/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_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 03:04:51,640 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 03:04:51,709 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 03:04:51,713 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 03:04:51,713 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 03:04:51,736 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 03:04:51,737 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 03:04:51,737 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 03:04:51,738 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 03:04:51,741 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 03:04:51,741 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 03:04:51,742 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 03:04:51,742 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 03:04:51,743 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 03:04:51,743 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 03:04:51,744 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 03:04:51,744 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 03:04:51,744 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 03:04:51,744 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 03:04:51,744 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 03:04:51,744 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 03:04:51,745 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 03:04:51,745 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 03:04:51,745 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 03:04:51,745 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 03:04:51,745 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 03:04:51,746 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 03:04:51,746 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 03:04:51,746 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 03:04:51,747 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 03:04:51,747 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 03:04:51,747 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 03:04:51,748 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 03:04:51,748 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 03:04:51,748 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 03:04:51,748 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 03:04:51,748 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 03:04:51,748 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 03:04:51,749 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 03:04:51,749 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 03:04:51,749 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 03:04:51,749 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 03:04:51,749 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 03:04:51,749 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-20 03:04:51,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 03:04:51,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 03:04:51,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 03:04:51,962 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 03:04:51,962 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 03:04:51,963 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2023-12-20 03:04:53,058 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 03:04:53,277 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 03:04:53,278 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2023-12-20 03:04:53,289 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/074b1d6eb/a69be74e36c94be580024be9db0030d0/FLAG6a9529ff1 [2023-12-20 03:04:53,302 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/074b1d6eb/a69be74e36c94be580024be9db0030d0 [2023-12-20 03:04:53,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 03:04:53,305 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 03:04:53,307 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 03:04:53,307 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 03:04:53,310 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 03:04:53,311 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 03:04:53" (1/1) ... [2023-12-20 03:04:53,312 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f54d64f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:04:53, skipping insertion in model container [2023-12-20 03:04:53,312 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 03:04:53" (1/1) ... [2023-12-20 03:04:53,357 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 03:04:53,543 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_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[9868,9881] [2023-12-20 03:04:53,613 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 03:04:53,625 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 03:04:53,672 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_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[9868,9881] [2023-12-20 03:04:53,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 03:04:53,736 INFO L206 MainTranslator]: Completed translation [2023-12-20 03:04:53,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:04:53 WrapperNode [2023-12-20 03:04:53,736 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 03:04:53,737 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 03:04:53,737 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 03:04:53,737 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 03:04:53,742 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:04:53" (1/1) ... [2023-12-20 03:04:53,763 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:04:53" (1/1) ... [2023-12-20 03:04:53,798 INFO L138 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 994 [2023-12-20 03:04:53,798 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 03:04:53,799 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 03:04:53,799 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 03:04:53,799 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 03:04:53,814 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:04:53" (1/1) ... [2023-12-20 03:04:53,814 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:04:53" (1/1) ... [2023-12-20 03:04:53,819 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:04:53" (1/1) ... [2023-12-20 03:04:53,837 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 03:04:53,838 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:04:53" (1/1) ... [2023-12-20 03:04:53,838 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:04:53" (1/1) ... [2023-12-20 03:04:53,848 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:04:53" (1/1) ... [2023-12-20 03:04:53,852 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:04:53" (1/1) ... [2023-12-20 03:04:53,856 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:04:53" (1/1) ... [2023-12-20 03:04:53,858 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:04:53" (1/1) ... [2023-12-20 03:04:53,862 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 03:04:53,863 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 03:04:53,863 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 03:04:53,863 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 03:04:53,863 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:04:53" (1/1) ... [2023-12-20 03:04:53,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 03:04:53,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:04:53,902 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 03:04:53,906 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 03:04:53,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 03:04:53,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 03:04:53,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 03:04:53,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 03:04:54,041 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 03:04:54,043 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 03:04:54,684 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 03:04:54,720 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 03:04:54,720 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-20 03:04:54,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 03:04:54 BoogieIcfgContainer [2023-12-20 03:04:54,720 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 03:04:54,722 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 03:04:54,722 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 03:04:54,724 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 03:04:54,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 03:04:53" (1/3) ... [2023-12-20 03:04:54,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@660f7d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 03:04:54, skipping insertion in model container [2023-12-20 03:04:54,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:04:53" (2/3) ... [2023-12-20 03:04:54,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@660f7d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 03:04:54, skipping insertion in model container [2023-12-20 03:04:54,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 03:04:54" (3/3) ... [2023-12-20 03:04:54,726 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2023-12-20 03:04:54,737 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 03:04:54,738 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 03:04:54,810 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 03:04:54,836 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;@7355f81, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 03:04:54,837 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 03:04:54,841 INFO L276 IsEmpty]: Start isEmpty. Operand has 247 states, 245 states have (on average 1.7306122448979593) internal successors, (424), 246 states have internal predecessors, (424), 0 states have call successors, (0), 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 03:04:54,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-20 03:04:54,859 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:04:54,861 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] [2023-12-20 03:04:54,861 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:04:54,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:04:54,867 INFO L85 PathProgramCache]: Analyzing trace with hash -270289931, now seen corresponding path program 1 times [2023-12-20 03:04:54,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:04:54,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804983384] [2023-12-20 03:04:54,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:04:54,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:04:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:04:55,461 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 03:04:55,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:04:55,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804983384] [2023-12-20 03:04:55,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804983384] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:04:55,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:04:55,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 03:04:55,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359748891] [2023-12-20 03:04:55,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:04:55,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:04:55,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:04:55,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:04:55,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:04:55,500 INFO L87 Difference]: Start difference. First operand has 247 states, 245 states have (on average 1.7306122448979593) internal successors, (424), 246 states have internal predecessors, (424), 0 states have call successors, (0), 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 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 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 03:04:55,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:04:55,838 INFO L93 Difference]: Finished difference Result 1110 states and 1806 transitions. [2023-12-20 03:04:55,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 03:04:55,841 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2023-12-20 03:04:55,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:04:55,859 INFO L225 Difference]: With dead ends: 1110 [2023-12-20 03:04:55,859 INFO L226 Difference]: Without dead ends: 982 [2023-12-20 03:04:55,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:04:55,866 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 4163 mSDsluCounter, 3223 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4163 SdHoareTripleChecker+Valid, 3640 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:04:55,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4163 Valid, 3640 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:04:55,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2023-12-20 03:04:55,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 380. [2023-12-20 03:04:55,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 379 states have (on average 1.5065963060686016) internal successors, (571), 379 states have internal predecessors, (571), 0 states have call successors, (0), 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 03:04:55,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 571 transitions. [2023-12-20 03:04:55,940 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 571 transitions. Word has length 94 [2023-12-20 03:04:55,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:04:55,941 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 571 transitions. [2023-12-20 03:04:55,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 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 03:04:55,941 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 571 transitions. [2023-12-20 03:04:55,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 03:04:55,947 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:04:55,950 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] [2023-12-20 03:04:55,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 03:04:55,950 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:04:55,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:04:55,951 INFO L85 PathProgramCache]: Analyzing trace with hash -115118326, now seen corresponding path program 1 times [2023-12-20 03:04:55,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:04:55,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791759488] [2023-12-20 03:04:55,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:04:55,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:04:56,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:04:56,357 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 03:04:56,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:04:56,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791759488] [2023-12-20 03:04:56,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791759488] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:04:56,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:04:56,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 03:04:56,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128096367] [2023-12-20 03:04:56,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:04:56,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:04:56,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:04:56,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:04:56,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:04:56,364 INFO L87 