:50:36,611 INFO L87 Difference]: Start difference. First operand 479 states and 635 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-20 00:50:36,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:36,936 INFO L93 Difference]: Finished difference Result 1048 states and 1441 transitions. [2023-12-20 00:50:36,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 00:50:36,936 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 265 [2023-12-20 00:50:36,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:36,940 INFO L225 Difference]: With dead ends: 1048 [2023-12-20 00:50:36,940 INFO L226 Difference]: Without dead ends: 767 [2023-12-20 00:50:36,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:36,941 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 225 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:36,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 467 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 00:50:36,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2023-12-20 00:50:36,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 598. [2023-12-20 00:50:36,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 471 states have (on average 1.3227176220806793) internal successors, (623), 477 states have internal predecessors, (623), 85 states have call successors, (85), 41 states have call predecessors, (85), 41 states have return successors, (85), 81 states have call predecessors, (85), 85 states have call successors, (85) [2023-12-20 00:50:36,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 793 transitions. [2023-12-20 00:50:36,972 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 793 transitions. Word has length 265 [2023-12-20 00:50:36,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:36,972 INFO L495 AbstractCegarLoop]: Abstraction has 598 states and 793 transitions. [2023-12-20 00:50:36,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-20 00:50:36,972 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 793 transitions. [2023-12-20 00:50:36,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2023-12-20 00:50:36,975 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:36,975 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:36,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-20 00:50:36,975 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:36,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:36,975 INFO L85 PathProgramCache]: Analyzing trace with hash 569855187, now seen corresponding path program 1 times [2023-12-20 00:50:36,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:36,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71485915] [2023-12-20 00:50:36,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:36,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:36,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:37,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:37,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:37,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:37,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:50:37,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:50:37,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:50:37,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:50:37,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:50:37,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:50:37,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:37,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:50:37,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:50:37,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:50:37,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:37,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:50:37,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:50:37,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:50:37,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:50:37,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 00:50:37,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-20 00:50:37,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-20 00:50:37,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-12-20 00:50:37,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-12-20 00:50:37,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,090 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 643 trivial. 0 not checked. [2023-12-20 00:50:37,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:37,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71485915] [2023-12-20 00:50:37,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71485915] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:37,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:50:37,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 00:50:37,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562094898] [2023-12-20 00:50:37,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:37,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 00:50:37,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:37,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 00:50:37,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 00:50:37,092 INFO L87 Difference]: Start difference. First operand 598 states and 793 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-20 00:50:37,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:37,473 INFO L93 Difference]: Finished difference Result 1322 states and 1805 transitions. [2023-12-20 00:50:37,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 00:50:37,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 266 [2023-12-20 00:50:37,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:37,477 INFO L225 Difference]: With dead ends: 1322 [2023-12-20 00:50:37,477 INFO L226 Difference]: Without dead ends: 955 [2023-12-20 00:50:37,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:37,480 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 226 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:37,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 495 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 00:50:37,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2023-12-20 00:50:37,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 947. [2023-12-20 00:50:37,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 740 states have (on average 1.3513513513513513) internal successors, (1000), 754 states have internal predecessors, (1000), 139 states have call successors, (139), 67 states have call predecessors, (139), 67 states have return successors, (139), 129 states have call predecessors, (139), 139 states have call successors, (139) [2023-12-20 00:50:37,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1278 transitions. [2023-12-20 00:50:37,534 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1278 transitions. Word has length 266 [2023-12-20 00:50:37,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:37,536 INFO L495 AbstractCegarLoop]: Abstraction has 947 states and 1278 transitions. [2023-12-20 00:50:37,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-20 00:50:37,536 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1278 transitions. [2023-12-20 00:50:37,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2023-12-20 00:50:37,538 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:37,538 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:37,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-20 00:50:37,539 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:37,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:37,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1524149778, now seen corresponding path program 1 times [2023-12-20 00:50:37,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:37,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576092659] [2023-12-20 00:50:37,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:37,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:37,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:37,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:37,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:37,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:50:37,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:50:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:50:37,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:50:37,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:50:37,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:50:37,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:50:37,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:50:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:50:37,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:37,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:50:37,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:50:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:50:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:50:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 00:50:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-20 00:50:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 00:50:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-12-20 00:50:37,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-12-20 00:50:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:37,655 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 643 trivial. 0 not checked. [2023-12-20 00:50:37,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:37,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576092659] [2023-12-20 00:50:37,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576092659] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:37,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:50:37,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 00:50:37,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745581510] [2023-12-20 00:50:37,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:37,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 00:50:37,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:37,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 00:50:37,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 00:50:37,658 INFO L87 Difference]: Start difference. First operand 947 states and 1278 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-20 00:50:38,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:38,021 INFO L93 Difference]: Finished difference Result 2207 states and 3056 transitions. [2023-12-20 00:50:38,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 00:50:38,025 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 267 [2023-12-20 00:50:38,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:38,030 INFO L225 Difference]: With dead ends: 2207 [2023-12-20 00:50:38,030 INFO L226 Difference]: Without dead ends: 1531 [2023-12-20 00:50:38,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:38,032 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 226 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:38,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 522 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 00:50:38,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1531 states. [2023-12-20 00:50:38,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1531 to 1517. [2023-12-20 00:50:38,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1517 states, 1178 states have (on average 1.3786078098471986) internal successors, (1624), 1206 states have internal predecessors, (1624), 231 states have call successors, (231), 107 states have call predecessors, (231), 107 states have return successors, (231), 211 states have call predecessors, (231), 231 states have call successors, (231) [2023-12-20 00:50:38,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 2086 transitions. [2023-12-20 00:50:38,148 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 2086 transitions. Word has length 267 [2023-12-20 00:50:38,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:38,148 INFO L495 AbstractCegarLoop]: Abstraction has 1517 states and 2086 transitions. [2023-12-20 00:50:38,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-20 00:50:38,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 2086 transitions. [2023-12-20 00:50:38,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2023-12-20 00:50:38,151 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:38,151 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:38,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-20 00:50:38,151 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:38,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:38,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1129782992, now seen corresponding path program 1 times [2023-12-20 00:50:38,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:38,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21596102] [2023-12-20 00:50:38,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:38,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:38,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:38,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:38,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:38,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:38,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:38,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:38,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:38,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:50:38,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:38,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:50:38,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:38,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:50:38,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:38,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:50:38,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:38,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:50:38,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:38,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:50:38,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:38,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:38,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:38,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:50:38,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:38,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:50:38,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:38,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:50:38,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:38,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:38,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:38,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:50:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:38,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:50:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:38,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:50:38,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:38,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:50:38,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:38,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 00:50:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:38,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-20 00:50:38,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:38,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 00:50:38,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:38,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-12-20 00:50:38,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:38,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-12-20 00:50:38,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:38,319 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 30 proven. 6 refuted. 0 times theorem prover too weak. 607 trivial. 0 not checked. [2023-12-20 00:50:38,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:38,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21596102] [2023-12-20 00:50:38,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21596102] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 00:50:38,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143183916] [2023-12-20 00:50:38,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:38,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:50:38,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:50:38,324 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) [2023-12-20 00:50:38,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-20 00:50:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:38,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 870 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-20 00:50:38,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:50:38,504 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2023-12-20 00:50:38,504 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 00:50:38,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143183916] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:38,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 00:50:38,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2023-12-20 00:50:38,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400270065] [2023-12-20 00:50:38,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:38,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 00:50:38,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:38,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 00:50:38,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-20 00:50:38,506 INFO L87 Difference]: Start difference. First operand 1517 states and 2086 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-20 00:50:38,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:38,643 INFO L93 Difference]: Finished difference Result 2803 states and 3913 transitions. [2023-12-20 00:50:38,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 00:50:38,643 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 267 [2023-12-20 00:50:38,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:38,648 INFO L225 Difference]: With dead ends: 2803 [2023-12-20 00:50:38,648 INFO L226 Difference]: Without dead ends: 1517 [2023-12-20 00:50:38,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-20 00:50:38,651 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 51 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:38,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 666 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 00:50:38,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2023-12-20 00:50:38,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 1517. [2023-12-20 00:50:38,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1517 states, 1178 states have (on average 1.3582342954159592) internal successors, (1600), 1206 states have internal predecessors, (1600), 231 states have call successors, (231), 107 states have call predecessors, (231), 107 states have return successors, (231), 211 states have call predecessors, (231), 231 states have call successors, (231) [2023-12-20 00:50:38,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 2062 transitions. [2023-12-20 00:50:38,731 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 2062 transitions. Word has length 267 [2023-12-20 00:50:38,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:38,732 INFO L495 AbstractCegarLoop]: Abstraction has 1517 states and 2062 transitions. [2023-12-20 00:50:38,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-20 00:50:38,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 2062 transitions. [2023-12-20 00:50:38,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2023-12-20 00:50:38,734 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:38,734 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:38,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-20 00:50:38,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-12-20 00:50:38,941 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:38,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:38,941 INFO L85 PathProgramCache]: Analyzing trace with hash 336998433, now seen corresponding path program 1 times [2023-12-20 00:50:38,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:38,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673505007] [2023-12-20 00:50:38,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:38,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:38,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:39,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:39,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:39,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:39,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:50:39,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:50:39,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:50:39,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:50:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:50:39,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:50:39,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:50:39,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:50:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:50:39,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:39,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:50:39,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:50:39,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:50:39,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:50:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 00:50:39,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-20 00:50:39,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 00:50:39,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-20 00:50:39,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-12-20 00:50:39,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,130 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 621 trivial. 0 not checked. [2023-12-20 00:50:39,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:39,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673505007] [2023-12-20 00:50:39,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673505007] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 00:50:39,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403027759] [2023-12-20 00:50:39,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:39,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:50:39,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:50:39,132 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) [2023-12-20 00:50:39,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-20 00:50:39,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 871 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-20 00:50:39,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:50:39,324 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 611 trivial. 0 not checked. [2023-12-20 00:50:39,324 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 00:50:39,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403027759] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:39,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 00:50:39,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2023-12-20 00:50:39,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269877855] [2023-12-20 00:50:39,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:39,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 00:50:39,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:39,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 00:50:39,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-20 00:50:39,326 INFO L87 Difference]: Start difference. First operand 1517 states and 2062 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-20 00:50:39,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:39,458 INFO L93 Difference]: Finished difference Result 2803 states and 3857 transitions. [2023-12-20 00:50:39,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 00:50:39,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 268 [2023-12-20 00:50:39,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:39,464 INFO L225 Difference]: With dead ends: 2803 [2023-12-20 00:50:39,464 INFO L226 Difference]: Without dead ends: 1565 [2023-12-20 00:50:39,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-20 00:50:39,467 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 15 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:39,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 689 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 00:50:39,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2023-12-20 00:50:39,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1565. [2023-12-20 00:50:39,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1218 states have (on average 1.3596059113300492) internal successors, (1656), 1246 states have internal predecessors, (1656), 231 states have call successors, (231), 115 states have call predecessors, (231), 115 states have return successors, (231), 211 states have call predecessors, (231), 231 states have call successors, (231) [2023-12-20 00:50:39,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 2118 transitions. [2023-12-20 00:50:39,556 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 2118 transitions. Word has length 268 [2023-12-20 00:50:39,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:39,556 INFO L495 AbstractCegarLoop]: Abstraction has 1565 states and 2118 transitions. [2023-12-20 00:50:39,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-20 00:50:39,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 2118 transitions. [2023-12-20 00:50:39,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2023-12-20 00:50:39,559 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:39,559 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:39,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-20 00:50:39,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-12-20 00:50:39,766 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:39,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:39,766 INFO L85 PathProgramCache]: Analyzing trace with hash -714521494, now seen corresponding path program 1 times [2023-12-20 00:50:39,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:39,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557797901] [2023-12-20 00:50:39,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:39,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:39,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:39,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:39,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:39,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:50:39,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:50:39,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:50:39,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:50:39,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:39,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:50:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:40,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:50:40,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:40,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:40,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:40,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:50:40,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:40,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:50:40,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:40,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:50:40,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:40,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:40,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:50:40,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:40,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:50:40,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:40,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:50:40,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:40,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:50:40,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:40,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 00:50:40,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:40,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-20 00:50:40,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:40,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 00:50:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:40,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-20 00:50:40,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:40,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-20 00:50:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:40,038 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 643 trivial. 0 not checked. [2023-12-20 00:50:40,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:40,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557797901] [2023-12-20 00:50:40,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557797901] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:40,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:50:40,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:50:40,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816462777] [2023-12-20 00:50:40,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:40,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:50:40,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:40,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:50:40,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:50:40,040 INFO L87 Difference]: Start difference. First operand 1565 states and 2118 transitions. Second operand has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-20 00:50:40,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:40,664 INFO L93 Difference]: Finished difference Result 2387 states and 3465 transitions. [2023-12-20 00:50:40,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 00:50:40,665 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 269 [2023-12-20 00:50:40,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:40,673 INFO L225 Difference]: With dead ends: 2387 [2023-12-20 00:50:40,673 INFO L226 Difference]: Without dead ends: 2385 [2023-12-20 00:50:40,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-20 00:50:40,675 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 236 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 1482 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:40,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 1482 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 00:50:40,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2385 states. [2023-12-20 00:50:40,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2385 to 1613. [2023-12-20 00:50:40,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1613 states, 1250 states have (on average 1.3504) internal successors, (1688), 1286 states have internal predecessors, (1688), 239 states have call successors, (239), 123 states have call predecessors, (239), 123 states have return successors, (239), 211 states have call predecessors, (239), 239 states have call successors, (239) [2023-12-20 00:50:40,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1613 states to 1613 states and 2166 transitions. [2023-12-20 00:50:40,783 INFO L78 Accepts]: Start accepts. Automaton has 1613 states and 2166 transitions. Word has length 269 [2023-12-20 00:50:40,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:40,784 INFO L495 AbstractCegarLoop]: Abstraction has 1613 states and 2166 transitions. [2023-12-20 00:50:40,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-20 00:50:40,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1613 states and 2166 transitions. [2023-12-20 00:50:40,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2023-12-20 00:50:40,786 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:40,786 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:40,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-20 00:50:40,787 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:40,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:40,787 INFO L85 PathProgramCache]: Analyzing trace with hash -932347161, now seen corresponding path program 1 times [2023-12-20 00:50:40,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:40,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658679947] [2023-12-20 00:50:40,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:40,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:40,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:40,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:40,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:40,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:40,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:40,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:40,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:40,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:40,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:50:40,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:40,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:50:40,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:40,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:50:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:40,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:50:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:40,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:50:40,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:40,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:50:40,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:40,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:40,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:40,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:50:40,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:40,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:50:40,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:40,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:50:40,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:41,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:41,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:41,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:50:41,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:41,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:50:41,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:41,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:50:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:41,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:50:41,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:41,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 00:50:41,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:41,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-20 00:50:41,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:41,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 00:50:41,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:41,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-20 00:50:41,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:41,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-20 00:50:41,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:41,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-12-20 00:50:41,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:41,080 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 142 proven. 27 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2023-12-20 00:50:41,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:41,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658679947] [2023-12-20 00:50:41,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658679947] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 00:50:41,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327608101] [2023-12-20 00:50:41,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:41,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:50:41,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:50:41,194 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) [2023-12-20 00:50:41,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-20 00:50:41,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:41,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 896 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-20 00:50:41,369 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:50:41,510 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 251 proven. 37 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2023-12-20 00:50:41,510 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 00:50:41,759 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 146 proven. 23 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2023-12-20 00:50:41,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327608101] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 00:50:41,760 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 00:50:41,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 19 [2023-12-20 00:50:41,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919683661] [2023-12-20 00:50:41,760 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 00:50:41,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-20 00:50:41,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:41,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-20 00:50:41,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-12-20 00:50:41,762 INFO L87 Difference]: Start difference. First operand 1613 states and 2166 transitions. Second operand has 19 states, 19 states have (on average 7.894736842105263) internal successors, (150), 14 states have internal predecessors, (150), 5 states have call successors, (32), 5 states have call predecessors, (32), 9 states have return successors, (31), 8 states have call predecessors, (31), 5 states have call successors, (31) [2023-12-20 00:50:43,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:43,314 INFO L93 Difference]: Finished difference Result 4163 states and 5917 transitions. [2023-12-20 00:50:43,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-20 00:50:43,314 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 7.894736842105263) internal successors, (150), 14 states have internal predecessors, (150), 5 states have call successors, (32), 5 states have call predecessors, (32), 9 states have return successors, (31), 8 states have call predecessors, (31), 5 states have call successors, (31) Word has length 277 [2023-12-20 00:50:43,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:43,325 INFO L225 Difference]: With dead ends: 4163 [2023-12-20 00:50:43,325 INFO L226 Difference]: Without dead ends: 2829 [2023-12-20 00:50:43,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 639 GetRequests, 600 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=211, Invalid=1121, Unknown=0, NotChecked=0, Total=1332 [2023-12-20 00:50:43,329 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 350 mSDsluCounter, 2189 mSDsCounter, 0 mSdLazyCounter, 1898 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 2424 SdHoareTripleChecker+Invalid, 2017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 1898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:43,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 2424 Invalid, 2017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 1898 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 00:50:43,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2829 states. [2023-12-20 00:50:43,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2829 to 2399. [2023-12-20 00:50:43,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2399 states, 1853 states have (on average 1.3389098758769562) internal successors, (2481), 1905 states have internal predecessors, (2481), 356 states have call successors, (356), 183 states have call predecessors, (356), 189 states have return successors, (364), 318 states have call predecessors, (364), 356 states have call successors, (364) [2023-12-20 00:50:43,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2399 states to 2399 states and 3201 transitions. [2023-12-20 00:50:43,478 INFO L78 Accepts]: Start accepts. Automaton has 2399 states and 3201 transitions. Word has length 277 [2023-12-20 00:50:43,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:43,478 INFO L495 AbstractCegarLoop]: Abstraction has 2399 states and 3201 transitions. [2023-12-20 00:50:43,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.894736842105263) internal successors, (150), 14 states have internal predecessors, (150), 5 states have call successors, (32), 5 states have call predecessors, (32), 9 states have return successors, (31), 8 states have call predecessors, (31), 5 states have call successors, (31) [2023-12-20 00:50:43,478 INFO L276 IsEmpty]: Start isEmpty. Operand 2399 states and 3201 transitions. [2023-12-20 00:50:43,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2023-12-20 00:50:43,482 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:43,482 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:43,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-20 00:50:43,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:50:43,688 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:43,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:43,689 INFO L85 PathProgramCache]: Analyzing trace with hash 29266856, now seen corresponding path program 1 times [2023-12-20 00:50:43,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:43,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580978351] [2023-12-20 00:50:43,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:43,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:43,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:43,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:43,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:43,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:43,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:43,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:43,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:43,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:43,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:43,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:50:43,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:43,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:50:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:43,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:50:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:43,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:50:43,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:43,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:50:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:43,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:50:43,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:43,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:43,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:43,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:50:43,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:43,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:50:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:43,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:50:43,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:43,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:43,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:43,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:50:43,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:43,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:50:43,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:43,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:50:43,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:43,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:50:43,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:43,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 00:50:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:43,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-20 00:50:43,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:43,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 00:50:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:43,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-20 00:50:43,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:43,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-20 00:50:43,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:43,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-12-20 00:50:43,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:43,808 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2023-12-20 00:50:43,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:43,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580978351] [2023-12-20 00:50:43,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580978351] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 00:50:43,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320900934] [2023-12-20 00:50:43,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:43,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:50:43,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:50:43,810 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 00:50:43,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-20 00:50:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:43,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 895 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-20 00:50:44,001 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:50:44,011 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 611 trivial. 0 not checked. [2023-12-20 00:50:44,011 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 00:50:44,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320900934] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:44,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 00:50:44,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2023-12-20 00:50:44,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249615367] [2023-12-20 00:50:44,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:44,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 00:50:44,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:44,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 00:50:44,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:44,013 INFO L87 Difference]: Start difference. First operand 2399 states and 3201 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-20 00:50:44,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:44,167 INFO L93 Difference]: Finished difference Result 4632 states and 6279 transitions. [2023-12-20 00:50:44,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 00:50:44,168 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 277 [2023-12-20 00:50:44,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:44,178 INFO L225 Difference]: With dead ends: 4632 [2023-12-20 00:50:44,178 INFO L226 Difference]: Without dead ends: 2335 [2023-12-20 00:50:44,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-20 00:50:44,184 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 11 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:44,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 689 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 00:50:44,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2335 states. [2023-12-20 00:50:44,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2335 to 2335. [2023-12-20 00:50:44,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 1809 states have (on average 1.3217247097844114) internal successors, (2391), 1861 states have internal predecessors, (2391), 340 states have call successors, (340), 183 states have call predecessors, (340), 185 states have return successors, (344), 298 states have call predecessors, (344), 340 states have call successors, (344) [2023-12-20 00:50:44,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 3075 transitions. [2023-12-20 00:50:44,319 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 3075 transitions. Word has length 277 [2023-12-20 00:50:44,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:44,320 INFO L495 AbstractCegarLoop]: Abstraction has 2335 states and 3075 transitions. [2023-12-20 00:50:44,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-20 00:50:44,320 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 3075 transitions. [2023-12-20 00:50:44,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2023-12-20 00:50:44,322 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:44,323 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:44,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-20 00:50:44,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:50:44,532 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:44,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:44,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1524886429, now seen corresponding path program 1 times [2023-12-20 00:50:44,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:44,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716598877] [2023-12-20 00:50:44,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:44,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:44,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:44,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:44,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:44,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:44,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:44,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:44,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:44,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:44,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:50:44,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:44,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:50:44,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:44,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:50:44,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:44,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:50:44,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:44,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:50:44,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:44,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:50:44,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:44,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:44,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:50:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:44,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:50:44,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:44,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:50:44,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:44,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 00:50:44,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:44,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-20 00:50:44,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:44,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-20 00:50:44,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:44,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-20 00:50:44,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:44,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-12-20 00:50:44,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:44,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-20 00:50:44,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:44,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-20 00:50:44,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:44,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-12-20 00:50:44,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:44,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-20 00:50:44,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:44,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-20 00:50:44,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:44,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2023-12-20 00:50:44,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:44,682 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 121 proven. 19 refuted. 0 times theorem prover too weak. 554 trivial. 0 not checked. [2023-12-20 00:50:44,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:44,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716598877] [2023-12-20 00:50:44,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716598877] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 00:50:44,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096278195] [2023-12-20 00:50:44,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:44,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:50:44,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:50:44,684 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 00:50:44,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-20 00:50:44,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:44,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 896 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-20 00:50:44,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:50:44,874 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2023-12-20 00:50:44,875 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 00:50:44,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096278195] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:44,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 00:50:44,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2023-12-20 00:50:44,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254878194] [2023-12-20 00:50:44,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:44,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 00:50:44,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:44,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 00:50:44,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:44,876 INFO L87 Difference]: Start difference. First operand 2335 states and 3075 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-20 00:50:45,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:45,046 INFO L93 Difference]: Finished difference Result 4414 states and 5920 transitions. [2023-12-20 00:50:45,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 00:50:45,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 280 [2023-12-20 00:50:45,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:45,054 INFO L225 Difference]: With dead ends: 4414 [2023-12-20 00:50:45,054 INFO L226 Difference]: Without dead ends: 2163 [2023-12-20 00:50:45,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-20 00:50:45,058 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 8 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:45,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 692 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 00:50:45,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2163 states. [2023-12-20 00:50:45,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2163 to 2163. [2023-12-20 00:50:45,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2163 states, 1667 states have (on average 1.316136772645471) internal successors, (2194), 1719 states have internal predecessors, (2194), 323 states have call successors, (323), 172 states have call predecessors, (323), 172 states have return successors, (323), 279 states have call predecessors, (323), 323 states have call successors, (323) [2023-12-20 00:50:45,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2163 states to 2163 states and 2840 transitions. [2023-12-20 00:50:45,178 INFO L78 Accepts]: Start accepts. Automaton has 2163 states and 2840 transitions. Word has length 280 [2023-12-20 00:50:45,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:45,179 INFO L495 AbstractCegarLoop]: Abstraction has 2163 states and 2840 transitions. [2023-12-20 00:50:45,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-20 00:50:45,179 INFO L276 IsEmpty]: Start isEmpty. Operand 2163 states and 2840 transitions. [2023-12-20 00:50:45,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2023-12-20 00:50:45,181 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:45,181 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 8, 8, 8, 7, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:45,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-20 00:50:45,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:50:45,387 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:45,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:45,388 INFO L85 PathProgramCache]: Analyzing trace with hash 338938814, now seen corresponding path program 1 times [2023-12-20 00:50:45,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:45,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808565078] [2023-12-20 00:50:45,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:45,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:45,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:45,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:45,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:45,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:45,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:45,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:45,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:50:45,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:45,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:50:45,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:45,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:50:45,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:45,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:50:45,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:45,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:50:45,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:45,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:50:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:45,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:45,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:45,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:50:45,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:45,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:50:45,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:45,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:50:45,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:45,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:45,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:45,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:50:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:45,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:50:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:45,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:50:45,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:45,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:50:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:45,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 00:50:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:45,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-20 00:50:45,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:45,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 00:50:45,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:45,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-20 00:50:45,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:45,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-20 00:50:45,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:45,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-12-20 00:50:45,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:45,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-20 00:50:45,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:45,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-20 00:50:45,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:45,631 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 719 trivial. 0 not checked. [2023-12-20 00:50:45,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:45,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808565078] [2023-12-20 00:50:45,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808565078] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 00:50:45,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966096799] [2023-12-20 00:50:45,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:45,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:50:45,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:50:45,640 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 00:50:45,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-20 00:50:45,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:45,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 943 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-20 00:50:45,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:50:45,961 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2023-12-20 00:50:45,962 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 00:50:45,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966096799] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:45,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 00:50:45,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2023-12-20 00:50:45,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009793701] [2023-12-20 00:50:45,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:45,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 00:50:45,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:45,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 00:50:45,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=305, Unknown=0, NotChecked=0, Total=342 [2023-12-20 00:50:45,964 INFO L87 Difference]: Start difference. First operand 2163 states and 2840 transitions. Second operand has 10 states, 10 states have (on average 10.7) internal successors, (107), 9 states have internal predecessors, (107), 4 states have call successors, (20), 4 states have call predecessors, (20), 5 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-20 00:50:46,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:46,686 INFO L93 Difference]: Finished difference Result 7089 states and 9250 transitions. [2023-12-20 00:50:46,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-20 00:50:46,687 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 9 states have internal predecessors, (107), 4 states have call successors, (20), 4 states have call predecessors, (20), 5 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) Word has length 292 [2023-12-20 00:50:46,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:46,714 INFO L225 Difference]: With dead ends: 7089 [2023-12-20 00:50:46,714 INFO L226 Difference]: Without dead ends: 5491 [2023-12-20 00:50:46,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=928, Unknown=0, NotChecked=0, Total=1056 [2023-12-20 00:50:46,719 INFO L413 NwaCegarLoop]: 387 mSDtfsCounter, 634 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 2693 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:46,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [639 Valid, 2693 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 00:50:46,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5491 states. [2023-12-20 00:50:47,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5491 to 5147. [2023-12-20 00:50:47,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5147 states, 3928 states have (on average 1.3021894093686355) internal successors, (5115), 4056 states have internal predecessors, (5115), 787 states have call successors, (787), 431 states have call predecessors, (787), 431 states have return successors, (787), 667 states have call predecessors, (787), 787 states have call successors, (787) [2023-12-20 00:50:47,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5147 states to 5147 states and 6689 transitions. [2023-12-20 00:50:47,073 INFO L78 Accepts]: Start accepts. Automaton has 5147 states and 6689 transitions. Word has length 292 [2023-12-20 00:50:47,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:47,073 INFO L495 AbstractCegarLoop]: Abstraction has 5147 states and 6689 transitions. [2023-12-20 00:50:47,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 9 states have internal predecessors, (107), 4 states have call successors, (20), 4 states have call predecessors, (20), 5 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-20 00:50:47,073 INFO L276 IsEmpty]: Start isEmpty. Operand 5147 states and 6689 transitions. [2023-12-20 00:50:47,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-12-20 00:50:47,075 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:47,075 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:47,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-20 00:50:47,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-12-20 00:50:47,282 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:47,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:47,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1976844183, now seen corresponding path program 1 times [2023-12-20 00:50:47,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:47,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681896180] [2023-12-20 00:50:47,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:47,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:47,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:47,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:47,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:47,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:47,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:47,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:47,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:47,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:47,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:47,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:50:47,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:47,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:50:47,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:47,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:50:47,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:47,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:50:47,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:47,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:50:47,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:47,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:50:47,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:47,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:47,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:47,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:50:47,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:47,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:50:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:47,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:50:47,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:47,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:47,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:47,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:50:47,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:47,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:50:47,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:47,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:50:47,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:47,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:50:47,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:47,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 00:50:47,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:47,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-20 00:50:47,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:47,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 00:50:47,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:47,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-20 00:50:47,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:47,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-20 00:50:47,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:47,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-12-20 00:50:47,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:47,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-12-20 00:50:47,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:47,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-12-20 00:50:47,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:47,604 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 764 trivial. 0 not checked. [2023-12-20 00:50:47,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:47,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681896180] [2023-12-20 00:50:47,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681896180] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 00:50:47,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197236479] [2023-12-20 00:50:47,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:47,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:50:47,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:50:47,605 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 00:50:47,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-20 00:50:47,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:47,779 INFO L262 TraceCheckSpWp]: Trace formula consists of 954 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-20 00:50:47,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:50:47,865 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2023-12-20 00:50:47,866 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 00:50:47,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197236479] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:47,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 00:50:47,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 12 [2023-12-20 00:50:47,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673641586] [2023-12-20 00:50:47,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:47,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 00:50:47,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:47,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 00:50:47,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-12-20 00:50:47,868 INFO L87 Difference]: Start difference. First operand 5147 states and 6689 transitions. Second operand has 10 states, 10 states have (on average 11.3) internal successors, (113), 9 states have internal predecessors, (113), 4 states have call successors, (20), 4 states have call predecessors, (20), 5 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-20 00:50:48,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:48,738 INFO L93 Difference]: Finished difference Result 11021 states and 14599 transitions. [2023-12-20 00:50:48,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-20 00:50:48,739 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 9 states have internal predecessors, (113), 4 states have call successors, (20), 4 states have call predecessors, (20), 5 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) Word has length 298 [2023-12-20 00:50:48,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:48,761 INFO L225 Difference]: With dead ends: 11021 [2023-12-20 00:50:48,762 INFO L226 Difference]: Without dead ends: 6347 [2023-12-20 00:50:48,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=536, Unknown=0, NotChecked=0, Total=650 [2023-12-20 00:50:48,770 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 710 mSDsluCounter, 2580 mSDsCounter, 0 mSdLazyCounter, 935 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 3016 SdHoareTripleChecker+Invalid, 1021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:48,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [725 Valid, 3016 Invalid, 1021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 935 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 00:50:48,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6347 states. [2023-12-20 00:50:49,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6347 to 5147. [2023-12-20 00:50:49,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5147 states, 3928 states have (on average 1.2981160896130346) internal successors, (5099), 4056 states have internal predecessors, (5099), 787 states have call successors, (787), 431 states have call predecessors, (787), 431 states have return successors, (787), 667 states have call predecessors, (787), 787 states have call successors, (787) [2023-12-20 00:50:49,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5147 states to 5147 states and 6673 transitions. [2023-12-20 00:50:49,146 INFO L78 Accepts]: Start accepts. Automaton has 5147 states and 6673 transitions. Word has length 298 [2023-12-20 00:50:49,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:49,147 INFO L495 AbstractCegarLoop]: Abstraction has 5147 states and 6673 transitions. [2023-12-20 00:50:49,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 9 states have internal predecessors, (113), 4 states have call successors, (20), 4 states have call predecessors, (20), 5 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-20 00:50:49,147 INFO L276 IsEmpty]: Start isEmpty. Operand 5147 states and 6673 transitions. [2023-12-20 00:50:49,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-12-20 00:50:49,149 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:49,150 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:49,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-20 00:50:49,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-12-20 00:50:49,356 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:49,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:49,356 INFO L85 PathProgramCache]: Analyzing trace with hash 2110857689, now seen corresponding path program 1 times [2023-12-20 00:50:49,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:49,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552328520] [2023-12-20 00:50:49,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:49,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:49,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:49,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:49,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:49,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:49,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:49,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:49,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:49,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:49,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:50:49,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:49,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:50:49,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:49,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:50:49,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:49,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:50:49,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:49,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:50:49,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:49,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:50:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:49,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:49,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:49,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:50:49,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:49,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:50:49,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:49,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:50:49,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:49,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:49,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:49,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:50:49,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:49,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:50:49,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:49,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:50:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:49,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:50:49,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:49,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 00:50:49,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:49,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-20 00:50:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:49,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 00:50:49,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:49,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-20 00:50:49,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:49,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-20 00:50:49,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:49,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-12-20 00:50:49,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:49,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-12-20 00:50:49,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:49,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-12-20 00:50:49,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:49,495 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 774 trivial. 0 not checked. [2023-12-20 00:50:49,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:49,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552328520] [2023-12-20 00:50:49,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552328520] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:49,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:50:49,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 00:50:49,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034728640] [2023-12-20 00:50:49,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:49,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 00:50:49,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:49,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 00:50:49,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 00:50:49,497 INFO L87 Difference]: Start difference. First operand 5147 states and 6673 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 5 states have internal predecessors, (95), 5 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-20 00:50:50,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:50,087 INFO L93 Difference]: Finished difference Result 10921 states and 14574 transitions. [2023-12-20 00:50:50,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 00:50:50,088 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 5 states have internal predecessors, (95), 5 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 298 [2023-12-20 00:50:50,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:50,102 INFO L225 Difference]: With dead ends: 10921 [2023-12-20 00:50:50,102 INFO L226 Difference]: Without dead ends: 6387 [2023-12-20 00:50:50,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 00:50:50,109 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 178 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:50,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 801 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 00:50:50,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6387 states. [2023-12-20 00:50:50,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6387 to 5439. [2023-12-20 00:50:50,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5439 states, 4168 states have (on average 1.3049424184261036) internal successors, (5439), 4296 states have internal predecessors, (5439), 839 states have call successors, (839), 431 states have call predecessors, (839), 431 states have return successors, (839), 719 states have call predecessors, (839), 839 states have call successors, (839) [2023-12-20 00:50:50,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5439 states to 5439 states and 7117 transitions. [2023-12-20 00:50:50,383 INFO L78 Accepts]: Start accepts. Automaton has 5439 states and 7117 transitions. Word has length 298 [2023-12-20 00:50:50,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:50,383 INFO L495 AbstractCegarLoop]: Abstraction has 5439 states and 7117 transitions. [2023-12-20 00:50:50,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 5 states have internal predecessors, (95), 5 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-20 00:50:50,383 INFO L276 IsEmpty]: Start isEmpty. Operand 5439 states and 7117 transitions. [2023-12-20 00:50:50,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-12-20 00:50:50,385 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:50,386 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:50,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-20 00:50:50,386 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:50,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:50,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1089789335, now seen corresponding path program 1 times [2023-12-20 00:50:50,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:50,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071905497] [2023-12-20 00:50:50,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:50,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:50,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:50,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:50,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:50,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:50,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:50,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:50,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:50,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:50,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:50,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:50:50,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:50,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:50:50,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:50,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:50:50,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:50,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:50:50,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:50,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:50:50,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:50,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:50:50,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:50,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:50,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:50,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:50:50,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:50,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:50:50,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:50,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:50:50,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:50,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:50,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:50,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:50:50,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:50,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:50:50,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:50,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:50:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:50,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:50:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:50,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 00:50:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:50,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-20 00:50:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:50,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 00:50:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:50,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-20 00:50:50,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:50,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-20 00:50:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:50,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-12-20 00:50:50,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:50,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-12-20 00:50:50,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:50,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-12-20 00:50:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:50,634 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 764 trivial. 0 not checked. [2023-12-20 00:50:50,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:50,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071905497] [2023-12-20 00:50:50,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071905497] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 00:50:50,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776404239] [2023-12-20 00:50:50,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:50,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:50:50,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:50:50,635 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 00:50:50,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-20 00:50:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:50,794 INFO L262 TraceCheckSpWp]: Trace formula consists of 954 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-20 00:50:50,798 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:50:50,915 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2023-12-20 00:50:50,915 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 00:50:50,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776404239] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:50,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 00:50:50,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 18 [2023-12-20 00:50:50,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113713955] [2023-12-20 00:50:50,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:50,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 00:50:50,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:50,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 00:50:50,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2023-12-20 00:50:50,917 INFO L87 Difference]: Start difference. First operand 5439 states and 7117 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-20 00:50:51,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:51,624 INFO L93 Difference]: Finished difference Result 13807 states and 18395 transitions. [2023-12-20 00:50:51,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-20 00:50:51,625 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 298 [2023-12-20 00:50:51,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:51,645 INFO L225 Difference]: With dead ends: 13807 [2023-12-20 00:50:51,645 INFO L226 Difference]: Without dead ends: 8877 [2023-12-20 00:50:51,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2023-12-20 00:50:51,655 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 172 mSDsluCounter, 1619 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 2023 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:51,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 2023 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 00:50:51,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8877 states. [2023-12-20 00:50:52,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8877 to 6567. [2023-12-20 00:50:52,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6567 states, 5028 states have (on average 1.3001193317422435) internal successors, (6537), 5184 states have internal predecessors, (6537), 1015 states have call successors, (1015), 523 states have call predecessors, (1015), 523 states have return successors, (1015), 867 states have call predecessors, (1015), 1015 states have call successors, (1015) [2023-12-20 00:50:52,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6567 states to 6567 states and 8567 transitions. [2023-12-20 00:50:52,127 INFO L78 Accepts]: Start accepts. Automaton has 6567 states and 8567 transitions. Word has length 298 [2023-12-20 00:50:52,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:52,127 INFO L495 AbstractCegarLoop]: Abstraction has 6567 states and 8567 transitions. [2023-12-20 00:50:52,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-20 00:50:52,127 INFO L276 IsEmpty]: Start isEmpty. Operand 6567 states and 8567 transitions. [2023-12-20 00:50:52,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-12-20 00:50:52,131 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:52,131 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:52,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-20 00:50:52,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-12-20 00:50:52,337 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:52,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:52,337 INFO L85 PathProgramCache]: Analyzing trace with hash -821253223, now seen corresponding path program 1 times [2023-12-20 00:50:52,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:52,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954734083] [2023-12-20 00:50:52,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:52,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:52,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:52,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:52,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:52,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:52,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:52,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:52,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:52,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:52,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:52,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:50:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:52,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:50:52,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:52,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:50:52,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:52,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:50:52,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:52,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:50:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:52,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:50:52,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:52,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:52,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:52,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:50:52,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:52,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:50:52,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:52,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:50:52,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:52,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:52,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:52,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:50:52,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:52,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:50:52,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:52,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:50:52,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:52,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:50:52,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:52,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 00:50:52,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:52,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-20 00:50:52,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:52,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 00:50:52,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:52,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-20 00:50:52,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:52,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-20 00:50:52,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:52,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-12-20 00:50:52,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:52,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-12-20 00:50:52,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:52,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-12-20 00:50:52,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:52,460 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 774 trivial. 0 not checked. [2023-12-20 00:50:52,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:52,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954734083] [2023-12-20 00:50:52,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954734083] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:52,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:50:52,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 00:50:52,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967058828] [2023-12-20 00:50:52,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:52,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 00:50:52,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:52,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 00:50:52,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:52,462 INFO L87 Difference]: Start difference. First operand 6567 states and 8567 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-20 00:50:53,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:53,257 INFO L93 Difference]: Finished difference Result 13453 states and 17644 transitions. [2023-12-20 00:50:53,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 00:50:53,257 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 298 [2023-12-20 00:50:53,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:53,275 INFO L225 Difference]: With dead ends: 13453 [2023-12-20 00:50:53,275 INFO L226 Difference]: Without dead ends: 7675 [2023-12-20 00:50:53,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-20 00:50:53,284 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 311 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:53,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 561 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 00:50:53,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7675 states. [2023-12-20 00:50:53,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7675 to 6707. [2023-12-20 00:50:53,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6707 states, 5135 states have (on average 1.308666017526777) internal successors, (6720), 5291 states have internal predecessors, (6720), 1047 states have call successors, (1047), 524 states have call predecessors, (1047), 524 states have return successors, (1047), 899 states have call predecessors, (1047), 1047 states have call successors, (1047) [2023-12-20 00:50:53,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6707 states to 6707 states and 8814 transitions. [2023-12-20 00:50:53,680 INFO L78 Accepts]: Start accepts. Automaton has 6707 states and 8814 transitions. Word has length 298 [2023-12-20 00:50:53,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:53,681 INFO L495 AbstractCegarLoop]: Abstraction has 6707 states and 8814 transitions. [2023-12-20 00:50:53,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-20 00:50:53,681 INFO L276 IsEmpty]: Start isEmpty. Operand 6707 states and 8814 transitions. [2023-12-20 00:50:53,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2023-12-20 00:50:53,683 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:53,683 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:53,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-20 00:50:53,684 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:53,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:53,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1012381897, now seen corresponding path program 1 times [2023-12-20 00:50:53,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:53,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413549856] [2023-12-20 00:50:53,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:53,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:53,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:53,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:53,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:53,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:53,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:53,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:53,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:53,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:53,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:53,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:50:53,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:53,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:50:53,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:53,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:50:53,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:53,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:50:53,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:53,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:50:53,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:53,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:50:53,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:53,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:53,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:53,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:50:53,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:53,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:50:53,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:53,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:50:53,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:53,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:53,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:53,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:50:53,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:53,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:50:53,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:53,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:50:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:53,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:50:53,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:53,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 00:50:53,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:53,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-20 00:50:53,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:53,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 00:50:53,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:53,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-20 00:50:53,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:53,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-20 00:50:53,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:53,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-12-20 00:50:53,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:53,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-20 00:50:53,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:53,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2023-12-20 00:50:53,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:53,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2023-12-20 00:50:53,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:53,784 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2023-12-20 00:50:53,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:53,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413549856] [2023-12-20 00:50:53,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413549856] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:50:53,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:50:53,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 00:50:53,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708030440] [2023-12-20 00:50:53,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:50:53,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 00:50:53,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:53,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 00:50:53,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:50:53,787 INFO L87 Difference]: Start difference. First operand 6707 states and 8814 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-20 00:50:54,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:50:54,514 INFO L93 Difference]: Finished difference Result 11731 states and 15493 transitions. [2023-12-20 00:50:54,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 00:50:54,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 305 [2023-12-20 00:50:54,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:50:54,528 INFO L225 Difference]: With dead ends: 11731 [2023-12-20 00:50:54,528 INFO L226 Difference]: Without dead ends: 5817 [2023-12-20 00:50:54,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-20 00:50:54,535 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 478 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 00:50:54,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 787 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 00:50:54,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5817 states. [2023-12-20 00:50:54,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5817 to 5789. [2023-12-20 00:50:54,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5789 states, 4437 states have (on average 1.2943430245661482) internal successors, (5743), 4569 states have internal predecessors, (5743), 903 states have call successors, (903), 448 states have call predecessors, (903), 448 states have return successors, (903), 771 states have call predecessors, (903), 903 states have call successors, (903) [2023-12-20 00:50:54,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5789 states to 5789 states and 7549 transitions. [2023-12-20 00:50:54,866 INFO L78 Accepts]: Start accepts. Automaton has 5789 states and 7549 transitions. Word has length 305 [2023-12-20 00:50:54,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:50:54,866 INFO L495 AbstractCegarLoop]: Abstraction has 5789 states and 7549 transitions. [2023-12-20 00:50:54,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-20 00:50:54,867 INFO L276 IsEmpty]: Start isEmpty. Operand 5789 states and 7549 transitions. [2023-12-20 00:50:54,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2023-12-20 00:50:54,874 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:50:54,875 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:50:54,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-20 00:50:54,875 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:50:54,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:50:54,875 INFO L85 PathProgramCache]: Analyzing trace with hash 962094426, now seen corresponding path program 1 times [2023-12-20 00:50:54,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:50:54,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868409727] [2023-12-20 00:50:54,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:54,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:50:54,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:50:55,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:50:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:50:55,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:50:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:50:55,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:50:55,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:50:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:50:55,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:50:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:50:55,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:55,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:50:55,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:50:55,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:50:55,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:50:55,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:50:55,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:50:55,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:50:55,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:50:55,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 00:50:55,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-20 00:50:55,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 00:50:55,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-20 00:50:55,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-20 00:50:55,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-12-20 00:50:55,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-20 00:50:55,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2023-12-20 00:50:55,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2023-12-20 00:50:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2023-12-20 00:50:55,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-12-20 00:50:55,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-12-20 00:50:55,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2023-12-20 00:50:55,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2023-12-20 00:50:55,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,476 INFO L134 CoverageAnalysis]: Checked inductivity of 886 backedges. 40 proven. 186 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2023-12-20 00:50:55,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:50:55,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868409727] [2023-12-20 00:50:55,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868409727] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 00:50:55,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120763484] [2023-12-20 00:50:55,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:50:55,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:50:55,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:50:55,478 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 00:50:55,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-20 00:50:55,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:50:55,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 1223 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-20 00:50:55,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:50:56,031 INFO L134 CoverageAnalysis]: Checked inductivity of 886 backedges. 198 proven. 108 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2023-12-20 00:50:56,031 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 00:50:56,499 INFO L134 CoverageAnalysis]: Checked inductivity of 886 backedges. 33 proven. 71 refuted. 0 times theorem prover too weak. 782 trivial. 0 not checked. [2023-12-20 00:50:56,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120763484] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 00:50:56,499 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 00:50:56,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 30 [2023-12-20 00:50:56,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174758670] [2023-12-20 00:50:56,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 00:50:56,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-20 00:50:56,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:50:56,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-20 00:50:56,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=789, Unknown=0, NotChecked=0, Total=870 [2023-12-20 00:50:56,502 INFO L87 Difference]: Start difference. First operand 5789 states and 7549 transitions. Second operand has 30 states, 30 states have (on average 8.533333333333333) internal successors, (256), 24 states have internal predecessors, (256), 7 states have call successors, (62), 9 states have call predecessors, (62), 16 states have return successors, (63), 11 states have call predecessors, (63), 7 states have call successors, (63) [2023-12-20 00:51:04,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:51:04,453 INFO L93 Difference]: Finished difference Result 31228 states and 42308 transitions. [2023-12-20 00:51:04,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2023-12-20 00:51:04,454 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 8.533333333333333) internal successors, (256), 24 states have internal predecessors, (256), 7 states have call successors, (62), 9 states have call predecessors, (62), 16 states have return successors, (63), 11 states have call predecessors, (63), 7 states have call successors, (63) Word has length 348 [2023-12-20 00:51:04,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:51:04,526 INFO L225 Difference]: With dead ends: 31228 [2023-12-20 00:51:04,526 INFO L226 Difference]: Without dead ends: 25770 [2023-12-20 00:51:04,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 864 GetRequests, 751 SyntacticMatches, 2 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3463 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1350, Invalid=11306, Unknown=0, NotChecked=0, Total=12656 [2023-12-20 00:51:04,541 INFO L413 NwaCegarLoop]: 738 mSDtfsCounter, 4095 mSDsluCounter, 10813 mSDsCounter, 0 mSdLazyCounter, 8053 mSolverCounterSat, 1611 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4095 SdHoareTripleChecker+Valid, 11551 SdHoareTripleChecker+Invalid, 9664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1611 IncrementalHoareTripleChecker+Valid, 8053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-12-20 00:51:04,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4095 Valid, 11551 Invalid, 9664 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1611 Valid, 8053 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-12-20 00:51:04,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25770 states. [2023-12-20 00:51:06,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25770 to 17204. [2023-12-20 00:51:06,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17204 states, 13106 states have (on average 1.2865862963528154) internal successors, (16862), 13370 states have internal predecessors, (16862), 2760 states have call successors, (2760), 1207 states have call predecessors, (2760), 1337 states have return successors, (3004), 2626 states have call predecessors, (3004), 2760 states have call successors, (3004) [2023-12-20 00:51:06,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17204 states to 17204 states and 22626 transitions. [2023-12-20 00:51:06,170 INFO L78 Accepts]: Start accepts. Automaton has 17204 states and 22626 transitions. Word has length 348 [2023-12-20 00:51:06,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:51:06,171 INFO L495 AbstractCegarLoop]: Abstraction has 17204 states and 22626 transitions. [2023-12-20 00:51:06,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 8.533333333333333) internal successors, (256), 24 states have internal predecessors, (256), 7 states have call successors, (62), 9 states have call predecessors, (62), 16 states have return successors, (63), 11 states have call predecessors, (63), 7 states have call successors, (63) [2023-12-20 00:51:06,171 INFO L276 IsEmpty]: Start isEmpty. Operand 17204 states and 22626 transitions. [2023-12-20 00:51:06,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2023-12-20 00:51:06,189 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:51:06,189 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:51:06,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-20 00:51:06,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-12-20 00:51:06,395 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:51:06,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:51:06,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1842134330, now seen corresponding path program 1 times [2023-12-20 00:51:06,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:51:06,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673460823] [2023-12-20 00:51:06,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:51:06,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:51:06,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:51:06,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:51:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:51:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:51:06,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:51:06,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:51:06,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:51:06,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:51:06,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:51:06,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:51:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:51:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:51:06,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:51:06,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:51:06,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:51:06,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:51:06,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:51:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:51:06,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:51:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 00:51:06,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-20 00:51:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 00:51:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-20 00:51:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-20 00:51:06,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-12-20 00:51:06,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-20 00:51:06,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2023-12-20 00:51:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2023-12-20 00:51:06,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2023-12-20 00:51:06,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-12-20 00:51:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-12-20 00:51:06,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2023-12-20 00:51:06,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2023-12-20 00:51:06,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,510 INFO L134 CoverageAnalysis]: Checked inductivity of 886 backedges. 52 proven. 10 refuted. 0 times theorem prover too weak. 824 trivial. 0 not checked. [2023-12-20 00:51:06,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:51:06,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673460823] [2023-12-20 00:51:06,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673460823] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 00:51:06,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505738961] [2023-12-20 00:51:06,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:51:06,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:51:06,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:51:06,511 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 00:51:06,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-20 00:51:06,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:06,718 INFO L262 TraceCheckSpWp]: Trace formula consists of 1221 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-20 00:51:06,722 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:51:06,732 INFO L134 CoverageAnalysis]: Checked inductivity of 886 backedges. 249 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2023-12-20 00:51:06,732 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 00:51:06,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1505738961] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:51:06,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 00:51:06,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2023-12-20 00:51:06,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841228916] [2023-12-20 00:51:06,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:51:06,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 00:51:06,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:51:06,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 00:51:06,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:51:06,734 INFO L87 Difference]: Start difference. First operand 17204 states and 22626 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-12-20 00:51:08,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:51:08,015 INFO L93 Difference]: Finished difference Result 34732 states and 45698 transitions. [2023-12-20 00:51:08,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 00:51:08,016 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 348 [2023-12-20 00:51:08,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:51:08,057 INFO L225 Difference]: With dead ends: 34732 [2023-12-20 00:51:08,057 INFO L226 Difference]: Without dead ends: 16708 [2023-12-20 00:51:08,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 414 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-20 00:51:08,076 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 40 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:51:08,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 648 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 00:51:08,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16708 states. [2023-12-20 00:51:09,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16708 to 16708. [2023-12-20 00:51:09,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16708 states, 12738 states have (on average 1.252315905165646) internal successors, (15952), 12994 states have internal predecessors, (15952), 2760 states have call successors, (2760), 1207 states have call predecessors, (2760), 1209 states have return successors, (2764), 2506 states have call predecessors, (2764), 2760 states have call successors, (2764) [2023-12-20 00:51:09,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16708 states to 16708 states and 21476 transitions. [2023-12-20 00:51:09,373 INFO L78 Accepts]: Start accepts. Automaton has 16708 states and 21476 transitions. Word has length 348 [2023-12-20 00:51:09,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:51:09,374 INFO L495 AbstractCegarLoop]: Abstraction has 16708 states and 21476 transitions. [2023-12-20 00:51:09,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-12-20 00:51:09,374 INFO L276 IsEmpty]: Start isEmpty. Operand 16708 states and 21476 transitions. [2023-12-20 00:51:09,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2023-12-20 00:51:09,395 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:51:09,395 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 9, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:51:09,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-20 00:51:09,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:51:09,601 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:51:09,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:51:09,602 INFO L85 PathProgramCache]: Analyzing trace with hash -277793081, now seen corresponding path program 1 times [2023-12-20 00:51:09,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:51:09,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377153739] [2023-12-20 00:51:09,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:51:09,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:51:09,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:51:09,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:51:09,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 00:51:09,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 00:51:09,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 00:51:09,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:51:09,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:51:09,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:51:09,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-20 00:51:09,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:51:09,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:51:09,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:51:09,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-20 00:51:09,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:51:09,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:51:09,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:51:09,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-20 00:51:09,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-12-20 00:51:09,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-12-20 00:51:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-20 00:51:09,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-20 00:51:09,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-12-20 00:51:09,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-20 00:51:09,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-20 00:51:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-12-20 00:51:09,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-12-20 00:51:09,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-12-20 00:51:09,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2023-12-20 00:51:09,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2023-12-20 00:51:09,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-12-20 00:51:09,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2023-12-20 00:51:09,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-12-20 00:51:09,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-12-20 00:51:09,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2023-12-20 00:51:09,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,723 INFO L134 CoverageAnalysis]: Checked inductivity of 955 backedges. 9 proven. 136 refuted. 0 times theorem prover too weak. 810 trivial. 0 not checked. [2023-12-20 00:51:09,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:51:09,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377153739] [2023-12-20 00:51:09,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377153739] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 00:51:09,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950399257] [2023-12-20 00:51:09,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:51:09,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:51:09,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:51:09,725 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 00:51:09,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-20 00:51:09,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:09,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 1247 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-20 00:51:09,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:51:09,944 INFO L134 CoverageAnalysis]: Checked inductivity of 955 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 866 trivial. 0 not checked. [2023-12-20 00:51:09,944 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 00:51:09,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950399257] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:51:09,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 00:51:09,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2023-12-20 00:51:09,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754043621] [2023-12-20 00:51:09,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:51:09,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 00:51:09,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:51:09,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 00:51:09,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:51:09,945 INFO L87 Difference]: Start difference. First operand 16708 states and 21476 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-20 00:51:11,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:51:11,308 INFO L93 Difference]: Finished difference Result 32977 states and 42460 transitions. [2023-12-20 00:51:11,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 00:51:11,309 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) Word has length 361 [2023-12-20 00:51:11,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:51:11,347 INFO L225 Difference]: With dead ends: 32977 [2023-12-20 00:51:11,347 INFO L226 Difference]: Without dead ends: 16269 [2023-12-20 00:51:11,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 429 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-20 00:51:11,363 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 28 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:51:11,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 655 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 00:51:11,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16269 states. [2023-12-20 00:51:12,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16269 to 16269. [2023-12-20 00:51:12,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16269 states, 12381 states have (on average 1.2556336321783377) internal successors, (15546), 12637 states have internal predecessors, (15546), 2715 states have call successors, (2715), 1172 states have call predecessors, (2715), 1172 states have return successors, (2715), 2459 states have call predecessors, (2715), 2715 states have call successors, (2715) [2023-12-20 00:51:12,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16269 states to 16269 states and 20976 transitions. [2023-12-20 00:51:12,609 INFO L78 Accepts]: Start accepts. Automaton has 16269 states and 20976 transitions. Word has length 361 [2023-12-20 00:51:12,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:51:12,610 INFO L495 AbstractCegarLoop]: Abstraction has 16269 states and 20976 transitions. [2023-12-20 00:51:12,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-20 00:51:12,610 INFO L276 IsEmpty]: Start isEmpty. Operand 16269 states and 20976 transitions. [2023-12-20 00:51:12,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2023-12-20 00:51:12,630 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:51:12,630 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 9, 8, 7, 7, 7, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:51:12,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-20 00:51:12,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-12-20 00:51:12,836 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:51:12,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:51:12,836 INFO L85 PathProgramCache]: Analyzing trace with hash 177326682, now seen corresponding path program 1 times [2023-12-20 00:51:12,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:51:12,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884620780] [2023-12-20 00:51:12,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:51:12,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:51:12,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:51:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:51:13,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:51:13,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:51:13,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:51:13,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:51:13,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:51:13,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:51:13,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:51:13,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:51:13,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:51:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:51:13,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:51:13,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:51:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:51:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:51:13,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:51:13,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:51:13,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:51:13,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 00:51:13,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-20 00:51:13,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 00:51:13,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-20 00:51:13,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-20 00:51:13,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-12-20 00:51:13,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-12-20 00:51:13,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-12-20 00:51:13,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2023-12-20 00:51:13,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2023-12-20 00:51:13,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2023-12-20 00:51:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-12-20 00:51:13,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2023-12-20 00:51:13,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2023-12-20 00:51:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2023-12-20 00:51:13,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-12-20 00:51:13,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1007 backedges. 50 proven. 51 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2023-12-20 00:51:13,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:51:13,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884620780] [2023-12-20 00:51:13,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884620780] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 00:51:13,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375100731] [2023-12-20 00:51:13,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:51:13,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:51:13,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:51:13,337 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 00:51:13,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-20 00:51:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:13,542 INFO L262 TraceCheckSpWp]: Trace formula consists of 1272 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-20 00:51:13,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:51:13,990 INFO L134 CoverageAnalysis]: Checked inductivity of 1007 backedges. 274 proven. 263 refuted. 0 times theorem prover too weak. 470 trivial. 0 not checked. [2023-12-20 00:51:13,991 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 00:51:14,143 INFO L134 CoverageAnalysis]: Checked inductivity of 1007 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2023-12-20 00:51:14,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375100731] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-20 00:51:14,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-20 00:51:14,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15, 17] total 31 [2023-12-20 00:51:14,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156443206] [2023-12-20 00:51:14,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:51:14,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 00:51:14,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:51:14,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 00:51:14,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=860, Unknown=0, NotChecked=0, Total=930 [2023-12-20 00:51:14,145 INFO L87 Difference]: Start difference. First operand 16269 states and 20976 transitions. Second operand has 5 states, 4 states have (on average 27.0) internal successors, (108), 5 states have internal predecessors, (108), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2023-12-20 00:51:15,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:51:15,197 INFO L93 Difference]: Finished difference Result 29962 states and 38739 transitions. [2023-12-20 00:51:15,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 00:51:15,198 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 27.0) internal successors, (108), 5 states have internal predecessors, (108), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) Word has length 368 [2023-12-20 00:51:15,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:51:15,235 INFO L225 Difference]: With dead ends: 29962 [2023-12-20 00:51:15,235 INFO L226 Difference]: Without dead ends: 14485 [2023-12-20 00:51:15,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 818 GetRequests, 789 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=860, Unknown=0, NotChecked=0, Total=930 [2023-12-20 00:51:15,261 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 0 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:51:15,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 929 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 00:51:15,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14485 states. [2023-12-20 00:51:16,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14485 to 14485. [2023-12-20 00:51:16,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14485 states, 11022 states have (on average 1.2541281074215207) internal successors, (13823), 11254 states have internal predecessors, (13823), 2415 states have call successors, (2415), 1047 states have call predecessors, (2415), 1047 states have return successors, (2415), 2183 states have call predecessors, (2415), 2415 states have call successors, (2415) [2023-12-20 00:51:16,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14485 states to 14485 states and 18653 transitions. [2023-12-20 00:51:16,530 INFO L78 Accepts]: Start accepts. Automaton has 14485 states and 18653 transitions. Word has length 368 [2023-12-20 00:51:16,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:51:16,531 INFO L495 AbstractCegarLoop]: Abstraction has 14485 states and 18653 transitions. [2023-12-20 00:51:16,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 27.0) internal successors, (108), 5 states have internal predecessors, (108), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2023-12-20 00:51:16,531 INFO L276 IsEmpty]: Start isEmpty. Operand 14485 states and 18653 transitions. [2023-12-20 00:51:16,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2023-12-20 00:51:16,548 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:51:16,548 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 9, 8, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:51:16,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-20 00:51:16,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:51:16,754 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:51:16,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:51:16,755 INFO L85 PathProgramCache]: Analyzing trace with hash -734917806, now seen corresponding path program 1 times [2023-12-20 00:51:16,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:51:16,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530155236] [2023-12-20 00:51:16,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:51:16,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:51:16,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:51:17,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:51:17,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:51:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:51:17,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:51:17,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:51:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:51:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:51:17,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:51:17,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:51:17,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:51:17,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:51:17,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:51:17,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:51:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:51:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:51:17,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:51:17,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:51:17,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:51:17,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-20 00:51:17,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-12-20 00:51:17,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 00:51:17,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-20 00:51:17,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-20 00:51:17,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-20 00:51:17,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2023-12-20 00:51:17,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2023-12-20 00:51:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2023-12-20 00:51:17,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-12-20 00:51:17,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2023-12-20 00:51:17,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-12-20 00:51:17,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-12-20 00:51:17,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2023-12-20 00:51:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-12-20 00:51:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-12-20 00:51:17,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2023-12-20 00:51:17,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2023-12-20 00:51:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,398 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 1006 trivial. 0 not checked. [2023-12-20 00:51:17,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:51:17,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530155236] [2023-12-20 00:51:17,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530155236] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 00:51:17,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773528215] [2023-12-20 00:51:17,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:51:17,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:51:17,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:51:17,400 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 00:51:17,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-20 00:51:17,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:17,619 INFO L262 TraceCheckSpWp]: Trace formula consists of 1307 conjuncts, 68 conjunts are in the unsatisfiable core [2023-12-20 00:51:17,625 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:51:18,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 497 proven. 239 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2023-12-20 00:51:18,674 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 00:51:19,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 107 proven. 194 refuted. 0 times theorem prover too weak. 738 trivial. 0 not checked. [2023-12-20 00:51:19,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773528215] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 00:51:19,703 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 00:51:19,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 27, 22] total 52 [2023-12-20 00:51:19,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629298296] [2023-12-20 00:51:19,704 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 00:51:19,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-12-20 00:51:19,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:51:19,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-12-20 00:51:19,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=2434, Unknown=0, NotChecked=0, Total=2652 [2023-12-20 00:51:19,706 INFO L87 Difference]: Start difference. First operand 14485 states and 18653 transitions. Second operand has 52 states, 52 states have (on average 6.788461538461538) internal successors, (353), 45 states have internal predecessors, (353), 18 states have call successors, (78), 14 states have call predecessors, (78), 20 states have return successors, (82), 23 states have call predecessors, (82), 18 states have call successors, (82) [2023-12-20 00:51:34,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:51:34,056 INFO L93 Difference]: Finished difference Result 54535 states and 71941 transitions. [2023-12-20 00:51:34,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2023-12-20 00:51:34,057 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 6.788461538461538) internal successors, (353), 45 states have internal predecessors, (353), 18 states have call successors, (78), 14 states have call predecessors, (78), 20 states have return successors, (82), 23 states have call predecessors, (82), 18 states have call successors, (82) Word has length 378 [2023-12-20 00:51:34,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:51:34,168 INFO L225 Difference]: With dead ends: 54535 [2023-12-20 00:51:34,169 INFO L226 Difference]: Without dead ends: 40670 [2023-12-20 00:51:34,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1006 GetRequests, 814 SyntacticMatches, 0 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12309 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=3410, Invalid=34032, Unknown=0, NotChecked=0, Total=37442 [2023-12-20 00:51:34,205 INFO L413 NwaCegarLoop]: 466 mSDtfsCounter, 5454 mSDsluCounter, 10049 mSDsCounter, 0 mSdLazyCounter, 9135 mSolverCounterSat, 2244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5472 SdHoareTripleChecker+Valid, 10515 SdHoareTripleChecker+Invalid, 11379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2244 IncrementalHoareTripleChecker+Valid, 9135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-12-20 00:51:34,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5472 Valid, 10515 Invalid, 11379 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2244 Valid, 9135 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-12-20 00:51:34,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40670 states. [2023-12-20 00:51:36,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40670 to 15115. [2023-12-20 00:51:36,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15115 states, 11500 states have (on average 1.2448695652173913) internal successors, (14316), 11817 states have internal predecessors, (14316), 2499 states have call successors, (2499), 1115 states have call predecessors, (2499), 1115 states have return successors, (2499), 2182 states have call predecessors, (2499), 2499 states have call successors, (2499) [2023-12-20 00:51:36,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15115 states to 15115 states and 19314 transitions. [2023-12-20 00:51:36,188 INFO L78 Accepts]: Start accepts. Automaton has 15115 states and 19314 transitions. Word has length 378 [2023-12-20 00:51:36,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:51:36,189 INFO L495 AbstractCegarLoop]: Abstraction has 15115 states and 19314 transitions. [2023-12-20 00:51:36,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 6.788461538461538) internal successors, (353), 45 states have internal predecessors, (353), 18 states have call successors, (78), 14 states have call predecessors, (78), 20 states have return successors, (82), 23 states have call predecessors, (82), 18 states have call successors, (82) [2023-12-20 00:51:36,189 INFO L276 IsEmpty]: Start isEmpty. Operand 15115 states and 19314 transitions. [2023-12-20 00:51:36,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2023-12-20 00:51:36,207 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:51:36,207 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 9, 9, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:51:36,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-12-20 00:51:36,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:51:36,414 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:51:36,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:51:36,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1189667129, now seen corresponding path program 1 times [2023-12-20 00:51:36,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:51:36,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020293141] [2023-12-20 00:51:36,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:51:36,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:51:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:51:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:51:36,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:51:36,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:51:36,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:51:36,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:51:36,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:51:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:51:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:51:36,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:51:36,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:51:36,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:51:36,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:51:36,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:51:36,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:51:36,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:51:36,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:51:36,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:51:36,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:51:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-20 00:51:36,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-12-20 00:51:36,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 00:51:36,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-20 00:51:36,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-20 00:51:36,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-20 00:51:36,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-12-20 00:51:36,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-12-20 00:51:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-12-20 00:51:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2023-12-20 00:51:36,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2023-12-20 00:51:36,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-12-20 00:51:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-12-20 00:51:36,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2023-12-20 00:51:36,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2023-12-20 00:51:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2023-12-20 00:51:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2023-12-20 00:51:36,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2023-12-20 00:51:36,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2023-12-20 00:51:36,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:36,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1109 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 1079 trivial. 0 not checked. [2023-12-20 00:51:36,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:51:36,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020293141] [2023-12-20 00:51:36,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020293141] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:51:36,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:51:36,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-20 00:51:36,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989124419] [2023-12-20 00:51:36,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:51:36,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 00:51:36,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:51:36,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 00:51:36,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-20 00:51:36,644 INFO L87 Difference]: Start difference. First operand 15115 states and 19314 transitions. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 7 states have internal predecessors, (115), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2023-12-20 00:51:39,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:51:39,381 INFO L93 Difference]: Finished difference Result 33292 states and 42863 transitions. [2023-12-20 00:51:39,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 00:51:39,381 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 7 states have internal predecessors, (115), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) Word has length 389 [2023-12-20 00:51:39,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:51:39,415 INFO L225 Difference]: With dead ends: 33292 [2023-12-20 00:51:39,415 INFO L226 Difference]: Without dead ends: 18946 [2023-12-20 00:51:39,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2023-12-20 00:51:39,430 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 239 mSDsluCounter, 1421 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 1717 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 00:51:39,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 1717 Invalid, 1346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 00:51:39,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18946 states. [2023-12-20 00:51:40,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18946 to 11502. [2023-12-20 00:51:40,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11502 states, 8787 states have (on average 1.2305678843746444) internal successors, (10813), 9053 states have internal predecessors, (10813), 1809 states have call successors, (1809), 905 states have call predecessors, (1809), 905 states have return successors, (1809), 1543 states have call predecessors, (1809), 1809 states have call successors, (1809) [2023-12-20 00:51:40,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11502 states to 11502 states and 14431 transitions. [2023-12-20 00:51:40,798 INFO L78 Accepts]: Start accepts. Automaton has 11502 states and 14431 transitions. Word has length 389 [2023-12-20 00:51:40,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:51:40,799 INFO L495 AbstractCegarLoop]: Abstraction has 11502 states and 14431 transitions. [2023-12-20 00:51:40,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 7 states have internal predecessors, (115), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2023-12-20 00:51:40,799 INFO L276 IsEmpty]: Start isEmpty. Operand 11502 states and 14431 transitions. [2023-12-20 00:51:40,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2023-12-20 00:51:40,813 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:51:40,814 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 9, 9, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:51:40,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-20 00:51:40,814 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:51:40,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:51:40,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1676569739, now seen corresponding path program 1 times [2023-12-20 00:51:40,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:51:40,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470425942] [2023-12-20 00:51:40,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:51:40,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:51:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:51:41,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:51:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:51:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:51:41,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:51:41,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:51:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:51:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:51:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:51:41,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:51:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:51:41,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:51:41,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:51:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:51:41,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:51:41,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:51:41,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:51:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:51:41,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:51:41,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 00:51:41,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-12-20 00:51:41,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-12-20 00:51:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-20 00:51:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-12-20 00:51:41,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-12-20 00:51:41,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-12-20 00:51:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-12-20 00:51:41,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2023-12-20 00:51:41,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2023-12-20 00:51:41,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-20 00:51:41,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2023-12-20 00:51:41,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2023-12-20 00:51:41,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-12-20 00:51:41,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2023-12-20 00:51:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2023-12-20 00:51:41,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2023-12-20 00:51:41,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2023-12-20 00:51:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2023-12-20 00:51:41,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1103 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 1076 trivial. 0 not checked. [2023-12-20 00:51:41,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:51:41,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470425942] [2023-12-20 00:51:41,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470425942] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 00:51:41,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070935202] [2023-12-20 00:51:41,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:51:41,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:51:41,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:51:41,509 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 00:51:41,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-20 00:51:41,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:51:41,722 INFO L262 TraceCheckSpWp]: Trace formula consists of 1333 conjuncts, 68 conjunts are in the unsatisfiable core [2023-12-20 00:51:41,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:51:42,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1103 backedges. 571 proven. 261 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2023-12-20 00:51:42,584 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 00:51:43,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1103 backedges. 155 proven. 154 refuted. 0 times theorem prover too weak. 794 trivial. 0 not checked. [2023-12-20 00:51:43,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070935202] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 00:51:43,613 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 00:51:43,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 26, 21] total 52 [2023-12-20 00:51:43,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760667648] [2023-12-20 00:51:43,613 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 00:51:43,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-12-20 00:51:43,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:51:43,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-12-20 00:51:43,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=2444, Unknown=0, NotChecked=0, Total=2652 [2023-12-20 00:51:43,616 INFO L87 Difference]: Start difference. First operand 11502 states and 14431 transitions. Second operand has 52 states, 52 states have (on average 7.096153846153846) internal successors, (369), 45 states have internal predecessors, (369), 19 states have call successors, (81), 12 states have call predecessors, (81), 21 states have return successors, (85), 25 states have call predecessors, (85), 19 states have call successors, (85) [2023-12-20 00:52:06,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:52:06,180 INFO L93 Difference]: Finished difference Result 44843 states and 57493 transitions. [2023-12-20 00:52:06,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2023-12-20 00:52:06,180 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 7.096153846153846) internal successors, (369), 45 states have internal predecessors, (369), 19 states have call successors, (81), 12 states have call predecessors, (81), 21 states have return successors, (85), 25 states have call predecessors, (85), 19 states have call successors, (85) Word has length 390 [2023-12-20 00:52:06,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:52:06,260 INFO L225 Difference]: With dead ends: 44843 [2023-12-20 00:52:06,260 INFO L226 Difference]: Without dead ends: 34002 [2023-12-20 00:52:06,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1095 GetRequests, 857 SyntacticMatches, 0 SemanticMatches, 238 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20602 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=4735, Invalid=52625, Unknown=0, NotChecked=0, Total=57360 [2023-12-20 00:52:06,280 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 4085 mSDsluCounter, 13010 mSDsCounter, 0 mSdLazyCounter, 13995 mSolverCounterSat, 1540 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4087 SdHoareTripleChecker+Valid, 13705 SdHoareTripleChecker+Invalid, 15535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1540 IncrementalHoareTripleChecker+Valid, 13995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2023-12-20 00:52:06,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4087 Valid, 13705 Invalid, 15535 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1540 Valid, 13995 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2023-12-20 00:52:06,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34002 states. [2023-12-20 00:52:08,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34002 to 10317. [2023-12-20 00:52:08,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10317 states, 7914 states have (on average 1.2254233004801618) internal successors, (9698), 8168 states have internal predecessors, (9698), 1591 states have call successors, (1591), 811 states have call predecessors, (1591), 811 states have return successors, (1591), 1337 states have call predecessors, (1591), 1591 states have call successors, (1591) [2023-12-20 00:52:08,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10317 states to 10317 states and 12880 transitions. [2023-12-20 00:52:08,404 INFO L78 Accepts]: Start accepts. Automaton has 10317 states and 12880 transitions. Word has length 390 [2023-12-20 00:52:08,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:52:08,405 INFO L495 AbstractCegarLoop]: Abstraction has 10317 states and 12880 transitions. [2023-12-20 00:52:08,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 7.096153846153846) internal successors, (369), 45 states have internal predecessors, (369), 19 states have call successors, (81), 12 states have call predecessors, (81), 21 states have return successors, (85), 25 states have call predecessors, (85), 19 states have call successors, (85) [2023-12-20 00:52:08,405 INFO L276 IsEmpty]: Start isEmpty. Operand 10317 states and 12880 transitions. [2023-12-20 00:52:08,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2023-12-20 00:52:08,419 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:52:08,419 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 10, 10, 10, 9, 9, 8, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:52:08,425 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-12-20 00:52:08,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:52:08,625 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:52:08,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:52:08,626 INFO L85 PathProgramCache]: Analyzing trace with hash 75162013, now seen corresponding path program 1 times [2023-12-20 00:52:08,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:52:08,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147561620] [2023-12-20 00:52:08,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:52:08,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:52:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:52:09,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:52:09,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:52:09,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:52:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:52:09,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:52:09,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:52:09,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:52:09,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:52:09,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:52:09,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:52:09,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:52:09,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:52:09,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:52:09,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:52:09,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:52:09,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:52:09,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:52:09,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:52:09,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 00:52:09,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-20 00:52:09,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-20 00:52:09,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-12-20 00:52:09,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-12-20 00:52:09,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-12-20 00:52:09,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-12-20 00:52:09,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-12-20 00:52:09,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-12-20 00:52:09,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2023-12-20 00:52:09,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-20 00:52:09,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-12-20 00:52:09,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2023-12-20 00:52:09,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2023-12-20 00:52:09,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2023-12-20 00:52:09,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-12-20 00:52:09,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2023-12-20 00:52:09,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2023-12-20 00:52:09,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2023-12-20 00:52:09,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2023-12-20 00:52:09,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2023-12-20 00:52:09,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2023-12-20 00:52:09,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,338 INFO L134 CoverageAnalysis]: Checked inductivity of 1223 backedges. 22 proven. 23 refuted. 0 times theorem prover too weak. 1178 trivial. 0 not checked. [2023-12-20 00:52:09,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:52:09,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147561620] [2023-12-20 00:52:09,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147561620] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 00:52:09,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051367514] [2023-12-20 00:52:09,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:52:09,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:52:09,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:52:09,349 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 00:52:09,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-20 00:52:09,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:52:09,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 1421 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-20 00:52:09,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:52:09,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1223 backedges. 412 proven. 159 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2023-12-20 00:52:09,926 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 00:52:10,349 INFO L134 CoverageAnalysis]: Checked inductivity of 1223 backedges. 60 proven. 52 refuted. 0 times theorem prover too weak. 1111 trivial. 0 not checked. [2023-12-20 00:52:10,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051367514] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 00:52:10,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 00:52:10,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 33 [2023-12-20 00:52:10,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246375214] [2023-12-20 00:52:10,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 00:52:10,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-20 00:52:10,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:52:10,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-20 00:52:10,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=969, Unknown=0, NotChecked=0, Total=1056 [2023-12-20 00:52:10,351 INFO L87 Difference]: Start difference. First operand 10317 states and 12880 transitions. Second operand has 33 states, 33 states have (on average 8.787878787878787) internal successors, (290), 28 states have internal predecessors, (290), 9 states have call successors, (85), 9 states have call predecessors, (85), 14 states have return successors, (85), 13 states have call predecessors, (85), 9 states have call successors, (85) [2023-12-20 00:53:00,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:53:00,304 INFO L93 Difference]: Finished difference Result 119692 states and 156065 transitions. [2023-12-20 00:53:00,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 454 states. [2023-12-20 00:53:00,305 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 8.787878787878787) internal successors, (290), 28 states have internal predecessors, (290), 9 states have call successors, (85), 9 states have call predecessors, (85), 14 states have return successors, (85), 13 states have call predecessors, (85), 9 states have call successors, (85) Word has length 417 [2023-12-20 00:53:00,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:53:00,830 INFO L225 Difference]: With dead ends: 119692 [2023-12-20 00:53:00,830 INFO L226 Difference]: Without dead ends: 110115 [2023-12-20 00:53:00,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1441 GetRequests, 958 SyntacticMatches, 1 SemanticMatches, 482 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102325 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=16284, Invalid=217488, Unknown=0, NotChecked=0, Total=233772 [2023-12-20 00:53:00,897 INFO L413 NwaCegarLoop]: 877 mSDtfsCounter, 5710 mSDsluCounter, 14492 mSDsCounter, 0 mSdLazyCounter, 19471 mSolverCounterSat, 1874 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5711 SdHoareTripleChecker+Valid, 15369 SdHoareTripleChecker+Invalid, 21345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1874 IncrementalHoareTripleChecker+Valid, 19471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2023-12-20 00:53:00,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5711 Valid, 15369 Invalid, 21345 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1874 Valid, 19471 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2023-12-20 00:53:00,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110115 states. [2023-12-20 00:53:10,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110115 to 39378. [2023-12-20 00:53:10,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39378 states, 30020 states have (on average 1.229680213191206) internal successors, (36915), 30873 states have internal predecessors, (36915), 6357 states have call successors, (6357), 3000 states have call predecessors, (6357), 3000 states have return successors, (6357), 5504 states have call predecessors, (6357), 6357 states have call successors, (6357) [2023-12-20 00:53:10,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39378 states to 39378 states and 49629 transitions. [2023-12-20 00:53:10,756 INFO L78 Accepts]: Start accepts. Automaton has 39378 states and 49629 transitions. Word has length 417 [2023-12-20 00:53:10,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:53:10,757 INFO L495 AbstractCegarLoop]: Abstraction has 39378 states and 49629 transitions. [2023-12-20 00:53:10,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 8.787878787878787) internal successors, (290), 28 states have internal predecessors, (290), 9 states have call successors, (85), 9 states have call predecessors, (85), 14 states have return successors, (85), 13 states have call predecessors, (85), 9 states have call successors, (85) [2023-12-20 00:53:10,758 INFO L276 IsEmpty]: Start isEmpty. Operand 39378 states and 49629 transitions. [2023-12-20 00:53:10,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2023-12-20 00:53:10,812 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:53:10,812 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 10, 10, 10, 9, 9, 8, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:53:10,820 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-12-20 00:53:11,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:53:11,017 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:53:11,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:53:11,017 INFO L85 PathProgramCache]: Analyzing trace with hash 200833049, now seen corresponding path program 1 times [2023-12-20 00:53:11,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:53:11,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431620316] [2023-12-20 00:53:11,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:53:11,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:53:11,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:53:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:53:11,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:53:11,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:53:11,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:53:11,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:53:11,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:53:11,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:53:11,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:53:11,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:53:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:53:11,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:53:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:53:11,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:53:11,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:53:11,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:53:11,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:53:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:53:11,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:53:11,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 00:53:11,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-12-20 00:53:11,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-12-20 00:53:11,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-20 00:53:11,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-12-20 00:53:11,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-12-20 00:53:11,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-12-20 00:53:11,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-12-20 00:53:11,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2023-12-20 00:53:11,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-12-20 00:53:11,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-12-20 00:53:11,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-12-20 00:53:11,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2023-12-20 00:53:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2023-12-20 00:53:11,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2023-12-20 00:53:11,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2023-12-20 00:53:11,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2023-12-20 00:53:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2023-12-20 00:53:11,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2023-12-20 00:53:11,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2023-12-20 00:53:11,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2023-12-20 00:53:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2023-12-20 00:53:11,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:11,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1222 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 1189 trivial. 0 not checked. [2023-12-20 00:53:11,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:53:11,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431620316] [2023-12-20 00:53:11,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431620316] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:53:11,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:53:11,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 00:53:11,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098792791] [2023-12-20 00:53:11,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:53:11,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 00:53:11,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:53:11,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 00:53:11,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-20 00:53:11,452 INFO L87 Difference]: Start difference. First operand 39378 states and 49629 transitions. Second operand has 10 states, 10 states have (on average 13.0) internal successors, (130), 8 states have internal predecessors, (130), 3 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2023-12-20 00:53:23,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:53:23,115 INFO L93 Difference]: Finished difference Result 85246 states and 108449 transitions. [2023-12-20 00:53:23,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-20 00:53:23,116 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.0) internal successors, (130), 8 states have internal predecessors, (130), 3 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 417 [2023-12-20 00:53:23,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:53:23,219 INFO L225 Difference]: With dead ends: 85246 [2023-12-20 00:53:23,219 INFO L226 Difference]: Without dead ends: 47209 [2023-12-20 00:53:23,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=579, Unknown=0, NotChecked=0, Total=702 [2023-12-20 00:53:23,258 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 370 mSDsluCounter, 1821 mSDsCounter, 0 mSdLazyCounter, 2170 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 2187 SdHoareTripleChecker+Invalid, 2254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 00:53:23,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 2187 Invalid, 2254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 2170 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 00:53:23,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47209 states. [2023-12-20 00:53:29,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47209 to 27150. [2023-12-20 00:53:29,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27150 states, 20732 states have (on average 1.2227474435655026) internal successors, (25350), 21412 states have internal predecessors, (25350), 4275 states have call successors, (4275), 2142 states have call predecessors, (4275), 2142 states have return successors, (4275), 3595 states have call predecessors, (4275), 4275 states have call successors, (4275) [2023-12-20 00:53:29,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27150 states to 27150 states and 33900 transitions. [2023-12-20 00:53:29,727 INFO L78 Accepts]: Start accepts. Automaton has 27150 states and 33900 transitions. Word has length 417 [2023-12-20 00:53:29,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:53:29,728 INFO L495 AbstractCegarLoop]: Abstraction has 27150 states and 33900 transitions. [2023-12-20 00:53:29,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.0) internal successors, (130), 8 states have internal predecessors, (130), 3 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2023-12-20 00:53:29,728 INFO L276 IsEmpty]: Start isEmpty. Operand 27150 states and 33900 transitions. [2023-12-20 00:53:29,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2023-12-20 00:53:29,760 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:53:29,760 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 10, 10, 10, 9, 9, 8, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:53:29,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-12-20 00:53:29,760 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:53:29,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:53:29,760 INFO L85 PathProgramCache]: Analyzing trace with hash -420943448, now seen corresponding path program 1 times [2023-12-20 00:53:29,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:53:29,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382231305] [2023-12-20 00:53:29,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:53:29,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:53:29,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:53:30,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:53:30,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:53:30,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:53:30,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:53:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:53:30,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:53:30,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:53:30,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:53:30,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:53:30,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:53:30,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:53:30,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:53:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:53:30,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:53:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:53:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:53:30,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:53:30,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:53:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-12-20 00:53:30,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2023-12-20 00:53:30,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-20 00:53:30,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-12-20 00:53:30,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-12-20 00:53:30,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-12-20 00:53:30,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-12-20 00:53:30,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-12-20 00:53:30,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-12-20 00:53:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2023-12-20 00:53:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-20 00:53:30,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-12-20 00:53:30,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2023-12-20 00:53:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2023-12-20 00:53:30,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2023-12-20 00:53:30,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-12-20 00:53:30,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2023-12-20 00:53:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2023-12-20 00:53:30,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2023-12-20 00:53:30,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2023-12-20 00:53:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2023-12-20 00:53:30,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2023-12-20 00:53:30,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1223 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 1196 trivial. 0 not checked. [2023-12-20 00:53:30,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:53:30,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382231305] [2023-12-20 00:53:30,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382231305] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 00:53:30,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691772439] [2023-12-20 00:53:30,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:53:30,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:53:30,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:53:30,413 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 00:53:30,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-20 00:53:30,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:53:30,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 1421 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-20 00:53:30,790 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:53:31,383 INFO L134 CoverageAnalysis]: Checked inductivity of 1223 backedges. 498 proven. 70 refuted. 0 times theorem prover too weak. 655 trivial. 0 not checked. [2023-12-20 00:53:31,383 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 00:53:31,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1223 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 1196 trivial. 0 not checked. [2023-12-20 00:53:31,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691772439] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 00:53:31,854 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 00:53:31,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 31 [2023-12-20 00:53:31,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626161676] [2023-12-20 00:53:31,854 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 00:53:31,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-20 00:53:31,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:53:31,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-20 00:53:31,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=786, Unknown=0, NotChecked=0, Total=930 [2023-12-20 00:53:31,856 INFO L87 Difference]: Start difference. First operand 27150 states and 33900 transitions. Second operand has 31 states, 29 states have (on average 11.89655172413793) internal successors, (345), 30 states have internal predecessors, (345), 19 states have call successors, (90), 7 states have call predecessors, (90), 8 states have return successors, (89), 17 states have call predecessors, (89), 19 states have call successors, (89) [2023-12-20 00:54:28,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:54:28,122 INFO L93 Difference]: Finished difference Result 183408 states and 233053 transitions. [2023-12-20 00:54:28,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 302 states. [2023-12-20 00:54:28,122 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 29 states have (on average 11.89655172413793) internal successors, (345), 30 states have internal predecessors, (345), 19 states have call successors, (90), 7 states have call predecessors, (90), 8 states have return successors, (89), 17 states have call predecessors, (89), 19 states have call successors, (89) Word has length 417 [2023-12-20 00:54:28,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:54:28,715 INFO L225 Difference]: With dead ends: 183408 [2023-12-20 00:54:28,715 INFO L226 Difference]: Without dead ends: 157599 [2023-12-20 00:54:28,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1402 GetRequests, 1076 SyntacticMatches, 0 SemanticMatches, 326 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43521 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=13182, Invalid=94074, Unknown=0, NotChecked=0, Total=107256 [2023-12-20 00:54:28,779 INFO L413 NwaCegarLoop]: 1948 mSDtfsCounter, 4215 mSDsluCounter, 13946 mSDsCounter, 0 mSdLazyCounter, 18787 mSolverCounterSat, 1238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4236 SdHoareTripleChecker+Valid, 15894 SdHoareTripleChecker+Invalid, 20025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1238 IncrementalHoareTripleChecker+Valid, 18787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2023-12-20 00:54:28,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4236 Valid, 15894 Invalid, 20025 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1238 Valid, 18787 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2023-12-20 00:54:28,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157599 states. [2023-12-20 00:54:40,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157599 to 40785. [2023-12-20 00:54:40,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40785 states, 31150 states have (on average 1.2247833065810594) internal successors, (38152), 32247 states have internal predecessors, (38152), 6443 states have call successors, (6443), 3191 states have call predecessors, (6443), 3191 states have return successors, (6443), 5346 states have call predecessors, (6443), 6443 states have call successors, (6443) [2023-12-20 00:54:40,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40785 states to 40785 states and 51038 transitions. [2023-12-20 00:54:40,244 INFO L78 Accepts]: Start accepts. Automaton has 40785 states and 51038 transitions. Word has length 417 [2023-12-20 00:54:40,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:54:40,244 INFO L495 AbstractCegarLoop]: Abstraction has 40785 states and 51038 transitions. [2023-12-20 00:54:40,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 29 states have (on average 11.89655172413793) internal successors, (345), 30 states have internal predecessors, (345), 19 states have call successors, (90), 7 states have call predecessors, (90), 8 states have return successors, (89), 17 states have call predecessors, (89), 19 states have call successors, (89) [2023-12-20 00:54:40,245 INFO L276 IsEmpty]: Start isEmpty. Operand 40785 states and 51038 transitions. [2023-12-20 00:54:40,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2023-12-20 00:54:40,296 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:54:40,296 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 10, 10, 10, 9, 9, 8, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:54:40,303 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-12-20 00:54:40,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-12-20 00:54:40,502 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:54:40,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:54:40,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1704979577, now seen corresponding path program 1 times [2023-12-20 00:54:40,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:54:40,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572191247] [2023-12-20 00:54:40,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:54:40,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:54:40,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:54:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:54:40,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:54:40,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:54:40,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:54:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:54:40,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:54:40,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:54:40,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:54:40,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:54:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:54:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:54:40,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:54:40,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:54:40,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:54:40,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:54:40,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:54:40,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:54:40,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-20 00:54:40,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-12-20 00:54:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-20 00:54:40,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-20 00:54:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-12-20 00:54:40,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-12-20 00:54:40,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-12-20 00:54:40,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-12-20 00:54:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-12-20 00:54:40,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-12-20 00:54:40,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2023-12-20 00:54:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-20 00:54:40,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-12-20 00:54:40,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2023-12-20 00:54:40,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2023-12-20 00:54:40,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2023-12-20 00:54:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-12-20 00:54:40,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2023-12-20 00:54:40,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2023-12-20 00:54:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2023-12-20 00:54:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2023-12-20 00:54:40,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2023-12-20 00:54:40,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2023-12-20 00:54:40,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,705 INFO L134 CoverageAnalysis]: Checked inductivity of 1229 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 1210 trivial. 0 not checked. [2023-12-20 00:54:40,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:54:40,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572191247] [2023-12-20 00:54:40,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572191247] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 00:54:40,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898354336] [2023-12-20 00:54:40,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:54:40,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:54:40,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:54:40,707 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 00:54:40,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-12-20 00:54:40,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:40,947 INFO L262 TraceCheckSpWp]: Trace formula consists of 1421 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-20 00:54:40,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:54:41,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1229 backedges. 460 proven. 83 refuted. 0 times theorem prover too weak. 686 trivial. 0 not checked. [2023-12-20 00:54:41,215 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 00:54:41,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1229 backedges. 54 proven. 48 refuted. 0 times theorem prover too weak. 1127 trivial. 0 not checked. [2023-12-20 00:54:41,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1898354336] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 00:54:41,513 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 00:54:41,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 13, 10] total 25 [2023-12-20 00:54:41,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818815092] [2023-12-20 00:54:41,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 00:54:41,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-20 00:54:41,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:54:41,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-20 00:54:41,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2023-12-20 00:54:41,516 INFO L87 Difference]: Start difference. First operand 40785 states and 51038 transitions. Second operand has 25 states, 22 states have (on average 11.181818181818182) internal successors, (246), 22 states have internal predecessors, (246), 8 states have call successors, (63), 7 states have call predecessors, (63), 10 states have return successors, (61), 8 states have call predecessors, (61), 8 states have call successors, (61) [2023-12-20 00:54:49,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:54:49,627 INFO L93 Difference]: Finished difference Result 64281 states and 80931 transitions. [2023-12-20 00:54:49,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-12-20 00:54:49,627 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 22 states have (on average 11.181818181818182) internal successors, (246), 22 states have internal predecessors, (246), 8 states have call successors, (63), 7 states have call predecessors, (63), 10 states have return successors, (61), 8 states have call predecessors, (61), 8 states have call successors, (61) Word has length 417 [2023-12-20 00:54:49,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:54:49,693 INFO L225 Difference]: With dead ends: 64281 [2023-12-20 00:54:49,693 INFO L226 Difference]: Without dead ends: 24642 [2023-12-20 00:54:49,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 940 GetRequests, 896 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=280, Invalid=1790, Unknown=0, NotChecked=0, Total=2070 [2023-12-20 00:54:49,734 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 271 mSDsluCounter, 2672 mSDsCounter, 0 mSdLazyCounter, 1949 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 2867 SdHoareTripleChecker+Invalid, 2012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 00:54:49,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 2867 Invalid, 2012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1949 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 00:54:49,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24642 states. [2023-12-20 00:54:53,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24642 to 13110. [2023-12-20 00:54:53,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13110 states, 10099 states have (on average 1.2123972670561443) internal successors, (12244), 10326 states have internal predecessors, (12244), 1972 states have call successors, (1972), 1038 states have call predecessors, (1972), 1038 states have return successors, (1972), 1745 states have call predecessors, (1972), 1972 states have call successors, (1972) [2023-12-20 00:54:53,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13110 states to 13110 states and 16188 transitions. [2023-12-20 00:54:53,457 INFO L78 Accepts]: Start accepts. Automaton has 13110 states and 16188 transitions. Word has length 417 [2023-12-20 00:54:53,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:54:53,457 INFO L495 AbstractCegarLoop]: Abstraction has 13110 states and 16188 transitions. [2023-12-20 00:54:53,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 22 states have (on average 11.181818181818182) internal successors, (246), 22 states have internal predecessors, (246), 8 states have call successors, (63), 7 states have call predecessors, (63), 10 states have return successors, (61), 8 states have call predecessors, (61), 8 states have call successors, (61) [2023-12-20 00:54:53,458 INFO L276 IsEmpty]: Start isEmpty. Operand 13110 states and 16188 transitions. [2023-12-20 00:54:53,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2023-12-20 00:54:53,473 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:54:53,473 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 10, 10, 10, 9, 9, 8, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:54:53,481 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-12-20 00:54:53,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-12-20 00:54:53,679 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:54:53,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:54:53,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1632786803, now seen corresponding path program 1 times [2023-12-20 00:54:53,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:54:53,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314896306] [2023-12-20 00:54:53,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:54:53,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:54:53,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:54:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:54:53,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:54:53,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:54:53,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:54:53,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:54:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:54:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:54:53,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:54:53,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:54:53,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:54:53,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:54:53,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:54:53,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:54:53,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:54:53,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:54:53,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:54:53,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:54:53,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:54:53,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-12-20 00:54:53,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-20 00:54:53,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-12-20 00:54:53,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-12-20 00:54:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-12-20 00:54:53,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2023-12-20 00:54:53,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-12-20 00:54:53,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-12-20 00:54:53,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-12-20 00:54:53,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2023-12-20 00:54:53,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2023-12-20 00:54:53,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2023-12-20 00:54:53,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2023-12-20 00:54:53,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2023-12-20 00:54:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2023-12-20 00:54:53,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2023-12-20 00:54:53,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2023-12-20 00:54:53,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2023-12-20 00:54:53,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2023-12-20 00:54:53,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2023-12-20 00:54:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2023-12-20 00:54:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2023-12-20 00:54:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:53,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1223 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 1203 trivial. 0 not checked. [2023-12-20 00:54:53,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:54:53,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314896306] [2023-12-20 00:54:53,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314896306] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 00:54:53,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054852004] [2023-12-20 00:54:53,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:54:53,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:54:53,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:54:53,903 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 00:54:53,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-12-20 00:54:54,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:54:54,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 1421 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-20 00:54:54,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:54:54,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1223 backedges. 476 proven. 87 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2023-12-20 00:54:54,402 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 00:54:54,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1223 backedges. 52 proven. 34 refuted. 0 times theorem prover too weak. 1137 trivial. 0 not checked. [2023-12-20 00:54:54,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054852004] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 00:54:54,678 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 00:54:54,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 14, 10] total 26 [2023-12-20 00:54:54,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745472651] [2023-12-20 00:54:54,678 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 00:54:54,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-20 00:54:54,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:54:54,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-20 00:54:54,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=572, Unknown=0, NotChecked=0, Total=650 [2023-12-20 00:54:54,680 INFO L87 Difference]: Start difference. First operand 13110 states and 16188 transitions. Second operand has 26 states, 23 states have (on average 11.173913043478262) internal successors, (257), 23 states have internal predecessors, (257), 9 states have call successors, (67), 8 states have call predecessors, (67), 11 states have return successors, (64), 8 states have call predecessors, (64), 9 states have call successors, (64) [2023-12-20 00:54:59,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:54:59,061 INFO L93 Difference]: Finished difference Result 22448 states and 27895 transitions. [2023-12-20 00:54:59,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-12-20 00:54:59,061 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 23 states have (on average 11.173913043478262) internal successors, (257), 23 states have internal predecessors, (257), 9 states have call successors, (67), 8 states have call predecessors, (67), 11 states have return successors, (64), 8 states have call predecessors, (64), 9 states have call successors, (64) Word has length 418 [2023-12-20 00:54:59,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:54:59,082 INFO L225 Difference]: With dead ends: 22448 [2023-12-20 00:54:59,082 INFO L226 Difference]: Without dead ends: 9809 [2023-12-20 00:54:59,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 942 GetRequests, 897 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=303, Invalid=1859, Unknown=0, NotChecked=0, Total=2162 [2023-12-20 00:54:59,097 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 634 mSDsluCounter, 2277 mSDsCounter, 0 mSdLazyCounter, 1684 mSolverCounterSat, 249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 2470 SdHoareTripleChecker+Invalid, 1933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 1684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 00:54:59,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 2470 Invalid, 1933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [249 Valid, 1684 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 00:54:59,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9809 states. [2023-12-20 00:55:01,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9809 to 6734. [2023-12-20 00:55:01,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6734 states, 5221 states have (on average 1.1924918597969738) internal successors, (6226), 5298 states have internal predecessors, (6226), 976 states have call successors, (976), 536 states have call predecessors, (976), 536 states have return successors, (976), 899 states have call predecessors, (976), 976 states have call successors, (976) [2023-12-20 00:55:01,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6734 states to 6734 states and 8178 transitions. [2023-12-20 00:55:01,302 INFO L78 Accepts]: Start accepts. Automaton has 6734 states and 8178 transitions. Word has length 418 [2023-12-20 00:55:01,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:55:01,302 INFO L495 AbstractCegarLoop]: Abstraction has 6734 states and 8178 transitions. [2023-12-20 00:55:01,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 23 states have (on average 11.173913043478262) internal successors, (257), 23 states have internal predecessors, (257), 9 states have call successors, (67), 8 states have call predecessors, (67), 11 states have return successors, (64), 8 states have call predecessors, (64), 9 states have call successors, (64) [2023-12-20 00:55:01,302 INFO L276 IsEmpty]: Start isEmpty. Operand 6734 states and 8178 transitions. [2023-12-20 00:55:01,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2023-12-20 00:55:01,311 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:55:01,311 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 11, 9, 8, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:55:01,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-12-20 00:55:01,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-12-20 00:55:01,532 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:55:01,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:55:01,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1976674995, now seen corresponding path program 1 times [2023-12-20 00:55:01,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:55:01,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848608083] [2023-12-20 00:55:01,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:55:01,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:55:01,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:55:01,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:55:01,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:55:01,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:55:01,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:55:01,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:55:01,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:55:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:55:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:55:01,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:55:01,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:55:01,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:55:01,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:55:01,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:55:01,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:55:01,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:55:01,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:55:01,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:55:01,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:55:01,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 00:55:01,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-20 00:55:01,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-20 00:55:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-12-20 00:55:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-12-20 00:55:01,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-12-20 00:55:01,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-12-20 00:55:01,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-12-20 00:55:01,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-12-20 00:55:01,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2023-12-20 00:55:01,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-20 00:55:01,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-12-20 00:55:01,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2023-12-20 00:55:01,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2023-12-20 00:55:01,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2023-12-20 00:55:01,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-12-20 00:55:01,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2023-12-20 00:55:01,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2023-12-20 00:55:01,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2023-12-20 00:55:01,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2023-12-20 00:55:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2023-12-20 00:55:01,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2023-12-20 00:55:01,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2023-12-20 00:55:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:01,723 INFO L134 CoverageAnalysis]: Checked inductivity of 1263 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 1221 trivial. 0 not checked. [2023-12-20 00:55:01,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:55:01,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848608083] [2023-12-20 00:55:01,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848608083] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:55:01,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:55:01,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-20 00:55:01,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989433397] [2023-12-20 00:55:01,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:55:01,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 00:55:01,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:55:01,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 00:55:01,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-20 00:55:01,725 INFO L87 Difference]: Start difference. First operand 6734 states and 8178 transitions. Second operand has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 7 states have internal predecessors, (131), 3 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-20 00:55:04,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:55:04,882 INFO L93 Difference]: Finished difference Result 13568 states and 16526 transitions. [2023-12-20 00:55:04,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 00:55:04,882 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 7 states have internal predecessors, (131), 3 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 422 [2023-12-20 00:55:04,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:55:04,895 INFO L225 Difference]: With dead ends: 13568 [2023-12-20 00:55:04,895 INFO L226 Difference]: Without dead ends: 7503 [2023-12-20 00:55:04,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-12-20 00:55:04,903 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 204 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 1375 SdHoareTripleChecker+Invalid, 1059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 00:55:04,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 1375 Invalid, 1059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1021 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 00:55:04,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7503 states. [2023-12-20 00:55:07,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7503 to 6744. [2023-12-20 00:55:07,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6744 states, 5231 states have (on average 1.1917415408143759) internal successors, (6234), 5303 states have internal predecessors, (6234), 976 states have call successors, (976), 536 states have call predecessors, (976), 536 states have return successors, (976), 904 states have call predecessors, (976), 976 states have call successors, (976) [2023-12-20 00:55:07,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6744 states to 6744 states and 8186 transitions. [2023-12-20 00:55:07,158 INFO L78 Accepts]: Start accepts. Automaton has 6744 states and 8186 transitions. Word has length 422 [2023-12-20 00:55:07,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:55:07,159 INFO L495 AbstractCegarLoop]: Abstraction has 6744 states and 8186 transitions. [2023-12-20 00:55:07,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 7 states have internal predecessors, (131), 3 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-20 00:55:07,159 INFO L276 IsEmpty]: Start isEmpty. Operand 6744 states and 8186 transitions. [2023-12-20 00:55:07,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2023-12-20 00:55:07,167 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:55:07,167 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 11, 9, 8, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:55:07,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-12-20 00:55:07,167 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:55:07,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:55:07,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1935109201, now seen corresponding path program 1 times [2023-12-20 00:55:07,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:55:07,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110489970] [2023-12-20 00:55:07,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:55:07,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:55:07,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:55:07,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:55:07,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:55:07,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:55:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:55:07,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:55:07,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:55:07,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:55:07,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:55:07,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:55:07,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:55:07,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:55:07,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:55:07,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:55:07,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:55:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:55:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:55:07,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:55:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:55:07,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 00:55:07,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-12-20 00:55:07,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-12-20 00:55:07,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-20 00:55:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-12-20 00:55:07,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-12-20 00:55:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-12-20 00:55:07,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-12-20 00:55:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2023-12-20 00:55:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-12-20 00:55:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-12-20 00:55:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-12-20 00:55:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2023-12-20 00:55:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2023-12-20 00:55:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2023-12-20 00:55:07,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2023-12-20 00:55:07,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2023-12-20 00:55:07,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2023-12-20 00:55:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2023-12-20 00:55:07,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2023-12-20 00:55:07,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2023-12-20 00:55:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2023-12-20 00:55:07,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2023-12-20 00:55:07,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1262 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 1220 trivial. 0 not checked. [2023-12-20 00:55:07,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:55:07,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110489970] [2023-12-20 00:55:07,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110489970] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 00:55:07,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100073796] [2023-12-20 00:55:07,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:55:07,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:55:07,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:55:07,352 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 00:55:07,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-12-20 00:55:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:07,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 1444 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-20 00:55:07,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:55:07,962 INFO L134 CoverageAnalysis]: Checked inductivity of 1262 backedges. 187 proven. 400 refuted. 0 times theorem prover too weak. 675 trivial. 0 not checked. [2023-12-20 00:55:07,962 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 00:55:08,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1262 backedges. 23 proven. 30 refuted. 0 times theorem prover too weak. 1209 trivial. 0 not checked. [2023-12-20 00:55:08,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100073796] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 00:55:08,200 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 00:55:08,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 12] total 20 [2023-12-20 00:55:08,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331595762] [2023-12-20 00:55:08,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 00:55:08,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-20 00:55:08,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:55:08,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-20 00:55:08,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=341, Unknown=0, NotChecked=0, Total=380 [2023-12-20 00:55:08,202 INFO L87 Difference]: Start difference. First operand 6744 states and 8186 transitions. Second operand has 20 states, 20 states have (on average 15.25) internal successors, (305), 17 states have internal predecessors, (305), 7 states have call successors, (95), 7 states have call predecessors, (95), 9 states have return successors, (94), 9 states have call predecessors, (94), 7 states have call successors, (94) [2023-12-20 00:55:16,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:55:16,721 INFO L93 Difference]: Finished difference Result 21853 states and 26756 transitions. [2023-12-20 00:55:16,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-12-20 00:55:16,722 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 15.25) internal successors, (305), 17 states have internal predecessors, (305), 7 states have call successors, (95), 7 states have call predecessors, (95), 9 states have return successors, (94), 9 states have call predecessors, (94), 7 states have call successors, (94) Word has length 422 [2023-12-20 00:55:16,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:55:16,749 INFO L225 Difference]: With dead ends: 21853 [2023-12-20 00:55:16,750 INFO L226 Difference]: Without dead ends: 15778 [2023-12-20 00:55:16,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1013 GetRequests, 933 SyntacticMatches, 9 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1337 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=527, Invalid=4729, Unknown=0, NotChecked=0, Total=5256 [2023-12-20 00:55:16,759 INFO L413 NwaCegarLoop]: 439 mSDtfsCounter, 1151 mSDsluCounter, 5462 mSDsCounter, 0 mSdLazyCounter, 5046 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 5901 SdHoareTripleChecker+Invalid, 5404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 5046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-20 00:55:16,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1167 Valid, 5901 Invalid, 5404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 5046 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-20 00:55:16,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15778 states. [2023-12-20 00:55:20,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15778 to 12511. [2023-12-20 00:55:20,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12511 states, 9712 states have (on average 1.18914744645799) internal successors, (11549), 9846 states have internal predecessors, (11549), 1798 states have call successors, (1798), 1000 states have call predecessors, (1798), 1000 states have return successors, (1798), 1664 states have call predecessors, (1798), 1798 states have call successors, (1798) [2023-12-20 00:55:20,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12511 states to 12511 states and 15145 transitions. [2023-12-20 00:55:20,842 INFO L78 Accepts]: Start accepts. Automaton has 12511 states and 15145 transitions. Word has length 422 [2023-12-20 00:55:20,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:55:20,842 INFO L495 AbstractCegarLoop]: Abstraction has 12511 states and 15145 transitions. [2023-12-20 00:55:20,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 15.25) internal successors, (305), 17 states have internal predecessors, (305), 7 states have call successors, (95), 7 states have call predecessors, (95), 9 states have return successors, (94), 9 states have call predecessors, (94), 7 states have call successors, (94) [2023-12-20 00:55:20,842 INFO L276 IsEmpty]: Start isEmpty. Operand 12511 states and 15145 transitions. [2023-12-20 00:55:20,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2023-12-20 00:55:20,853 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:55:20,853 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 11, 11, 11, 10, 10, 9, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:55:20,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-12-20 00:55:21,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:55:21,054 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:55:21,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:55:21,054 INFO L85 PathProgramCache]: Analyzing trace with hash -921422701, now seen corresponding path program 1 times [2023-12-20 00:55:21,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:55:21,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586964899] [2023-12-20 00:55:21,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:55:21,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:55:21,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:55:21,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:55:21,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:55:21,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:55:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:55:21,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:55:21,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:55:21,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:55:21,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:55:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:55:21,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:55:21,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:55:21,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:55:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:55:21,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:55:21,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:55:21,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:55:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:55:21,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:55:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-20 00:55:21,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-12-20 00:55:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 00:55:21,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-20 00:55:21,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-20 00:55:21,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-20 00:55:21,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-12-20 00:55:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2023-12-20 00:55:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2023-12-20 00:55:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2023-12-20 00:55:21,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2023-12-20 00:55:21,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-12-20 00:55:21,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-12-20 00:55:21,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2023-12-20 00:55:21,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-12-20 00:55:21,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2023-12-20 00:55:21,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2023-12-20 00:55:21,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2023-12-20 00:55:21,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2023-12-20 00:55:21,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2023-12-20 00:55:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2023-12-20 00:55:21,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2023-12-20 00:55:21,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2023-12-20 00:55:21,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,357 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 48 proven. 2 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2023-12-20 00:55:21,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:55:21,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586964899] [2023-12-20 00:55:21,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586964899] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 00:55:21,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825450500] [2023-12-20 00:55:21,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:55:21,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:55:21,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:55:21,358 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 00:55:21,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-12-20 00:55:21,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:21,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 1452 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-20 00:55:21,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:55:21,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 357 proven. 0 refuted. 0 times theorem prover too weak. 943 trivial. 0 not checked. [2023-12-20 00:55:21,659 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 00:55:21,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825450500] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:55:21,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 00:55:21,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 11 [2023-12-20 00:55:21,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549462095] [2023-12-20 00:55:21,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:55:21,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 00:55:21,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:55:21,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 00:55:21,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-20 00:55:21,661 INFO L87 Difference]: Start difference. First operand 12511 states and 15145 transitions. Second operand has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 8 states have internal predecessors, (152), 3 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2023-12-20 00:55:28,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:55:28,265 INFO L93 Difference]: Finished difference Result 23087 states and 28357 transitions. [2023-12-20 00:55:28,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-20 00:55:28,265 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 8 states have internal predecessors, (152), 3 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 426 [2023-12-20 00:55:28,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:55:28,299 INFO L225 Difference]: With dead ends: 23087 [2023-12-20 00:55:28,299 INFO L226 Difference]: Without dead ends: 16199 [2023-12-20 00:55:28,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 513 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=415, Unknown=0, NotChecked=0, Total=506 [2023-12-20 00:55:28,312 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 406 mSDsluCounter, 2103 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 2579 SdHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 00:55:28,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 2579 Invalid, 993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 00:55:28,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16199 states. [2023-12-20 00:55:32,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16199 to 12307. [2023-12-20 00:55:32,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12307 states, 9552 states have (on average 1.179752931323283) internal successors, (11269), 9680 states have internal predecessors, (11269), 1760 states have call successors, (1760), 994 states have call predecessors, (1760), 994 states have return successors, (1760), 1632 states have call predecessors, (1760), 1760 states have call successors, (1760) [2023-12-20 00:55:32,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12307 states to 12307 states and 14789 transitions. [2023-12-20 00:55:32,327 INFO L78 Accepts]: Start accepts. Automaton has 12307 states and 14789 transitions. Word has length 426 [2023-12-20 00:55:32,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:55:32,327 INFO L495 AbstractCegarLoop]: Abstraction has 12307 states and 14789 transitions. [2023-12-20 00:55:32,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 8 states have internal predecessors, (152), 3 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2023-12-20 00:55:32,327 INFO L276 IsEmpty]: Start isEmpty. Operand 12307 states and 14789 transitions. [2023-12-20 00:55:32,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2023-12-20 00:55:32,336 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:55:32,337 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 11, 11, 11, 10, 10, 9, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:55:32,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-12-20 00:55:32,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:55:32,538 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:55:32,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:55:32,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1107262490, now seen corresponding path program 1 times [2023-12-20 00:55:32,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:55:32,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980008204] [2023-12-20 00:55:32,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:55:32,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:55:32,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:55:32,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:55:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:55:32,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:55:32,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:55:32,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:55:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:55:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:55:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:55:32,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:55:32,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:55:32,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:55:32,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:55:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:55:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:55:32,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:55:32,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:55:32,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:55:32,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:55:32,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 00:55:32,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-20 00:55:32,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-12-20 00:55:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-12-20 00:55:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-12-20 00:55:32,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-12-20 00:55:32,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-12-20 00:55:32,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-12-20 00:55:32,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-12-20 00:55:32,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2023-12-20 00:55:32,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-20 00:55:32,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-12-20 00:55:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2023-12-20 00:55:32,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2023-12-20 00:55:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2023-12-20 00:55:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-12-20 00:55:32,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2023-12-20 00:55:32,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2023-12-20 00:55:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2023-12-20 00:55:32,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2023-12-20 00:55:32,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:32,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2023-12-20 00:55:32,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:33,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2023-12-20 00:55:33,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:33,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2023-12-20 00:55:33,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:33,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1297 backedges. 47 proven. 64 refuted. 0 times theorem prover too weak. 1186 trivial. 0 not checked. [2023-12-20 00:55:33,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:55:33,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980008204] [2023-12-20 00:55:33,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980008204] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 00:55:33,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814489955] [2023-12-20 00:55:33,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:55:33,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:55:33,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:55:33,009 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 00:55:33,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-12-20 00:55:33,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:33,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 1455 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-20 00:55:33,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:55:33,435 INFO L134 CoverageAnalysis]: Checked inductivity of 1297 backedges. 544 proven. 96 refuted. 0 times theorem prover too weak. 657 trivial. 0 not checked. [2023-12-20 00:55:33,435 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 00:55:33,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1297 backedges. 52 proven. 70 refuted. 0 times theorem prover too weak. 1175 trivial. 0 not checked. [2023-12-20 00:55:33,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814489955] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 00:55:33,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 00:55:33,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 23 [2023-12-20 00:55:33,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033855270] [2023-12-20 00:55:33,856 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 00:55:33,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-20 00:55:33,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:55:33,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-20 00:55:33,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2023-12-20 00:55:33,857 INFO L87 Difference]: Start difference. First operand 12307 states and 14789 transitions. Second operand has 23 states, 23 states have (on average 10.130434782608695) internal successors, (233), 19 states have internal predecessors, (233), 5 states have call successors, (66), 9 states have call predecessors, (66), 15 states have return successors, (63), 8 states have call predecessors, (63), 5 states have call successors, (63) [2023-12-20 00:55:40,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:55:40,479 INFO L93 Difference]: Finished difference Result 21802 states and 26111 transitions. [2023-12-20 00:55:40,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-20 00:55:40,479 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 10.130434782608695) internal successors, (233), 19 states have internal predecessors, (233), 5 states have call successors, (66), 9 states have call predecessors, (66), 15 states have return successors, (63), 8 states have call predecessors, (63), 5 states have call successors, (63) Word has length 428 [2023-12-20 00:55:40,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:55:40,502 INFO L225 Difference]: With dead ends: 21802 [2023-12-20 00:55:40,502 INFO L226 Difference]: Without dead ends: 12356 [2023-12-20 00:55:40,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 991 GetRequests, 926 SyntacticMatches, 10 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=597, Invalid=2595, Unknown=0, NotChecked=0, Total=3192 [2023-12-20 00:55:40,512 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 1192 mSDsluCounter, 3256 mSDsCounter, 0 mSdLazyCounter, 2842 mSolverCounterSat, 465 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 3656 SdHoareTripleChecker+Invalid, 3307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 465 IncrementalHoareTripleChecker+Valid, 2842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-20 00:55:40,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1210 Valid, 3656 Invalid, 3307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [465 Valid, 2842 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-20 00:55:40,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12356 states. [2023-12-20 00:55:44,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12356 to 10345. [2023-12-20 00:55:44,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10345 states, 8032 states have (on average 1.1668326693227091) internal successors, (9372), 8151 states have internal predecessors, (9372), 1429 states have call successors, (1429), 883 states have call predecessors, (1429), 883 states have return successors, (1429), 1310 states have call predecessors, (1429), 1429 states have call successors, (1429) [2023-12-20 00:55:44,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10345 states to 10345 states and 12230 transitions. [2023-12-20 00:55:44,354 INFO L78 Accepts]: Start accepts. Automaton has 10345 states and 12230 transitions. Word has length 428 [2023-12-20 00:55:44,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:55:44,354 INFO L495 AbstractCegarLoop]: Abstraction has 10345 states and 12230 transitions. [2023-12-20 00:55:44,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.130434782608695) internal successors, (233), 19 states have internal predecessors, (233), 5 states have call successors, (66), 9 states have call predecessors, (66), 15 states have return successors, (63), 8 states have call predecessors, (63), 5 states have call successors, (63) [2023-12-20 00:55:44,354 INFO L276 IsEmpty]: Start isEmpty. Operand 10345 states and 12230 transitions. [2023-12-20 00:55:44,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2023-12-20 00:55:44,362 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:55:44,362 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 11, 11, 11, 10, 10, 9, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:55:44,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-12-20 00:55:44,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2023-12-20 00:55:44,570 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:55:44,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:55:44,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1980766252, now seen corresponding path program 1 times [2023-12-20 00:55:44,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:55:44,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734589389] [2023-12-20 00:55:44,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:55:44,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:55:44,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:55:44,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:55:44,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:55:44,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:55:44,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:55:44,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:55:44,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:55:44,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:55:44,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:55:44,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:55:44,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:55:44,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:55:44,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:55:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:55:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:55:44,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:55:44,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:55:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:55:44,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:55:44,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-20 00:55:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-12-20 00:55:44,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 00:55:44,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-20 00:55:44,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-20 00:55:44,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-20 00:55:44,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-12-20 00:55:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2023-12-20 00:55:44,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2023-12-20 00:55:44,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2023-12-20 00:55:44,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2023-12-20 00:55:44,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-12-20 00:55:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-12-20 00:55:44,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2023-12-20 00:55:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-12-20 00:55:44,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2023-12-20 00:55:44,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2023-12-20 00:55:44,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2023-12-20 00:55:44,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2023-12-20 00:55:44,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2023-12-20 00:55:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2023-12-20 00:55:44,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2023-12-20 00:55:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2023-12-20 00:55:44,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:44,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1299 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2023-12-20 00:55:44,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:55:44,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734589389] [2023-12-20 00:55:44,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734589389] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:55:44,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:55:44,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 00:55:44,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544852167] [2023-12-20 00:55:44,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:55:44,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 00:55:44,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:55:44,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 00:55:44,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-20 00:55:44,825 INFO L87 Difference]: Start difference. First operand 10345 states and 12230 transitions. Second operand has 10 states, 10 states have (on average 13.0) internal successors, (130), 8 states have internal predecessors, (130), 3 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-20 00:55:52,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:55:52,115 INFO L93 Difference]: Finished difference Result 19786 states and 23670 transitions. [2023-12-20 00:55:52,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-20 00:55:52,115 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.0) internal successors, (130), 8 states have internal predecessors, (130), 3 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) Word has length 428 [2023-12-20 00:55:52,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:55:52,144 INFO L225 Difference]: With dead ends: 19786 [2023-12-20 00:55:52,145 INFO L226 Difference]: Without dead ends: 14575 [2023-12-20 00:55:52,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=127, Invalid=629, Unknown=0, NotChecked=0, Total=756 [2023-12-20 00:55:52,154 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 476 mSDsluCounter, 1766 mSDsCounter, 0 mSdLazyCounter, 1830 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 2116 SdHoareTripleChecker+Invalid, 1928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 00:55:52,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [510 Valid, 2116 Invalid, 1928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1830 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 00:55:52,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14575 states. [2023-12-20 00:55:55,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14575 to 9341. [2023-12-20 00:55:55,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9341 states, 7258 states have (on average 1.163130338936346) internal successors, (8442), 7357 states have internal predecessors, (8442), 1279 states have call successors, (1279), 803 states have call predecessors, (1279), 803 states have return successors, (1279), 1180 states have call predecessors, (1279), 1279 states have call successors, (1279) [2023-12-20 00:55:55,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9341 states to 9341 states and 11000 transitions. [2023-12-20 00:55:55,901 INFO L78 Accepts]: Start accepts. Automaton has 9341 states and 11000 transitions. Word has length 428 [2023-12-20 00:55:55,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:55:55,901 INFO L495 AbstractCegarLoop]: Abstraction has 9341 states and 11000 transitions. [2023-12-20 00:55:55,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.0) internal successors, (130), 8 states have internal predecessors, (130), 3 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-20 00:55:55,902 INFO L276 IsEmpty]: Start isEmpty. Operand 9341 states and 11000 transitions. [2023-12-20 00:55:55,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2023-12-20 00:55:55,910 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:55:55,910 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 10, 10, 10, 10, 9, 8, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:55:55,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-12-20 00:55:55,910 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:55:55,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:55:55,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1663087563, now seen corresponding path program 1 times [2023-12-20 00:55:55,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:55:55,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207902932] [2023-12-20 00:55:55,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:55:55,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:55:55,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:55:56,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:55:56,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:55:56,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:55:56,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:55:56,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:55:56,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:55:56,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:55:56,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:55:56,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:55:56,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:55:56,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:55:56,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:55:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:55:56,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:55:56,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:55:56,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:55:56,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:55:56,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:55:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 00:55:56,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-20 00:55:56,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-12-20 00:55:56,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-12-20 00:55:56,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-12-20 00:55:56,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2023-12-20 00:55:56,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-12-20 00:55:56,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-12-20 00:55:56,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-12-20 00:55:56,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2023-12-20 00:55:56,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2023-12-20 00:55:56,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2023-12-20 00:55:56,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2023-12-20 00:55:56,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2023-12-20 00:55:56,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2023-12-20 00:55:56,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2023-12-20 00:55:56,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2023-12-20 00:55:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2023-12-20 00:55:56,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2023-12-20 00:55:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2023-12-20 00:55:56,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2023-12-20 00:55:56,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2023-12-20 00:55:56,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2023-12-20 00:55:56,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,433 INFO L134 CoverageAnalysis]: Checked inductivity of 1301 backedges. 22 proven. 23 refuted. 0 times theorem prover too weak. 1256 trivial. 0 not checked. [2023-12-20 00:55:56,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:55:56,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207902932] [2023-12-20 00:55:56,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207902932] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 00:55:56,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962694520] [2023-12-20 00:55:56,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:55:56,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:55:56,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:55:56,435 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 00:55:56,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-12-20 00:55:56,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:55:56,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 1447 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-20 00:55:56,657 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:55:57,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1301 backedges. 491 proven. 149 refuted. 0 times theorem prover too weak. 661 trivial. 0 not checked. [2023-12-20 00:55:57,394 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 00:55:57,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1301 backedges. 22 proven. 23 refuted. 0 times theorem prover too weak. 1256 trivial. 0 not checked. [2023-12-20 00:55:57,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962694520] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 00:55:57,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 00:55:57,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 17] total 41 [2023-12-20 00:55:57,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039619522] [2023-12-20 00:55:57,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 00:55:57,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-12-20 00:55:57,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:55:57,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-12-20 00:55:57,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1451, Unknown=0, NotChecked=0, Total=1640 [2023-12-20 00:55:57,928 INFO L87 Difference]: Start difference. First operand 9341 states and 11000 transitions. Second operand has 41 states, 39 states have (on average 9.794871794871796) internal successors, (382), 38 states have internal predecessors, (382), 18 states have call successors, (92), 7 states have call predecessors, (92), 11 states have return successors, (92), 18 states have call predecessors, (92), 18 states have call successors, (92) [2023-12-20 00:57:11,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:57:11,264 INFO L93 Difference]: Finished difference Result 103085 states and 125911 transitions. [2023-12-20 00:57:11,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 473 states. [2023-12-20 00:57:11,265 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 39 states have (on average 9.794871794871796) internal successors, (382), 38 states have internal predecessors, (382), 18 states have call successors, (92), 7 states have call predecessors, (92), 11 states have return successors, (92), 18 states have call predecessors, (92), 18 states have call successors, (92) Word has length 429 [2023-12-20 00:57:11,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:57:11,618 INFO L225 Difference]: With dead ends: 103085 [2023-12-20 00:57:11,618 INFO L226 Difference]: Without dead ends: 98301 [2023-12-20 00:57:11,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1484 GetRequests, 977 SyntacticMatches, 0 SemanticMatches, 507 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112198 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=20952, Invalid=237620, Unknown=0, NotChecked=0, Total=258572 [2023-12-20 00:57:11,660 INFO L413 NwaCegarLoop]: 1312 mSDtfsCounter, 2908 mSDsluCounter, 14552 mSDsCounter, 0 mSdLazyCounter, 27416 mSolverCounterSat, 967 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2928 SdHoareTripleChecker+Valid, 15864 SdHoareTripleChecker+Invalid, 28383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 967 IncrementalHoareTripleChecker+Valid, 27416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-12-20 00:57:11,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2928 Valid, 15864 Invalid, 28383 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [967 Valid, 27416 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2023-12-20 00:57:11,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98301 states. [2023-12-20 00:57:16,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98301 to 9341. [2023-12-20 00:57:16,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9341 states, 7258 states have (on average 1.163130338936346) internal successors, (8442), 7357 states have internal predecessors, (8442), 1279 states have call successors, (1279), 803 states have call predecessors, (1279), 803 states have return successors, (1279), 1180 states have call predecessors, (1279), 1279 states have call successors, (1279) [2023-12-20 00:57:16,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9341 states to 9341 states and 11000 transitions. [2023-12-20 00:57:16,988 INFO L78 Accepts]: Start accepts. Automaton has 9341 states and 11000 transitions. Word has length 429 [2023-12-20 00:57:16,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:57:16,989 INFO L495 AbstractCegarLoop]: Abstraction has 9341 states and 11000 transitions. [2023-12-20 00:57:16,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 39 states have (on average 9.794871794871796) internal successors, (382), 38 states have internal predecessors, (382), 18 states have call successors, (92), 7 states have call predecessors, (92), 11 states have return successors, (92), 18 states have call predecessors, (92), 18 states have call successors, (92) [2023-12-20 00:57:16,989 INFO L276 IsEmpty]: Start isEmpty. Operand 9341 states and 11000 transitions. [2023-12-20 00:57:16,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2023-12-20 00:57:16,997 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:57:16,997 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 11, 11, 11, 10, 10, 9, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:57:17,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-12-20 00:57:17,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2023-12-20 00:57:17,198 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:57:17,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:57:17,199 INFO L85 PathProgramCache]: Analyzing trace with hash -584297670, now seen corresponding path program 1 times [2023-12-20 00:57:17,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:57:17,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543285758] [2023-12-20 00:57:17,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:57:17,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:57:17,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:57:17,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:57:17,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:57:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:57:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:57:17,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:57:17,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:57:17,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:57:17,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:57:17,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:57:17,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:57:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:57:17,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:57:17,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:57:17,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:57:17,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:57:17,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:57:17,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:57:17,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:57:17,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-20 00:57:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-12-20 00:57:17,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 00:57:17,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-20 00:57:17,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-20 00:57:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-20 00:57:17,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-12-20 00:57:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2023-12-20 00:57:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2023-12-20 00:57:17,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2023-12-20 00:57:17,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2023-12-20 00:57:17,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-12-20 00:57:17,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-12-20 00:57:17,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2023-12-20 00:57:17,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-12-20 00:57:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2023-12-20 00:57:17,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2023-12-20 00:57:17,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2023-12-20 00:57:17,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2023-12-20 00:57:17,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2023-12-20 00:57:17,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2023-12-20 00:57:17,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2023-12-20 00:57:17,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2023-12-20 00:57:17,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:17,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1299 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 1270 trivial. 0 not checked. [2023-12-20 00:57:17,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:57:17,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543285758] [2023-12-20 00:57:17,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543285758] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:57:17,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:57:17,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 00:57:17,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588598574] [2023-12-20 00:57:17,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:57:17,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 00:57:17,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:57:17,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 00:57:17,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 00:57:17,321 INFO L87 Difference]: Start difference. First operand 9341 states and 11000 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-20 00:57:23,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:57:23,261 INFO L93 Difference]: Finished difference Result 15067 states and 17749 transitions. [2023-12-20 00:57:23,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 00:57:23,262 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 429 [2023-12-20 00:57:23,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:57:23,281 INFO L225 Difference]: With dead ends: 15067 [2023-12-20 00:57:23,281 INFO L226 Difference]: Without dead ends: 10481 [2023-12-20 00:57:23,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:57:23,288 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 179 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 00:57:23,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 560 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 00:57:23,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10481 states. [2023-12-20 00:57:27,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10481 to 9204. [2023-12-20 00:57:27,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9204 states, 7146 states have (on average 1.1557514693534845) internal successors, (8259), 7244 states have internal predecessors, (8259), 1263 states have call successors, (1263), 794 states have call predecessors, (1263), 794 states have return successors, (1263), 1165 states have call predecessors, (1263), 1263 states have call successors, (1263) [2023-12-20 00:57:27,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9204 states to 9204 states and 10785 transitions. [2023-12-20 00:57:27,729 INFO L78 Accepts]: Start accepts. Automaton has 9204 states and 10785 transitions. Word has length 429 [2023-12-20 00:57:27,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:57:27,730 INFO L495 AbstractCegarLoop]: Abstraction has 9204 states and 10785 transitions. [2023-12-20 00:57:27,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-20 00:57:27,730 INFO L276 IsEmpty]: Start isEmpty. Operand 9204 states and 10785 transitions. [2023-12-20 00:57:27,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2023-12-20 00:57:27,738 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:57:27,738 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 10, 10, 10, 10, 9, 8, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:57:27,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-12-20 00:57:27,738 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:57:27,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:57:27,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1547359572, now seen corresponding path program 1 times [2023-12-20 00:57:27,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:57:27,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722825143] [2023-12-20 00:57:27,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:57:27,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:57:27,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:57:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:57:27,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:57:27,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:57:27,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:57:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:57:27,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:57:27,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:57:27,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:57:27,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:57:27,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:57:27,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:57:27,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:57:27,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:57:27,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:57:27,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:57:27,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:57:27,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:57:27,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:57:27,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-12-20 00:57:27,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-20 00:57:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-12-20 00:57:27,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-12-20 00:57:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-20 00:57:27,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-12-20 00:57:27,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-12-20 00:57:27,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2023-12-20 00:57:27,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2023-12-20 00:57:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2023-12-20 00:57:27,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-12-20 00:57:27,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2023-12-20 00:57:27,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2023-12-20 00:57:27,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2023-12-20 00:57:27,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-12-20 00:57:27,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2023-12-20 00:57:27,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2023-12-20 00:57:27,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2023-12-20 00:57:27,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2023-12-20 00:57:27,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2023-12-20 00:57:27,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2023-12-20 00:57:27,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2023-12-20 00:57:27,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2023-12-20 00:57:27,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:27,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1301 backedges. 14 proven. 9 refuted. 0 times theorem prover too weak. 1278 trivial. 0 not checked. [2023-12-20 00:57:27,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:57:27,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722825143] [2023-12-20 00:57:27,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722825143] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 00:57:27,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991907034] [2023-12-20 00:57:27,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:57:27,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:57:27,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:57:27,952 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 00:57:27,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-12-20 00:57:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:28,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 1447 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-20 00:57:28,181 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:57:28,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1301 backedges. 533 proven. 91 refuted. 0 times theorem prover too weak. 677 trivial. 0 not checked. [2023-12-20 00:57:28,458 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 00:57:28,696 INFO L134 CoverageAnalysis]: Checked inductivity of 1301 backedges. 43 proven. 21 refuted. 0 times theorem prover too weak. 1237 trivial. 0 not checked. [2023-12-20 00:57:28,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991907034] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 00:57:28,697 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 00:57:28,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 14, 9] total 25 [2023-12-20 00:57:28,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83056416] [2023-12-20 00:57:28,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 00:57:28,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-20 00:57:28,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:57:28,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-20 00:57:28,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2023-12-20 00:57:28,708 INFO L87 Difference]: Start difference. First operand 9204 states and 10785 transitions. Second operand has 25 states, 22 states have (on average 11.818181818181818) internal successors, (260), 22 states have internal predecessors, (260), 9 states have call successors, (71), 7 states have call predecessors, (71), 10 states have return successors, (67), 8 states have call predecessors, (67), 9 states have call successors, (67) [2023-12-20 00:57:33,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:57:33,674 INFO L93 Difference]: Finished difference Result 15741 states and 18477 transitions. [2023-12-20 00:57:33,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-20 00:57:33,674 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 22 states have (on average 11.818181818181818) internal successors, (260), 22 states have internal predecessors, (260), 9 states have call successors, (71), 7 states have call predecessors, (71), 10 states have return successors, (67), 8 states have call predecessors, (67), 9 states have call successors, (67) Word has length 430 [2023-12-20 00:57:33,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:57:33,688 INFO L225 Difference]: With dead ends: 15741 [2023-12-20 00:57:33,688 INFO L226 Difference]: Without dead ends: 7047 [2023-12-20 00:57:33,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 967 GetRequests, 924 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=275, Invalid=1705, Unknown=0, NotChecked=0, Total=1980 [2023-12-20 00:57:33,697 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 429 mSDsluCounter, 2189 mSDsCounter, 0 mSdLazyCounter, 1772 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 2360 SdHoareTripleChecker+Invalid, 1898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 00:57:33,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 2360 Invalid, 1898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1772 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 00:57:33,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7047 states. [2023-12-20 00:57:37,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7047 to 6965. [2023-12-20 00:57:37,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6965 states, 5417 states have (on average 1.1508214879084364) internal successors, (6234), 5490 states have internal predecessors, (6234), 941 states have call successors, (941), 606 states have call predecessors, (941), 606 states have return successors, (941), 868 states have call predecessors, (941), 941 states have call successors, (941) [2023-12-20 00:57:37,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6965 states to 6965 states and 8116 transitions. [2023-12-20 00:57:37,330 INFO L78 Accepts]: Start accepts. Automaton has 6965 states and 8116 transitions. Word has length 430 [2023-12-20 00:57:37,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:57:37,330 INFO L495 AbstractCegarLoop]: Abstraction has 6965 states and 8116 transitions. [2023-12-20 00:57:37,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 22 states have (on average 11.818181818181818) internal successors, (260), 22 states have internal predecessors, (260), 9 states have call successors, (71), 7 states have call predecessors, (71), 10 states have return successors, (67), 8 states have call predecessors, (67), 9 states have call successors, (67) [2023-12-20 00:57:37,331 INFO L276 IsEmpty]: Start isEmpty. Operand 6965 states and 8116 transitions. [2023-12-20 00:57:37,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2023-12-20 00:57:37,337 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:57:37,338 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 11, 11, 11, 10, 10, 9, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:57:37,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-12-20 00:57:37,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2023-12-20 00:57:37,538 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:57:37,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:57:37,539 INFO L85 PathProgramCache]: Analyzing trace with hash -994242500, now seen corresponding path program 1 times [2023-12-20 00:57:37,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:57:37,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014196788] [2023-12-20 00:57:37,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:57:37,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:57:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:57:37,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:57:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:57:37,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:57:37,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:57:37,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:57:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:57:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:57:37,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:57:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:57:37,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:57:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:57:37,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:57:37,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:57:37,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:57:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:57:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:57:37,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:57:37,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:57:37,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-20 00:57:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-12-20 00:57:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 00:57:37,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-20 00:57:37,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-20 00:57:37,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-20 00:57:37,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-12-20 00:57:37,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2023-12-20 00:57:37,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2023-12-20 00:57:37,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2023-12-20 00:57:37,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2023-12-20 00:57:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-12-20 00:57:37,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-12-20 00:57:37,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2023-12-20 00:57:37,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-12-20 00:57:37,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2023-12-20 00:57:37,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2023-12-20 00:57:37,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2023-12-20 00:57:37,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2023-12-20 00:57:37,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2023-12-20 00:57:37,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2023-12-20 00:57:37,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2023-12-20 00:57:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2023-12-20 00:57:37,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1298 backedges. 46 proven. 2 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2023-12-20 00:57:37,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:57:37,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014196788] [2023-12-20 00:57:37,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014196788] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 00:57:37,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001552867] [2023-12-20 00:57:37,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:57:37,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:57:37,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:57:37,760 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 00:57:37,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-12-20 00:57:37,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:37,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 1461 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-20 00:57:37,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:57:38,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1298 backedges. 343 proven. 0 refuted. 0 times theorem prover too weak. 955 trivial. 0 not checked. [2023-12-20 00:57:38,024 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 00:57:38,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001552867] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:57:38,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 00:57:38,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2023-12-20 00:57:38,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175898693] [2023-12-20 00:57:38,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:57:38,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 00:57:38,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:57:38,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 00:57:38,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-12-20 00:57:38,025 INFO L87 Difference]: Start difference. First operand 6965 states and 8116 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 3 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-20 00:57:42,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:57:42,931 INFO L93 Difference]: Finished difference Result 12457 states and 14526 transitions. [2023-12-20 00:57:42,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 00:57:42,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 3 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 430 [2023-12-20 00:57:42,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:57:42,945 INFO L225 Difference]: With dead ends: 12457 [2023-12-20 00:57:42,946 INFO L226 Difference]: Without dead ends: 8875 [2023-12-20 00:57:42,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 513 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-12-20 00:57:42,951 INFO L413 NwaCegarLoop]: 346 mSDtfsCounter, 94 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:57:42,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 541 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 00:57:42,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8875 states. [2023-12-20 00:57:46,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8875 to 7682. [2023-12-20 00:57:46,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7682 states, 5958 states have (on average 1.1423296408190668) internal successors, (6806), 6045 states have internal predecessors, (6806), 1053 states have call successors, (1053), 670 states have call predecessors, (1053), 670 states have return successors, (1053), 966 states have call predecessors, (1053), 1053 states have call successors, (1053) [2023-12-20 00:57:46,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7682 states to 7682 states and 8912 transitions. [2023-12-20 00:57:46,949 INFO L78 Accepts]: Start accepts. Automaton has 7682 states and 8912 transitions. Word has length 430 [2023-12-20 00:57:46,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:57:46,950 INFO L495 AbstractCegarLoop]: Abstraction has 7682 states and 8912 transitions. [2023-12-20 00:57:46,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 3 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-20 00:57:46,950 INFO L276 IsEmpty]: Start isEmpty. Operand 7682 states and 8912 transitions. [2023-12-20 00:57:46,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2023-12-20 00:57:46,956 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:57:46,956 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 11, 11, 11, 10, 10, 9, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:57:46,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-12-20 00:57:47,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:57:47,157 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:57:47,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:57:47,157 INFO L85 PathProgramCache]: Analyzing trace with hash -670020621, now seen corresponding path program 1 times [2023-12-20 00:57:47,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:57:47,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90859929] [2023-12-20 00:57:47,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:57:47,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:57:47,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:57:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:57:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:57:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:57:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:57:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:57:47,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:57:47,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:57:47,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:57:47,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:57:47,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:57:47,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:57:47,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:57:47,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:57:47,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:57:47,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:57:47,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:57:47,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:57:47,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:57:47,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-20 00:57:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-12-20 00:57:47,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 00:57:47,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-20 00:57:47,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-12-20 00:57:47,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-20 00:57:47,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-12-20 00:57:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2023-12-20 00:57:47,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2023-12-20 00:57:47,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2023-12-20 00:57:47,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2023-12-20 00:57:47,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-12-20 00:57:47,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-12-20 00:57:47,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2023-12-20 00:57:47,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-12-20 00:57:47,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2023-12-20 00:57:47,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2023-12-20 00:57:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2023-12-20 00:57:47,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2023-12-20 00:57:47,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2023-12-20 00:57:47,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2023-12-20 00:57:47,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2023-12-20 00:57:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2023-12-20 00:57:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1299 backedges. 67 proven. 50 refuted. 0 times theorem prover too weak. 1182 trivial. 0 not checked. [2023-12-20 00:57:47,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:57:47,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90859929] [2023-12-20 00:57:47,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90859929] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 00:57:47,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719486439] [2023-12-20 00:57:47,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:57:47,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:57:47,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:57:47,713 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 00:57:47,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-12-20 00:57:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:57:47,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 1459 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-20 00:57:47,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:57:48,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1299 backedges. 560 proven. 89 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2023-12-20 00:57:48,173 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 00:57:48,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1299 backedges. 75 proven. 53 refuted. 0 times theorem prover too weak. 1171 trivial. 0 not checked. [2023-12-20 00:57:48,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719486439] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 00:57:48,613 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 00:57:48,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 22 [2023-12-20 00:57:48,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054870742] [2023-12-20 00:57:48,613 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 00:57:48,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-20 00:57:48,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:57:48,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-20 00:57:48,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=398, Unknown=0, NotChecked=0, Total=462 [2023-12-20 00:57:48,615 INFO L87 Difference]: Start difference. First operand 7682 states and 8912 transitions. Second operand has 22 states, 22 states have (on average 10.318181818181818) internal successors, (227), 18 states have internal predecessors, (227), 4 states have call successors, (63), 9 states have call predecessors, (63), 15 states have return successors, (58), 7 states have call predecessors, (58), 4 states have call successors, (58) [2023-12-20 00:57:59,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:57:59,351 INFO L93 Difference]: Finished difference Result 18644 states and 21682 transitions. [2023-12-20 00:57:59,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-20 00:57:59,352 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 10.318181818181818) internal successors, (227), 18 states have internal predecessors, (227), 4 states have call successors, (63), 9 states have call predecessors, (63), 15 states have return successors, (58), 7 states have call predecessors, (58), 4 states have call successors, (58) Word has length 430 [2023-12-20 00:57:59,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:57:59,378 INFO L225 Difference]: With dead ends: 18644 [2023-12-20 00:57:59,378 INFO L226 Difference]: Without dead ends: 13696 [2023-12-20 00:57:59,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1022 GetRequests, 950 SyntacticMatches, 9 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 895 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=731, Invalid=3429, Unknown=0, NotChecked=0, Total=4160 [2023-12-20 00:57:59,386 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 1000 mSDsluCounter, 4196 mSDsCounter, 0 mSdLazyCounter, 2942 mSolverCounterSat, 366 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 4665 SdHoareTripleChecker+Invalid, 3308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 366 IncrementalHoareTripleChecker+Valid, 2942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-20 00:57:59,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1004 Valid, 4665 Invalid, 3308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [366 Valid, 2942 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-20 00:57:59,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13696 states. [2023-12-20 00:58:04,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13696 to 9212. [2023-12-20 00:58:04,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9212 states, 7134 states have (on average 1.1327446033081021) internal successors, (8081), 7223 states have internal predecessors, (8081), 1251 states have call successors, (1251), 826 states have call predecessors, (1251), 826 states have return successors, (1251), 1162 states have call predecessors, (1251), 1251 states have call successors, (1251) [2023-12-20 00:58:04,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9212 states to 9212 states and 10583 transitions. [2023-12-20 00:58:04,821 INFO L78 Accepts]: Start accepts. Automaton has 9212 states and 10583 transitions. Word has length 430 [2023-12-20 00:58:04,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:58:04,821 INFO L495 AbstractCegarLoop]: Abstraction has 9212 states and 10583 transitions. [2023-12-20 00:58:04,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 10.318181818181818) internal successors, (227), 18 states have internal predecessors, (227), 4 states have call successors, (63), 9 states have call predecessors, (63), 15 states have return successors, (58), 7 states have call predecessors, (58), 4 states have call successors, (58) [2023-12-20 00:58:04,822 INFO L276 IsEmpty]: Start isEmpty. Operand 9212 states and 10583 transitions. [2023-12-20 00:58:04,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2023-12-20 00:58:04,830 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:58:04,830 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 11, 11, 11, 10, 10, 9, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:58:04,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-12-20 00:58:05,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2023-12-20 00:58:05,031 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:58:05,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:58:05,031 INFO L85 PathProgramCache]: Analyzing trace with hash -916469894, now seen corresponding path program 1 times [2023-12-20 00:58:05,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:58:05,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382112080] [2023-12-20 00:58:05,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:58:05,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:58:05,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:58:05,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:58:05,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:58:05,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:58:05,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:58:05,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:58:05,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:58:05,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:58:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:58:05,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:58:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:58:05,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:58:05,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:58:05,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:58:05,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:58:05,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:58:05,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:58:05,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:58:05,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:58:05,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-20 00:58:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-12-20 00:58:05,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-20 00:58:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-12-20 00:58:05,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-20 00:58:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-20 00:58:05,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-12-20 00:58:05,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-20 00:58:05,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-12-20 00:58:05,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-12-20 00:58:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-20 00:58:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2023-12-20 00:58:05,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2023-12-20 00:58:05,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2023-12-20 00:58:05,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-12-20 00:58:05,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2023-12-20 00:58:05,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2023-12-20 00:58:05,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2023-12-20 00:58:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2023-12-20 00:58:05,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2023-12-20 00:58:05,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2023-12-20 00:58:05,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2023-12-20 00:58:05,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2023-12-20 00:58:05,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2023-12-20 00:58:05,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:05,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1319 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 1270 trivial. 0 not checked. [2023-12-20 00:58:05,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:58:05,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382112080] [2023-12-20 00:58:05,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382112080] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:58:05,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:58:05,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 00:58:05,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843562717] [2023-12-20 00:58:05,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:58:05,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 00:58:05,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:58:05,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 00:58:05,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-20 00:58:05,248 INFO L87 Difference]: Start difference. First operand 9212 states and 10583 transitions. Second operand has 10 states, 10 states have (on average 13.5) internal successors, (135), 8 states have internal predecessors, (135), 3 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-20 00:58:14,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:58:14,599 INFO L93 Difference]: Finished difference Result 16912 states and 19595 transitions. [2023-12-20 00:58:14,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-20 00:58:14,600 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.5) internal successors, (135), 8 states have internal predecessors, (135), 3 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 437 [2023-12-20 00:58:14,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:58:14,618 INFO L225 Difference]: With dead ends: 16912 [2023-12-20 00:58:14,618 INFO L226 Difference]: Without dead ends: 12286 [2023-12-20 00:58:14,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=127, Invalid=629, Unknown=0, NotChecked=0, Total=756 [2023-12-20 00:58:14,624 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 432 mSDsluCounter, 1768 mSDsCounter, 0 mSdLazyCounter, 1922 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 2123 SdHoareTripleChecker+Invalid, 2010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 00:58:14,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 2123 Invalid, 2010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1922 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 00:58:14,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12286 states. [2023-12-20 00:58:19,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12286 to 9088. [2023-12-20 00:58:19,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9088 states, 7038 states have (on average 1.1297243535095198) internal successors, (7951), 7123 states have internal predecessors, (7951), 1227 states have call successors, (1227), 822 states have call predecessors, (1227), 822 states have return successors, (1227), 1142 states have call predecessors, (1227), 1227 states have call successors, (1227) [2023-12-20 00:58:19,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9088 states to 9088 states and 10405 transitions. [2023-12-20 00:58:19,968 INFO L78 Accepts]: Start accepts. Automaton has 9088 states and 10405 transitions. Word has length 437 [2023-12-20 00:58:19,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:58:19,969 INFO L495 AbstractCegarLoop]: Abstraction has 9088 states and 10405 transitions. [2023-12-20 00:58:19,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.5) internal successors, (135), 8 states have internal predecessors, (135), 3 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-20 00:58:19,969 INFO L276 IsEmpty]: Start isEmpty. Operand 9088 states and 10405 transitions. [2023-12-20 00:58:19,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2023-12-20 00:58:19,977 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:58:19,977 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 11, 11, 11, 10, 10, 9, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:58:19,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2023-12-20 00:58:19,977 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:58:19,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:58:19,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1186145087, now seen corresponding path program 1 times [2023-12-20 00:58:19,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:58:19,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797076132] [2023-12-20 00:58:19,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:58:19,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:58:19,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:58:20,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:58:20,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:58:20,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:58:20,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:58:20,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:58:20,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:58:20,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:58:20,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:58:20,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:58:20,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:58:20,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:58:20,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:58:20,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:58:20,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:58:20,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:58:20,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:58:20,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:58:20,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:58:20,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-20 00:58:20,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-12-20 00:58:20,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-20 00:58:20,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-12-20 00:58:20,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-20 00:58:20,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-20 00:58:20,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-12-20 00:58:20,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-20 00:58:20,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-12-20 00:58:20,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-12-20 00:58:20,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-20 00:58:20,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2023-12-20 00:58:20,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2023-12-20 00:58:20,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2023-12-20 00:58:20,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-12-20 00:58:20,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2023-12-20 00:58:20,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2023-12-20 00:58:20,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2023-12-20 00:58:20,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2023-12-20 00:58:20,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2023-12-20 00:58:20,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2023-12-20 00:58:20,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2023-12-20 00:58:20,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2023-12-20 00:58:20,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2023-12-20 00:58:20,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1318 backedges. 46 proven. 2 refuted. 0 times theorem prover too weak. 1270 trivial. 0 not checked. [2023-12-20 00:58:20,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:58:20,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797076132] [2023-12-20 00:58:20,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797076132] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 00:58:20,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275106338] [2023-12-20 00:58:20,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:58:20,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:58:20,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:58:20,242 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 00:58:20,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-12-20 00:58:20,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:20,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 1475 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-20 00:58:20,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:58:20,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1318 backedges. 359 proven. 0 refuted. 0 times theorem prover too weak. 959 trivial. 0 not checked. [2023-12-20 00:58:20,523 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 00:58:20,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275106338] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:58:20,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 00:58:20,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 11 [2023-12-20 00:58:20,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355209595] [2023-12-20 00:58:20,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:58:20,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 00:58:20,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:58:20,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 00:58:20,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-20 00:58:20,525 INFO L87 Difference]: Start difference. First operand 9088 states and 10405 transitions. Second operand has 9 states, 9 states have (on average 17.666666666666668) internal successors, (159), 8 states have internal predecessors, (159), 3 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2023-12-20 00:58:28,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:58:28,388 INFO L93 Difference]: Finished difference Result 16237 states and 18679 transitions. [2023-12-20 00:58:28,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 00:58:28,389 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.666666666666668) internal successors, (159), 8 states have internal predecessors, (159), 3 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) Word has length 437 [2023-12-20 00:58:28,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:58:28,406 INFO L225 Difference]: With dead ends: 16237 [2023-12-20 00:58:28,406 INFO L226 Difference]: Without dead ends: 11499 [2023-12-20 00:58:28,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 540 GetRequests, 524 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2023-12-20 00:58:28,411 INFO L413 NwaCegarLoop]: 354 mSDtfsCounter, 353 mSDsluCounter, 1730 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 2084 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 00:58:28,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 2084 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 00:58:28,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11499 states. [2023-12-20 00:58:33,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11499 to 9058. [2023-12-20 00:58:33,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9058 states, 7018 states have (on average 1.1258193217440866) internal successors, (7901), 7103 states have internal predecessors, (7901), 1217 states have call successors, (1217), 822 states have call predecessors, (1217), 822 states have return successors, (1217), 1132 states have call predecessors, (1217), 1217 states have call successors, (1217) [2023-12-20 00:58:33,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9058 states to 9058 states and 10335 transitions. [2023-12-20 00:58:33,656 INFO L78 Accepts]: Start accepts. Automaton has 9058 states and 10335 transitions. Word has length 437 [2023-12-20 00:58:33,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:58:33,656 INFO L495 AbstractCegarLoop]: Abstraction has 9058 states and 10335 transitions. [2023-12-20 00:58:33,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.666666666666668) internal successors, (159), 8 states have internal predecessors, (159), 3 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2023-12-20 00:58:33,656 INFO L276 IsEmpty]: Start isEmpty. Operand 9058 states and 10335 transitions. [2023-12-20 00:58:33,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2023-12-20 00:58:33,664 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:58:33,664 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 11, 11, 11, 10, 10, 9, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:58:33,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-12-20 00:58:33,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable60 [2023-12-20 00:58:33,865 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:58:33,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:58:33,865 INFO L85 PathProgramCache]: Analyzing trace with hash -861923208, now seen corresponding path program 1 times [2023-12-20 00:58:33,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:58:33,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491897223] [2023-12-20 00:58:33,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:58:33,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:58:33,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:58:33,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:58:33,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:58:33,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:58:33,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:58:33,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:58:33,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:58:33,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:58:33,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:58:33,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:58:33,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:58:33,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:58:33,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:58:33,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:58:33,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:58:33,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:58:33,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:58:33,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:58:33,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:58:33,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-20 00:58:33,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-12-20 00:58:33,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-20 00:58:33,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-12-20 00:58:33,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-20 00:58:33,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-20 00:58:33,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-12-20 00:58:33,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-20 00:58:33,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-12-20 00:58:33,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-12-20 00:58:33,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-20 00:58:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2023-12-20 00:58:33,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2023-12-20 00:58:33,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2023-12-20 00:58:33,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-12-20 00:58:33,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2023-12-20 00:58:33,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2023-12-20 00:58:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2023-12-20 00:58:33,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2023-12-20 00:58:33,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2023-12-20 00:58:33,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2023-12-20 00:58:33,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2023-12-20 00:58:33,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2023-12-20 00:58:33,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2023-12-20 00:58:33,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:33,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1319 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 1290 trivial. 0 not checked. [2023-12-20 00:58:33,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:58:33,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491897223] [2023-12-20 00:58:33,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491897223] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:58:33,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:58:33,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 00:58:33,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325617185] [2023-12-20 00:58:33,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:58:33,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 00:58:33,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:58:33,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 00:58:33,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 00:58:33,979 INFO L87 Difference]: Start difference. First operand 9058 states and 10335 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-20 00:58:41,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:58:41,227 INFO L93 Difference]: Finished difference Result 15231 states and 17367 transitions. [2023-12-20 00:58:41,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 00:58:41,228 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 437 [2023-12-20 00:58:41,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:58:41,248 INFO L225 Difference]: With dead ends: 15231 [2023-12-20 00:58:41,248 INFO L226 Difference]: Without dead ends: 10847 [2023-12-20 00:58:41,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:58:41,253 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 169 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 00:58:41,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 542 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 00:58:41,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10847 states. [2023-12-20 00:58:46,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10847 to 8947. [2023-12-20 00:58:46,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8947 states, 6931 states have (on average 1.1219160294329822) internal successors, (7776), 7012 states have internal predecessors, (7776), 1203 states have call successors, (1203), 812 states have call predecessors, (1203), 812 states have return successors, (1203), 1122 states have call predecessors, (1203), 1203 states have call successors, (1203) [2023-12-20 00:58:46,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8947 states to 8947 states and 10182 transitions. [2023-12-20 00:58:46,537 INFO L78 Accepts]: Start accepts. Automaton has 8947 states and 10182 transitions. Word has length 437 [2023-12-20 00:58:46,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:58:46,537 INFO L495 AbstractCegarLoop]: Abstraction has 8947 states and 10182 transitions. [2023-12-20 00:58:46,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-20 00:58:46,537 INFO L276 IsEmpty]: Start isEmpty. Operand 8947 states and 10182 transitions. [2023-12-20 00:58:46,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2023-12-20 00:58:46,544 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:58:46,545 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 11, 11, 11, 10, 10, 9, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:58:46,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2023-12-20 00:58:46,545 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:58:46,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:58:46,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1114677503, now seen corresponding path program 1 times [2023-12-20 00:58:46,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:58:46,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854753717] [2023-12-20 00:58:46,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:58:46,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:58:46,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:58:46,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:58:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:58:46,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:58:46,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:58:46,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:58:46,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:58:46,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:58:46,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:58:46,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:58:46,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:58:46,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:58:46,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:58:46,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:58:46,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:58:46,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:58:46,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:58:46,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:58:46,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:58:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-20 00:58:46,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-12-20 00:58:46,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-20 00:58:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-12-20 00:58:46,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-20 00:58:46,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-20 00:58:46,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-12-20 00:58:46,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-20 00:58:46,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-12-20 00:58:46,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-12-20 00:58:46,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-20 00:58:46,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2023-12-20 00:58:46,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2023-12-20 00:58:46,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2023-12-20 00:58:46,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-12-20 00:58:46,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2023-12-20 00:58:46,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2023-12-20 00:58:46,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2023-12-20 00:58:46,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2023-12-20 00:58:46,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2023-12-20 00:58:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2023-12-20 00:58:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2023-12-20 00:58:46,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2023-12-20 00:58:46,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2023-12-20 00:58:46,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:46,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1318 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1304 trivial. 0 not checked. [2023-12-20 00:58:46,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:58:46,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854753717] [2023-12-20 00:58:46,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854753717] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:58:46,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:58:46,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 00:58:46,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476200153] [2023-12-20 00:58:46,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:58:46,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 00:58:46,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:58:46,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 00:58:46,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:58:46,697 INFO L87 Difference]: Start difference. First operand 8947 states and 10182 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 4 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2023-12-20 00:58:52,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:58:52,353 INFO L93 Difference]: Finished difference Result 13491 states and 15465 transitions. [2023-12-20 00:58:52,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 00:58:52,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 4 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 437 [2023-12-20 00:58:52,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:58:52,368 INFO L225 Difference]: With dead ends: 13491 [2023-12-20 00:58:52,369 INFO L226 Difference]: Without dead ends: 9158 [2023-12-20 00:58:52,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:58:52,374 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 72 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 00:58:52,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 590 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 00:58:52,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9158 states. [2023-12-20 00:58:57,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9158 to 8947. [2023-12-20 00:58:57,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8947 states, 6931 states have (on average 1.1204732361852547) internal successors, (7766), 7012 states have internal predecessors, (7766), 1203 states have call successors, (1203), 812 states have call predecessors, (1203), 812 states have return successors, (1203), 1122 states have call predecessors, (1203), 1203 states have call successors, (1203) [2023-12-20 00:58:57,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8947 states to 8947 states and 10172 transitions. [2023-12-20 00:58:57,547 INFO L78 Accepts]: Start accepts. Automaton has 8947 states and 10172 transitions. Word has length 437 [2023-12-20 00:58:57,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:58:57,547 INFO L495 AbstractCegarLoop]: Abstraction has 8947 states and 10172 transitions. [2023-12-20 00:58:57,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 4 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2023-12-20 00:58:57,547 INFO L276 IsEmpty]: Start isEmpty. Operand 8947 states and 10172 transitions. [2023-12-20 00:58:57,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2023-12-20 00:58:57,556 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:58:57,556 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 11, 11, 11, 10, 10, 9, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:58:57,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2023-12-20 00:58:57,556 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:58:57,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:58:57,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1507704513, now seen corresponding path program 1 times [2023-12-20 00:58:57,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:58:57,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207476797] [2023-12-20 00:58:57,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:58:57,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:58:57,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:58:57,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 00:58:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 00:58:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 00:58:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 00:58:57,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-20 00:58:57,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-20 00:58:57,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 00:58:57,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 00:58:57,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-20 00:58:57,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:58:57,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:58:57,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 00:58:57,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-20 00:58:57,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-20 00:58:57,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 00:58:57,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 00:58:57,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 00:58:57,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 00:58:57,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-20 00:58:57,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-12-20 00:58:57,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-20 00:58:57,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-12-20 00:58:57,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-20 00:58:57,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-20 00:58:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-12-20 00:58:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-20 00:58:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-12-20 00:58:57,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-12-20 00:58:57,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-20 00:58:57,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2023-12-20 00:58:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2023-12-20 00:58:57,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2023-12-20 00:58:57,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-12-20 00:58:57,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2023-12-20 00:58:57,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2023-12-20 00:58:57,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2023-12-20 00:58:57,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2023-12-20 00:58:57,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2023-12-20 00:58:57,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2023-12-20 00:58:57,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2023-12-20 00:58:57,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2023-12-20 00:58:57,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2023-12-20 00:58:57,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:58:57,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1318 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1270 trivial. 0 not checked. [2023-12-20 00:58:57,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:58:57,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207476797] [2023-12-20 00:58:57,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207476797] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:58:57,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:58:57,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 00:58:57,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762294539] [2023-12-20 00:58:57,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:58:57,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 00:58:57,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:58:57,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 00:58:57,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-20 00:58:57,751 INFO L87 Difference]: Start difference. First operand 8947 states and 10172 transitions. Second operand has 10 states, 10 states have (on average 13.5) internal successors, (135), 8 states have internal predecessors, (135), 3 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-20 00:59:06,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:59:06,245 INFO L93 Difference]: Finished difference Result 15993 states and 18269 transitions. [2023-12-20 00:59:06,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-20 00:59:06,245 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.5) internal successors, (135), 8 states have internal predecessors, (135), 3 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 437 [2023-12-20 00:59:06,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:59:06,249 INFO L225 Difference]: With dead ends: 15993 [2023-12-20 00:59:06,249 INFO L226 Difference]: Without dead ends: 0 [2023-12-20 00:59:06,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2023-12-20 00:59:06,261 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 374 mSDsluCounter, 1557 mSDsCounter, 0 mSdLazyCounter, 1536 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 1861 SdHoareTripleChecker+Invalid, 1618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 00:59:06,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 1861 Invalid, 1618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1536 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 00:59:06,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-20 00:59:06,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-20 00:59:06,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2023-12-20 00:59:06,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-20 00:59:06,262 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 437 [2023-12-20 00:59:06,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:59:06,262 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-20 00:59:06,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.5) internal successors, (135), 8 states have internal predecessors, (135), 3 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-20 00:59:06,263 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-20 00:59:06,263 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-20 00:59:06,271 INFO L805 garLoopResultBuilder]: Registering result SAFE for location assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-20 00:59:06,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2023-12-20 00:59:06,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. Received shutdown request... [2023-12-20 01:04:10,435 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 [2023-12-20 01:04:10,444 WARN L619 AbstractCegarLoop]: Verification canceled: while PolyPacSimplificationTermWalker was simplifying a ∨-6-7-24-12-3-7-8-7-17-11-17-11-17-11-17-11-17-11-16-10-7-7-7-7-6-7-6-7-6-4-6-4-5-4-4-4-3-3-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-104-12-24-12-17-10-17-10-17-11-17-11-17-11-17-11-17-11-16-10-7-7-7-7-6-7-6-7-6-4-6-4-5-4-4-4-3-3-2-3-1 context. [2023-12-20 01:04:10,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-20 01:04:10,582 INFO L257 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2023-12-20 01:04:10,583 INFO L158 Benchmark]: Toolchain (without parser) took 821278.04ms. Allocated memory was 211.8MB in the beginning and 3.6GB in the end (delta: 3.4GB). Free memory was 173.3MB in the beginning and 996.0MB in the end (delta: -822.7MB). Peak memory consumption was 2.6GB. Max. memory is 8.0GB. [2023-12-20 01:04:10,583 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 211.8MB. Free memory is still 158.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 01:04:10,584 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.95ms. Allocated memory is still 211.8MB. Free memory was 172.9MB in the beginning and 156.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-20 01:04:10,584 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.46ms. Allocated memory is still 211.8MB. Free memory was 156.1MB in the beginning and 153.4MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-20 01:04:10,584 INFO L158 Benchmark]: Boogie Preprocessor took 62.59ms. Allocated memory is still 211.8MB. Free memory was 153.4MB in the beginning and 149.6MB in the end (delta: 3.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-20 01:04:10,584 INFO L158 Benchmark]: RCFGBuilder took 657.62ms. Allocated memory was 211.8MB in the beginning and 289.4MB in the end (delta: 77.6MB). Free memory was 149.6MB in the beginning and 255.8MB in the end (delta: -106.3MB). Peak memory consumption was 37.9MB. Max. memory is 8.0GB. [2023-12-20 01:04:10,584 INFO L158 Benchmark]: TraceAbstraction took 820153.87ms. Allocated memory was 289.4MB in the beginning and 3.6GB in the end (delta: 3.3GB). Free memory was 255.3MB in the beginning and 996.0MB in the end (delta: -740.7MB). Peak memory consumption was 2.6GB. Max. memory is 8.0GB. [2023-12-20 01:04:10,584 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 211.8MB. Free memory is still 158.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 340.95ms. Allocated memory is still 211.8MB. Free memory was 172.9MB in the beginning and 156.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 58.46ms. Allocated memory is still 211.8MB. Free memory was 156.1MB in the beginning and 153.4MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 62.59ms. Allocated memory is still 211.8MB. Free memory was 153.4MB in the beginning and 149.6MB in the end (delta: 3.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 657.62ms. Allocated memory was 211.8MB in the beginning and 289.4MB in the end (delta: 77.6MB). Free memory was 149.6MB in the beginning and 255.8MB in the end (delta: -106.3MB). Peak memory consumption was 37.9MB. Max. memory is 8.0GB. * TraceAbstraction took 820153.87ms. Allocated memory was 289.4MB in the beginning and 3.6GB in the end (delta: 3.3GB). Free memory was 255.3MB in the beginning and 996.0MB in the end (delta: -740.7MB). Peak memory consumption was 2.6GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while PolyPacSimplificationTermWalker was simplifying a ∨-6-7-24-12-3-7-8-7-17-11-17-11-17-11-17-11-17-11-16-10-7-7-7-7-6-7-6-7-6-4-6-4-5-4-4-4-3-3-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-43-12-24-12-5-7-17-17-17-17-17-16-17-12-17-11-17-11-16-10-7-7-7-7-6-7-6-7-6-4-6-4-5-4-4-4-3-3-2-3-1 context. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown