/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-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 02:29:59,220 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 02:29:59,293 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 02:29:59,297 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 02:29:59,298 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 02:29:59,320 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 02:29:59,320 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 02:29:59,320 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 02:29:59,321 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 02:29:59,324 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 02:29:59,324 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 02:29:59,324 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 02:29:59,325 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 02:29:59,326 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 02:29:59,326 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 02:29:59,326 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 02:29:59,326 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 02:29:59,326 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 02:29:59,327 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 02:29:59,327 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 02:29:59,327 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 02:29:59,336 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 02:29:59,336 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 02:29:59,336 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 02:29:59,337 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 02:29:59,337 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 02:29:59,337 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 02:29:59,337 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 02:29:59,338 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 02:29:59,338 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 02:29:59,338 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 02:29:59,338 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 02:29:59,339 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 02:29:59,339 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 02:29:59,339 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 02:29:59,339 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 02:29:59,339 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 02:29:59,339 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 02:29:59,339 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 02:29:59,339 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 02:29:59,339 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 02:29:59,340 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 02:29:59,340 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 02:29:59,340 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-20 02:29:59,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 02:29:59,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 02:29:59,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 02:29:59,566 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 02:29:59,567 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 02:29:59,567 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2023-12-20 02:30:00,545 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 02:30:00,768 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 02:30:00,769 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2023-12-20 02:30:00,782 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/160864b5d/b89465b6eb724f63a4a37d34115fa5db/FLAG428895873 [2023-12-20 02:30:00,796 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/160864b5d/b89465b6eb724f63a4a37d34115fa5db [2023-12-20 02:30:00,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 02:30:00,799 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 02:30:00,801 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 02:30:00,802 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 02:30:00,805 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 02:30:00,806 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 02:30:00" (1/1) ... [2023-12-20 02:30:00,807 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12e89575 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:30:00, skipping insertion in model container [2023-12-20 02:30:00,807 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 02:30:00" (1/1) ... [2023-12-20 02:30:00,860 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 02:30:01,069 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-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14164,14177] [2023-12-20 02:30:01,079 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-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14811,14824] [2023-12-20 02:30:01,089 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-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[16044,16057] [2023-12-20 02:30:01,098 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-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[17104,17117] [2023-12-20 02:30:01,144 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-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[25495,25508] [2023-12-20 02:30:01,179 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 02:30:01,190 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 02:30:01,292 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-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14164,14177] [2023-12-20 02:30:01,301 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-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14811,14824] [2023-12-20 02:30:01,323 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-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[16044,16057] [2023-12-20 02:30:01,339 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-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[17104,17117] [2023-12-20 02:30:01,380 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-reduced/pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[25495,25508] [2023-12-20 02:30:01,418 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 02:30:01,433 INFO L206 MainTranslator]: Completed translation [2023-12-20 02:30:01,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:30:01 WrapperNode [2023-12-20 02:30:01,433 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 02:30:01,435 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 02:30:01,435 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 02:30:01,435 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 02:30:01,440 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:30:01" (1/1) ... [2023-12-20 02:30:01,464 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:30:01" (1/1) ... [2023-12-20 02:30:01,534 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1627 [2023-12-20 02:30:01,535 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 02:30:01,536 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 02:30:01,536 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 02:30:01,536 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 02:30:01,546 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:30:01" (1/1) ... [2023-12-20 02:30:01,547 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:30:01" (1/1) ... [2023-12-20 02:30:01,552 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:30:01" (1/1) ... [2023-12-20 02:30:01,612 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 02:30:01,612 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:30:01" (1/1) ... [2023-12-20 02:30:01,612 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:30:01" (1/1) ... [2023-12-20 02:30:01,641 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:30:01" (1/1) ... [2023-12-20 02:30:01,650 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:30:01" (1/1) ... [2023-12-20 02:30:01,655 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:30:01" (1/1) ... [2023-12-20 02:30:01,661 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:30:01" (1/1) ... [2023-12-20 02:30:01,670 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 02:30:01,671 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 02:30:01,671 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 02:30:01,671 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 02:30:01,672 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:30:01" (1/1) ... [2023-12-20 02:30:01,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 02:30:01,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:30:01,701 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 02:30:01,749 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 02:30:01,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 02:30:01,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 02:30:01,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 02:30:01,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 02:30:01,942 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 02:30:01,944 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 02:30:02,684 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 02:30:02,742 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 02:30:02,743 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-20 02:30:02,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 02:30:02 BoogieIcfgContainer [2023-12-20 02:30:02,743 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 02:30:02,745 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 02:30:02,746 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 02:30:02,748 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 02:30:02,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 02:30:00" (1/3) ... [2023-12-20 02:30:02,749 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52da2d79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 02:30:02, skipping insertion in model container [2023-12-20 02:30:02,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:30:01" (2/3) ... [2023-12-20 02:30:02,750 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52da2d79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 02:30:02, skipping insertion in model container [2023-12-20 02:30:02,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 02:30:02" (3/3) ... [2023-12-20 02:30:02,751 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2023-12-20 02:30:02,764 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 02:30:02,764 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-12-20 02:30:02,809 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 02:30:02,815 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;@50d4b022, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 02:30:02,815 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-12-20 02:30:02,833 INFO L276 IsEmpty]: Start isEmpty. Operand has 375 states, 369 states have (on average 1.8319783197831978) internal successors, (676), 374 states have internal predecessors, (676), 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 02:30:02,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-20 02:30:02,848 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:30:02,848 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:30:02,849 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:30:02,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:30:02,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1543552980, now seen corresponding path program 1 times [2023-12-20 02:30:02,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:30:02,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381043196] [2023-12-20 02:30:02,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:30:02,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:30:03,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:30:03,290 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 02:30:03,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:30:03,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381043196] [2023-12-20 02:30:03,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381043196] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:30:03,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:30:03,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:30:03,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310974150] [2023-12-20 02:30:03,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:30:03,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:30:03,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:30:03,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:30:03,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:30:03,326 INFO L87 Difference]: Start difference. First operand has 375 states, 369 states have (on average 1.8319783197831978) internal successors, (676), 374 states have internal predecessors, (676), 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) Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 02:30:03,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:30:03,474 INFO L93 Difference]: Finished difference Result 679 states and 1213 transitions. [2023-12-20 02:30:03,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:30:03,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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) Word has length 138 [2023-12-20 02:30:03,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:30:03,485 INFO L225 Difference]: With dead ends: 679 [2023-12-20 02:30:03,486 INFO L226 Difference]: Without dead ends: 545 [2023-12-20 02:30:03,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 02:30:03,490 INFO L413 NwaCegarLoop]: 765 mSDtfsCounter, 390 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:30:03,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 1199 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:30:03,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2023-12-20 02:30:03,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 543. [2023-12-20 02:30:03,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 538 states have (on average 1.4814126394052045) internal successors, (797), 542 states have internal predecessors, (797), 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 02:30:03,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 797 transitions. [2023-12-20 02:30:03,538 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 797 transitions. Word has length 138 [2023-12-20 02:30:03,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:30:03,539 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 797 transitions. [2023-12-20 02:30:03,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 02:30:03,539 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 797 transitions. [2023-12-20 02:30:03,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-20 02:30:03,543 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:30:03,543 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:30:03,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 02:30:03,543 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:30:03,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:30:03,544 INFO L85 PathProgramCache]: Analyzing trace with hash -228007275, now seen corresponding path program 1 times [2023-12-20 02:30:03,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:30:03,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326795437] [2023-12-20 02:30:03,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:30:03,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:30:03,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:30:03,707 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 02:30:03,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:30:03,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326795437] [2023-12-20 02:30:03,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326795437] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:30:03,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:30:03,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:30:03,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30144620] [2023-12-20 02:30:03,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:30:03,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:30:03,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:30:03,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:30:03,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:30:03,710 INFO L87 Difference]: Start difference. First operand 543 states and 797 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 02:30:03,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:30:03,800 INFO L93 Difference]: Finished difference Result 1092 states and 1657 transitions. [2023-12-20 02:30:03,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:30:03,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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) Word has length 138 [2023-12-20 02:30:03,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:30:03,806 INFO L225 Difference]: With dead ends: 1092 [2023-12-20 02:30:03,806 INFO L226 Difference]: Without dead ends: 901 [2023-12-20 02:30:03,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 02:30:03,808 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 312 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:30:03,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 977 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:30:03,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2023-12-20 02:30:03,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 899. [2023-12-20 02:30:03,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 899 states, 894 states have (on average 1.5033557046979866) internal successors, (1344), 898 states have internal predecessors, (1344), 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 02:30:03,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1344 transitions. [2023-12-20 02:30:03,829 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1344 transitions. Word has length 138 [2023-12-20 02:30:03,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:30:03,830 INFO L495 AbstractCegarLoop]: Abstraction has 899 states and 1344 transitions. [2023-12-20 02:30:03,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 02:30:03,830 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1344 transitions. [2023-12-20 02:30:03,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-20 02:30:03,835 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:30:03,835 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:30:03,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 02:30:03,835 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:30:03,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:30:03,836 INFO L85 PathProgramCache]: Analyzing trace with hash -228438251, now seen corresponding path program 1 times [2023-12-20 02:30:03,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:30:03,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326859690] [2023-12-20 02:30:03,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:30:03,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:30:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:30:04,162 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 02:30:04,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:30:04,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326859690] [2023-12-20 02:30:04,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326859690] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:30:04,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:30:04,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:30:04,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581200768] [2023-12-20 02:30:04,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:30:04,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 02:30:04,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:30:04,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 02:30:04,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:30:04,168 INFO L87 Difference]: Start difference. First operand 899 states and 1344 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 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 02:30:04,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:30:04,233 INFO L93 Difference]: Finished difference Result 2633 states and 3925 transitions. [2023-12-20 02:30:04,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 02:30:04,234 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 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) Word has length 138 [2023-12-20 02:30:04,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:30:04,240 INFO L225 Difference]: With dead ends: 2633 [2023-12-20 02:30:04,241 INFO L226 Difference]: Without dead ends: 1742 [2023-12-20 02:30:04,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 02:30:04,249 INFO L413 NwaCegarLoop]: 937 mSDtfsCounter, 1071 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:30:04,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 1424 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:30:04,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2023-12-20 02:30:04,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1702. [2023-12-20 02:30:04,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1702 states, 1697 states have (on average 1.489098408956983) internal successors, (2527), 1701 states have internal predecessors, (2527), 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 02:30:04,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1702 states to 1702 states and 2527 transitions. [2023-12-20 02:30:04,288 INFO L78 Accepts]: Start accepts. Automaton has 1702 states and 2527 transitions. Word has length 138 [2023-12-20 02:30:04,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:30:04,288 INFO L495 AbstractCegarLoop]: Abstraction has 1702 states and 2527 transitions. [2023-12-20 02:30:04,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 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 02:30:04,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1702 states and 2527 transitions. [2023-12-20 02:30:04,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-20 02:30:04,297 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:30:04,297 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:30:04,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 02:30:04,297 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:30:04,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:30:04,298 INFO L85 PathProgramCache]: Analyzing trace with hash -802546345, now seen corresponding path program 1 times [2023-12-20 02:30:04,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:30:04,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783848293] [2023-12-20 02:30:04,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:30:04,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:30:04,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:30:04,355 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 02:30:04,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:30:04,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783848293] [2023-12-20 02:30:04,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783848293] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:30:04,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:30:04,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:30:04,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330675306] [2023-12-20 02:30:04,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:30:04,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:30:04,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:30:04,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:30:04,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:30:04,361 INFO L87 Difference]: Start difference. First operand 1702 states and 2527 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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 02:30:04,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:30:04,389 INFO L93 Difference]: Finished difference Result 5070 states and 7521 transitions. [2023-12-20 02:30:04,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:30:04,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) Word has length 139 [2023-12-20 02:30:04,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:30:04,417 INFO L225 Difference]: With dead ends: 5070 [2023-12-20 02:30:04,417 INFO L226 Difference]: Without dead ends: 3395 [2023-12-20 02:30:04,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 02:30:04,419 INFO L413 NwaCegarLoop]: 1058 mSDtfsCounter, 526 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 1585 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:30:04,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 1585 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:30:04,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3395 states. [2023-12-20 02:30:04,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3395 to 1704. [2023-12-20 02:30:04,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1704 states, 1699 states have (on average 1.4885226603884638) internal successors, (2529), 1703 states have internal predecessors, (2529), 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 02:30:04,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1704 states to 1704 states and 2529 transitions. [2023-12-20 02:30:04,453 INFO L78 Accepts]: Start accepts. Automaton has 1704 states and 2529 transitions. Word has length 139 [2023-12-20 02:30:04,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:30:04,454 INFO L495 AbstractCegarLoop]: Abstraction has 1704 states and 2529 transitions. [2023-12-20 02:30:04,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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 02:30:04,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1704 states and 2529 transitions. [2023-12-20 02:30:04,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-20 02:30:04,456 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:30:04,456 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:30:04,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 02:30:04,456 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:30:04,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:30:04,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1692246653, now seen corresponding path program 1 times [2023-12-20 02:30:04,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:30:04,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833525257] [2023-12-20 02:30:04,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:30:04,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:30:04,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:30:04,510 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 02:30:04,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:30:04,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833525257] [2023-12-20 02:30:04,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833525257] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:30:04,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:30:04,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:30:04,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641425395] [2023-12-20 02:30:04,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:30:04,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:30:04,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:30:04,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:30:04,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:30:04,512 INFO L87 Difference]: Start difference. First operand 1704 states and 2529 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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 02:30:04,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:30:04,559 INFO L93 Difference]: Finished difference Result 4482 states and 6648 transitions. [2023-12-20 02:30:04,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:30:04,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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) Word has length 140 [2023-12-20 02:30:04,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:30:04,568 INFO L225 Difference]: With dead ends: 4482 [2023-12-20 02:30:04,569 INFO L226 Difference]: Without dead ends: 2955 [2023-12-20 02:30:04,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 02:30:04,572 INFO L413 NwaCegarLoop]: 792 mSDtfsCounter, 465 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:30:04,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 1285 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:30:04,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2955 states. [2023-12-20 02:30:04,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2955 to 2915. [2023-12-20 02:30:04,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2915 states, 2910 states have (on average 1.4673539518900343) internal successors, (4270), 2914 states have internal predecessors, (4270), 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 02:30:04,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2915 states to 2915 states and 4270 transitions. [2023-12-20 02:30:04,621 INFO L78 Accepts]: Start accepts. Automaton has 2915 states and 4270 transitions. Word has length 140 [2023-12-20 02:30:04,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:30:04,621 INFO L495 AbstractCegarLoop]: Abstraction has 2915 states and 4270 transitions. [2023-12-20 02:30:04,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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 02:30:04,622 INFO L276 IsEmpty]: Start isEmpty. Operand 2915 states and 4270 transitions. [2023-12-20 02:30:04,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-20 02:30:04,625 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:30:04,625 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:30:04,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 02:30:04,625 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:30:04,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:30:04,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1587774842, now seen corresponding path program 1 times [2023-12-20 02:30:04,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:30:04,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242853645] [2023-12-20 02:30:04,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:30:04,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:30:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:30:04,887 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 02:30:04,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:30:04,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242853645] [2023-12-20 02:30:04,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242853645] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:30:04,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:30:04,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:30:04,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425177372] [2023-12-20 02:30:04,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:30:04,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:30:04,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:30:04,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:30:04,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:30:04,889 