Difference]: Start difference. First operand 380 states and 571 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 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 03:04:56,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:04:56,619 INFO L93 Difference]: Finished difference Result 1907 states and 2967 transitions. [2023-12-20 03:04:56,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 03:04:56,620 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2023-12-20 03:04:56,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:04:56,625 INFO L225 Difference]: With dead ends: 1907 [2023-12-20 03:04:56,626 INFO L226 Difference]: Without dead ends: 1621 [2023-12-20 03:04:56,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:04:56,629 INFO L413 NwaCegarLoop]: 726 mSDtfsCounter, 1742 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1742 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:04:56,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1742 Valid, 1890 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:04:56,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1621 states. [2023-12-20 03:04:56,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1621 to 1611. [2023-12-20 03:04:56,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1611 states, 1610 states have (on average 1.5527950310559007) internal successors, (2500), 1610 states have internal predecessors, (2500), 0 states have call successors, (0), 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 03:04:56,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1611 states to 1611 states and 2500 transitions. [2023-12-20 03:04:56,661 INFO L78 Accepts]: Start accepts. Automaton has 1611 states and 2500 transitions. Word has length 95 [2023-12-20 03:04:56,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:04:56,662 INFO L495 AbstractCegarLoop]: Abstraction has 1611 states and 2500 transitions. [2023-12-20 03:04:56,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 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 03:04:56,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1611 states and 2500 transitions. [2023-12-20 03:04:56,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-20 03:04:56,665 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:04:56,665 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] [2023-12-20 03:04:56,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 03:04:56,665 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:04:56,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:04:56,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1717125914, now seen corresponding path program 1 times [2023-12-20 03:04:56,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:04:56,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191618440] [2023-12-20 03:04:56,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:04:56,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:04:56,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:04:56,793 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 03:04:56,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:04:56,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191618440] [2023-12-20 03:04:56,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191618440] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:04:56,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:04:56,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:04:56,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394428911] [2023-12-20 03:04:56,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:04:56,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:04:56,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:04:56,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:04:56,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:04:56,797 INFO L87 Difference]: Start difference. First operand 1611 states and 2500 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 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 03:04:57,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:04:57,010 INFO L93 Difference]: Finished difference Result 4339 states and 6807 transitions. [2023-12-20 03:04:57,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:04:57,011 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-20 03:04:57,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:04:57,019 INFO L225 Difference]: With dead ends: 4339 [2023-12-20 03:04:57,019 INFO L226 Difference]: Without dead ends: 2813 [2023-12-20 03:04:57,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:04:57,022 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 1370 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:04:57,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1370 Valid, 344 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:04:57,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2813 states. [2023-12-20 03:04:57,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2813 to 2811. [2023-12-20 03:04:57,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2811 states, 2810 states have (on average 1.5615658362989324) internal successors, (4388), 2810 states have internal predecessors, (4388), 0 states have call successors, (0), 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 03:04:57,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2811 states to 2811 states and 4388 transitions. [2023-12-20 03:04:57,063 INFO L78 Accepts]: Start accepts. Automaton has 2811 states and 4388 transitions. Word has length 96 [2023-12-20 03:04:57,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:04:57,064 INFO L495 AbstractCegarLoop]: Abstraction has 2811 states and 4388 transitions. [2023-12-20 03:04:57,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 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 03:04:57,064 INFO L276 IsEmpty]: Start isEmpty. Operand 2811 states and 4388 transitions. [2023-12-20 03:04:57,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-20 03:04:57,066 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:04:57,066 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] [2023-12-20 03:04:57,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 03:04:57,067 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:04:57,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:04:57,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1085360904, now seen corresponding path program 1 times [2023-12-20 03:04:57,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:04:57,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396575397] [2023-12-20 03:04:57,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:04:57,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:04:57,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:04:57,193 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 03:04:57,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:04:57,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396575397] [2023-12-20 03:04:57,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396575397] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:04:57,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:04:57,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:04:57,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658793538] [2023-12-20 03:04:57,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:04:57,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:04:57,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:04:57,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:04:57,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:04:57,195 INFO L87 Difference]: Start difference. First operand 2811 states and 4388 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 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 03:04:57,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:04:57,415 INFO L93 Difference]: Finished difference Result 7670 states and 12061 transitions. [2023-12-20 03:04:57,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:04:57,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-20 03:04:57,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:04:57,431 INFO L225 Difference]: With dead ends: 7670 [2023-12-20 03:04:57,431 INFO L226 Difference]: Without dead ends: 5011 [2023-12-20 03:04:57,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:04:57,441 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 1300 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1300 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:04:57,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1300 Valid, 348 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:04:57,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5011 states. [2023-12-20 03:04:57,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5011 to 5009. [2023-12-20 03:04:57,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5009 states, 5008 states have (on average 1.564297124600639) internal successors, (7834), 5008 states have internal predecessors, (7834), 0 states have call successors, (0), 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 03:04:57,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5009 states to 5009 states and 7834 transitions. [2023-12-20 03:04:57,536 INFO L78 Accepts]: Start accepts. Automaton has 5009 states and 7834 transitions. Word has length 96 [2023-12-20 03:04:57,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:04:57,537 INFO L495 AbstractCegarLoop]: Abstraction has 5009 states and 7834 transitions. [2023-12-20 03:04:57,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 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 03:04:57,537 INFO L276 IsEmpty]: Start isEmpty. Operand 5009 states and 7834 transitions. [2023-12-20 03:04:57,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-20 03:04:57,539 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:04:57,540 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] [2023-12-20 03:04:57,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 03:04:57,540 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:04:57,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:04:57,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1147996487, now seen corresponding path program 1 times [2023-12-20 03:04:57,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:04:57,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754445027] [2023-12-20 03:04:57,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:04:57,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:04:57,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:04:57,615 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 03:04:57,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:04:57,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754445027] [2023-12-20 03:04:57,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754445027] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:04:57,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:04:57,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:04:57,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390760256] [2023-12-20 03:04:57,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:04:57,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:04:57,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:04:57,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:04:57,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:04:57,617 INFO L87 Difference]: Start difference. First operand 5009 states and 7834 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 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 03:04:57,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:04:57,828 INFO L93 Difference]: Finished difference Result 14187 states and 22318 transitions. [2023-12-20 03:04:57,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:04:57,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-20 03:04:57,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:04:57,854 INFO L225 Difference]: With dead ends: 14187 [2023-12-20 03:04:57,855 INFO L226 Difference]: Without dead ends: 9371 [2023-12-20 03:04:57,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:04:57,863 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 1282 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1282 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:04:57,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1282 Valid, 359 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:04:57,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9371 states. [2023-12-20 03:04:58,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9371 to 9369. [2023-12-20 03:04:58,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9369 states, 9368 states have (on average 1.566609735269001) internal successors, (14676), 9368 states have internal predecessors, (14676), 0 states have call successors, (0), 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 03:04:58,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9369 states to 9369 states and 14676 transitions. [2023-12-20 03:04:58,073 INFO L78 Accepts]: Start accepts. Automaton has 9369 states and 14676 transitions. Word has length 96 [2023-12-20 03:04:58,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:04:58,073 INFO L495 AbstractCegarLoop]: Abstraction has 9369 states and 14676 transitions. [2023-12-20 03:04:58,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 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 03:04:58,073 INFO L276 IsEmpty]: Start isEmpty. Operand 9369 states and 14676 transitions. [2023-12-20 03:04:58,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-20 03:04:58,076 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:04:58,076 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] [2023-12-20 03:04:58,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 03:04:58,076 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:04:58,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:04:58,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1211167465, now seen corresponding path program 1 times [2023-12-20 03:04:58,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:04:58,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898512738] [2023-12-20 03:04:58,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:04:58,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:04:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:04:58,193 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 03:04:58,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:04:58,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898512738] [2023-12-20 03:04:58,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898512738] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:04:58,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:04:58,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:04:58,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575802765] [2023-12-20 03:04:58,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:04:58,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:04:58,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:04:58,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:04:58,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:04:58,195 INFO L87 Difference]: Start difference. First operand 9369 states and 14676 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 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 03:04:58,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:04:58,446 INFO L93 Difference]: Finished difference Result 27465 states and 43126 transitions. [2023-12-20 03:04:58,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:04:58,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-20 03:04:58,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:04:58,496 INFO L225 Difference]: With dead ends: 27465 [2023-12-20 03:04:58,497 INFO L226 Difference]: Without dead ends: 18211 [2023-12-20 03:04:58,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:04:58,513 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 1320 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1320 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:04:58,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1320 Valid, 346 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:04:58,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18211 states. [2023-12-20 03:04:58,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18211 to 18209. [2023-12-20 03:04:58,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18209 states, 18208 states have (on average 1.5629942882249561) internal successors, (28459), 18208 states have internal predecessors, (28459), 0 states have call successors, (0), 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 03:04:58,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18209 states to 18209 states and 28459 transitions. [2023-12-20 03:04:58,926 INFO L78 Accepts]: Start accepts. Automaton has 18209 states and 28459 transitions. Word has length 96 [2023-12-20 03:04:58,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:04:58,926 INFO L495 AbstractCegarLoop]: Abstraction has 18209 states and 28459 transitions. [2023-12-20 03:04:58,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 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 03:04:58,927 INFO L276 IsEmpty]: Start isEmpty. Operand 18209 states and 28459 transitions. [2023-12-20 03:04:58,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-20 03:04:58,930 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:04:58,930 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] [2023-12-20 03:04:58,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 03:04:58,931 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:04:58,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:04:58,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1694311819, now seen corresponding path program 1 times [2023-12-20 03:04:58,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:04:58,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010290034] [2023-12-20 03:04:58,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:04:58,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:04:58,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:04:59,020 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 03:04:59,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:04:59,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010290034] [2023-12-20 03:04:59,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010290034] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:04:59,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:04:59,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:04:59,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075531302] [2023-12-20 03:04:59,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:04:59,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:04:59,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:04:59,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:04:59,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:04:59,022 INFO L87 Difference]: Start difference. First operand 18209 states and 28459 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 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 03:04:59,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:04:59,390 INFO L93 Difference]: Finished difference Result 54166 states and 84768 transitions. [2023-12-20 03:04:59,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:04:59,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2023-12-20 03:04:59,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:04:59,454 INFO L225 Difference]: With dead ends: 54166 [2023-12-20 03:04:59,454 INFO L226 Difference]: Without dead ends: 36019 [2023-12-20 03:04:59,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:04:59,476 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 1374 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1374 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:04:59,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1374 Valid, 344 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:04:59,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36019 states. [2023-12-20 03:04:59,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36019 to 36017. [2023-12-20 03:05:00,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36017 states, 36016 states have (on average 1.556419369169258) internal successors, (56056), 36016 states have internal predecessors, (56056), 0 states have call successors, (0), 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 03:05:00,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36017 states to 36017 states and 56056 transitions. [2023-12-20 03:05:00,073 INFO L78 Accepts]: Start accepts. Automaton has 36017 states and 56056 transitions. Word has length 96 [2023-12-20 03:05:00,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:05:00,073 INFO L495 AbstractCegarLoop]: Abstraction has 36017 states and 56056 transitions. [2023-12-20 03:05:00,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 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 03:05:00,073 INFO L276 IsEmpty]: Start isEmpty. Operand 36017 states and 56056 transitions. [2023-12-20 03:05:00,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:05:00,081 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:05:00,081 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] [2023-12-20 03:05:00,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 03:05:00,082 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:05:00,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:05:00,082 INFO L85 PathProgramCache]: Analyzing trace with hash 127652846, now seen corresponding path program 1 times [2023-12-20 03:05:00,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:05:00,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874469459] [2023-12-20 03:05:00,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:05:00,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:05:00,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:05:00,166 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 03:05:00,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:05:00,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874469459] [2023-12-20 03:05:00,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874469459] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:05:00,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:05:00,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:05:00,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339206212] [2023-12-20 03:05:00,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:05:00,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:05:00,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:05:00,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:05:00,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:05:00,168 INFO L87 Difference]: Start difference. First operand 36017 states and 56056 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 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 03:05:00,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:05:00,919 INFO L93 Difference]: Finished difference Result 102357 states and 159436 transitions. [2023-12-20 03:05:00,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:05:00,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2023-12-20 03:05:00,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:05:01,120 INFO L225 Difference]: With dead ends: 102357 [2023-12-20 03:05:01,120 INFO L226 Difference]: Without dead ends: 66418 [2023-12-20 03:05:01,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:05:01,191 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 1407 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1407 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:05:01,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1407 Valid, 347 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:05:01,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66418 states. [2023-12-20 03:05:02,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66418 to 66416. [2023-12-20 03:05:02,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66416 states, 66415 states have (on average 1.5520891364902507) internal successors, (103082), 66415 states have internal predecessors, (103082), 0 states have call successors, (0), 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 03:05:02,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66416 states to 66416 states and 103082 transitions. [2023-12-20 03:05:02,214 INFO L78 Accepts]: Start accepts. Automaton has 66416 states and 103082 transitions. Word has length 97 [2023-12-20 03:05:02,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:05:02,214 INFO L495 AbstractCegarLoop]: Abstraction has 66416 states and 103082 transitions. [2023-12-20 03:05:02,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 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 03:05:02,215 INFO L276 IsEmpty]: Start isEmpty. Operand 66416 states and 103082 transitions. [2023-12-20 03:05:02,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 03:05:02,226 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:05:02,226 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] [2023-12-20 03:05:02,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 03:05:02,226 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:05:02,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:05:02,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1766540066, now seen corresponding path program 1 times [2023-12-20 03:05:02,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:05:02,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829491629] [2023-12-20 03:05:02,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:05:02,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:05:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:05:02,535 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 03:05:02,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:05:02,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829491629] [2023-12-20 03:05:02,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829491629] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:05:02,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:05:02,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 03:05:02,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151096310] [2023-12-20 03:05:02,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:05:02,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:05:02,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:05:02,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:05:02,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:05:02,537 INFO L87 Difference]: Start difference. First operand 66416 states and 103082 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 0 states have call successors, (0), 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 03:05:02,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:05:02,960 INFO L93 Difference]: Finished difference Result 132466 states and 204939 transitions. [2023-12-20 03:05:02,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 03:05:02,961 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2023-12-20 03:05:02,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:05:03,338 INFO L225 Difference]: With dead ends: 132466 [2023-12-20 03:05:03,338 INFO L226 Difference]: Without dead ends: 132464 [2023-12-20 03:05:03,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-20 03:05:03,395 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 346 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:05:03,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 1420 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:05:03,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132464 states. [2023-12-20 03:05:04,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132464 to 67824. [2023-12-20 03:05:04,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67824 states, 67823 states have (on average 1.5406278106247144) internal successors, (104490), 67823 states have internal predecessors, (104490), 0 states have call successors, (0), 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 03:05:04,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67824 states to 67824 states and 104490 transitions. [2023-12-20 03:05:04,721 INFO L78 Accepts]: Start accepts. Automaton has 67824 states and 104490 transitions. Word has length 97 [2023-12-20 03:05:04,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:05:04,723 INFO L495 AbstractCegarLoop]: Abstraction has 67824 states and 104490 transitions. [2023-12-20 03:05:04,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 0 states have call successors, (0), 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 03:05:04,723 INFO L276 IsEmpty]: Start isEmpty. Operand 67824 states and 104490 transitions. [2023-12-20 03:05:04,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 03:05:04,737 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:05:04,737 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] [2023-12-20 03:05:04,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 03:05:04,737 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:05:04,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:05:04,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1398905629, now seen corresponding path program 1 times [2023-12-20 03:05:04,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:05:04,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527297298] [2023-12-20 03:05:04,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:05:04,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:05:04,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:05:05,198 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 03:05:05,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:05:05,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527297298] [2023-12-20 03:05:05,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527297298] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:05:05,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:05:05,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 03:05:05,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971588211] [2023-12-20 03:05:05,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:05:05,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 03:05:05,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:05:05,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 03:05:05,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-20 03:05:05,200 INFO L87 Difference]: Start difference. First operand 67824 states and 104490 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 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 03:05:07,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:05:07,147 INFO L93 Difference]: Finished difference Result 306926 states and 469420 transitions. [2023-12-20 03:05:07,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-20 03:05:07,147 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2023-12-20 03:05:07,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:05:07,669 INFO L225 Difference]: With dead ends: 306926 [2023-12-20 03:05:07,669 INFO L226 Difference]: Without dead ends: 262079 [2023-12-20 03:05:07,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=177, Invalid=525, Unknown=0, NotChecked=0, Total=702 [2023-12-20 03:05:08,000 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 2321 mSDsluCounter, 1318 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2321 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 1249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:05:08,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2321 Valid, 1641 Invalid, 1249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 03:05:08,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262079 states. [2023-12-20 03:05:10,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262079 to 68249. [2023-12-20 03:05:10,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68249 states, 68248 states have (on average 1.53957625131872) internal successors, (105073), 68248 states have internal predecessors, (105073), 0 states have call successors, (0), 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 03:05:10,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68249 states to 68249 states and 105073 transitions. [2023-12-20 03:05:10,313 INFO L78 Accepts]: Start accepts. Automaton has 68249 states and 105073 transitions. Word has length 98 [2023-12-20 03:05:10,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:05:10,313 INFO L495 AbstractCegarLoop]: Abstraction has 68249 states and 105073 transitions. [2023-12-20 03:05:10,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 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 03:05:10,313 INFO L276 IsEmpty]: Start isEmpty. Operand 68249 states and 105073 transitions. [2023-12-20 03:05:10,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 03:05:10,326 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:05:10,326 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] [2023-12-20 03:05:10,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 03:05:10,326 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:05:10,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:05:10,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1530544989, now seen corresponding path program 1 times [2023-12-20 03:05:10,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:05:10,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385176702] [2023-12-20 03:05:10,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:05:10,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:05:10,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:05:10,564 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 03:05:10,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:05:10,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385176702] [2023-12-20 03:05:10,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385176702] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:05:10,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:05:10,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 03:05:10,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592790316] [2023-12-20 03:05:10,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:05:10,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 03:05:10,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:05:10,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 03:05:10,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-20 03:05:10,566 INFO L87 Difference]: Start difference. First operand 68249 states and 105073 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 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 03:05:12,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:05:12,621 INFO L93 Difference]: Finished difference Result 210178 states and 320483 transitions. [2023-12-20 03:05:12,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-20 03:05:12,622 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2023-12-20 03:05:12,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:05:12,927 INFO L225 Difference]: With dead ends: 210178 [2023-12-20 03:05:12,927 INFO L226 Difference]: Without dead ends: 190016 [2023-12-20 03:05:12,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=201, Invalid=611, Unknown=0, NotChecked=0, Total=812 [2023-12-20 03:05:12,975 INFO L413 NwaCegarLoop]: 408 mSDtfsCounter, 2124 mSDsluCounter, 1635 mSDsCounter, 0 mSdLazyCounter, 1544 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2124 SdHoareTripleChecker+Valid, 2043 SdHoareTripleChecker+Invalid, 1553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:05:12,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2124 Valid, 2043 Invalid, 1553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1544 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 03:05:13,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190016 states. [2023-12-20 03:05:14,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190016 to 69218. [2023-12-20 03:05:14,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69218 states, 69217 states have (on average 1.5386537989222302) internal successors, (106501), 69217 states have internal predecessors, (106501), 0 states have call successors, (0), 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 03:05:14,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69218 states to 69218 states and 106501 transitions. [2023-12-20 03:05:14,895 INFO L78 Accepts]: Start accepts. Automaton has 69218 states and 106501 transitions. Word has length 98 [2023-12-20 03:05:14,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:05:14,895 INFO L495 AbstractCegarLoop]: Abstraction has 69218 states and 106501 transitions. [2023-12-20 03:05:14,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 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 03:05:14,895 INFO L276 IsEmpty]: Start isEmpty. Operand 69218 states and 106501 transitions. [2023-12-20 03:05:14,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 03:05:14,919 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:05:14,919 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] [2023-12-20 03:05:14,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 03:05:14,919 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:05:14,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:05:14,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1997460611, now seen corresponding path program 1 times [2023-12-20 03:05:14,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:05:14,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724932957] [2023-12-20 03:05:14,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:05:14,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:05:14,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:05:15,138 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 03:05:15,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:05:15,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724932957] [2023-12-20 03:05:15,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724932957] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:05:15,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:05:15,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 03:05:15,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204619541] [2023-12-20 03:05:15,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:05:15,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 03:05:15,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:05:15,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 03:05:15,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-20 03:05:15,140 INFO L87 Difference]: Start difference. First operand 69218 states and 106501 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 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 03:05:16,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:05:16,997 INFO L93 Difference]: Finished difference Result 173411 states and 265259 transitions. [2023-12-20 03:05:16,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-20 03:05:16,998 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2023-12-20 03:05:16,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:05:17,271 INFO L225 Difference]: With dead ends: 173411 [2023-12-20 03:05:17,271 INFO L226 Difference]: Without dead ends: 166004 [2023-12-20 03:05:17,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2023-12-20 03:05:17,295 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 2308 mSDsluCounter, 1543 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2308 SdHoareTripleChecker+Valid, 1911 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:05:17,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2308 Valid, 1911 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:05:17,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166004 states. [2023-12-20 03:05:18,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166004 to 69218. [2023-12-20 03:05:18,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69218 states, 69217 states have (on average 1.5385960096508082) internal successors, (106497), 69217 states have internal predecessors, (106497), 0 states have call successors, (0), 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 03:05:18,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69218 states to 69218 states and 106497 transitions. [2023-12-20 03:05:18,725 INFO L78 Accepts]: Start accepts. Automaton has 69218 states and 106497 transitions. Word has length 98 [2023-12-20 03:05:18,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:05:18,740 INFO L495 AbstractCegarLoop]: Abstraction has 69218 states and 106497 transitions. [2023-12-20 03:05:18,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 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 03:05:18,740 INFO L276 IsEmpty]: Start isEmpty. Operand 69218 states and 106497 transitions. [2023-12-20 03:05:18,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 03:05:18,766 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:05:18,766 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] [2023-12-20 03:05:18,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 03:05:18,766 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:05:18,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:05:18,767 INFO L85 PathProgramCache]: Analyzing trace with hash 247796541, now seen corresponding path program 1 times [2023-12-20 03:05:18,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:05:18,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638959945] [2023-12-20 03:05:18,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:05:18,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:05:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:05:18,996 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 03:05:18,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:05:18,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638959945] [2023-12-20 03:05:18,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638959945] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:05:18,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:05:18,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 03:05:18,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265407913] [2023-12-20 03:05:18,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:05:18,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 03:05:18,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:05:18,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 03:05:18,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-20 03:05:18,998 INFO L87 Difference]: Start difference. First operand 69218 states and 106497 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 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 03:05:21,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:05:21,242 INFO L93 Difference]: Finished difference Result 267627 states and 408991 transitions. [2023-12-20 03:05:21,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-20 03:05:21,242 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2023-12-20 03:05:21,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:05:21,712 INFO L225 Difference]: With dead ends: 267627 [2023-12-20 03:05:21,712 INFO L226 Difference]: Without dead ends: 234611 [2023-12-20 03:05:21,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=177, Invalid=525, Unknown=0, NotChecked=0, Total=702 [2023-12-20 03:05:21,795 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 2427 mSDsluCounter, 1485 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2427 SdHoareTripleChecker+Valid, 1840 SdHoareTripleChecker+Invalid, 1417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:05:21,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2427 Valid, 1840 Invalid, 1417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1408 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:05:21,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234611 states. [2023-12-20 03:05:24,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234611 to 70490. [2023-12-20 03:05:24,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70490 states, 70489 states have (on average 1.5356296727148917) internal successors, (108245), 70489 states have internal predecessors, (108245), 0 states have call successors, (0), 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 03:05:24,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70490 states to 70490 states and 108245 transitions. [2023-12-20 03:05:24,461 INFO L78 Accepts]: Start accepts. Automaton has 70490 states and 108245 transitions. Word has length 98 [2023-12-20 03:05:24,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:05:24,462 INFO L495 AbstractCegarLoop]: Abstraction has 70490 states and 108245 transitions. [2023-12-20 03:05:24,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 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 03:05:24,462 INFO L276 IsEmpty]: Start isEmpty. Operand 70490 states and 108245 transitions. [2023-12-20 03:05:24,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 03:05:24,483 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:05:24,483 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] [2023-12-20 03:05:24,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-20 03:05:24,485 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:05:24,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:05:24,486 INFO L85 PathProgramCache]: Analyzing trace with hash -622863619, now seen corresponding path program 1 times [2023-12-20 03:05:24,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:05:24,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456663364] [2023-12-20 03:05:24,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:05:24,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:05:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:05:24,725 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 03:05:24,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:05:24,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456663364] [2023-12-20 03:05:24,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456663364] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:05:24,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:05:24,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 03:05:24,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464746588] [2023-12-20 03:05:24,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:05:24,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 03:05:24,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:05:24,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 03:05:24,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-20 03:05:24,727 INFO L87 Difference]: Start difference. First operand 70490 states and 108245 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 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 03:05:26,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:05:26,932 INFO L93 Difference]: Finished difference Result 356384 states and 543423 transitions. [2023-12-20 03:05:26,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-20 03:05:26,933 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2023-12-20 03:05:26,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:05:27,602 INFO L225 Difference]: With dead ends: 356384 [2023-12-20 03:05:27,603 INFO L226 Difference]: Without dead ends: 299508 [2023-12-20 03:05:27,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=177, Invalid=525, Unknown=0, NotChecked=0, Total=702 [2023-12-20 03:05:27,720 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 2153 mSDsluCounter, 1505 mSDsCounter, 0 mSdLazyCounter, 1454 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2153 SdHoareTripleChecker+Valid, 1897 SdHoareTripleChecker+Invalid, 1463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:05:27,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2153 Valid, 1897 Invalid, 1463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1454 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:05:27,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299508 states. [2023-12-20 03:05:30,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299508 to 71372. [2023-12-20 03:05:30,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71372 states, 71371 states have (on average 1.5326533185747713) internal successors, (109387), 71371 states have internal predecessors, (109387), 0 states have call successors, (0), 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 03:05:30,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71372 states to 71372 states and 109387 transitions. [2023-12-20 03:05:30,473 INFO L78 Accepts]: Start accepts. Automaton has 71372 states and 109387 transitions. Word has length 98 [2023-12-20 03:05:30,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:05:30,474 INFO L495 AbstractCegarLoop]: Abstraction has 71372 states and 109387 transitions. [2023-12-20 03:05:30,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 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 03:05:30,474 INFO L276 IsEmpty]: Start isEmpty. Operand 71372 states and 109387 transitions. [2023-12-20 03:05:30,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 03:05:30,488 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:05:30,488 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] [2023-12-20 03:05:30,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-20 03:05:30,488 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:05:30,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:05:30,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1377703921, now seen corresponding path program 1 times [2023-12-20 03:05:30,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:05:30,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044680054] [2023-12-20 03:05:30,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:05:30,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:05:30,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:05:30,698 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 03:05:30,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:05:30,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044680054] [2023-12-20 03:05:30,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044680054] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:05:30,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:05:30,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 03:05:30,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784077658] [2023-12-20 03:05:30,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:05:30,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 03:05:30,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:05:30,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 03:05:30,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-20 03:05:30,700 INFO L87 Difference]: Start difference. First operand 71372 states and 109387 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 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 03:05:33,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:05:33,119 INFO L93 Difference]: Finished difference Result 356593 states and 545172 transitions. [2023-12-20 03:05:33,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-20 03:05:33,120 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2023-12-20 03:05:33,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:05:33,607 INFO L225 Difference]: With dead ends: 356593 [2023-12-20 03:05:33,607 INFO L226 Difference]: Without dead ends: 288659 [2023-12-20 03:05:33,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=143, Invalid=457, Unknown=0, NotChecked=0, Total=600 [2023-12-20 03:05:33,700 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 2194 mSDsluCounter, 2416 mSDsCounter, 0 mSdLazyCounter, 2063 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2194 SdHoareTripleChecker+Valid, 2828 SdHoareTripleChecker+Invalid, 2069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:05:33,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2194 Valid, 2828 Invalid, 2069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2063 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-20 03:05:33,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288659 states. [2023-12-20 03:05:36,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288659 to 72164. [2023-12-20 03:05:36,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72164 states, 72163 states have (on average 1.5285949863503459) internal successors, (110308), 72163 states have internal predecessors, (110308), 0 states have call successors, (0), 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 03:05:36,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72164 states to 72164 states and 110308 transitions. [2023-12-20 03:05:36,487 INFO L78 Accepts]: Start accepts. Automaton has 72164 states and 110308 transitions. Word has length 99 [2023-12-20 03:05:36,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:05:36,487 INFO L495 AbstractCegarLoop]: Abstraction has 72164 states and 110308 transitions. [2023-12-20 03:05:36,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 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 03:05:36,487 INFO L276 IsEmpty]: Start isEmpty. Operand 72164 states and 110308 transitions. [2023-12-20 03:05:36,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 03:05:36,499 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:05:36,499 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] [2023-12-20 03:05:36,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-20 03:05:36,500 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:05:36,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:05:36,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1969670899, now seen corresponding path program 1 times [2023-12-20 03:05:36,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:05:36,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059783085] [2023-12-20 03:05:36,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:05:36,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:05:36,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:05:36,679 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 03:05:36,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:05:36,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059783085] [2023-12-20 03:05:36,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059783085] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:05:36,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:05:36,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:05:36,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274897746] [2023-12-20 03:05:36,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:05:36,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 03:05:36,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:05:36,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 03:05:36,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 03:05:36,681 INFO L87 Difference]: Start difference. First operand 72164 states and 110308 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 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 03:05:37,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:05:37,480 INFO L93 Difference]: Finished difference Result 196904 states and 301830 transitions. [2023-12-20 03:05:37,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 03:05:37,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2023-12-20 03:05:37,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:05:37,721 INFO L225 Difference]: With dead ends: 196904 [2023-12-20 03:05:37,721 INFO L226 Difference]: Without dead ends: 130854 [2023-12-20 03:05:37,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 03:05:37,784 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 235 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:05:37,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 845 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:05:37,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130854 states. [2023-12-20 03:05:39,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130854 to 130180. [2023-12-20 03:05:39,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130180 states, 130179 states have (on average 1.5206446508269382) internal successors, (197956), 130179 states have internal predecessors, (197956), 0 states have call successors, (0), 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 03:05:39,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130180 states to 130180 states and 197956 transitions. [2023-12-20 03:05:39,983 INFO L78 Accepts]: Start accepts. Automaton has 130180 states and 197956 transitions. Word has length 99 [2023-12-20 03:05:39,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:05:39,983 INFO L495 AbstractCegarLoop]: Abstraction has 130180 states and 197956 transitions. [2023-12-20 03:05:39,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 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 03:05:39,984 INFO L276 IsEmpty]: Start isEmpty. Operand 130180 states and 197956 transitions. [2023-12-20 03:05:39,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 03:05:39,993 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:05:39,993 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] [2023-12-20 03:05:39,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-20 03:05:39,994 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:05:39,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:05:39,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1174130536, now seen corresponding path program 1 times [2023-12-20 03:05:39,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:05:39,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882558871] [2023-12-20 03:05:39,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:05:39,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:05:40,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:05:40,038 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 03:05:40,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:05:40,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882558871] [2023-12-20 03:05:40,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882558871] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:05:40,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:05:40,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:05:40,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066077939] [2023-12-20 03:05:40,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:05:40,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:05:40,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:05:40,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:05:40,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:05:40,040 INFO L87 Difference]: Start difference. First operand 130180 states and 197956 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 03:05:41,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:05:41,020 INFO L93 Difference]: Finished difference Result 236785 states and 360678 transitions. [2023-12-20 03:05:41,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:05:41,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2023-12-20 03:05:41,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:05:41,344 INFO L225 Difference]: With dead ends: 236785 [2023-12-20 03:05:41,344 INFO L226 Difference]: Without dead ends: 161511 [2023-12-20 03:05:41,451 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 03:05:41,451 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 221 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:05:41,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 660 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:05:41,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161511 states. [2023-12-20 03:05:43,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161511 to 160437. [2023-12-20 03:05:43,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160437 states, 160436 states have (on average 1.5062704131242364) internal successors, (241660), 160436 states have internal predecessors, (241660), 0 states have call successors, (0), 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 03:05:44,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160437 states to 160437 states and 241660 transitions. [2023-12-20 03:05:44,131 INFO L78 Accepts]: Start accepts. Automaton has 160437 states and 241660 transitions. Word has length 99 [2023-12-20 03:05:44,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:05:44,131 INFO L495 AbstractCegarLoop]: Abstraction has 160437 states and 241660 transitions. [2023-12-20 03:05:44,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 03:05:44,132 INFO L276 IsEmpty]: Start isEmpty. Operand 160437 states and 241660 transitions. [2023-12-20 03:05:44,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 03:05:44,143 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:05:44,143 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] [2023-12-20 03:05:44,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-20 03:05:44,143 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:05:44,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:05:44,144 INFO L85 PathProgramCache]: Analyzing trace with hash 999860246, now seen corresponding path program 1 times [2023-12-20 03:05:44,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:05:44,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786428723] [2023-12-20 03:05:44,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:05:44,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:05:44,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:05:44,183 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 03:05:44,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:05:44,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786428723] [2023-12-20 03:05:44,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786428723] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:05:44,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:05:44,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:05:44,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032263034] [2023-12-20 03:05:44,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:05:44,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:05:44,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:05:44,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:05:44,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:05:44,184 INFO L87 Difference]: Start difference. First operand 160437 states and 241660 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 03:05:45,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:05:45,219 INFO L93 Difference]: Finished difference Result 213824 states and 321779 transitions. [2023-12-20 03:05:45,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:05:45,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2023-12-20 03:05:45,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:05:45,635 INFO L225 Difference]: With dead ends: 213824 [2023-12-20 03:05:45,636 INFO L226 Difference]: Without dead ends: 175622 [2023-12-20 03:05:45,723 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 03:05:45,725 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 202 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:05:45,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 663 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:05:45,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175622 states. [2023-12-20 03:05:47,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175622 to 158036. [2023-12-20 03:05:47,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158036 states, 158035 states have (on average 1.488967633752017) internal successors, (235309), 158035 states have internal predecessors, (235309), 0 states have call successors, (0), 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 03:05:48,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158036 states to 158036 states and 235309 transitions. [2023-12-20 03:05:48,050 INFO L78 Accepts]: Start accepts. Automaton has 158036 states and 235309 transitions. Word has length 99 [2023-12-20 03:05:48,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:05:48,051 INFO L495 AbstractCegarLoop]: Abstraction has 158036 states and 235309 transitions. [2023-12-20 03:05:48,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 03:05:48,051 INFO L276 IsEmpty]: Start isEmpty. Operand 158036 states and 235309 transitions. [2023-12-20 03:05:48,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 03:05:48,080 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:05:48,081 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] [2023-12-20 03:05:48,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-20 03:05:48,081 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:05:48,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:05:48,082 INFO L85 PathProgramCache]: Analyzing trace with hash 742602727, now seen corresponding path program 1 times [2023-12-20 03:05:48,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:05:48,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743094597] [2023-12-20 03:05:48,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:05:48,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:05:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:05:48,153 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 03:05:48,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:05:48,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743094597] [2023-12-20 03:05:48,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743094597] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:05:48,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:05:48,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:05:48,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373917272] [2023-12-20 03:05:48,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:05:48,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:05:48,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:05:48,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:05:48,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:05:48,156 INFO L87 Difference]: Start difference. First operand 158036 states and 235309 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 03:05:49,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:05:49,445 INFO L93 Difference]: Finished difference Result 367122 states and 547392 transitions. [2023-12-20 03:05:49,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:05:49,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2023-12-20 03:05:49,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:05:50,191 INFO L225 Difference]: With dead ends: 367122 [2023-12-20 03:05:50,191 INFO L226 Difference]: Without dead ends: 222696 [2023-12-20 03:05:50,239 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 03:05:50,256 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 246 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:05:50,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 665 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:05:50,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222696 states. [2023-12-20 03:05:52,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222696 to 155996. [2023-12-20 03:05:52,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155996 states, 155995 states have (on average 1.4775473572870925) internal successors, (230490), 155995 states have internal predecessors, (230490), 0 states have call successors, (0), 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 03:05:52,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155996 states to 155996 states and 230490 transitions. [2023-12-20 03:05:52,678 INFO L78 Accepts]: Start accepts. Automaton has 155996 states and 230490 transitions. Word has length 99 [2023-12-20 03:05:52,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:05:52,678 INFO L495 AbstractCegarLoop]: Abstraction has 155996 states and 230490 transitions. [2023-12-20 03:05:52,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 03:05:52,679 INFO L276 IsEmpty]: Start isEmpty. Operand 155996 states and 230490 transitions. [2023-12-20 03:05:52,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 03:05:52,690 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:05:52,690 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] [2023-12-20 03:05:52,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-20 03:05:52,690 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:05:52,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:05:52,690 INFO L85 PathProgramCache]: Analyzing trace with hash -661235097, now seen corresponding path program 1 times [2023-12-20 03:05:52,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:05:52,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590276003] [2023-12-20 03:05:52,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:05:52,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:05:52,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:05:52,748 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 03:05:52,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:05:52,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590276003] [2023-12-20 03:05:52,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590276003] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:05:52,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:05:52,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:05:52,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193180484] [2023-12-20 03:05:52,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:05:52,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:05:52,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:05:52,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:05:52,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:05:52,749 INFO L87 Difference]: Start difference. First operand 155996 states and 230490 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 03:05:54,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:05:54,057 INFO L93 Difference]: Finished difference Result 234389 states and 346505 transitions. [2023-12-20 03:05:54,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:05:54,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2023-12-20 03:05:54,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:05:54,345 INFO L225 Difference]: With dead ends: 234389 [2023-12-20 03:05:54,346 INFO L226 Difference]: Without dead ends: 165755 [2023-12-20 03:05:54,421 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 03:05:54,422 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 207 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:05:54,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 672 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:05:54,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165755 states. [2023-12-20 03:05:56,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165755 to 164537. [2023-12-20 03:05:56,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164537 states, 164536 states have (on average 1.4570853794914183) internal successors, (239743), 164536 states have internal predecessors, (239743), 0 states have call successors, (0), 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 03:05:56,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164537 states to 164537 states and 239743 transitions. [2023-12-20 03:05:56,990 INFO L78 Accepts]: Start accepts. Automaton has 164537 states and 239743 transitions. Word has length 99 [2023-12-20 03:05:56,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:05:56,990 INFO L495 AbstractCegarLoop]: Abstraction has 164537 states and 239743 transitions. [2023-12-20 03:05:56,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 03:05:56,990 INFO L276 IsEmpty]: Start isEmpty. Operand 164537 states and 239743 transitions. [2023-12-20 03:05:57,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 03:05:57,001 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:05:57,001 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] [2023-12-20 03:05:57,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-20 03:05:57,002 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:05:57,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:05:57,002 INFO L85 PathProgramCache]: Analyzing trace with hash -2085468793, now seen corresponding path program 1 times [2023-12-20 03:05:57,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:05:57,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235267566] [2023-12-20 03:05:57,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:05:57,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:05:57,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:05:57,107 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 03:05:57,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:05:57,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235267566] [2023-12-20 03:05:57,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235267566] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:05:57,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:05:57,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:05:57,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337297851] [2023-12-20 03:05:57,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:05:57,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:05:57,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:05:57,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:05:57,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:05:57,110 INFO L87 Difference]: Start difference. First operand 164537 states and 239743 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 03:05:58,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:05:58,338 INFO L93 Difference]: Finished difference Result 338583 states and 493317 transitions. [2023-12-20 03:05:58,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:05:58,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2023-12-20 03:05:58,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:05:58,735 INFO L225 Difference]: With dead ends: 338583 [2023-12-20 03:05:58,735 INFO L226 Difference]: Without dead ends: 207509 [2023-12-20 03:05:58,827 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 03:05:58,828 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 225 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:05:58,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 767 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:05:58,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207509 states. [2023-12-20 03:06:01,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207509 to 206147. [2023-12-20 03:06:01,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206147 states, 206146 states have (on average 1.435337091187799) internal successors, (295889), 206146 states have internal predecessors, (295889), 0 states have call successors, (0), 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 03:06:01,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206147 states to 206147 states and 295889 transitions. [2023-12-20 03:06:01,809 INFO L78 Accepts]: Start accepts. Automaton has 206147 states and 295889 transitions. Word has length 99 [2023-12-20 03:06:01,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:06:01,809 INFO L495 AbstractCegarLoop]: Abstraction has 206147 states and 295889 transitions. [2023-12-20 03:06:01,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 03:06:01,810 INFO L276 IsEmpty]: Start isEmpty. Operand 206147 states and 295889 transitions. [2023-12-20 03:06:01,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 03:06:01,821 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:06:01,821 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] [2023-12-20 03:06:01,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-20 03:06:01,822 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:06:01,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:06:01,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1138234922, now seen corresponding path program 1 times [2023-12-20 03:06:01,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:06:01,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167580202] [2023-12-20 03:06:01,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:06:01,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:06:01,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:06:01,858 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 03:06:01,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:06:01,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167580202] [2023-12-20 03:06:01,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167580202] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:06:01,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:06:01,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:06:01,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884718395] [2023-12-20 03:06:01,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:06:01,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:06:01,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:06:01,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:06:01,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:06:01,860 INFO L87 Difference]: Start difference. First operand 206147 states and 295889 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 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 03:06:03,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:06:03,795 INFO L93 Difference]: Finished difference Result 455148 states and 651748 transitions. [2023-12-20 03:06:03,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:06:03,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2023-12-20 03:06:03,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:06:04,319 INFO L225 Difference]: With dead ends: 455148 [2023-12-20 03:06:04,319 INFO L226 Difference]: Without dead ends: 262766 [2023-12-20 03:06:04,436 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 03:06:04,437 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 238 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:06:04,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 648 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:06:04,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262766 states. [2023-12-20 03:06:07,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262766 to 261332. [2023-12-20 03:06:07,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261332 states, 261331 states have (on average 1.4094845234587554) internal successors, (368342), 261331 states have internal predecessors, (368342), 0 states have call successors, (0), 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 03:06:09,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261332 states to 261332 states and 368342 transitions. [2023-12-20 03:06:09,005 INFO L78 Accepts]: Start accepts. Automaton has 261332 states and 368342 transitions. Word has length 100 [2023-12-20 03:06:09,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:06:09,005 INFO L495 AbstractCegarLoop]: Abstraction has 261332 states and 368342 transitions. [2023-12-20 03:06:09,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 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 03:06:09,005 INFO L276 IsEmpty]: Start isEmpty. Operand 261332 states and 368342 transitions. [2023-12-20 03:06:09,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 03:06:09,015 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:06:09,015 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] [2023-12-20 03:06:09,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-20 03:06:09,015 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:06:09,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:06:09,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1838738447, now seen corresponding path program 1 times [2023-12-20 03:06:09,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:06:09,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19695494] [2023-12-20 03:06:09,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:06:09,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:06:09,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:06:09,225 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 03:06:09,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:06:09,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19695494] [2023-12-20 03:06:09,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19695494] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:06:09,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:06:09,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 03:06:09,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500367725] [2023-12-20 03:06:09,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:06:09,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:06:09,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:06:09,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:06:09,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:06:09,227 INFO L87 Difference]: Start difference. First operand 261332 states and 368342 transitions. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 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 03:06:12,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:06:12,785 INFO L93 Difference]: Finished difference Result 760613 states and 1080653 transitions. [2023-12-20 03:06:12,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 03:06:12,800 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2023-12-20 03:06:12,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:06:14,391 INFO L225 Difference]: With dead ends: 760613 [2023-12-20 03:06:14,391 INFO L226 Difference]: Without dead ends: 654303 [2023-12-20 03:06:14,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:06:14,536 INFO L413 NwaCegarLoop]: 524 mSDtfsCounter, 2792 mSDsluCounter, 1734 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2792 SdHoareTripleChecker+Valid, 2258 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:06:14,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2792 Valid, 2258 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:06:15,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654303 states. [2023-12-20 03:06:20,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654303 to 366620. [2023-12-20 03:06:21,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366620 states, 366619 states have (on average 1.410060580602751) internal successors, (516955), 366619 states have internal predecessors, (516955), 0 states have call successors, (0), 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 03:06:22,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366620 states to 366620 states and 516955 transitions. [2023-12-20 03:06:22,346 INFO L78 Accepts]: Start accepts. Automaton has 366620 states and 516955 transitions. Word has length 100 [2023-12-20 03:06:22,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:06:22,346 INFO L495 AbstractCegarLoop]: Abstraction has 366620 states and 516955 transitions. [2023-12-20 03:06:22,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 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 03:06:22,346 INFO L276 IsEmpty]: Start isEmpty. Operand 366620 states and 516955 transitions. [2023-12-20 03:06:22,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 03:06:22,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:06:22,357 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] [2023-12-20 03:06:22,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-20 03:06:22,357 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:06:22,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:06:22,357 INFO L85 PathProgramCache]: Analyzing trace with hash 939072635, now seen corresponding path program 1 times [2023-12-20 03:06:22,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:06:22,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116530578] [2023-12-20 03:06:22,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:06:22,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:06:22,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:06:22,452 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 03:06:22,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:06:22,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116530578] [2023-12-20 03:06:22,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116530578] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:06:22,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:06:22,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 03:06:22,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642067701] [2023-12-20 03:06:22,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:06:22,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:06:22,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:06:22,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:06:22,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:06:22,454 INFO L87 Difference]: Start difference. First operand 366620 states and 516955 transitions. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 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 03:06:26,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:06:26,024 INFO L93 Difference]: Finished difference Result 796103 states and 1129918 transitions. [2023-12-20 03:06:26,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 03:06:26,025 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2023-12-20 03:06:26,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:06:27,273 INFO L225 Difference]: With dead ends: 796103 [2023-12-20 03:06:27,274 INFO L226 Difference]: Without dead ends: 740049 [2023-12-20 03:06:27,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:06:27,389 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 2960 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2960 SdHoareTripleChecker+Valid, 2332 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:06:27,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2960 Valid, 2332 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:06:27,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740049 states. [2023-12-20 03:06:34,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740049 to 401820. [2023-12-20 03:06:34,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401820 states, 401819 states have (on average 1.4115310624933117) internal successors, (567180), 401819 states have internal predecessors, (567180), 0 states have call successors, (0), 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 03:06:36,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401820 states to 401820 states and 567180 transitions. [2023-12-20 03:06:36,128 INFO L78 Accepts]: Start accepts. Automaton has 401820 states and 567180 transitions. Word has length 100 [2023-12-20 03:06:36,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:06:36,128 INFO L495 AbstractCegarLoop]: Abstraction has 401820 states and 567180 transitions. [2023-12-20 03:06:36,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 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 03:06:36,128 INFO L276 IsEmpty]: Start isEmpty. Operand 401820 states and 567180 transitions. [2023-12-20 03:06:36,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 03:06:36,138 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:06:36,138 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] [2023-12-20 03:06:36,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-20 03:06:36,138 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:06:36,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:06:36,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1067109518, now seen corresponding path program 1 times [2023-12-20 03:06:36,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:06:36,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310175513] [2023-12-20 03:06:36,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:06:36,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:06:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:06:36,256 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 03:06:36,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:06:36,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310175513] [2023-12-20 03:06:36,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310175513] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:06:36,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:06:36,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 03:06:36,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261242063] [2023-12-20 03:06:36,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:06:36,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:06:36,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:06:36,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:06:36,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:06:36,261 INFO L87 Difference]: Start difference. First operand 401820 states and 567180 transitions. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 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 03:06:39,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:06:39,729 INFO L93 Difference]: Finished difference Result 789623 states and 1119955 transitions. [2023-12-20 03:06:39,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 03:06:39,733 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2023-12-20 03:06:39,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:06:42,052 INFO L225 Difference]: With dead ends: 789623 [2023-12-20 03:06:42,052 INFO L226 Difference]: Without dead ends: 764673 [2023-12-20 03:06:42,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:06:42,204 INFO L413 NwaCegarLoop]: 494 mSDtfsCounter, 2787 mSDsluCounter, 1867 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2787 SdHoareTripleChecker+Valid, 2361 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 03:06:42,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2787 Valid, 2361 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 03:06:42,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764673 states. [2023-12-20 03:06:48,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764673 to 426444. [2023-12-20 03:06:49,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426444 states, 426443 states have (on average 1.4117642920624796) internal successors, (602037), 426443 states have internal predecessors, (602037), 0 states have call successors, (0), 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 03:06:50,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426444 states to 426444 states and 602037 transitions. [2023-12-20 03:06:50,928 INFO L78 Accepts]: Start accepts. Automaton has 426444 states and 602037 transitions. Word has length 100 [2023-12-20 03:06:50,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:06:50,928 INFO L495 AbstractCegarLoop]: Abstraction has 426444 states and 602037 transitions. [2023-12-20 03:06:50,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 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 03:06:50,929 INFO L276 IsEmpty]: Start isEmpty. Operand 426444 states and 602037 transitions. [2023-12-20 03:06:50,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 03:06:50,945 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:06:50,945 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] [2023-12-20 03:06:50,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-20 03:06:50,946 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:06:50,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:06:50,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1774110678, now seen corresponding path program 1 times [2023-12-20 03:06:50,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:06:50,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404130408] [2023-12-20 03:06:50,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:06:50,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:06:50,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:06:51,438 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 03:06:51,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:06:51,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404130408] [2023-12-20 03:06:51,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404130408] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:06:51,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:06:51,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 03:06:51,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773615431] [2023-12-20 03:06:51,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:06:51,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:06:51,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:06:51,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:06:51,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:06:51,440 INFO L87 Difference]: Start difference. First operand 426444 states and 602037 transitions. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 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 03:06:54,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:06:54,672 INFO L93 Difference]: Finished difference Result 905935 states and 1285658 transitions. [2023-12-20 03:06:54,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 03:06:54,672 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2023-12-20 03:06:54,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:06:57,404 INFO L225 Difference]: With dead ends: 905935 [2023-12-20 03:06:57,404 INFO L226 Difference]: Without dead ends: 819641 [2023-12-20 03:06:57,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:06:57,591 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 2539 mSDsluCounter, 2190 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2539 SdHoareTripleChecker+Valid, 2708 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:06:57,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2539 Valid, 2708 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:06:58,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819641 states. [2023-12-20 03:07:04,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819641 to 468206. [2023-12-20 03:07:04,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468206 states, 468205 states have (on average 1.4132527418545295) internal successors, (661692), 468205 states have internal predecessors, (661692), 0 states have call successors, (0), 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 03:07:06,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468206 states to 468206 states and 661692 transitions. [2023-12-20 03:07:06,015 INFO L78 Accepts]: Start accepts. Automaton has 468206 states and 661692 transitions. Word has length 100 [2023-12-20 03:07:06,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:07:06,016 INFO L495 AbstractCegarLoop]: Abstraction has 468206 states and 661692 transitions. [2023-12-20 03:07:06,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 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 03:07:06,016 INFO L276 IsEmpty]: Start isEmpty. Operand 468206 states and 661692 transitions. [2023-12-20 03:07:06,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 03:07:06,028 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:07:06,029 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] [2023-12-20 03:07:06,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-20 03:07:06,029 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:07:06,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:07:06,029 INFO L85 PathProgramCache]: Analyzing trace with hash 2022290700, now seen corresponding path program 1 times [2023-12-20 03:07:06,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:07:06,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126226924] [2023-12-20 03:07:06,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:07:06,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:07:06,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:07:06,134 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 03:07:06,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:07:06,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126226924] [2023-12-20 03:07:06,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126226924] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:07:06,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:07:06,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 03:07:06,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860804238] [2023-12-20 03:07:06,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:07:06,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:07:06,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:07:06,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:07:06,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:07:06,136 INFO L87 Difference]: Start difference. First operand 468206 states and 661692 transitions. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 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 03:07:10,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:07:10,315 INFO L93 Difference]: Finished difference Result 1044187 states and 1481279 transitions. [2023-12-20 03:07:10,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 03:07:10,316 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2023-12-20 03:07:10,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:07:12,270 INFO L225 Difference]: With dead ends: 1044187 [2023-12-20 03:07:12,270 INFO L226 Difference]: Without dead ends: 924629 [2023-12-20 03:07:12,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:07:12,604 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 2578 mSDsluCounter, 2382 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2578 SdHoareTripleChecker+Valid, 2922 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:07:12,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2578 Valid, 2922 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:07:13,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924629 states. [2023-12-20 03:07:21,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924629 to 526277. [2023-12-20 03:07:21,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526277 states, 526276 states have (on average 1.413974796494615) internal successors, (744141), 526276 states have internal predecessors, (744141), 0 states have call successors, (0), 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 03:07:23,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526277 states to 526277 states and 744141 transitions. [2023-12-20 03:07:23,952 INFO L78 Accepts]: Start accepts. Automaton has 526277 states and 744141 transitions. Word has length 100 [2023-12-20 03:07:23,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:07:23,952 INFO L495 AbstractCegarLoop]: Abstraction has 526277 states and 744141 transitions. [2023-12-20 03:07:23,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 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 03:07:23,952 INFO L276 IsEmpty]: Start isEmpty. Operand 526277 states and 744141 transitions. [2023-12-20 03:07:23,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-20 03:07:23,965 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:07:23,965 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] [2023-12-20 03:07:23,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-20 03:07:23,965 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:07:23,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:07:23,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1747807379, now seen corresponding path program 1 times [2023-12-20 03:07:23,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:07:23,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333297506] [2023-12-20 03:07:23,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:07:23,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:07:24,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:07:24,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:07:24,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:07:24,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333297506] [2023-12-20 03:07:24,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333297506] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:07:24,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:07:24,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 03:07:24,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786714794] [2023-12-20 03:07:24,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:07:24,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:07:24,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:07:24,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:07:24,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:07:24,763 INFO L87 Difference]: Start difference. First operand 526277 states and 744141 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 03:07:29,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:07:29,362 INFO L93 Difference]: Finished difference Result 1171492 states and 1660646 transitions. [2023-12-20 03:07:29,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 03:07:29,363 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2023-12-20 03:07:29,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:07:32,181 INFO L225 Difference]: With dead ends: 1171492 [2023-12-20 03:07:32,181 INFO L226 Difference]: Without dead ends: 1043006 [2023-12-20 03:07:32,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:07:32,388 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 2586 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2586 SdHoareTripleChecker+Valid, 2566 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:07:32,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2586 Valid, 2566 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:07:33,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043006 states. [2023-12-20 03:07:42,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043006 to 592306. [2023-12-20 03:07:43,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592306 states, 592305 states have (on average 1.4142781168485832) internal successors, (837684), 592305 states have internal predecessors, (837684), 0 states have call successors, (0), 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 03:07:45,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592306 states to 592306 states and 837684 transitions. [2023-12-20 03:07:45,411 INFO L78 Accepts]: Start accepts. Automaton has 592306 states and 837684 transitions. Word has length 101 [2023-12-20 03:07:45,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:07:45,411 INFO L495 AbstractCegarLoop]: Abstraction has 592306 states and 837684 transitions. [2023-12-20 03:07:45,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 03:07:45,412 INFO L276 IsEmpty]: Start isEmpty. Operand 592306 states and 837684 transitions. [2023-12-20 03:07:45,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-20 03:07:45,429 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:07:45,429 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] [2023-12-20 03:07:45,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-20 03:07:45,430 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:07:45,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:07:45,430 INFO L85 PathProgramCache]: Analyzing trace with hash -205223888, now seen corresponding path program 1 times [2023-12-20 03:07:45,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:07:45,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437516121] [2023-12-20 03:07:45,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:07:45,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:07:45,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:07:45,527 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 03:07:45,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:07:45,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437516121] [2023-12-20 03:07:45,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437516121] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:07:45,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:07:45,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 03:07:45,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476445525] [2023-12-20 03:07:45,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:07:45,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 03:07:45,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:07:45,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 03:07:45,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:07:45,529 INFO L87 Difference]: Start difference. First operand 592306 states and 837684 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 6 states have internal predecessors, (105), 0 states have call successors, (0), 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 03:07:59,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:07:59,398 INFO L93 Difference]: Finished difference Result 3215134 states and 4526089 transitions. [2023-12-20 03:07:59,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 03:07:59,398 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 6 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2023-12-20 03:07:59,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:08:05,856 INFO L225 Difference]: With dead ends: 3215134 [2023-12-20 03:08:05,856 INFO L226 Difference]: Without dead ends: 2897542 [2023-12-20 03:08:06,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-20 03:08:06,704 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 4104 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4104 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:08:06,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4104 Valid, 773 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:08:09,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2897542 states. [2023-12-20 03:08:28,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2897542 to 592914. [2023-12-20 03:08:29,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592914 states, 592913 states have (on average 1.4140792999984821) internal successors, (838426), 592913 states have internal predecessors, (838426), 0 states have call successors, (0), 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 03:08:31,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592914 states to 592914 states and 838426 transitions. [2023-12-20 03:08:31,637 INFO L78 Accepts]: Start accepts. Automaton has 592914 states and 838426 transitions. Word has length 105 [2023-12-20 03:08:31,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:08:31,637 INFO L495 AbstractCegarLoop]: Abstraction has 592914 states and 838426 transitions. [2023-12-20 03:08:31,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 6 states have internal predecessors, (105), 0 states have call successors, (0), 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 03:08:31,638 INFO L276 IsEmpty]: Start isEmpty. Operand 592914 states and 838426 transitions. [2023-12-20 03:08:31,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-20 03:08:31,656 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:08:31,656 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] [2023-12-20 03:08:31,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-20 03:08:31,656 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:08:31,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:08:31,657 INFO L85 PathProgramCache]: Analyzing trace with hash -896115188, now seen corresponding path program 1 times [2023-12-20 03:08:31,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:08:31,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657615798] [2023-12-20 03:08:31,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:08:31,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:08:31,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:08:31,797 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 03:08:31,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:08:31,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657615798] [2023-12-20 03:08:31,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657615798] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:08:31,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:08:31,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 03:08:31,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071532858] [2023-12-20 03:08:31,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:08:31,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 03:08:31,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:08:31,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 03:08:31,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:08:31,799 INFO L87 Difference]: Start difference. First operand 592914 states and 838426 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 6 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)