INFO L87 Difference]: Start difference. First operand 2915 states and 4270 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 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 02:30:04,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:30:04,974 INFO L93 Difference]: Finished difference Result 8364 states and 12233 transitions. [2023-12-20 02:30:04,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 02:30:04,978 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 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) Word has length 140 [2023-12-20 02:30:04,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:30:04,994 INFO L225 Difference]: With dead ends: 8364 [2023-12-20 02:30:04,994 INFO L226 Difference]: Without dead ends: 5462 [2023-12-20 02:30:04,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:30:05,002 INFO L413 NwaCegarLoop]: 880 mSDtfsCounter, 1607 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1607 SdHoareTripleChecker+Valid, 1359 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:30:05,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1607 Valid, 1359 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:30:05,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5462 states. [2023-12-20 02:30:05,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5462 to 5432. [2023-12-20 02:30:05,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5432 states, 5427 states have (on average 1.4505251520176894) internal successors, (7872), 5431 states have internal predecessors, (7872), 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 02:30:05,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 7872 transitions. [2023-12-20 02:30:05,104 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 7872 transitions. Word has length 140 [2023-12-20 02:30:05,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:30:05,105 INFO L495 AbstractCegarLoop]: Abstraction has 5432 states and 7872 transitions. [2023-12-20 02:30:05,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 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 02:30:05,105 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 7872 transitions. [2023-12-20 02:30:05,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-20 02:30:05,111 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:30:05,111 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:30:05,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 02:30:05,111 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:30:05,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:30:05,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1760745588, now seen corresponding path program 1 times [2023-12-20 02:30:05,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:30:05,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205563627] [2023-12-20 02:30:05,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:30:05,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:30:05,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:30:05,317 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 02:30:05,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:30:05,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205563627] [2023-12-20 02:30:05,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205563627] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:30:05,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:30:05,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:30:05,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113553360] [2023-12-20 02:30:05,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:30:05,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 02:30:05,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:30:05,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 02:30:05,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:30:05,319 INFO L87 Difference]: Start difference. First operand 5432 states and 7872 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 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 02:30:05,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:30:05,411 INFO L93 Difference]: Finished difference Result 15889 states and 22965 transitions. [2023-12-20 02:30:05,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 02:30:05,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 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) Word has length 140 [2023-12-20 02:30:05,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:30:05,450 INFO L225 Difference]: With dead ends: 15889 [2023-12-20 02:30:05,450 INFO L226 Difference]: Without dead ends: 10512 [2023-12-20 02:30:05,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 02:30:05,460 INFO L413 NwaCegarLoop]: 924 mSDtfsCounter, 1057 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 1415 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:30:05,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1057 Valid, 1415 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:30:05,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10512 states. [2023-12-20 02:30:05,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10512 to 10464. [2023-12-20 02:30:05,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10464 states, 10459 states have (on average 1.4335022468687255) internal successors, (14993), 10463 states have internal predecessors, (14993), 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 02:30:05,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10464 states to 10464 states and 14993 transitions. [2023-12-20 02:30:05,656 INFO L78 Accepts]: Start accepts. Automaton has 10464 states and 14993 transitions. Word has length 140 [2023-12-20 02:30:05,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:30:05,656 INFO L495 AbstractCegarLoop]: Abstraction has 10464 states and 14993 transitions. [2023-12-20 02:30:05,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 3 states have internal predecessors, (140), 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 02:30:05,656 INFO L276 IsEmpty]: Start isEmpty. Operand 10464 states and 14993 transitions. [2023-12-20 02:30:05,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-20 02:30:05,668 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:30:05,668 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:30:05,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 02:30:05,668 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:30:05,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:30:05,669 INFO L85 PathProgramCache]: Analyzing trace with hash 483683798, now seen corresponding path program 1 times [2023-12-20 02:30:05,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:30:05,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785660257] [2023-12-20 02:30:05,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:30:05,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:30:05,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:30:05,713 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 02:30:05,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:30:05,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785660257] [2023-12-20 02:30:05,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785660257] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:30:05,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:30:05,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:30:05,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506315559] [2023-12-20 02:30:05,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:30:05,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:30:05,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:30:05,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:30:05,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:30:05,715 INFO L87 Difference]: Start difference. First operand 10464 states and 14993 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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 02:30:05,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:30:05,859 INFO L93 Difference]: Finished difference Result 31242 states and 44748 transitions. [2023-12-20 02:30:05,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:30:05,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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) Word has length 141 [2023-12-20 02:30:05,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:30:05,892 INFO L225 Difference]: With dead ends: 31242 [2023-12-20 02:30:05,892 INFO L226 Difference]: Without dead ends: 20868 [2023-12-20 02:30:05,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 02:30:05,910 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 512 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:30:05,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 1134 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:30:05,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20868 states. [2023-12-20 02:30:06,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20868 to 10474. [2023-12-20 02:30:06,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10474 states, 10469 states have (on average 1.4330881650587448) internal successors, (15003), 10473 states have internal predecessors, (15003), 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 02:30:06,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10474 states to 10474 states and 15003 transitions. [2023-12-20 02:30:06,243 INFO L78 Accepts]: Start accepts. Automaton has 10474 states and 15003 transitions. Word has length 141 [2023-12-20 02:30:06,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:30:06,243 INFO L495 AbstractCegarLoop]: Abstraction has 10474 states and 15003 transitions. [2023-12-20 02:30:06,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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 02:30:06,243 INFO L276 IsEmpty]: Start isEmpty. Operand 10474 states and 15003 transitions. [2023-12-20 02:30:06,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-20 02:30:06,253 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:30:06,253 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:30:06,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 02:30:06,254 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:30:06,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:30:06,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1554550099, now seen corresponding path program 1 times [2023-12-20 02:30:06,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:30:06,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145395112] [2023-12-20 02:30:06,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:30:06,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:30:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:30:06,450 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 02:30:06,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:30:06,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145395112] [2023-12-20 02:30:06,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145395112] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:30:06,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:30:06,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:30:06,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889140635] [2023-12-20 02:30:06,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:30:06,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 02:30:06,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:30:06,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 02:30:06,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:30:06,452 INFO L87 Difference]: Start difference. First operand 10474 states and 15003 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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 02:30:06,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:30:06,651 INFO L93 Difference]: Finished difference Result 30542 states and 43658 transitions. [2023-12-20 02:30:06,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 02:30:06,652 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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) Word has length 142 [2023-12-20 02:30:06,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:30:06,681 INFO L225 Difference]: With dead ends: 30542 [2023-12-20 02:30:06,681 INFO L226 Difference]: Without dead ends: 20168 [2023-12-20 02:30:06,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 02:30:06,693 INFO L413 NwaCegarLoop]: 913 mSDtfsCounter, 1051 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 1404 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:30:06,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1051 Valid, 1404 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:30:06,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20168 states. [2023-12-20 02:30:07,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20168 to 20120. [2023-12-20 02:30:07,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20120 states, 20115 states have (on average 1.4158090976882922) internal successors, (28479), 20119 states have internal predecessors, (28479), 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 02:30:07,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20120 states to 20120 states and 28479 transitions. [2023-12-20 02:30:07,112 INFO L78 Accepts]: Start accepts. Automaton has 20120 states and 28479 transitions. Word has length 142 [2023-12-20 02:30:07,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:30:07,112 INFO L495 AbstractCegarLoop]: Abstraction has 20120 states and 28479 transitions. [2023-12-20 02:30:07,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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 02:30:07,112 INFO L276 IsEmpty]: Start isEmpty. Operand 20120 states and 28479 transitions. [2023-12-20 02:30:07,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-20 02:30:07,129 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:30:07,129 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:30:07,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 02:30:07,129 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:30:07,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:30:07,129 INFO L85 PathProgramCache]: Analyzing trace with hash 335245781, now seen corresponding path program 1 times [2023-12-20 02:30:07,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:30:07,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781985776] [2023-12-20 02:30:07,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:30:07,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:30:07,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:30:07,176 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 02:30:07,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:30:07,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781985776] [2023-12-20 02:30:07,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781985776] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:30:07,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:30:07,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:30:07,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665708663] [2023-12-20 02:30:07,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:30:07,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:30:07,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:30:07,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:30:07,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:30:07,177 INFO L87 Difference]: Start difference. First operand 20120 states and 28479 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 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 02:30:07,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:30:07,386 INFO L93 Difference]: Finished difference Result 59210 states and 83983 transitions. [2023-12-20 02:30:07,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:30:07,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 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) Word has length 143 [2023-12-20 02:30:07,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:30:07,452 INFO L225 Difference]: With dead ends: 59210 [2023-12-20 02:30:07,452 INFO L226 Difference]: Without dead ends: 39964 [2023-12-20 02:30:07,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 02:30:07,479 INFO L413 NwaCegarLoop]: 613 mSDtfsCounter, 498 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:30:07,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 1140 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:30:07,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39964 states. [2023-12-20 02:30:07,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39964 to 20140. [2023-12-20 02:30:07,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20140 states, 20135 states have (on average 1.4153960764837348) internal successors, (28499), 20139 states have internal predecessors, (28499), 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 02:30:07,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20140 states to 20140 states and 28499 transitions. [2023-12-20 02:30:07,995 INFO L78 Accepts]: Start accepts. Automaton has 20140 states and 28499 transitions. Word has length 143 [2023-12-20 02:30:07,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:30:07,995 INFO L495 AbstractCegarLoop]: Abstraction has 20140 states and 28499 transitions. [2023-12-20 02:30:07,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 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 02:30:07,996 INFO L276 IsEmpty]: Start isEmpty. Operand 20140 states and 28499 transitions. [2023-12-20 02:30:08,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-20 02:30:08,014 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:30:08,014 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:30:08,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 02:30:08,014 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:30:08,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:30:08,015 INFO L85 PathProgramCache]: Analyzing trace with hash -600560206, now seen corresponding path program 1 times [2023-12-20 02:30:08,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:30:08,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539313636] [2023-12-20 02:30:08,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:30:08,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:30:08,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:30:08,238 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 02:30:08,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:30:08,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539313636] [2023-12-20 02:30:08,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539313636] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:30:08,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:30:08,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:30:08,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015714176] [2023-12-20 02:30:08,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:30:08,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 02:30:08,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:30:08,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 02:30:08,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:30:08,239 INFO L87 Difference]: Start difference. First operand 20140 states and 28499 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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 02:30:08,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:30:08,324 INFO L93 Difference]: Finished difference Result 34310 states and 48612 transitions. [2023-12-20 02:30:08,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 02:30:08,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) Word has length 144 [2023-12-20 02:30:08,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:30:08,345 INFO L225 Difference]: With dead ends: 34310 [2023-12-20 02:30:08,346 INFO L226 Difference]: Without dead ends: 14689 [2023-12-20 02:30:08,361 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 02:30:08,362 INFO L413 NwaCegarLoop]: 577 mSDtfsCounter, 65 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:30:08,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1638 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:30:08,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14689 states. [2023-12-20 02:30:08,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14689 to 14689. [2023-12-20 02:30:08,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14689 states, 14684 states have (on average 1.4127621901389267) internal successors, (20745), 14688 states have internal predecessors, (20745), 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 02:30:08,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14689 states to 14689 states and 20745 transitions. [2023-12-20 02:30:08,602 INFO L78 Accepts]: Start accepts. Automaton has 14689 states and 20745 transitions. Word has length 144 [2023-12-20 02:30:08,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:30:08,602 INFO L495 AbstractCegarLoop]: Abstraction has 14689 states and 20745 transitions. [2023-12-20 02:30:08,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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 02:30:08,603 INFO L276 IsEmpty]: Start isEmpty. Operand 14689 states and 20745 transitions. [2023-12-20 02:30:08,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-20 02:30:08,615 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:30:08,615 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:30:08,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 02:30:08,615 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:30:08,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:30:08,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1587305715, now seen corresponding path program 1 times [2023-12-20 02:30:08,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:30:08,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530494828] [2023-12-20 02:30:08,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:30:08,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:30:08,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:30:08,672 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 02:30:08,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:30:08,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530494828] [2023-12-20 02:30:08,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530494828] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:30:08,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:30:08,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:30:08,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474315082] [2023-12-20 02:30:08,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:30:08,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:30:08,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:30:08,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:30:08,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:30:08,673 INFO L87 Difference]: Start difference. First operand 14689 states and 20745 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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 02:30:08,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:30:08,778 INFO L93 Difference]: Finished difference Result 39085 states and 55252 transitions. [2023-12-20 02:30:08,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:30:08,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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) Word has length 152 [2023-12-20 02:30:08,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:30:08,818 INFO L225 Difference]: With dead ends: 39085 [2023-12-20 02:30:08,818 INFO L226 Difference]: Without dead ends: 25521 [2023-12-20 02:30:08,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 02:30:08,834 INFO L413 NwaCegarLoop]: 873 mSDtfsCounter, 451 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 1355 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:30:08,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 1355 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:30:08,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25521 states. [2023-12-20 02:30:09,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25521 to 25495. [2023-12-20 02:30:09,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25495 states, 25490 states have (on average 1.3905060808160064) internal successors, (35444), 25494 states have internal predecessors, (35444), 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 02:30:09,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25495 states to 25495 states and 35444 transitions. [2023-12-20 02:30:09,210 INFO L78 Accepts]: Start accepts. Automaton has 25495 states and 35444 transitions. Word has length 152 [2023-12-20 02:30:09,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:30:09,210 INFO L495 AbstractCegarLoop]: Abstraction has 25495 states and 35444 transitions. [2023-12-20 02:30:09,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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 02:30:09,210 INFO L276 IsEmpty]: Start isEmpty. Operand 25495 states and 35444 transitions. [2023-12-20 02:30:09,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-20 02:30:09,232 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:30:09,232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:30:09,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 02:30:09,232 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:30:09,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:30:09,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1309382736, now seen corresponding path program 1 times [2023-12-20 02:30:09,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:30:09,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009227842] [2023-12-20 02:30:09,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:30:09,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:30:09,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:30:09,399 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 02:30:09,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:30:09,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009227842] [2023-12-20 02:30:09,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009227842] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:30:09,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:30:09,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:30:09,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774162664] [2023-12-20 02:30:09,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:30:09,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:30:09,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:30:09,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:30:09,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:30:09,402 INFO L87 Difference]: Start difference. First operand 25495 states and 35444 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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 02:30:09,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:30:09,725 INFO L93 Difference]: Finished difference Result 71549 states and 100138 transitions. [2023-12-20 02:30:09,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:30:09,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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) Word has length 152 [2023-12-20 02:30:09,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:30:09,812 INFO L225 Difference]: With dead ends: 71549 [2023-12-20 02:30:09,812 INFO L226 Difference]: Without dead ends: 49641 [2023-12-20 02:30:09,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 02:30:09,842 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 392 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:30:09,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 825 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:30:09,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49641 states. [2023-12-20 02:30:10,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49641 to 49577. [2023-12-20 02:30:10,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49577 states, 49572 states have (on average 1.3813039619139837) internal successors, (68474), 49576 states have internal predecessors, (68474), 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 02:30:10,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49577 states to 49577 states and 68474 transitions. [2023-12-20 02:30:10,620 INFO L78 Accepts]: Start accepts. Automaton has 49577 states and 68474 transitions. Word has length 152 [2023-12-20 02:30:10,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:30:10,620 INFO L495 AbstractCegarLoop]: Abstraction has 49577 states and 68474 transitions. [2023-12-20 02:30:10,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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 02:30:10,621 INFO L276 IsEmpty]: Start isEmpty. Operand 49577 states and 68474 transitions. [2023-12-20 02:30:10,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-20 02:30:10,653 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:30:10,653 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:30:10,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-20 02:30:10,653 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:30:10,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:30:10,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1148251723, now seen corresponding path program 1 times [2023-12-20 02:30:10,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:30:10,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304879649] [2023-12-20 02:30:10,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:30:10,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:30:10,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:30:11,481 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 02:30:11,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:30:11,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304879649] [2023-12-20 02:30:11,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304879649] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:30:11,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:30:11,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-20 02:30:11,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492805586] [2023-12-20 02:30:11,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:30:11,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 02:30:11,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:30:11,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 02:30:11,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-12-20 02:30:11,483 INFO L87 Difference]: Start difference. First operand 49577 states and 68474 transitions. Second operand has 13 states, 13 states have (on average 11.692307692307692) internal successors, (152), 13 states have internal predecessors, (152), 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 02:30:12,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:30:12,883 INFO L93 Difference]: Finished difference Result 124165 states and 178473 transitions. [2023-12-20 02:30:12,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-20 02:30:12,884 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 11.692307692307692) internal successors, (152), 13 states have internal predecessors, (152), 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) Word has length 152 [2023-12-20 02:30:12,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:30:13,051 INFO L225 Difference]: With dead ends: 124165 [2023-12-20 02:30:13,052 INFO L226 Difference]: Without dead ends: 107083 [2023-12-20 02:30:13,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=219, Invalid=651, Unknown=0, NotChecked=0, Total=870 [2023-12-20 02:30:13,092 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 6125 mSDsluCounter, 5050 mSDsCounter, 0 mSdLazyCounter, 1080 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6125 SdHoareTripleChecker+Valid, 5553 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:30:13,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6125 Valid, 5553 Invalid, 1201 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [121 Valid, 1080 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 02:30:13,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107083 states. [2023-12-20 02:30:14,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107083 to 55035. [2023-12-20 02:30:14,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55035 states, 55030 states have (on average 1.3628929674722878) internal successors, (75000), 55034 states have internal predecessors, (75000), 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 02:30:14,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55035 states to 55035 states and 75000 transitions. [2023-12-20 02:30:14,404 INFO L78 Accepts]: Start accepts. Automaton has 55035 states and 75000 transitions. Word has length 152 [2023-12-20 02:30:14,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:30:14,404 INFO L495 AbstractCegarLoop]: Abstraction has 55035 states and 75000 transitions. [2023-12-20 02:30:14,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.692307692307692) internal successors, (152), 13 states have internal predecessors, (152), 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 02:30:14,404 INFO L276 IsEmpty]: Start isEmpty. Operand 55035 states and 75000 transitions. [2023-12-20 02:30:14,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-20 02:30:14,437 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:30:14,437 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:30:14,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-20 02:30:14,437 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:30:14,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:30:14,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1453887389, now seen corresponding path program 1 times [2023-12-20 02:30:14,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:30:14,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159794151] [2023-12-20 02:30:14,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:30:14,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:30:14,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:30:14,601 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 02:30:14,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:30:14,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159794151] [2023-12-20 02:30:14,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159794151] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:30:14,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:30:14,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:30:14,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935479407] [2023-12-20 02:30:14,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:30:14,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 02:30:14,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:30:14,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 02:30:14,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:30:14,603 INFO L87 Difference]: Start difference. First operand 55035 states and 75000 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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 02:30:14,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:30:14,953 INFO L93 Difference]: Finished difference Result 91936 states and 125148 transitions. [2023-12-20 02:30:14,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 02:30:14,954 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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) Word has length 152 [2023-12-20 02:30:14,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:30:15,010 INFO L225 Difference]: With dead ends: 91936 [2023-12-20 02:30:15,010 INFO L226 Difference]: Without dead ends: 48914 [2023-12-20 02:30:15,040 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 02:30:15,041 INFO L413 NwaCegarLoop]: 569 mSDtfsCounter, 53 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 1627 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 02:30:15,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 1627 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:30:15,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48914 states. [2023-12-20 02:30:15,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48914 to 48914. [2023-12-20 02:30:15,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48914 states, 48909 states have (on average 1.3622441677400887) internal successors, (66626), 48913 states have internal predecessors, (66626), 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 02:30:15,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48914 states to 48914 states and 66626 transitions. [2023-12-20 02:30:15,776 INFO L78 Accepts]: Start accepts. Automaton has 48914 states and 66626 transitions. Word has length 152 [2023-12-20 02:30:15,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:30:15,776 INFO L495 AbstractCegarLoop]: Abstraction has 48914 states and 66626 transitions. [2023-12-20 02:30:15,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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 02:30:15,776 INFO L276 IsEmpty]: Start isEmpty. Operand 48914 states and 66626 transitions. [2023-12-20 02:30:15,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-20 02:30:15,958 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:30:15,958 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:30:15,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-20 02:30:15,959 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:30:15,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:30:15,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1096871536, now seen corresponding path program 1 times [2023-12-20 02:30:15,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:30:15,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152596459] [2023-12-20 02:30:15,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:30:15,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:30:15,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:30:16,209 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 02:30:16,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:30:16,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152596459] [2023-12-20 02:30:16,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152596459] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:30:16,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:30:16,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 02:30:16,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688308810] [2023-12-20 02:30:16,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:30:16,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:30:16,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:30:16,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:30:16,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:30:16,212 INFO L87 Difference]: Start difference. First operand 48914 states and 66626 transitions. Second operand has 8 states, 8 states have (on average 19.75) internal successors, (158), 8 states have internal predecessors, (158), 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 02:30:16,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:30:16,566 INFO L93 Difference]: Finished difference Result 66338 states and 94093 transitions. [2023-12-20 02:30:16,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 02:30:16,566 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.75) internal successors, (158), 8 states have internal predecessors, (158), 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) Word has length 158 [2023-12-20 02:30:16,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:30:16,618 INFO L225 Difference]: With dead ends: 66338 [2023-12-20 02:30:16,618 INFO L226 Difference]: Without dead ends: 48916 [2023-12-20 02:30:16,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:30:16,635 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 858 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:30:16,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [858 Valid, 1296 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:30:16,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48916 states. [2023-12-20 02:30:17,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48916 to 48914. [2023-12-20 02:30:17,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48914 states, 48909 states have (on average 1.3556809585147929) internal successors, (66305), 48913 states have internal predecessors, (66305), 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 02:30:17,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48914 states to 48914 states and 66305 transitions. [2023-12-20 02:30:17,244 INFO L78 Accepts]: Start accepts. Automaton has 48914 states and 66305 transitions. Word has length 158 [2023-12-20 02:30:17,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:30:17,244 INFO L495 AbstractCegarLoop]: Abstraction has 48914 states and 66305 transitions. [2023-12-20 02:30:17,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.75) internal successors, (158), 8 states have internal predecessors, (158), 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 02:30:17,245 INFO L276 IsEmpty]: Start isEmpty. Operand 48914 states and 66305 transitions. [2023-12-20 02:30:17,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-20 02:30:17,276 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:30:17,276 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:30:17,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-20 02:30:17,277 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:30:17,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:30:17,277 INFO L85 PathProgramCache]: Analyzing trace with hash -2048594912, now seen corresponding path program 1 times [2023-12-20 02:30:17,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:30:17,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166110542] [2023-12-20 02:30:17,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:30:17,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:30:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:30:17,656 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 02:30:17,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:30:17,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166110542] [2023-12-20 02:30:17,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166110542] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:30:17,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:30:17,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:30:17,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321991083] [2023-12-20 02:30:17,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:30:17,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 02:30:17,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:30:17,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 02:30:17,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:30:17,658 INFO L87 Difference]: Start difference. First operand 48914 states and 66305 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 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 02:30:17,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:30:17,834 INFO L93 Difference]: Finished difference Result 86464 states and 117047 transitions. [2023-12-20 02:30:17,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 02:30:17,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 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) Word has length 158 [2023-12-20 02:30:17,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:30:17,874 INFO L225 Difference]: With dead ends: 86464 [2023-12-20 02:30:17,874 INFO L226 Difference]: Without dead ends: 37607 [2023-12-20 02:30:17,905 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 02:30:17,906 INFO L413 NwaCegarLoop]: 561 mSDtfsCounter, 45 mSDsluCounter, 1053 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 1614 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:30:17,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 1614 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:30:17,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37607 states. [2023-12-20 02:30:18,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37607 to 37607. [2023-12-20 02:30:18,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37607 states, 37602 states have (on average 1.3513642891335567) internal successors, (50814), 37606 states have internal predecessors, (50814), 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 02:30:18,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37607 states to 37607 states and 50814 transitions. [2023-12-20 02:30:18,596 INFO L78 Accepts]: Start accepts. Automaton has 37607 states and 50814 transitions. Word has length 158 [2023-12-20 02:30:18,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:30:18,598 INFO L495 AbstractCegarLoop]: Abstraction has 37607 states and 50814 transitions. [2023-12-20 02:30:18,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 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 02:30:18,598 INFO L276 IsEmpty]: Start isEmpty. Operand 37607 states and 50814 transitions. [2023-12-20 02:30:18,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-20 02:30:18,617 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:30:18,617 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:30:18,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-20 02:30:18,617 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:30:18,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:30:18,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1637244739, now seen corresponding path program 1 times [2023-12-20 02:30:18,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:30:18,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723842298] [2023-12-20 02:30:18,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:30:18,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:30:18,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:30:18,806 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 02:30:18,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:30:18,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723842298] [2023-12-20 02:30:18,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723842298] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:30:18,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:30:18,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:30:18,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402568797] [2023-12-20 02:30:18,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:30:18,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:30:18,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:30:18,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:30:18,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:30:18,808 INFO L87 Difference]: Start difference. First operand 37607 states and 50814 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 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 02:30:18,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:30:18,980 INFO L93 Difference]: Finished difference Result 70899 states and 95727 transitions. [2023-12-20 02:30:18,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 02:30:18,981 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 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) Word has length 164 [2023-12-20 02:30:18,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:30:19,019 INFO L225 Difference]: With dead ends: 70899 [2023-12-20 02:30:19,020 INFO L226 Difference]: Without dead ends: 33656 [2023-12-20 02:30:19,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:30:19,047 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 1890 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1890 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:30:19,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1890 Valid, 1002 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:30:19,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33656 states. [2023-12-20 02:30:19,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33656 to 33528. [2023-12-20 02:30:19,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33528 states, 33523 states have (on average 1.3479998806789368) internal successors, (45189), 33527 states have internal predecessors, (45189), 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 02:30:19,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33528 states to 33528 states and 45189 transitions. [2023-12-20 02:30:19,632 INFO L78 Accepts]: Start accepts. Automaton has 33528 states and 45189 transitions. Word has length 164 [2023-12-20 02:30:19,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:30:19,633 INFO L495 AbstractCegarLoop]: Abstraction has 33528 states and 45189 transitions. [2023-12-20 02:30:19,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 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 02:30:19,633 INFO L276 IsEmpty]: Start isEmpty. Operand 33528 states and 45189 transitions. [2023-12-20 02:30:19,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-20 02:30:19,770 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:30:19,778 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:30:19,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-20 02:30:19,779 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:30:19,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:30:19,779 INFO L85 PathProgramCache]: Analyzing trace with hash 26922716, now seen corresponding path program 1 times [2023-12-20 02:30:19,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:30:19,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833399383] [2023-12-20 02:30:19,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:30:19,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:30:19,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:30:19,975 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 02:30:19,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:30:19,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833399383] [2023-12-20 02:30:19,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833399383] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:30:19,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:30:19,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:30:19,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484984635] [2023-12-20 02:30:19,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:30:19,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 02:30:19,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:30:19,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 02:30:19,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:30:19,977 INFO L87 Difference]: Start difference. First operand 33528 states and 45189 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 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 02:30:20,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:30:20,123 INFO L93 Difference]: Finished difference Result 43001 states and 59839 transitions. [2023-12-20 02:30:20,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 02:30:20,123 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 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) Word has length 166 [2023-12-20 02:30:20,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:30:20,156 INFO L225 Difference]: With dead ends: 43001 [2023-12-20 02:30:20,156 INFO L226 Difference]: Without dead ends: 30707 [2023-12-20 02:30:20,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:30:20,173 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 598 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:30:20,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 966 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:30:20,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30707 states. [2023-12-20 02:30:20,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30707 to 30705. [2023-12-20 02:30:20,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30705 states, 30700 states have (on average 1.3201954397394138) internal successors, (40530), 30704 states have internal predecessors, (40530), 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 02:30:20,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30705 states to 30705 states and 40530 transitions. [2023-12-20 02:30:20,616 INFO L78 Accepts]: Start accepts. Automaton has 30705 states and 40530 transitions. Word has length 166 [2023-12-20 02:30:20,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:30:20,616 INFO L495 AbstractCegarLoop]: Abstraction has 30705 states and 40530 transitions. [2023-12-20 02:30:20,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 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 02:30:20,617 INFO L276 IsEmpty]: Start isEmpty. Operand 30705 states and 40530 transitions. [2023-12-20 02:30:20,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-20 02:30:20,634 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:30:20,634 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:30:20,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-20 02:30:20,634 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:30:20,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:30:20,635 INFO L85 PathProgramCache]: Analyzing trace with hash 812625131, now seen corresponding path program 1 times [2023-12-20 02:30:20,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:30:20,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674523591] [2023-12-20 02:30:20,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:30:20,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:30:20,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:30:20,786 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 02:30:20,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:30:20,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674523591] [2023-12-20 02:30:20,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674523591] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:30:20,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:30:20,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:30:20,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691525313] [2023-12-20 02:30:20,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:30:20,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 02:30:20,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:30:20,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 02:30:20,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:30:20,787 INFO L87 Difference]: Start difference. First operand 30705 states and 40530 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 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 02:30:21,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:30:21,011 INFO L93 Difference]: Finished difference Result 61814 states and 81560 transitions. [2023-12-20 02:30:21,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 02:30:21,011 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 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) Word has length 166 [2023-12-20 02:30:21,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:30:21,046 INFO L225 Difference]: With dead ends: 61814 [2023-12-20 02:30:21,046 INFO L226 Difference]: Without dead ends: 31497 [2023-12-20 02:30:21,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 02:30:21,068 INFO L413 NwaCegarLoop]: 866 mSDtfsCounter, 1063 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 1338 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:30:21,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1063 Valid, 1338 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:30:21,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31497 states. [2023-12-20 02:30:21,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31497 to 31062. [2023-12-20 02:30:21,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31062 states, 31057 states have (on average 1.3180603406639404) internal successors, (40935), 31061 states have internal predecessors, (40935), 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 02:30:21,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31062 states to 31062 states and 40935 transitions. [2023-12-20 02:30:21,589 INFO L78 Accepts]: Start accepts. Automaton has 31062 states and 40935 transitions. Word has length 166 [2023-12-20 02:30:21,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:30:21,589 INFO L495 AbstractCegarLoop]: Abstraction has 31062 states and 40935 transitions. [2023-12-20 02:30:21,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 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 02:30:21,589 INFO L276 IsEmpty]: Start isEmpty. Operand 31062 states and 40935 transitions. [2023-12-20 02:30:21,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-20 02:30:21,609 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:30:21,609 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:30:21,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-20 02:30:21,610 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:30:21,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:30:21,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1147575470, now seen corresponding path program 1 times [2023-12-20 02:30:21,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:30:21,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279746885] [2023-12-20 02:30:21,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:30:21,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:30:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:30:21,667 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 02:30:21,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:30:21,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279746885] [2023-12-20 02:30:21,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279746885] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:30:21,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:30:21,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:30:21,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918183961] [2023-12-20 02:30:21,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:30:21,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:30:21,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:30:21,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:30:21,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:30:21,670 INFO L87 Difference]: Start difference. First operand 31062 states and 40935 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 02:30:21,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:30:21,970 INFO L93 Difference]: Finished difference Result 79146 states and 105785 transitions. [2023-12-20 02:30:21,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:30:21,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) Word has length 166 [2023-12-20 02:30:21,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:30:22,044 INFO L225 Difference]: With dead ends: 79146 [2023-12-20 02:30:22,045 INFO L226 Difference]: Without dead ends: 56505 [2023-12-20 02:30:22,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 02:30:22,075 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 407 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:30:22,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 931 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:30:22,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56505 states. [2023-12-20 02:30:22,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56505 to 56077. [2023-12-20 02:30:22,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56077 states, 56072 states have (on average 1.3182693679554858) internal successors, (73918), 56076 states have internal predecessors, (73918), 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 02:30:22,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56077 states to 56077 states and 73918 transitions. [2023-12-20 02:30:22,958 INFO L78 Accepts]: Start accepts. Automaton has 56077 states and 73918 transitions. Word has length 166 [2023-12-20 02:30:22,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:30:22,958 INFO L495 AbstractCegarLoop]: Abstraction has 56077 states and 73918 transitions. [2023-12-20 02:30:22,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 02:30:22,958 INFO L276 IsEmpty]: Start isEmpty. Operand 56077 states and 73918 transitions. [2023-12-20 02:30:22,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-20 02:30:22,991 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:30:22,991 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:30:22,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-20 02:30:22,991 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:30:22,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:30:22,991 INFO L85 PathProgramCache]: Analyzing trace with hash 2030159501, now seen corresponding path program 1 times [2023-12-20 02:30:22,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:30:22,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004731390] [2023-12-20 02:30:22,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:30:22,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:30:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:30:23,207 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 02:30:23,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:30:23,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004731390] [2023-12-20 02:30:23,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004731390] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:30:23,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:30:23,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 02:30:23,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607703015] [2023-12-20 02:30:23,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:30:23,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:30:23,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:30:23,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:30:23,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:30:23,208 INFO L87 Difference]: Start difference. First operand 56077 states and 73918 transitions. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 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 02:30:23,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:30:23,709 INFO L93 Difference]: Finished difference Result 98787 states and 133510 transitions. [2023-12-20 02:30:23,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 02:30:23,710 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 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) Word has length 166 [2023-12-20 02:30:23,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:30:23,796 INFO L225 Difference]: With dead ends: 98787 [2023-12-20 02:30:23,796 INFO L226 Difference]: Without dead ends: 78429 [2023-12-20 02:30:23,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:30:23,812 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 840 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:30:23,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 1217 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:30:23,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78429 states. [2023-12-20 02:30:24,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78429 to 78427. [2023-12-20 02:30:24,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78427 states, 78422 states have (on average 1.3030144602279972) internal successors, (102185), 78426 states have internal predecessors, (102185), 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 02:30:24,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78427 states to 78427 states and 102185 transitions. [2023-12-20 02:30:24,875 INFO L78 Accepts]: Start accepts. Automaton has 78427 states and 102185 transitions. Word has length 166 [2023-12-20 02:30:24,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:30:24,875 INFO L495 AbstractCegarLoop]: Abstraction has 78427 states and 102185 transitions. [2023-12-20 02:30:24,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 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 02:30:24,875 INFO L276 IsEmpty]: Start isEmpty. Operand 78427 states and 102185 transitions. [2023-12-20 02:30:24,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-20 02:30:24,935 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:30:24,935 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:30:24,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-20 02:30:24,935 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:30:24,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:30:24,936 INFO L85 PathProgramCache]: Analyzing trace with hash 498919830, now seen corresponding path program 1 times [2023-12-20 02:30:24,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:30:24,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863824660] [2023-12-20 02:30:24,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:30:24,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:30:24,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:30:25,180 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 02:30:25,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:30:25,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863824660] [2023-12-20 02:30:25,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863824660] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:30:25,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:30:25,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-20 02:30:25,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908266710] [2023-12-20 02:30:25,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:30:25,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 02:30:25,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:30:25,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 02:30:25,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-20 02:30:25,184 INFO L87 Difference]: Start difference. First operand 78427 states and 102185 transitions. Second operand has 10 states, 10 states have (on average 16.6) internal successors, (166), 9 states have internal predecessors, (166), 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 02:30:25,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:30:25,739 INFO L93 Difference]: Finished difference Result 103450 states and 135604 transitions. [2023-12-20 02:30:25,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:30:25,739 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.6) internal successors, (166), 9 states have internal predecessors, (166), 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) Word has length 166 [2023-12-20 02:30:25,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:30:25,790 INFO L225 Difference]: With dead ends: 103450 [2023-12-20 02:30:25,790 INFO L226 Difference]: Without dead ends: 43262 [2023-12-20 02:30:25,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-12-20 02:30:25,825 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 2384 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2384 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:30:25,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2384 Valid, 569 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:30:25,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43262 states. [2023-12-20 02:30:26,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43262 to 43262. [2023-12-20 02:30:26,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43262 states, 43257 states have (on average 1.2865201007929352) internal successors, (55651), 43261 states have internal predecessors, (55651), 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 02:30:26,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43262 states to 43262 states and 55651 transitions. [2023-12-20 02:30:26,434 INFO L78 Accepts]: Start accepts. Automaton has 43262 states and 55651 transitions. Word has length 166 [2023-12-20 02:30:26,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:30:26,434 INFO L495 AbstractCegarLoop]: Abstraction has 43262 states and 55651 transitions. [2023-12-20 02:30:26,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.6) internal successors, (166), 9 states have internal predecessors, (166), 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 02:30:26,434 INFO L276 IsEmpty]: Start isEmpty. Operand 43262 states and 55651 transitions. [2023-12-20 02:30:26,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-20 02:30:26,464 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:30:26,464 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:30:26,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-20 02:30:26,465 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:30:26,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:30:26,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1901070816, now seen corresponding path program 1 times [2023-12-20 02:30:26,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:30:26,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621150310] [2023-12-20 02:30:26,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:30:26,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:30:26,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:30:26,741 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 02:30:26,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:30:26,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621150310] [2023-12-20 02:30:26,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621150310] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:30:26,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:30:26,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:30:26,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027666942] [2023-12-20 02:30:26,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:30:26,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 02:30:26,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:30:26,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 02:30:26,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:30:26,743 INFO L87 Difference]: Start difference. First operand 43262 states and 55651 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 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 02:30:26,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:30:26,886 INFO L93 Difference]: Finished difference Result 62214 states and 79936 transitions. [2023-12-20 02:30:26,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 02:30:26,886 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 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) Word has length 166 [2023-12-20 02:30:26,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:30:26,926 INFO L225 Difference]: With dead ends: 62214 [2023-12-20 02:30:26,926 INFO L226 Difference]: Without dead ends: 37334 [2023-12-20 02:30:26,949 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 02:30:26,949 INFO L413 NwaCegarLoop]: 536 mSDtfsCounter, 21 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1566 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 02:30:26,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1566 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:30:26,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37334 states. [2023-12-20 02:30:27,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37334 to 37334. [2023-12-20 02:30:27,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37334 states, 37329 states have (on average 1.2865600471483296) internal successors, (48026), 37333 states have internal predecessors, (48026), 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 02:30:27,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37334 states to 37334 states and 48026 transitions. [2023-12-20 02:30:27,506 INFO L78 Accepts]: Start accepts. Automaton has 37334 states and 48026 transitions. Word has length 166 [2023-12-20 02:30:27,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:30:27,506 INFO L495 AbstractCegarLoop]: Abstraction has 37334 states and 48026 transitions. [2023-12-20 02:30:27,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 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 02:30:27,506 INFO L276 IsEmpty]: Start isEmpty. Operand 37334 states and 48026 transitions. [2023-12-20 02:30:27,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-20 02:30:27,535 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:30:27,535 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:30:27,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-20 02:30:27,536 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:30:27,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:30:27,537 INFO L85 PathProgramCache]: Analyzing trace with hash 948344565, now seen corresponding path program 1 times [2023-12-20 02:30:27,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:30:27,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663177430] [2023-12-20 02:30:27,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:30:27,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:30:27,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:30:27,595 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 02:30:27,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:30:27,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663177430] [2023-12-20 02:30:27,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663177430] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:30:27,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:30:27,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:30:27,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288794393] [2023-12-20 02:30:27,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:30:27,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:30:27,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:30:27,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:30:27,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:30:27,596 INFO L87 Difference]: Start difference. First operand 37334 states and 48026 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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 02:30:27,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:30:27,888 INFO L93 Difference]: Finished difference Result 91912 states and 119740 transitions. [2023-12-20 02:30:27,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:30:27,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) Word has length 168 [2023-12-20 02:30:27,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:30:27,967 INFO L225 Difference]: With dead ends: 91912 [2023-12-20 02:30:27,967 INFO L226 Difference]: Without dead ends: 66698 [2023-12-20 02:30:28,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 02:30:28,184 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 334 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:30:28,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 964 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:30:28,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66698 states. [2023-12-20 02:30:28,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66698 to 65815. [2023-12-20 02:30:28,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65815 states, 65810 states have (on average 1.2838626348579243) internal successors, (84491), 65814 states have internal predecessors, (84491), 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 02:30:28,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65815 states to 65815 states and 84491 transitions. [2023-12-20 02:30:28,975 INFO L78 Accepts]: Start accepts. Automaton has 65815 states and 84491 transitions. Word has length 168 [2023-12-20 02:30:28,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:30:28,975 INFO L495 AbstractCegarLoop]: Abstraction has 65815 states and 84491 transitions. [2023-12-20 02:30:28,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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 02:30:28,975 INFO L276 IsEmpty]: Start isEmpty. Operand 65815 states and 84491 transitions. [2023-12-20 02:30:29,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-20 02:30:29,013 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:30:29,013 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:30:29,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-20 02:30:29,014 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:30:29,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:30:29,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1612624048, now seen corresponding path program 1 times [2023-12-20 02:30:29,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:30:29,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302556207] [2023-12-20 02:30:29,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:30:29,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:30:29,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:30:29,808 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 02:30:29,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:30:29,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302556207] [2023-12-20 02:30:29,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302556207] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:30:29,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:30:29,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-20 02:30:29,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398792765] [2023-12-20 02:30:29,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:30:29,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-20 02:30:29,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:30:29,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-20 02:30:29,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-12-20 02:30:29,810 INFO L87 Difference]: Start difference. First operand 65815 states and 84491 transitions. Second operand has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 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 02:30:31,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:30:31,315 INFO L93 Difference]: Finished difference Result 138259 states and 181864 transitions. [2023-12-20 02:30:31,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-20 02:30:31,316 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 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) Word has length 168 [2023-12-20 02:30:31,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:30:31,481 INFO L225 Difference]: With dead ends: 138259 [2023-12-20 02:30:31,481 INFO L226 Difference]: Without dead ends: 125638 [2023-12-20 02:30:31,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=303, Invalid=819, Unknown=0, NotChecked=0, Total=1122 [2023-12-20 02:30:31,524 INFO L413 NwaCegarLoop]: 935 mSDtfsCounter, 6066 mSDsluCounter, 7695 mSDsCounter, 0 mSdLazyCounter, 1681 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6066 SdHoareTripleChecker+Valid, 8630 SdHoareTripleChecker+Invalid, 1743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:30:31,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6066 Valid, 8630 Invalid, 1743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1681 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 02:30:31,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125638 states. [2023-12-20 02:30:32,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125638 to 78213. [2023-12-20 02:30:32,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78213 states, 78208 states have (on average 1.260548792962357) internal successors, (98585), 78212 states have internal predecessors, (98585), 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 02:30:32,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78213 states to 78213 states and 98585 transitions. [2023-12-20 02:30:32,961 INFO L78 Accepts]: Start accepts. Automaton has 78213 states and 98585 transitions. Word has length 168 [2023-12-20 02:30:32,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:30:32,961 INFO L495 AbstractCegarLoop]: Abstraction has 78213 states and 98585 transitions. [2023-12-20 02:30:32,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 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 02:30:32,961 INFO L276 IsEmpty]: Start isEmpty. Operand 78213 states and 98585 transitions. [2023-12-20 02:30:33,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-20 02:30:33,031 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:30:33,031 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:30:33,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-20 02:30:33,031 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:30:33,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:30:33,032 INFO L85 PathProgramCache]: Analyzing trace with hash -707025626, now seen corresponding path program 1 times [2023-12-20 02:30:33,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:30:33,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053869700] [2023-12-20 02:30:33,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:30:33,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:30:33,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:30:33,735 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 02:30:33,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:30:33,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053869700] [2023-12-20 02:30:33,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053869700] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:30:33,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:30:33,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-20 02:30:33,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551746449] [2023-12-20 02:30:33,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:30:33,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-20 02:30:33,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:30:33,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-20 02:30:33,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-12-20 02:30:33,737 INFO L87 Difference]: Start difference. First operand 78213 states and 98585 transitions. Second operand has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 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 02:30:35,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:30:35,436 INFO L93 Difference]: Finished difference Result 124964 states and 162410 transitions. [2023-12-20 02:30:35,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-20 02:30:35,437 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 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) Word has length 168 [2023-12-20 02:30:35,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:30:35,577 INFO L225 Difference]: With dead ends: 124964 [2023-12-20 02:30:35,578 INFO L226 Difference]: Without dead ends: 114758 [2023-12-20 02:30:35,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=353, Invalid=979, Unknown=0, NotChecked=0, Total=1332 [2023-12-20 02:30:35,607 INFO L413 NwaCegarLoop]: 1012 mSDtfsCounter, 4199 mSDsluCounter, 7797 mSDsCounter, 0 mSdLazyCounter, 2039 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4199 SdHoareTripleChecker+Valid, 8809 SdHoareTripleChecker+Invalid, 2127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 2039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:30:35,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4199 Valid, 8809 Invalid, 2127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 2039 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 02:30:35,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114758 states. [2023-12-20 02:30:36,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114758 to 89735. [2023-12-20 02:30:36,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89735 states, 89730 states have (on average 1.2476875069653404) internal successors, (111955), 89734 states have internal predecessors, (111955), 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 02:30:36,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89735 states to 89735 states and 111955 transitions. [2023-12-20 02:30:36,987 INFO L78 Accepts]: Start accepts. Automaton has 89735 states and 111955 transitions. Word has length 168 [2023-12-20 02:30:36,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:30:36,987 INFO L495 AbstractCegarLoop]: Abstraction has 89735 states and 111955 transitions. [2023-12-20 02:30:36,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 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 02:30:36,987 INFO L276 IsEmpty]: Start isEmpty. Operand 89735 states and 111955 transitions. [2023-12-20 02:30:37,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-20 02:30:37,276 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:30:37,276 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:30:37,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-20 02:30:37,276 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:30:37,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:30:37,277 INFO L85 PathProgramCache]: Analyzing trace with hash -64218961, now seen corresponding path program 1 times [2023-12-20 02:30:37,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:30:37,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244271439] [2023-12-20 02:30:37,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:30:37,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:30:37,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:30:37,810 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 02:30:37,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:30:37,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244271439] [2023-12-20 02:30:37,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244271439] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:30:37,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:30:37,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-20 02:30:37,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664771132] [2023-12-20 02:30:37,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:30:37,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-20 02:30:37,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:30:37,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-20 02:30:37,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2023-12-20 02:30:37,812 INFO L87 Difference]: Start difference. First operand 89735 states and 111955 transitions. Second operand has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 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 02:30:39,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:30:39,652 INFO L93 Difference]: Finished difference Result 197041 states and 258459 transitions. [2023-12-20 02:30:39,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-20 02:30:39,652 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 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) Word has length 168 [2023-12-20 02:30:39,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:30:40,078 INFO L225 Difference]: With dead ends: 197041 [2023-12-20 02:30:40,079 INFO L226 Difference]: Without dead ends: 187314 [2023-12-20 02:30:40,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2023-12-20 02:30:40,118 INFO L413 NwaCegarLoop]: 789 mSDtfsCounter, 7713 mSDsluCounter, 7308 mSDsCounter, 0 mSdLazyCounter, 1904 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7713 SdHoareTripleChecker+Valid, 8097 SdHoareTripleChecker+Invalid, 2029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 02:30:40,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7713 Valid, 8097 Invalid, 2029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1904 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 02:30:40,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187314 states. [2023-12-20 02:30:41,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187314 to 108344. [2023-12-20 02:30:41,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108344 states, 108339 states have (on average 1.2346061898300704) internal successors, (133756), 108343 states have internal predecessors, (133756), 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 02:30:42,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108344 states to 108344 states and 133756 transitions. [2023-12-20 02:30:42,333 INFO L78 Accepts]: Start accepts. Automaton has 108344 states and 133756 transitions. Word has length 168 [2023-12-20 02:30:42,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:30:42,333 INFO L495 AbstractCegarLoop]: Abstraction has 108344 states and 133756 transitions. [2023-12-20 02:30:42,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 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 02:30:42,333 INFO L276 IsEmpty]: Start isEmpty. Operand 108344 states and 133756 transitions. [2023-12-20 02:30:42,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-20 02:30:42,420 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:30:42,420 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:30:42,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-20 02:30:42,420 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:30:42,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:30:42,421 INFO L85 PathProgramCache]: Analyzing trace with hash -414146209, now seen corresponding path program 1 times [2023-12-20 02:30:42,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:30:42,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667745083] [2023-12-20 02:30:42,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:30:42,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:30:42,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:30:43,746 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 02:30:43,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:30:43,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667745083] [2023-12-20 02:30:43,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667745083] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:30:43,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:30:43,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-20 02:30:43,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151992204] [2023-12-20 02:30:43,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:30:43,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-20 02:30:43,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:30:43,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-20 02:30:43,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2023-12-20 02:30:43,749 INFO L87 Difference]: Start difference. First operand 108344 states and 133756 transitions. Second operand has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 22 states have internal predecessors, (168), 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 02:30:48,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:30:48,283 INFO L93 Difference]: Finished difference Result 148752 states and 186045 transitions. [2023-12-20 02:30:48,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-12-20 02:30:48,284 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 22 states have internal predecessors, (168), 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) Word has length 168 [2023-12-20 02:30:48,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:30:48,459 INFO L225 Difference]: With dead ends: 148752 [2023-12-20 02:30:48,459 INFO L226 Difference]: Without dead ends: 143802 [2023-12-20 02:30:48,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=556, Invalid=2524, Unknown=0, NotChecked=0, Total=3080 [2023-12-20 02:30:48,495 INFO L413 NwaCegarLoop]: 800 mSDtfsCounter, 4846 mSDsluCounter, 11571 mSDsCounter, 0 mSdLazyCounter, 4155 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4846 SdHoareTripleChecker+Valid, 12371 SdHoareTripleChecker+Invalid, 4215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 4155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:30:48,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4846 Valid, 12371 Invalid, 4215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 4155 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-20 02:30:48,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143802 states. [2023-12-20 02:30:50,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143802 to 112976. [2023-12-20 02:30:50,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112976 states, 112971 states have (on average 1.2319621849855273) internal successors, (139176), 112975 states have internal predecessors, (139176), 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 02:30:50,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112976 states to 112976 states and 139176 transitions. [2023-12-20 02:30:50,350 INFO L78 Accepts]: Start accepts. Automaton has 112976 states and 139176 transitions. Word has length 168 [2023-12-20 02:30:50,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:30:50,351 INFO L495 AbstractCegarLoop]: Abstraction has 112976 states and 139176 transitions. [2023-12-20 02:30:50,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 22 states have internal predecessors, (168), 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 02:30:50,351 INFO L276 IsEmpty]: Start isEmpty. Operand 112976 states and 139176 transitions. [2023-12-20 02:30:50,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-20 02:30:50,440 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:30:50,440 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:30:50,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-20 02:30:50,441 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:30:50,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:30:50,441 INFO L85 PathProgramCache]: Analyzing trace with hash 2102488286, now seen corresponding path program 1 times [2023-12-20 02:30:50,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:30:50,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189936251] [2023-12-20 02:30:50,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:30:50,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:30:50,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:30:50,644 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 02:30:50,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:30:50,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189936251] [2023-12-20 02:30:50,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189936251] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:30:50,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:30:50,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-20 02:30:50,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640982811] [2023-12-20 02:30:50,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:30:50,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 02:30:50,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:30:50,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 02:30:50,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-20 02:30:50,645 INFO L87 Difference]: Start difference. First operand 112976 states and 139176 transitions. Second operand has 10 states, 10 states have (on average 16.8) internal successors, (168), 9 states have internal predecessors, (168), 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 02:30:51,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:30:51,449 INFO L93 Difference]: Finished difference Result 175993 states and 219018 transitions. [2023-12-20 02:30:51,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:30:51,450 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.8) internal successors, (168), 9 states have internal predecessors, (168), 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) Word has length 168 [2023-12-20 02:30:51,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:30:51,540 INFO L225 Difference]: With dead ends: 175993 [2023-12-20 02:30:51,541 INFO L226 Difference]: Without dead ends: 80305 [2023-12-20 02:30:51,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-12-20 02:30:51,597 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 2333 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2333 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:30:51,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2333 Valid, 559 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:30:51,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80305 states. [2023-12-20 02:30:52,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80305 to 72103. [2023-12-20 02:30:52,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72103 states, 72098 states have (on average 1.213736858165275) internal successors, (87508), 72102 states have internal predecessors, (87508), 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 02:30:52,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72103 states to 72103 states and 87508 transitions. [2023-12-20 02:30:52,729 INFO L78 Accepts]: Start accepts. Automaton has 72103 states and 87508 transitions. Word has length 168 [2023-12-20 02:30:52,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:30:52,730 INFO L495 AbstractCegarLoop]: Abstraction has 72103 states and 87508 transitions. [2023-12-20 02:30:52,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.8) internal successors, (168), 9 states have internal predecessors, (168), 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 02:30:52,730 INFO L276 IsEmpty]: Start isEmpty. Operand 72103 states and 87508 transitions. [2023-12-20 02:30:52,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-20 02:30:52,798 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:30:52,798 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:30:52,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-20 02:30:52,798 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:30:52,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:30:52,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1528199527, now seen corresponding path program 1 times [2023-12-20 02:30:52,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:30:52,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739206471] [2023-12-20 02:30:52,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:30:52,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:30:52,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:30:54,274 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 02:30:54,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:30:54,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739206471] [2023-12-20 02:30:54,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739206471] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:30:54,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:30:54,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-20 02:30:54,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706279634] [2023-12-20 02:30:54,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:30:54,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-20 02:30:54,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:30:54,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-20 02:30:54,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2023-12-20 02:30:54,276 INFO L87 Difference]: Start difference. First operand 72103 states and 87508 transitions. Second operand has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 22 states have internal predecessors, (168), 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 02:30:59,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:30:59,937 INFO L93 Difference]: Finished difference Result 109625 states and 139030 transitions. [2023-12-20 02:30:59,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-12-20 02:30:59,937 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 22 states have internal predecessors, (168), 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) Word has length 168 [2023-12-20 02:30:59,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:31:00,067 INFO L225 Difference]: With dead ends: 109625 [2023-12-20 02:31:00,067 INFO L226 Difference]: Without dead ends: 106986 [2023-12-20 02:31:00,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1018 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=787, Invalid=3503, Unknown=0, NotChecked=0, Total=4290 [2023-12-20 02:31:00,092 INFO L413 NwaCegarLoop]: 1041 mSDtfsCounter, 8294 mSDsluCounter, 15372 mSDsCounter, 0 mSdLazyCounter, 5791 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8294 SdHoareTripleChecker+Valid, 16413 SdHoareTripleChecker+Invalid, 5994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 5791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:31:00,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8294 Valid, 16413 Invalid, 5994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 5791 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-20 02:31:00,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106986 states. [2023-12-20 02:31:01,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106986 to 74577. [2023-12-20 02:31:01,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74577 states, 74572 states have (on average 1.2115539344526096) internal successors, (90348), 74576 states have internal predecessors, (90348), 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 02:31:01,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74577 states to 74577 states and 90348 transitions. [2023-12-20 02:31:01,189 INFO L78 Accepts]: Start accepts. Automaton has 74577 states and 90348 transitions. Word has length 168 [2023-12-20 02:31:01,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:31:01,189 INFO L495 AbstractCegarLoop]: Abstraction has 74577 states and 90348 transitions. [2023-12-20 02:31:01,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 22 states have internal predecessors, (168), 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 02:31:01,189 INFO L276 IsEmpty]: Start isEmpty. Operand 74577 states and 90348 transitions. [2023-12-20 02:31:01,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-20 02:31:01,255 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:31:01,256 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:31:01,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-20 02:31:01,256 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:31:01,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:31:01,256 INFO L85 PathProgramCache]: Analyzing trace with hash 660214958, now seen corresponding path program 1 times [2023-12-20 02:31:01,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:31:01,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19755077] [2023-12-20 02:31:01,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:31:01,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:31:01,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:31:02,927 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 02:31:02,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:31:02,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19755077] [2023-12-20 02:31:02,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19755077] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:31:02,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:31:02,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-20 02:31:02,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338452793] [2023-12-20 02:31:02,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:31:02,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-20 02:31:02,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:31:02,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-20 02:31:02,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2023-12-20 02:31:02,928 INFO L87 Difference]: Start difference. First operand 74577 states and 90348 transitions. Second operand has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 22 states have internal predecessors, (168), 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 02:31:10,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:31:10,474 INFO L93 Difference]: Finished difference Result 116211 states and 147209 transitions. [2023-12-20 02:31:10,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-12-20 02:31:10,474 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 22 states have internal predecessors, (168), 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) Word has length 168 [2023-12-20 02:31:10,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:31:10,608 INFO L225 Difference]: With dead ends: 116211 [2023-12-20 02:31:10,608 INFO L226 Difference]: Without dead ends: 111829 [2023-12-20 02:31:10,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1209 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1255, Invalid=4295, Unknown=0, NotChecked=0, Total=5550 [2023-12-20 02:31:10,632 INFO L413 NwaCegarLoop]: 1279 mSDtfsCounter, 6615 mSDsluCounter, 16368 mSDsCounter, 0 mSdLazyCounter, 6687 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6615 SdHoareTripleChecker+Valid, 17647 SdHoareTripleChecker+Invalid, 6854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 6687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-20 02:31:10,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6615 Valid, 17647 Invalid, 6854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 6687 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-20 02:31:10,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111829 states. [2023-12-20 02:31:11,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111829 to 76901. [2023-12-20 02:31:11,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76901 states, 76896 states have (on average 1.2078781731169372) internal successors, (92881), 76900 states have internal predecessors, (92881), 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 02:31:11,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76901 states to 76901 states and 92881 transitions. [2023-12-20 02:31:11,813 INFO L78 Accepts]: Start accepts. Automaton has 76901 states and 92881 transitions. Word has length 168 [2023-12-20 02:31:11,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:31:11,813 INFO L495 AbstractCegarLoop]: Abstraction has 76901 states and 92881 transitions. [2023-12-20 02:31:11,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 22 states have internal predecessors, (168), 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 02:31:11,813 INFO L276 IsEmpty]: Start isEmpty. Operand 76901 states and 92881 transitions. [2023-12-20 02:31:11,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-20 02:31:11,878 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:31:11,878 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:31:11,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-20 02:31:11,878 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:31:11,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:31:11,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1380597043, now seen corresponding path program 1 times [2023-12-20 02:31:11,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:31:11,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376866052] [2023-12-20 02:31:11,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:31:11,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:31:11,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:31:13,215 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 02:31:13,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:31:13,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376866052] [2023-12-20 02:31:13,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376866052] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:31:13,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:31:13,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-20 02:31:13,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039152314] [2023-12-20 02:31:13,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:31:13,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-20 02:31:13,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:31:13,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-20 02:31:13,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2023-12-20 02:31:13,217 INFO L87 Difference]: Start difference. First operand 76901 states and 92881 transitions. Second operand has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 22 states have internal predecessors, (168), 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 02:31:17,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:31:17,942 INFO L93 Difference]: Finished difference Result 89340 states and 107711 transitions. [2023-12-20 02:31:17,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-20 02:31:17,942 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 22 states have internal predecessors, (168), 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) Word has length 168 [2023-12-20 02:31:17,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:31:18,030 INFO L225 Difference]: With dead ends: 89340 [2023-12-20 02:31:18,030 INFO L226 Difference]: Without dead ends: 88056 [2023-12-20 02:31:18,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=646, Invalid=2006, Unknown=0, NotChecked=0, Total=2652 [2023-12-20 02:31:18,044 INFO L413 NwaCegarLoop]: 703 mSDtfsCounter, 2898 mSDsluCounter, 9550 mSDsCounter, 0 mSdLazyCounter, 3541 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2898 SdHoareTripleChecker+Valid, 10253 SdHoareTripleChecker+Invalid, 3572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 3541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-20 02:31:18,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2898 Valid, 10253 Invalid, 3572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 3541 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-20 02:31:18,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88056 states. [2023-12-20 02:31:18,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88056 to 78844. [2023-12-20 02:31:18,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78844 states, 78839 states have (on average 1.2068392546835958) internal successors, (95146), 78843 states have internal predecessors, (95146), 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 02:31:19,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78844 states to 78844 states and 95146 transitions. [2023-12-20 02:31:19,218 INFO L78 Accepts]: Start accepts. Automaton has 78844 states and 95146 transitions. Word has length 168 [2023-12-20 02:31:19,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:31:19,219 INFO L495 AbstractCegarLoop]: Abstraction has 78844 states and 95146 transitions. [2023-12-20 02:31:19,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 22 states have internal predecessors, (168), 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 02:31:19,219 INFO L276 IsEmpty]: Start isEmpty. Operand 78844 states and 95146 transitions. [2023-12-20 02:31:19,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-20 02:31:19,287 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:31:19,287 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:31:19,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-20 02:31:19,287 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:31:19,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:31:19,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1637823672, now seen corresponding path program 1 times [2023-12-20 02:31:19,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:31:19,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107361011] [2023-12-20 02:31:19,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:31:19,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:31:19,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:31:19,475 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 02:31:19,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:31:19,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107361011] [2023-12-20 02:31:19,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107361011] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:31:19,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:31:19,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-20 02:31:19,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945746404] [2023-12-20 02:31:19,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:31:19,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 02:31:19,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:31:19,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 02:31:19,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-20 02:31:19,477 INFO L87 Difference]: Start difference. First operand 78844 states and 95146 transitions. Second operand has 10 states, 10 states have (on average 16.8) internal successors, (168), 9 states have internal predecessors, (168), 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 02:31:20,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:31:20,025 INFO L93 Difference]: Finished difference Result 120767 states and 147305 transitions. [2023-12-20 02:31:20,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:31:20,026 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.8) internal successors, (168), 9 states have internal predecessors, (168), 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) Word has length 168 [2023-12-20 02:31:20,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:31:20,090 INFO L225 Difference]: With dead ends: 120767 [2023-12-20 02:31:20,090 INFO L226 Difference]: Without dead ends: 59269 [2023-12-20 02:31:20,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-12-20 02:31:20,108 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 1462 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1462 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:31:20,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1462 Valid, 606 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:31:20,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59269 states. [2023-12-20 02:31:20,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59269 to 52859. [2023-12-20 02:31:20,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52859 states, 52854 states have (on average 1.1901842812275325) internal successors, (62906), 52858 states have internal predecessors, (62906), 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 02:31:20,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52859 states to 52859 states and 62906 transitions. [2023-12-20 02:31:20,787 INFO L78 Accepts]: Start accepts. Automaton has 52859 states and 62906 transitions. Word has length 168 [2023-12-20 02:31:20,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:31:20,788 INFO L495 AbstractCegarLoop]: Abstraction has 52859 states and 62906 transitions. [2023-12-20 02:31:20,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.8) internal successors, (168), 9 states have internal predecessors, (168), 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 02:31:20,788 INFO L276 IsEmpty]: Start isEmpty. Operand 52859 states and 62906 transitions. [2023-12-20 02:31:20,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-20 02:31:20,826 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:31:20,827 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:31:20,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-20 02:31:20,827 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:31:20,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:31:20,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1196505313, now seen corresponding path program 1 times [2023-12-20 02:31:20,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:31:20,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071458439] [2023-12-20 02:31:20,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:31:20,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:31:20,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:31:22,076 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 02:31:22,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:31:22,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071458439] [2023-12-20 02:31:22,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071458439] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:31:22,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:31:22,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-20 02:31:22,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477178617] [2023-12-20 02:31:22,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:31:22,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-20 02:31:22,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:31:22,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-20 02:31:22,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506 [2023-12-20 02:31:22,078 INFO L87 Difference]: Start difference. First operand 52859 states and 62906 transitions. Second operand has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 22 states have internal predecessors, (168), 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 02:31:28,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:31:28,313 INFO L93 Difference]: Finished difference Result 86850 states and 107270 transitions. [2023-12-20 02:31:28,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-12-20 02:31:28,313 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 22 states have internal predecessors, (168), 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) Word has length 168 [2023-12-20 02:31:28,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:31:28,390 INFO L225 Difference]: With dead ends: 86850 [2023-12-20 02:31:28,390 INFO L226 Difference]: Without dead ends: 85618 [2023-12-20 02:31:28,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=768, Invalid=2312, Unknown=0, NotChecked=0, Total=3080 [2023-12-20 02:31:28,401 INFO L413 NwaCegarLoop]: 1281 mSDtfsCounter, 5314 mSDsluCounter, 15717 mSDsCounter, 0 mSdLazyCounter, 6203 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5314 SdHoareTripleChecker+Valid, 16998 SdHoareTripleChecker+Invalid, 6272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 6203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:31:28,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5314 Valid, 16998 Invalid, 6272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 6203 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-20 02:31:28,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85618 states. [2023-12-20 02:31:29,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85618 to 55767. [2023-12-20 02:31:29,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55767 states, 55762 states have (on average 1.189250744234425) internal successors, (66315), 55766 states have internal predecessors, (66315), 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 02:31:29,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55767 states to 55767 states and 66315 transitions. [2023-12-20 02:31:29,205 INFO L78 Accepts]: Start accepts. Automaton has 55767 states and 66315 transitions. Word has length 168 [2023-12-20 02:31:29,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:31:29,205 INFO L495 AbstractCegarLoop]: Abstraction has 55767 states and 66315 transitions. [2023-12-20 02:31:29,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.304347826086956) internal successors, (168), 22 states have internal predecessors, (168), 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 02:31:29,206 INFO L276 IsEmpty]: Start isEmpty. Operand 55767 states and 66315 transitions. [2023-12-20 02:31:29,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-20 02:31:29,259 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:31:29,259 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:31:29,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-20 02:31:29,259 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:31:29,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:31:29,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1074529962, now seen corresponding path program 1 times [2023-12-20 02:31:29,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:31:29,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876946069] [2023-12-20 02:31:29,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:31:29,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:31:29,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:31:30,636 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 02:31:30,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:31:30,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876946069] [2023-12-20 02:31:30,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876946069] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:31:30,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:31:30,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-20 02:31:30,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621650479] [2023-12-20 02:31:30,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:31:30,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-20 02:31:30,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:31:30,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-20 02:31:30,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2023-12-20 02:31:30,638 INFO L87 Difference]: Start difference. First operand 55767 states and 66315 transitions. Second operand has 21 states, 21 states have (on average 8.0) internal successors, (168), 20 states have internal predecessors, (168), 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 02:31:38,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:31:38,151 INFO L93 Difference]: Finished difference Result 94940 states and 116681 transitions. [2023-12-20 02:31:38,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-12-20 02:31:38,151 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 8.0) internal successors, (168), 20 states have internal predecessors, (168), 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) Word has length 168 [2023-12-20 02:31:38,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:31:38,231 INFO L225 Difference]: With dead ends: 94940 [2023-12-20 02:31:38,231 INFO L226 Difference]: Without dead ends: 92520 [2023-12-20 02:31:38,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1235 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1062, Invalid=4050, Unknown=0, NotChecked=0, Total=5112 [2023-12-20 02:31:38,245 INFO L413 NwaCegarLoop]: 1254 mSDtfsCounter, 5798 mSDsluCounter, 16939 mSDsCounter, 0 mSdLazyCounter, 6071 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5798 SdHoareTripleChecker+Valid, 18193 SdHoareTripleChecker+Invalid, 6174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 6071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:31:38,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5798 Valid, 18193 Invalid, 6174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 6071 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-20 02:31:38,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92520 states. [2023-12-20 02:31:39,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92520 to 59294. [2023-12-20 02:31:39,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59294 states, 59289 states have (on average 1.1874209381166827) internal successors, (70401), 59293 states have internal predecessors, (70401), 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 02:31:39,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59294 states to 59294 states and 70401 transitions. [2023-12-20 02:31:39,113 INFO L78 Accepts]: Start accepts. Automaton has 59294 states and 70401 transitions. Word has length 168 [2023-12-20 02:31:39,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:31:39,113 INFO L495 AbstractCegarLoop]: Abstraction has 59294 states and 70401 transitions. [2023-12-20 02:31:39,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 8.0) internal successors, (168), 20 states have internal predecessors, (168), 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 02:31:39,113 INFO L276 IsEmpty]: Start isEmpty. Operand 59294 states and 70401 transitions. [2023-12-20 02:31:39,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-20 02:31:39,172 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:31:39,172 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:31:39,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-20 02:31:39,172 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:31:39,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:31:39,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1549963865, now seen corresponding path program 1 times [2023-12-20 02:31:39,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:31:39,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863773976] [2023-12-20 02:31:39,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:31:39,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:31:39,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:31:39,763 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 02:31:39,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:31:39,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863773976] [2023-12-20 02:31:39,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863773976] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:31:39,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:31:39,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-20 02:31:39,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934146684] [2023-12-20 02:31:39,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:31:39,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-20 02:31:39,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:31:39,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-20 02:31:39,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2023-12-20 02:31:39,764 INFO L87 Difference]: Start difference. First operand 59294 states and 70401 transitions. Second operand has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 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 02:31:41,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:31:41,193 INFO L93 Difference]: Finished difference Result 121783 states and 150766 transitions. [2023-12-20 02:31:41,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-20 02:31:41,193 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 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) Word has length 168 [2023-12-20 02:31:41,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:31:41,322 INFO L225 Difference]: With dead ends: 121783 [2023-12-20 02:31:41,322 INFO L226 Difference]: Without dead ends: 117511 [2023-12-20 02:31:41,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2023-12-20 02:31:41,355 INFO L413 NwaCegarLoop]: 988 mSDtfsCounter, 5251 mSDsluCounter, 8978 mSDsCounter, 0 mSdLazyCounter, 1714 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5251 SdHoareTripleChecker+Valid, 9966 SdHoareTripleChecker+Invalid, 1795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:31:41,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5251 Valid, 9966 Invalid, 1795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1714 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 02:31:41,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117511 states. [2023-12-20 02:31:42,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117511 to 68988. [2023-12-20 02:31:42,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68988 states, 68983 states have (on average 1.1812185610947625) internal successors, (81484), 68987 states have internal predecessors, (81484), 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 02:31:42,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68988 states to 68988 states and 81484 transitions. [2023-12-20 02:31:42,605 INFO L78 Accepts]: Start accepts. Automaton has 68988 states and 81484 transitions. Word has length 168 [2023-12-20 02:31:42,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:31:42,605 INFO L495 AbstractCegarLoop]: Abstraction has 68988 states and 81484 transitions. [2023-12-20 02:31:42,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 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 02:31:42,605 INFO L276 IsEmpty]: Start isEmpty. Operand 68988 states and 81484 transitions. [2023-12-20 02:31:42,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-20 02:31:42,673 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:31:42,673 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:31:42,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-20 02:31:42,673 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:31:42,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:31:42,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1858416729, now seen corresponding path program 1 times [2023-12-20 02:31:42,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:31:42,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535379689] [2023-12-20 02:31:42,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:31:42,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:31:42,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:31:44,172 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 02:31:44,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:31:44,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535379689] [2023-12-20 02:31:44,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535379689] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:31:44,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:31:44,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2023-12-20 02:31:44,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380872324] [2023-12-20 02:31:44,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:31:44,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-20 02:31:44,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:31:44,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-20 02:31:44,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2023-12-20 02:31:44,174 INFO L87 Difference]: Start difference. First operand 68988 states and 81484 transitions. Second operand has 22 states, 22 states have (on average 7.636363636363637) internal successors, (168), 21 states have internal predecessors, (168), 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 02:31:47,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:31:47,788 INFO L93 Difference]: Finished difference Result 83823 states and 99800 transitions. [2023-12-20 02:31:47,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-20 02:31:47,789 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 7.636363636363637) internal successors, (168), 21 states have internal predecessors, (168), 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) Word has length 168 [2023-12-20 02:31:47,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:31:47,869 INFO L225 Difference]: With dead ends: 83823 [2023-12-20 02:31:47,870 INFO L226 Difference]: Without dead ends: 82579 [2023-12-20 02:31:47,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=364, Invalid=1196, Unknown=0, NotChecked=0, Total=1560 [2023-12-20 02:31:47,879 INFO L413 NwaCegarLoop]: 868 mSDtfsCounter, 3781 mSDsluCounter, 10949 mSDsCounter, 0 mSdLazyCounter, 3924 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3781 SdHoareTripleChecker+Valid, 11817 SdHoareTripleChecker+Invalid, 3932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 3924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-20 02:31:47,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3781 Valid, 11817 Invalid, 3932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 3924 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-20 02:31:47,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82579 states. [2023-12-20 02:31:48,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82579 to 72619. [2023-12-20 02:31:48,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72619 states, 72614 states have (on average 1.1803233536232682) internal successors, (85708), 72618 states have internal predecessors, (85708), 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 02:31:48,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72619 states to 72619 states and 85708 transitions. [2023-12-20 02:31:48,825 INFO L78 Accepts]: Start accepts. Automaton has 72619 states and 85708 transitions. Word has length 168 [2023-12-20 02:31:48,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:31:48,825 INFO L495 AbstractCegarLoop]: Abstraction has 72619 states and 85708 transitions. [2023-12-20 02:31:48,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.636363636363637) internal successors, (168), 21 states have internal predecessors, (168), 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 02:31:48,825 INFO L276 IsEmpty]: Start isEmpty. Operand 72619 states and 85708 transitions. [2023-12-20 02:31:48,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-20 02:31:48,894 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:31:48,894 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:31:48,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-20 02:31:48,895 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:31:48,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:31:48,895 INFO L85 PathProgramCache]: Analyzing trace with hash 799569118, now seen corresponding path program 1 times [2023-12-20 02:31:48,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:31:48,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349928478] [2023-12-20 02:31:48,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:31:48,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:31:48,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:31:49,498 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 02:31:49,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:31:49,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349928478] [2023-12-20 02:31:49,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349928478] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:31:49,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:31:49,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-20 02:31:49,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542004981] [2023-12-20 02:31:49,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:31:49,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-20 02:31:49,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:31:49,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-20 02:31:49,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2023-12-20 02:31:49,500 INFO L87 Difference]: Start difference. First operand 72619 states and 85708 transitions. Second operand has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 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 02:31:51,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:31:51,541 INFO L93 Difference]: Finished difference Result 121667 states and 145845 transitions. [2023-12-20 02:31:51,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-12-20 02:31:51,542 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 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) Word has length 168 [2023-12-20 02:31:51,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:31:51,680 INFO L225 Difference]: With dead ends: 121667 [2023-12-20 02:31:51,680 INFO L226 Difference]: Without dead ends: 118200 [2023-12-20 02:31:51,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=725, Invalid=1927, Unknown=0, NotChecked=0, Total=2652 [2023-12-20 02:31:51,707 INFO L413 NwaCegarLoop]: 1229 mSDtfsCounter, 4035 mSDsluCounter, 8517 mSDsCounter, 0 mSdLazyCounter, 2043 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4035 SdHoareTripleChecker+Valid, 9746 SdHoareTripleChecker+Invalid, 2180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 2043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 02:31:51,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4035 Valid, 9746 Invalid, 2180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 2043 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 02:31:51,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118200 states. [2023-12-20 02:31:52,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118200 to 97734. [2023-12-20 02:31:52,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97734 states, 97729 states have (on average 1.1717709175372715) internal successors, (114516), 97733 states have internal predecessors, (114516), 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 02:31:53,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97734 states to 97734 states and 114516 transitions. [2023-12-20 02:31:53,017 INFO L78 Accepts]: Start accepts. Automaton has 97734 states and 114516 transitions. Word has length 168 [2023-12-20 02:31:53,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:31:53,017 INFO L495 AbstractCegarLoop]: Abstraction has 97734 states and 114516 transitions. [2023-12-20 02:31:53,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 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 02:31:53,017 INFO L276 IsEmpty]: Start isEmpty. Operand 97734 states and 114516 transitions. [2023-12-20 02:31:53,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-20 02:31:53,337 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:31:53,338 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:31:53,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-20 02:31:53,338 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:31:53,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:31:53,338 INFO L85 PathProgramCache]: Analyzing trace with hash 449426203, now seen corresponding path program 1 times [2023-12-20 02:31:53,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:31:53,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032740391] [2023-12-20 02:31:53,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:31:53,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:31:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:31:53,731 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 02:31:53,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:31:53,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032740391] [2023-12-20 02:31:53,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032740391] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:31:53,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:31:53,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-20 02:31:53,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852625410] [2023-12-20 02:31:53,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:31:53,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-20 02:31:53,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:31:53,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-20 02:31:53,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-12-20 02:31:53,734 INFO L87 Difference]: Start difference. First operand 97734 states and 114516 transitions. Second operand has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 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 02:31:55,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:31:55,319 INFO L93 Difference]: Finished difference Result 165003 states and 195389 transitions. [2023-12-20 02:31:55,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-20 02:31:55,319 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 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) Word has length 168 [2023-12-20 02:31:55,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:31:55,491 INFO L225 Difference]: With dead ends: 165003 [2023-12-20 02:31:55,491 INFO L226 Difference]: Without dead ends: 159955 [2023-12-20 02:31:55,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=353, Invalid=979, Unknown=0, NotChecked=0, Total=1332 [2023-12-20 02:31:55,541 INFO L413 NwaCegarLoop]: 1236 mSDtfsCounter, 4231 mSDsluCounter, 8808 mSDsCounter, 0 mSdLazyCounter, 1958 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4231 SdHoareTripleChecker+Valid, 10044 SdHoareTripleChecker+Invalid, 2018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:31:55,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4231 Valid, 10044 Invalid, 2018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1958 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 02:31:55,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159955 states. [2023-12-20 02:31:57,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159955 to 134189. [2023-12-20 02:31:57,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134189 states, 134184 states have (on average 1.1635440887140047) internal successors, (156129), 134188 states have internal predecessors, (156129), 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 02:31:57,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134189 states to 134189 states and 156129 transitions. [2023-12-20 02:31:57,734 INFO L78 Accepts]: Start accepts. Automaton has 134189 states and 156129 transitions. Word has length 168 [2023-12-20 02:31:57,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:31:57,734 INFO L495 AbstractCegarLoop]: Abstraction has 134189 states and 156129 transitions. [2023-12-20 02:31:57,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 15 states have internal predecessors, (168), 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 02:31:57,735 INFO L276 IsEmpty]: Start isEmpty. Operand 134189 states and 156129 transitions. [2023-12-20 02:31:57,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-20 02:31:57,877 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:31:57,877 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:31:57,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-20 02:31:57,877 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:31:57,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:31:57,878 INFO L85 PathProgramCache]: Analyzing trace with hash 326829294, now seen corresponding path program 1 times [2023-12-20 02:31:57,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:31:57,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969932380] [2023-12-20 02:31:57,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:31:57,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:31:57,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:31:59,270 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 02:31:59,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:31:59,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969932380] [2023-12-20 02:31:59,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969932380] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:31:59,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:31:59,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-20 02:31:59,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858257242] [2023-12-20 02:31:59,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:31:59,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-20 02:31:59,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:31:59,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-20 02:31:59,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2023-12-20 02:31:59,271 INFO L87 Difference]: Start difference. First operand 134189 states and 156129 transitions. Second operand has 21 states, 21 states have (on average 8.0) internal successors, (168), 20 states have internal predecessors, (168), 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 02:32:06,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:32:06,791 INFO L93 Difference]: Finished difference Result 156945 states and 183461 transitions. [2023-12-20 02:32:06,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-12-20 02:32:06,791 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 8.0) internal successors, (168), 20 states have internal predecessors, (168), 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) Word has length 168 [2023-12-20 02:32:06,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:32:06,952 INFO L225 Difference]: With dead ends: 156945 [2023-12-20 02:32:06,952 INFO L226 Difference]: Without dead ends: 155123 [2023-12-20 02:32:06,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1196 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=1265, Invalid=3991, Unknown=0, NotChecked=0, Total=5256 [2023-12-20 02:32:06,973 INFO L413 NwaCegarLoop]: 1003 mSDtfsCounter, 5510 mSDsluCounter, 12284 mSDsCounter, 0 mSdLazyCounter, 4425 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5510 SdHoareTripleChecker+Valid, 13287 SdHoareTripleChecker+Invalid, 4537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 4425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-20 02:32:06,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5510 Valid, 13287 Invalid, 4537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 4425 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-20 02:32:07,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155123 states. [2023-12-20 02:32:08,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155123 to 136466. [2023-12-20 02:32:08,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136466 states, 136461 states have (on average 1.162779109049472) internal successors, (158674), 136465 states have internal predecessors, (158674), 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 02:32:08,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136466 states to 136466 states and 158674 transitions. [2023-12-20 02:32:08,881 INFO L78 Accepts]: Start accepts. Automaton has 136466 states and 158674 transitions. Word has length 168 [2023-12-20 02:32:08,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:32:08,881 INFO L495 AbstractCegarLoop]: Abstraction has 136466 states and 158674 transitions. [2023-12-20 02:32:08,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 8.0) internal successors, (168), 20 states have internal predecessors, (168), 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 02:32:08,882 INFO L276 IsEmpty]: Start isEmpty. Operand 136466 states and 158674 transitions. [2023-12-20 02:32:09,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-20 02:32:09,021 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:32:09,021 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:32:09,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-20 02:32:09,021 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:32:09,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:32:09,022 INFO L85 PathProgramCache]: Analyzing trace with hash -2048019263, now seen corresponding path program 1 times [2023-12-20 02:32:09,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:32:09,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881086815] [2023-12-20 02:32:09,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:32:09,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:32:09,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:32:09,060 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 02:32:09,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:32:09,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881086815] [2023-12-20 02:32:09,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881086815] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:32:09,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:32:09,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:32:09,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252460972] [2023-12-20 02:32:09,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:32:09,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:32:09,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:32:09,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:32:09,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:32:09,062 INFO L87 Difference]: Start difference. First operand 136466 states and 158674 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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 02:32:09,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:32:09,973 INFO L93 Difference]: Finished difference Result 180962 states and 211616 transitions. [2023-12-20 02:32:09,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:32:09,974 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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) Word has length 169 [2023-12-20 02:32:09,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:32:10,126 INFO L225 Difference]: With dead ends: 180962 [2023-12-20 02:32:10,127 INFO L226 Difference]: Without dead ends: 113230 [2023-12-20 02:32:10,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 02:32:10,194 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 418 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:32:10,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 618 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:32:10,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113230 states. [2023-12-20 02:32:11,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113230 to 111306. [2023-12-20 02:32:11,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111306 states, 111301 states have (on average 1.1571414452700335) internal successors, (128791), 111305 states have internal predecessors, (128791), 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 02:32:12,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111306 states to 111306 states and 128791 transitions. [2023-12-20 02:32:12,053 INFO L78 Accepts]: Start accepts. Automaton has 111306 states and 128791 transitions. Word has length 169 [2023-12-20 02:32:12,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:32:12,053 INFO L495 AbstractCegarLoop]: Abstraction has 111306 states and 128791 transitions. [2023-12-20 02:32:12,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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 02:32:12,053 INFO L276 IsEmpty]: Start isEmpty. Operand 111306 states and 128791 transitions. [2023-12-20 02:32:12,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-20 02:32:12,164 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:32:12,164 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:32:12,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-20 02:32:12,164 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:32:12,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:32:12,164 INFO L85 PathProgramCache]: Analyzing trace with hash -555212355, now seen corresponding path program 1 times [2023-12-20 02:32:12,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:32:12,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595719508] [2023-12-20 02:32:12,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:32:12,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:32:12,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:32:12,206 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 02:32:12,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:32:12,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595719508] [2023-12-20 02:32:12,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595719508] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:32:12,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:32:12,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:32:12,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18884300] [2023-12-20 02:32:12,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:32:12,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:32:12,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:32:12,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:32:12,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:32:12,207 INFO L87 Difference]: Start difference. First operand 111306 states and 128791 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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 02:32:12,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:32:12,557 INFO L93 Difference]: Finished difference Result 150055 states and 174143 transitions. [2023-12-20 02:32:12,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:32:12,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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) Word has length 169 [2023-12-20 02:32:12,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:32:12,668 INFO L225 Difference]: With dead ends: 150055 [2023-12-20 02:32:12,668 INFO L226 Difference]: Without dead ends: 96071 [2023-12-20 02:32:13,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 02:32:13,015 INFO L413 NwaCegarLoop]: 409 mSDtfsCounter, 387 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:32:13,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 467 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:32:13,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96071 states. [2023-12-20 02:32:14,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96071 to 95292. [2023-12-20 02:32:14,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95292 states, 95287 states have (on average 1.148824078835518) internal successors, (109468), 95291 states have internal predecessors, (109468), 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 02:32:14,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95292 states to 95292 states and 109468 transitions. [2023-12-20 02:32:14,438 INFO L78 Accepts]: Start accepts. Automaton has 95292 states and 109468 transitions. Word has length 169 [2023-12-20 02:32:14,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:32:14,439 INFO L495 AbstractCegarLoop]: Abstraction has 95292 states and 109468 transitions. [2023-12-20 02:32:14,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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 02:32:14,439 INFO L276 IsEmpty]: Start isEmpty. Operand 95292 states and 109468 transitions. [2023-12-20 02:32:14,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-20 02:32:14,521 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:32:14,521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:32:14,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-20 02:32:14,522 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:32:14,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:32:14,522 INFO L85 PathProgramCache]: Analyzing trace with hash -137568677, now seen corresponding path program 1 times [2023-12-20 02:32:14,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:32:14,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572185517] [2023-12-20 02:32:14,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:32:14,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:32:14,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:32:14,571 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 02:32:14,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:32:14,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572185517] [2023-12-20 02:32:14,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572185517] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:32:14,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:32:14,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:32:14,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92961525] [2023-12-20 02:32:14,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:32:14,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:32:14,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:32:14,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:32:14,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:32:14,572 INFO L87 Difference]: Start difference. First operand 95292 states and 109468 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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 02:32:14,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:32:14,806 INFO L93 Difference]: Finished difference Result 109436 states and 125797 transitions. [2023-12-20 02:32:14,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:32:14,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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) Word has length 169 [2023-12-20 02:32:14,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:32:14,901 INFO L225 Difference]: With dead ends: 109436 [2023-12-20 02:32:14,901 INFO L226 Difference]: Without dead ends: 95133 [2023-12-20 02:32:14,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 02:32:14,936 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 280 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:32:14,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 1011 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:32:14,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95133 states. [2023-12-20 02:32:16,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95133 to 94966. [2023-12-20 02:32:16,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94966 states, 94961 states have (on average 1.1457335116521519) internal successors, (108800), 94965 states have internal predecessors, (108800), 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 02:32:16,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94966 states to 94966 states and 108800 transitions. [2023-12-20 02:32:16,421 INFO L78 Accepts]: Start accepts. Automaton has 94966 states and 108800 transitions. Word has length 169 [2023-12-20 02:32:16,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:32:16,421 INFO L495 AbstractCegarLoop]: Abstraction has 94966 states and 108800 transitions. [2023-12-20 02:32:16,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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 02:32:16,422 INFO L276 IsEmpty]: Start isEmpty. Operand 94966 states and 108800 transitions. [2023-12-20 02:32:16,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-20 02:32:16,501 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:32:16,501 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:32:16,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-20 02:32:16,502 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:32:16,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:32:16,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1018105990, now seen corresponding path program 1 times [2023-12-20 02:32:16,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:32:16,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40810197] [2023-12-20 02:32:16,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:32:16,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:32:16,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:32:16,538 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 02:32:16,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:32:16,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40810197] [2023-12-20 02:32:16,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40810197] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:32:16,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:32:16,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:32:16,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183992883] [2023-12-20 02:32:16,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:32:16,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:32:16,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:32:16,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:32:16,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:32:16,540 INFO L87 Difference]: Start difference. First operand 94966 states and 108800 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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 02:32:16,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:32:16,853 INFO L93 Difference]: Finished difference Result 130993 states and 151270 transitions. [2023-12-20 02:32:16,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:32:16,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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) Word has length 169 [2023-12-20 02:32:16,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:32:16,934 INFO L225 Difference]: With dead ends: 130993 [2023-12-20 02:32:16,935 INFO L226 Difference]: Without dead ends: 84245 [2023-12-20 02:32:16,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 02:32:16,978 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 385 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:32:16,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 536 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:32:17,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84245 states. [2023-12-20 02:32:18,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84245 to 83183. [2023-12-20 02:32:18,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83183 states, 83178 states have (on average 1.1403616340859362) internal successors, (94853), 83182 states have internal predecessors, (94853), 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 02:32:18,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83183 states to 83183 states and 94853 transitions. [2023-12-20 02:32:18,181 INFO L78 Accepts]: Start accepts. Automaton has 83183 states and 94853 transitions. Word has length 169 [2023-12-20 02:32:18,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:32:18,181 INFO L495 AbstractCegarLoop]: Abstraction has 83183 states and 94853 transitions. [2023-12-20 02:32:18,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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 02:32:18,182 INFO L276 IsEmpty]: Start isEmpty. Operand 83183 states and 94853 transitions. [2023-12-20 02:32:18,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-20 02:32:18,254 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:32:18,254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:32:18,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-12-20 02:32:18,255 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:32:18,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:32:18,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1122331827, now seen corresponding path program 1 times [2023-12-20 02:32:18,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:32:18,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283243287] [2023-12-20 02:32:18,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:32:18,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:32:18,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:32:18,287 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 02:32:18,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:32:18,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283243287] [2023-12-20 02:32:18,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283243287] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:32:18,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:32:18,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:32:18,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288991592] [2023-12-20 02:32:18,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:32:18,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:32:18,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:32:18,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:32:18,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:32:18,288 INFO L87 Difference]: Start difference. First operand 83183 states and 94853 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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 02:32:18,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:32:18,794 INFO L93 Difference]: Finished difference Result 109571 states and 125921 transitions. [2023-12-20 02:32:18,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:32:18,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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) Word has length 169 [2023-12-20 02:32:18,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:32:18,860 INFO L225 Difference]: With dead ends: 109571 [2023-12-20 02:32:18,861 INFO L226 Difference]: Without dead ends: 62498 [2023-12-20 02:32:18,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 02:32:18,900 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 394 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:32:18,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 512 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:32:18,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62498 states. [2023-12-20 02:32:19,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62498 to 61522. [2023-12-20 02:32:19,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61522 states, 61517 states have (on average 1.1351496334346602) internal successors, (69831), 61521 states have internal predecessors, (69831), 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 02:32:19,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61522 states to 61522 states and 69831 transitions. [2023-12-20 02:32:19,778 INFO L78 Accepts]: Start accepts. Automaton has 61522 states and 69831 transitions. Word has length 169 [2023-12-20 02:32:19,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:32:19,778 INFO L495 AbstractCegarLoop]: Abstraction has 61522 states and 69831 transitions. [2023-12-20 02:32:19,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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 02:32:19,779 INFO L276 IsEmpty]: Start isEmpty. Operand 61522 states and 69831 transitions. [2023-12-20 02:32:19,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-20 02:32:19,839 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:32:19,840 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:32:19,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-12-20 02:32:19,840 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:32:19,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:32:19,840 INFO L85 PathProgramCache]: Analyzing trace with hash -2070879393, now seen corresponding path program 1 times [2023-12-20 02:32:19,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:32:19,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925242184] [2023-12-20 02:32:19,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:32:19,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:32:19,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:32:20,072 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 02:32:20,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:32:20,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925242184] [2023-12-20 02:32:20,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925242184] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:32:20,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:32:20,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:32:20,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769170469] [2023-12-20 02:32:20,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:32:20,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:32:20,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:32:20,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:32:20,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:32:20,079 INFO L87 Difference]: Start difference. First operand 61522 states and 69831 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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 02:32:20,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:32:20,278 INFO L93 Difference]: Finished difference Result 83519 states and 95625 transitions. [2023-12-20 02:32:20,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:32:20,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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) Word has length 169 [2023-12-20 02:32:20,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:32:20,322 INFO L225 Difference]: With dead ends: 83519 [2023-12-20 02:32:20,323 INFO L226 Difference]: Without dead ends: 47352 [2023-12-20 02:32:20,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 02:32:20,351 INFO L413 NwaCegarLoop]: 398 mSDtfsCounter, 378 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:32:20,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 465 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:32:20,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47352 states. [2023-12-20 02:32:20,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47352 to 47080. [2023-12-20 02:32:20,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47080 states, 47075 states have (on average 1.1320870950610729) internal successors, (53293), 47079 states have internal predecessors, (53293), 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 02:32:20,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47080 states to 47080 states and 53293 transitions. [2023-12-20 02:32:20,948 INFO L78 Accepts]: Start accepts. Automaton has 47080 states and 53293 transitions. Word has length 169 [2023-12-20 02:32:20,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:32:20,948 INFO L495 AbstractCegarLoop]: Abstraction has 47080 states and 53293 transitions. [2023-12-20 02:32:20,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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 02:32:20,949 INFO L276 IsEmpty]: Start isEmpty. Operand 47080 states and 53293 transitions. [2023-12-20 02:32:20,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-20 02:32:20,983 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:32:20,983 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:32:20,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-12-20 02:32:20,983 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:32:20,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:32:20,983 INFO L85 PathProgramCache]: Analyzing trace with hash 207737976, now seen corresponding path program 1 times [2023-12-20 02:32:20,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:32:20,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206102384] [2023-12-20 02:32:20,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:32:20,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:32:21,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:32:21,044 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 02:32:21,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:32:21,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206102384] [2023-12-20 02:32:21,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206102384] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:32:21,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:32:21,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:32:21,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263921354] [2023-12-20 02:32:21,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:32:21,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:32:21,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:32:21,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:32:21,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:32:21,045 INFO L87 Difference]: Start difference. First operand 47080 states and 53293 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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 02:32:21,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:32:21,183 INFO L93 Difference]: Finished difference Result 52324 states and 59514 transitions. [2023-12-20 02:32:21,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:32:21,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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) Word has length 169 [2023-12-20 02:32:21,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:32:21,223 INFO L225 Difference]: With dead ends: 52324 [2023-12-20 02:32:21,224 INFO L226 Difference]: Without dead ends: 40192 [2023-12-20 02:32:21,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 02:32:21,242 INFO L413 NwaCegarLoop]: 728 mSDtfsCounter, 254 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 1182 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:32:21,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 1182 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:32:21,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40192 states. [2023-12-20 02:32:21,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40192 to 39875. [2023-12-20 02:32:21,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39875 states, 39870 states have (on average 1.1321043391020817) internal successors, (45137), 39874 states have internal predecessors, (45137), 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 02:32:21,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39875 states to 39875 states and 45137 transitions. [2023-12-20 02:32:21,799 INFO L78 Accepts]: Start accepts. Automaton has 39875 states and 45137 transitions. Word has length 169 [2023-12-20 02:32:21,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:32:21,800 INFO L495 AbstractCegarLoop]: Abstraction has 39875 states and 45137 transitions. [2023-12-20 02:32:21,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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 02:32:21,800 INFO L276 IsEmpty]: Start isEmpty. Operand 39875 states and 45137 transitions. [2023-12-20 02:32:21,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-20 02:32:21,829 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:32:21,829 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:32:21,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-12-20 02:32:21,830 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:32:21,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:32:21,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1107661777, now seen corresponding path program 1 times [2023-12-20 02:32:21,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:32:21,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504551054] [2023-12-20 02:32:21,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:32:21,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:32:21,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:32:21,875 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 02:32:21,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:32:21,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504551054] [2023-12-20 02:32:21,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504551054] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:32:21,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:32:21,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:32:21,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480453631] [2023-12-20 02:32:21,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:32:21,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:32:21,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:32:21,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:32:21,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:32:21,877 INFO L87 Difference]: Start difference. First operand 39875 states and 45137 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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 02:32:21,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:32:21,968 INFO L93 Difference]: Finished difference Result 46413 states and 52734 transitions. [2023-12-20 02:32:21,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:32:21,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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) Word has length 169 [2023-12-20 02:32:21,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:32:22,181 INFO L225 Difference]: With dead ends: 46413 [2023-12-20 02:32:22,181 INFO L226 Difference]: Without dead ends: 36483 [2023-12-20 02:32:22,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 02:32:22,188 INFO L413 NwaCegarLoop]: 719 mSDtfsCounter, 269 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:32:22,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 1179 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:32:22,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36483 states. [2023-12-20 02:32:22,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36483 to 36221. [2023-12-20 02:32:22,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36221 states, 36216 states have (on average 1.1319858626021648) internal successors, (40996), 36220 states have internal predecessors, (40996), 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 02:32:22,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36221 states to 36221 states and 40996 transitions. [2023-12-20 02:32:22,483 INFO L78 Accepts]: Start accepts. Automaton has 36221 states and 40996 transitions. Word has length 169 [2023-12-20 02:32:22,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:32:22,484 INFO L495 AbstractCegarLoop]: Abstraction has 36221 states and 40996 transitions. [2023-12-20 02:32:22,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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 02:32:22,484 INFO L276 IsEmpty]: Start isEmpty. Operand 36221 states and 40996 transitions. [2023-12-20 02:32:22,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-20 02:32:22,512 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:32:22,512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:32:22,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-12-20 02:32:22,512 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:32:22,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:32:22,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1167659175, now seen corresponding path program 1 times [2023-12-20 02:32:22,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:32:22,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140931256] [2023-12-20 02:32:22,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:32:22,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:32:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:32:22,550 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 02:32:22,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:32:22,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140931256] [2023-12-20 02:32:22,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140931256] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:32:22,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:32:22,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:32:22,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031806679] [2023-12-20 02:32:22,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:32:22,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:32:22,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:32:22,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:32:22,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:32:22,551 INFO L87 Difference]: Start difference. First operand 36221 states and 40996 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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 02:32:22,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:32:22,864 INFO L93 Difference]: Finished difference Result 50614 states and 58438 transitions. [2023-12-20 02:32:22,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:32:22,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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) Word has length 169 [2023-12-20 02:32:22,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:32:22,895 INFO L225 Difference]: With dead ends: 50614 [2023-12-20 02:32:22,895 INFO L226 Difference]: Without dead ends: 28311 [2023-12-20 02:32:22,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 02:32:22,908 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 372 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:32:22,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 543 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:32:22,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28311 states. [2023-12-20 02:32:23,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28311 to 26495. [2023-12-20 02:32:23,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26495 states, 26490 states have (on average 1.141147602869007) internal successors, (30229), 26494 states have internal predecessors, (30229), 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 02:32:23,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26495 states to 26495 states and 30229 transitions. [2023-12-20 02:32:23,172 INFO L78 Accepts]: Start accepts. Automaton has 26495 states and 30229 transitions. Word has length 169 [2023-12-20 02:32:23,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:32:23,172 INFO L495 AbstractCegarLoop]: Abstraction has 26495 states and 30229 transitions. [2023-12-20 02:32:23,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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 02:32:23,172 INFO L276 IsEmpty]: Start isEmpty. Operand 26495 states and 30229 transitions. [2023-12-20 02:32:23,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-12-20 02:32:23,187 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:32:23,187 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:32:23,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-12-20 02:32:23,187 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:32:23,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:32:23,188 INFO L85 PathProgramCache]: Analyzing trace with hash 736200159, now seen corresponding path program 1 times [2023-12-20 02:32:23,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:32:23,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690303775] [2023-12-20 02:32:23,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:32:23,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:32:23,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:32:23,226 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 02:32:23,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:32:23,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690303775] [2023-12-20 02:32:23,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690303775] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:32:23,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:32:23,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:32:23,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384712193] [2023-12-20 02:32:23,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:32:23,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:32:23,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:32:23,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:32:23,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:32:23,227 INFO L87 Difference]: Start difference. First operand 26495 states and 30229 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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 02:32:23,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:32:23,304 INFO L93 Difference]: Finished difference Result 30655 states and 35172 transitions. [2023-12-20 02:32:23,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:32:23,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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) Word has length 173 [2023-12-20 02:32:23,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:32:23,326 INFO L225 Difference]: With dead ends: 30655 [2023-12-20 02:32:23,326 INFO L226 Difference]: Without dead ends: 23869 [2023-12-20 02:32:23,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 02:32:23,474 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 309 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:32:23,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 960 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:32:23,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23869 states. [2023-12-20 02:32:23,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23869 to 23783. [2023-12-20 02:32:23,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23783 states, 23778 states have (on average 1.1431575405837329) internal successors, (27182), 23782 states have internal predecessors, (27182), 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 02:32:23,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23783 states to 23783 states and 27182 transitions. [2023-12-20 02:32:23,644 INFO L78 Accepts]: Start accepts. Automaton has 23783 states and 27182 transitions. Word has length 173 [2023-12-20 02:32:23,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:32:23,645 INFO L495 AbstractCegarLoop]: Abstraction has 23783 states and 27182 transitions. [2023-12-20 02:32:23,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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 02:32:23,645 INFO L276 IsEmpty]: Start isEmpty. Operand 23783 states and 27182 transitions. [2023-12-20 02:32:23,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-12-20 02:32:23,660 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:32:23,660 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:32:23,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-12-20 02:32:23,660 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:32:23,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:32:23,661 INFO L85 PathProgramCache]: Analyzing trace with hash -376670231, now seen corresponding path program 1 times [2023-12-20 02:32:23,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:32:23,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60163850] [2023-12-20 02:32:23,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:32:23,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:32:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:32:23,701 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 02:32:23,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:32:23,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60163850] [2023-12-20 02:32:23,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60163850] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:32:23,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:32:23,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:32:23,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838968524] [2023-12-20 02:32:23,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:32:23,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:32:23,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:32:23,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:32:23,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:32:23,703 INFO L87 Difference]: Start difference. First operand 23783 states and 27182 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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 02:32:23,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:32:23,771 INFO L93 Difference]: Finished difference Result 28094 states and 32228 transitions. [2023-12-20 02:32:23,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:32:23,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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) Word has length 173 [2023-12-20 02:32:23,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:32:23,792 INFO L225 Difference]: With dead ends: 28094 [2023-12-20 02:32:23,793 INFO L226 Difference]: Without dead ends: 22024 [2023-12-20 02:32:23,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 02:32:23,803 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 322 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:32:23,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 980 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:32:23,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22024 states. [2023-12-20 02:32:24,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22024 to 21846. [2023-12-20 02:32:24,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21846 states, 21841 states have (on average 1.1435373838194223) internal successors, (24976), 21845 states have internal predecessors, (24976), 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 02:32:24,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21846 states to 21846 states and 24976 transitions. [2023-12-20 02:32:24,073 INFO L78 Accepts]: Start accepts. Automaton has 21846 states and 24976 transitions. Word has length 173 [2023-12-20 02:32:24,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:32:24,073 INFO L495 AbstractCegarLoop]: Abstraction has 21846 states and 24976 transitions. [2023-12-20 02:32:24,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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 02:32:24,074 INFO L276 IsEmpty]: Start isEmpty. Operand 21846 states and 24976 transitions. [2023-12-20 02:32:24,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-12-20 02:32:24,086 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:32:24,086 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:32:24,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-12-20 02:32:24,086 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:32:24,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:32:24,086 INFO L85 PathProgramCache]: Analyzing trace with hash 977477953, now seen corresponding path program 1 times [2023-12-20 02:32:24,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:32:24,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133506274] [2023-12-20 02:32:24,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:32:24,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:32:24,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:32:24,124 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 02:32:24,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:32:24,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133506274] [2023-12-20 02:32:24,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133506274] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:32:24,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:32:24,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:32:24,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980000067] [2023-12-20 02:32:24,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:32:24,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:32:24,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:32:24,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:32:24,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:32:24,126 INFO L87 Difference]: Start difference. First operand 21846 states and 24976 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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 02:32:24,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:32:24,190 INFO L93 Difference]: Finished difference Result 25827 states and 29670 transitions. [2023-12-20 02:32:24,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:32:24,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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) Word has length 173 [2023-12-20 02:32:24,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:32:24,210 INFO L225 Difference]: With dead ends: 25827 [2023-12-20 02:32:24,210 INFO L226 Difference]: Without dead ends: 20028 [2023-12-20 02:32:24,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 02:32:24,219 INFO L413 NwaCegarLoop]: 716 mSDtfsCounter, 314 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:32:24,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 1164 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:32:24,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20028 states. [2023-12-20 02:32:24,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20028 to 19787. [2023-12-20 02:32:24,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19787 states, 19782 states have (on average 1.143362652916793) internal successors, (22618), 19786 states have internal predecessors, (22618), 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 02:32:24,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19787 states to 19787 states and 22618 transitions. [2023-12-20 02:32:24,395 INFO L78 Accepts]: Start accepts. Automaton has 19787 states and 22618 transitions. Word has length 173 [2023-12-20 02:32:24,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:32:24,395 INFO L495 AbstractCegarLoop]: Abstraction has 19787 states and 22618 transitions. [2023-12-20 02:32:24,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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 02:32:24,395 INFO L276 IsEmpty]: Start isEmpty. Operand 19787 states and 22618 transitions. [2023-12-20 02:32:24,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-20 02:32:24,408 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:32:24,408 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:32:24,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-12-20 02:32:24,408 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:32:24,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:32:24,408 INFO L85 PathProgramCache]: Analyzing trace with hash -504161139, now seen corresponding path program 1 times [2023-12-20 02:32:24,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:32:24,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139523301] [2023-12-20 02:32:24,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:32:24,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:32:24,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:32:25,615 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 02:32:25,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:32:25,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139523301] [2023-12-20 02:32:25,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139523301] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:32:25,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:32:25,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2023-12-20 02:32:25,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20828337] [2023-12-20 02:32:25,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:32:25,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-20 02:32:25,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:32:25,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-20 02:32:25,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2023-12-20 02:32:25,617 INFO L87 Difference]: Start difference. First operand 19787 states and 22618 transitions. Second operand has 22 states, 22 states have (on average 7.909090909090909) internal successors, (174), 21 states have internal predecessors, (174), 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 02:32:30,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:32:30,797 INFO L93 Difference]: Finished difference Result 25396 states and 29957 transitions. [2023-12-20 02:32:30,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-12-20 02:32:30,797 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 7.909090909090909) internal successors, (174), 21 states have internal predecessors, (174), 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) Word has length 174 [2023-12-20 02:32:30,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:32:30,822 INFO L225 Difference]: With dead ends: 25396 [2023-12-20 02:32:30,822 INFO L226 Difference]: Without dead ends: 24079 [2023-12-20 02:32:30,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=558, Invalid=2304, Unknown=0, NotChecked=0, Total=2862 [2023-12-20 02:32:30,829 INFO L413 NwaCegarLoop]: 998 mSDtfsCounter, 4225 mSDsluCounter, 12434 mSDsCounter, 0 mSdLazyCounter, 3854 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4225 SdHoareTripleChecker+Valid, 13432 SdHoareTripleChecker+Invalid, 3899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 3854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:32:30,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4225 Valid, 13432 Invalid, 3899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 3854 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-20 02:32:30,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24079 states. [2023-12-20 02:32:31,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24079 to 20055. [2023-12-20 02:32:31,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20055 states, 20050 states have (on average 1.141147132169576) internal successors, (22880), 20054 states have internal predecessors, (22880), 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 02:32:31,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20055 states to 20055 states and 22880 transitions. [2023-12-20 02:32:31,047 INFO L78 Accepts]: Start accepts. Automaton has 20055 states and 22880 transitions. Word has length 174 [2023-12-20 02:32:31,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:32:31,047 INFO L495 AbstractCegarLoop]: Abstraction has 20055 states and 22880 transitions. [2023-12-20 02:32:31,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.909090909090909) internal successors, (174), 21 states have internal predecessors, (174), 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 02:32:31,047 INFO L276 IsEmpty]: Start isEmpty. Operand 20055 states and 22880 transitions. [2023-12-20 02:32:31,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-20 02:32:31,061 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:32:31,061 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:32:31,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-12-20 02:32:31,061 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:32:31,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:32:31,061 INFO L85 PathProgramCache]: Analyzing trace with hash 52172476, now seen corresponding path program 1 times [2023-12-20 02:32:31,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:32:31,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678360020] [2023-12-20 02:32:31,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:32:31,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:32:31,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:32:31,738 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 02:32:31,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:32:31,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678360020] [2023-12-20 02:32:31,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678360020] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:32:31,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:32:31,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-20 02:32:31,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135691732] [2023-12-20 02:32:31,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:32:31,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-20 02:32:31,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:32:31,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-20 02:32:31,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2023-12-20 02:32:31,739 INFO L87 Difference]: Start difference. First operand 20055 states and 22880 transitions. Second operand has 17 states, 17 states have (on average 10.235294117647058) internal successors, (174), 16 states have internal predecessors, (174), 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 02:32:32,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:32:32,876 INFO L93 Difference]: Finished difference Result 24548 states and 28916 transitions. [2023-12-20 02:32:32,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-20 02:32:32,876 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 10.235294117647058) internal successors, (174), 16 states have internal predecessors, (174), 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) Word has length 174 [2023-12-20 02:32:32,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:32:32,896 INFO L225 Difference]: With dead ends: 24548 [2023-12-20 02:32:32,896 INFO L226 Difference]: Without dead ends: 21699 [2023-12-20 02:32:32,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=218, Invalid=652, Unknown=0, NotChecked=0, Total=870 [2023-12-20 02:32:32,904 INFO L413 NwaCegarLoop]: 771 mSDtfsCounter, 2689 mSDsluCounter, 6715 mSDsCounter, 0 mSdLazyCounter, 1597 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2689 SdHoareTripleChecker+Valid, 7486 SdHoareTripleChecker+Invalid, 1605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:32:32,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2689 Valid, 7486 Invalid, 1605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1597 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 02:32:32,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21699 states. [2023-12-20 02:32:33,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21699 to 18950. [2023-12-20 02:32:33,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18950 states, 18945 states have (on average 1.1477434679334917) internal successors, (21744), 18949 states have internal predecessors, (21744), 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 02:32:33,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18950 states to 18950 states and 21744 transitions. [2023-12-20 02:32:33,081 INFO L78 Accepts]: Start accepts. Automaton has 18950 states and 21744 transitions. Word has length 174 [2023-12-20 02:32:33,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:32:33,081 INFO L495 AbstractCegarLoop]: Abstraction has 18950 states and 21744 transitions. [2023-12-20 02:32:33,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 10.235294117647058) internal successors, (174), 16 states have internal predecessors, (174), 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 02:32:33,082 INFO L276 IsEmpty]: Start isEmpty. Operand 18950 states and 21744 transitions. [2023-12-20 02:32:33,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-20 02:32:33,092 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:32:33,093 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:32:33,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-12-20 02:32:33,094 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:32:33,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:32:33,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1723882690, now seen corresponding path program 1 times [2023-12-20 02:32:33,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:32:33,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698539280] [2023-12-20 02:32:33,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:32:33,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:32:33,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:32:34,254 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 02:32:34,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:32:34,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698539280] [2023-12-20 02:32:34,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698539280] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:32:34,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:32:34,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-20 02:32:34,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498079236] [2023-12-20 02:32:34,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:32:34,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-20 02:32:34,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:32:34,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-20 02:32:34,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2023-12-20 02:32:34,256 INFO L87 Difference]: Start difference. First operand 18950 states and 21744 transitions. Second operand has 23 states, 23 states have (on average 7.565217391304348) internal successors, (174), 22 states have internal predecessors, (174), 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 02:32:39,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:32:39,451 INFO L93 Difference]: Finished difference Result 23234 states and 27361 transitions. [2023-12-20 02:32:39,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-12-20 02:32:39,452 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.565217391304348) internal successors, (174), 22 states have internal predecessors, (174), 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) Word has length 174 [2023-12-20 02:32:39,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:32:39,476 INFO L225 Difference]: With dead ends: 23234 [2023-12-20 02:32:39,476 INFO L226 Difference]: Without dead ends: 22287 [2023-12-20 02:32:39,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=743, Invalid=2679, Unknown=0, NotChecked=0, Total=3422 [2023-12-20 02:32:39,485 INFO L413 NwaCegarLoop]: 1075 mSDtfsCounter, 5241 mSDsluCounter, 15402 mSDsCounter, 0 mSdLazyCounter, 5415 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5241 SdHoareTripleChecker+Valid, 16477 SdHoareTripleChecker+Invalid, 5539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 5415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:32:39,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5241 Valid, 16477 Invalid, 5539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 5415 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-20 02:32:39,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22287 states. [2023-12-20 02:32:39,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22287 to 19205. [2023-12-20 02:32:39,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19205 states, 19200 states have (on average 1.145625) internal successors, (21996), 19204 states have internal predecessors, (21996), 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 02:32:39,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19205 states to 19205 states and 21996 transitions. [2023-12-20 02:32:39,674 INFO L78 Accepts]: Start accepts. Automaton has 19205 states and 21996 transitions. Word has length 174 [2023-12-20 02:32:39,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:32:39,674 INFO L495 AbstractCegarLoop]: Abstraction has 19205 states and 21996 transitions. [2023-12-20 02:32:39,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.565217391304348) internal successors, (174), 22 states have internal predecessors, (174), 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 02:32:39,674 INFO L276 IsEmpty]: Start isEmpty. Operand 19205 states and 21996 transitions. [2023-12-20 02:32:39,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-20 02:32:39,685 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:32:39,685 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:32:39,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-12-20 02:32:39,685 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:32:39,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:32:39,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1167225334, now seen corresponding path program 1 times [2023-12-20 02:32:39,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:32:39,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977545405] [2023-12-20 02:32:39,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:32:39,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:32:39,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:32:40,360 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 02:32:40,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:32:40,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977545405] [2023-12-20 02:32:40,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977545405] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:32:40,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:32:40,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-20 02:32:40,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96519617] [2023-12-20 02:32:40,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:32:40,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-20 02:32:40,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:32:40,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-20 02:32:40,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2023-12-20 02:32:40,362 INFO L87 Difference]: Start difference. First operand 19205 states and 21996 transitions. Second operand has 16 states, 16 states have (on average 10.875) internal successors, (174), 15 states have internal predecessors, (174), 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 02:32:41,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:32:41,605 INFO L93 Difference]: Finished difference Result 20744 states and 24110 transitions. [2023-12-20 02:32:41,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 02:32:41,605 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.875) internal successors, (174), 15 states have internal predecessors, (174), 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) Word has length 174 [2023-12-20 02:32:41,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:32:41,622 INFO L225 Difference]: With dead ends: 20744 [2023-12-20 02:32:41,623 INFO L226 Difference]: Without dead ends: 18276 [2023-12-20 02:32:41,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=167, Invalid=483, Unknown=0, NotChecked=0, Total=650 [2023-12-20 02:32:41,630 INFO L413 NwaCegarLoop]: 732 mSDtfsCounter, 1783 mSDsluCounter, 5201 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1783 SdHoareTripleChecker+Valid, 5933 SdHoareTripleChecker+Invalid, 1335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:32:41,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1783 Valid, 5933 Invalid, 1335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 02:32:41,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18276 states. [2023-12-20 02:32:41,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18276 to 18223. [2023-12-20 02:32:41,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18223 states, 18219 states have (on average 1.1517097535539822) internal successors, (20983), 18222 states have internal predecessors, (20983), 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 02:32:41,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18223 states to 18223 states and 20983 transitions. [2023-12-20 02:32:41,796 INFO L78 Accepts]: Start accepts. Automaton has 18223 states and 20983 transitions. Word has length 174 [2023-12-20 02:32:41,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:32:41,796 INFO L495 AbstractCegarLoop]: Abstraction has 18223 states and 20983 transitions. [2023-12-20 02:32:41,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.875) internal successors, (174), 15 states have internal predecessors, (174), 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 02:32:41,797 INFO L276 IsEmpty]: Start isEmpty. Operand 18223 states and 20983 transitions. [2023-12-20 02:32:41,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-20 02:32:41,808 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:32:41,808 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:32:41,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-12-20 02:32:41,808 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:32:41,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:32:41,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1137714931, now seen corresponding path program 1 times [2023-12-20 02:32:41,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:32:41,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147043194] [2023-12-20 02:32:41,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:32:41,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:32:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:32:42,432 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 02:32:42,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:32:42,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147043194] [2023-12-20 02:32:42,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147043194] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:32:42,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:32:42,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-20 02:32:42,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230502759] [2023-12-20 02:32:42,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:32:42,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-20 02:32:42,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:32:42,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-20 02:32:42,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2023-12-20 02:32:42,434 INFO L87 Difference]: Start difference. First operand 18223 states and 20983 transitions. Second operand has 21 states, 21 states have (on average 8.285714285714286) internal successors, (174), 20 states have internal predecessors, (174), 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 02:32:44,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:32:44,061 INFO L93 Difference]: Finished difference Result 20373 states and 23671 transitions. [2023-12-20 02:32:44,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-20 02:32:44,062 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 8.285714285714286) internal successors, (174), 20 states have internal predecessors, (174), 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) Word has length 174 [2023-12-20 02:32:44,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:32:44,078 INFO L225 Difference]: With dead ends: 20373 [2023-12-20 02:32:44,078 INFO L226 Difference]: Without dead ends: 17891 [2023-12-20 02:32:44,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=406, Invalid=1574, Unknown=0, NotChecked=0, Total=1980 [2023-12-20 02:32:44,084 INFO L413 NwaCegarLoop]: 670 mSDtfsCounter, 3083 mSDsluCounter, 6871 mSDsCounter, 0 mSdLazyCounter, 2442 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3083 SdHoareTripleChecker+Valid, 7541 SdHoareTripleChecker+Invalid, 2478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 02:32:44,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3083 Valid, 7541 Invalid, 2478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2442 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 02:32:44,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17891 states. [2023-12-20 02:32:44,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17891 to 17496. [2023-12-20 02:32:44,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17496 states, 17492 states have (on average 1.1566430368168306) internal successors, (20232), 17495 states have internal predecessors, (20232), 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 02:32:44,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17496 states to 17496 states and 20232 transitions. [2023-12-20 02:32:44,241 INFO L78 Accepts]: Start accepts. Automaton has 17496 states and 20232 transitions. Word has length 174 [2023-12-20 02:32:44,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:32:44,241 INFO L495 AbstractCegarLoop]: Abstraction has 17496 states and 20232 transitions. [2023-12-20 02:32:44,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 8.285714285714286) internal successors, (174), 20 states have internal predecessors, (174), 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 02:32:44,241 INFO L276 IsEmpty]: Start isEmpty. Operand 17496 states and 20232 transitions. [2023-12-20 02:32:44,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-20 02:32:44,250 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:32:44,250 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:32:44,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-12-20 02:32:44,250 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:32:44,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:32:44,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1226683645, now seen corresponding path program 1 times [2023-12-20 02:32:44,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:32:44,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413246398] [2023-12-20 02:32:44,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:32:44,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:32:44,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:32:45,472 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 02:32:45,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:32:45,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413246398] [2023-12-20 02:32:45,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413246398] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:32:45,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:32:45,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-20 02:32:45,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743322724] [2023-12-20 02:32:45,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:32:45,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-20 02:32:45,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:32:45,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-20 02:32:45,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2023-12-20 02:32:45,474 INFO L87 Difference]: Start difference. First operand 17496 states and 20232 transitions. Second operand has 23 states, 23 states have (on average 7.565217391304348) internal successors, (174), 22 states have internal predecessors, (174), 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 02:32:49,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:32:49,099 INFO L93 Difference]: Finished difference Result 18296 states and 21217 transitions. [2023-12-20 02:32:49,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-20 02:32:49,099 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.565217391304348) internal successors, (174), 22 states have internal predecessors, (174), 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) Word has length 174 [2023-12-20 02:32:49,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:32:49,116 INFO L225 Difference]: With dead ends: 18296 [2023-12-20 02:32:49,116 INFO L226 Difference]: Without dead ends: 17921 [2023-12-20 02:32:49,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=388, Invalid=1252, Unknown=0, NotChecked=0, Total=1640 [2023-12-20 02:32:49,122 INFO L413 NwaCegarLoop]: 831 mSDtfsCounter, 1929 mSDsluCounter, 10189 mSDsCounter, 0 mSdLazyCounter, 3452 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1929 SdHoareTripleChecker+Valid, 11020 SdHoareTripleChecker+Invalid, 3478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 3452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:32:49,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1929 Valid, 11020 Invalid, 3478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 3452 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-20 02:32:49,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17921 states. [2023-12-20 02:32:49,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17921 to 17354. [2023-12-20 02:32:49,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17354 states, 17350 states have (on average 1.1576945244956773) internal successors, (20086), 17353 states have internal predecessors, (20086), 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 02:32:49,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17354 states to 17354 states and 20086 transitions. [2023-12-20 02:32:49,293 INFO L78 Accepts]: Start accepts. Automaton has 17354 states and 20086 transitions. Word has length 174 [2023-12-20 02:32:49,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:32:49,293 INFO L495 AbstractCegarLoop]: Abstraction has 17354 states and 20086 transitions. [2023-12-20 02:32:49,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.565217391304348) internal successors, (174), 22 states have internal predecessors, (174), 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 02:32:49,293 INFO L276 IsEmpty]: Start isEmpty. Operand 17354 states and 20086 transitions. [2023-12-20 02:32:49,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-20 02:32:49,301 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:32:49,301 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:32:49,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2023-12-20 02:32:49,301 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-20 02:32:49,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:32:49,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1543596206, now seen corresponding path program 1 times [2023-12-20 02:32:49,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:32:49,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15354827] [2023-12-20 02:32:49,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:32:49,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:32:49,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat