./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5aad5fd4611705ad6fdf71db638f2162c13b3da201193a54a746a0dc7cc3072f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 01:43:06,698 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 01:43:06,769 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 01:43:06,773 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 01:43:06,774 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 01:43:06,799 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 01:43:06,800 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 01:43:06,800 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 01:43:06,801 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 01:43:06,804 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 01:43:06,804 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 01:43:06,805 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 01:43:06,805 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 01:43:06,805 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 01:43:06,806 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 01:43:06,806 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 01:43:06,807 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 01:43:06,808 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 01:43:06,808 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 01:43:06,808 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 01:43:06,808 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 01:43:06,809 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 01:43:06,809 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 01:43:06,809 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 01:43:06,809 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 01:43:06,809 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 01:43:06,810 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 01:43:06,810 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 01:43:06,810 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 01:43:06,810 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 01:43:06,810 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 01:43:06,811 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 01:43:06,811 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:43:06,811 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 01:43:06,811 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 01:43:06,811 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 01:43:06,812 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 01:43:06,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 01:43:06,812 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 01:43:06,813 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 01:43:06,813 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 01:43:06,814 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 01:43:06,814 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5aad5fd4611705ad6fdf71db638f2162c13b3da201193a54a746a0dc7cc3072f [2024-10-24 01:43:07,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 01:43:07,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 01:43:07,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 01:43:07,038 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 01:43:07,038 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 01:43:07,039 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-10-24 01:43:08,370 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 01:43:08,566 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 01:43:08,567 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-10-24 01:43:08,576 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/910605749/6c0371f7f1c843e89da52ede1deb6080/FLAGa0aca8817 [2024-10-24 01:43:08,587 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/910605749/6c0371f7f1c843e89da52ede1deb6080 [2024-10-24 01:43:08,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 01:43:08,590 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 01:43:08,591 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 01:43:08,591 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 01:43:08,602 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 01:43:08,602 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:43:08" (1/1) ... [2024-10-24 01:43:08,603 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f7c480e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:08, skipping insertion in model container [2024-10-24 01:43:08,603 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:43:08" (1/1) ... [2024-10-24 01:43:08,645 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 01:43:08,892 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[7251,7264] [2024-10-24 01:43:08,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:43:08,959 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 01:43:09,001 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[7251,7264] [2024-10-24 01:43:09,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:43:09,046 INFO L204 MainTranslator]: Completed translation [2024-10-24 01:43:09,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:09 WrapperNode [2024-10-24 01:43:09,046 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 01:43:09,047 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 01:43:09,047 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 01:43:09,047 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 01:43:09,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:09" (1/1) ... [2024-10-24 01:43:09,067 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:09" (1/1) ... [2024-10-24 01:43:09,100 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 736 [2024-10-24 01:43:09,104 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 01:43:09,105 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 01:43:09,105 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 01:43:09,106 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 01:43:09,114 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:09" (1/1) ... [2024-10-24 01:43:09,115 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:09" (1/1) ... [2024-10-24 01:43:09,119 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:09" (1/1) ... [2024-10-24 01:43:09,150 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]. [2024-10-24 01:43:09,152 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:09" (1/1) ... [2024-10-24 01:43:09,152 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:09" (1/1) ... [2024-10-24 01:43:09,163 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:09" (1/1) ... [2024-10-24 01:43:09,182 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:09" (1/1) ... [2024-10-24 01:43:09,188 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:09" (1/1) ... [2024-10-24 01:43:09,196 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:09" (1/1) ... [2024-10-24 01:43:09,205 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 01:43:09,206 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 01:43:09,211 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 01:43:09,211 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 01:43:09,211 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:09" (1/1) ... [2024-10-24 01:43:09,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:43:09,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:43:09,242 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) [2024-10-24 01:43:09,251 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 [2024-10-24 01:43:09,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 01:43:09,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 01:43:09,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 01:43:09,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 01:43:09,390 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 01:43:09,391 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 01:43:09,975 INFO L? ?]: Removed 89 outVars from TransFormulas that were not future-live. [2024-10-24 01:43:09,975 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 01:43:10,020 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 01:43:10,020 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 01:43:10,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:43:10 BoogieIcfgContainer [2024-10-24 01:43:10,021 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 01:43:10,022 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 01:43:10,022 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 01:43:10,025 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 01:43:10,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:43:08" (1/3) ... [2024-10-24 01:43:10,026 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d547b32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:43:10, skipping insertion in model container [2024-10-24 01:43:10,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:09" (2/3) ... [2024-10-24 01:43:10,026 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d547b32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:43:10, skipping insertion in model container [2024-10-24 01:43:10,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:43:10" (3/3) ... [2024-10-24 01:43:10,028 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-10-24 01:43:10,042 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 01:43:10,042 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 01:43:10,098 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 01:43:10,105 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@330ac653, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 01:43:10,105 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 01:43:10,109 INFO L276 IsEmpty]: Start isEmpty. Operand has 178 states, 176 states have (on average 1.7272727272727273) internal successors, (304), 177 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:10,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-24 01:43:10,115 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:10,117 INFO L215 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] [2024-10-24 01:43:10,118 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:10,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:10,125 INFO L85 PathProgramCache]: Analyzing trace with hash -303443606, now seen corresponding path program 1 times [2024-10-24 01:43:10,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:10,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850883915] [2024-10-24 01:43:10,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:10,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:10,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:10,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:10,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850883915] [2024-10-24 01:43:10,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850883915] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:10,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:10,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:43:10,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341028779] [2024-10-24 01:43:10,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:10,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:43:10,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:10,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:43:10,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:43:10,713 INFO L87 Difference]: Start difference. First operand has 178 states, 176 states have (on average 1.7272727272727273) internal successors, (304), 177 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:10,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:10,897 INFO L93 Difference]: Finished difference Result 633 states and 1029 transitions. [2024-10-24 01:43:10,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:43:10,902 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-10-24 01:43:10,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:10,913 INFO L225 Difference]: With dead ends: 633 [2024-10-24 01:43:10,913 INFO L226 Difference]: Without dead ends: 540 [2024-10-24 01:43:10,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:43:10,919 INFO L432 NwaCegarLoop]: 295 mSDtfsCounter, 1601 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1601 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:10,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1601 Valid, 1097 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:43:10,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-10-24 01:43:10,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 274. [2024-10-24 01:43:10,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 273 states have (on average 1.5054945054945055) internal successors, (411), 273 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:10,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 411 transitions. [2024-10-24 01:43:10,968 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 411 transitions. Word has length 64 [2024-10-24 01:43:10,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:10,968 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 411 transitions. [2024-10-24 01:43:10,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:10,969 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 411 transitions. [2024-10-24 01:43:10,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-24 01:43:10,970 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:10,970 INFO L215 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] [2024-10-24 01:43:10,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 01:43:10,971 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:10,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:10,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1095782796, now seen corresponding path program 1 times [2024-10-24 01:43:10,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:10,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944632337] [2024-10-24 01:43:10,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:10,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:11,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:11,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:11,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:11,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944632337] [2024-10-24 01:43:11,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944632337] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:11,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:11,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:43:11,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679434410] [2024-10-24 01:43:11,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:11,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:43:11,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:11,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:43:11,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:43:11,206 INFO L87 Difference]: Start difference. First operand 274 states and 411 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:11,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:11,356 INFO L93 Difference]: Finished difference Result 1012 states and 1555 transitions. [2024-10-24 01:43:11,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:43:11,356 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-10-24 01:43:11,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:11,359 INFO L225 Difference]: With dead ends: 1012 [2024-10-24 01:43:11,359 INFO L226 Difference]: Without dead ends: 800 [2024-10-24 01:43:11,362 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:43:11,364 INFO L432 NwaCegarLoop]: 388 mSDtfsCounter, 836 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:11,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [836 Valid, 848 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:43:11,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2024-10-24 01:43:11,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 794. [2024-10-24 01:43:11,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 793 states have (on average 1.5258511979823455) internal successors, (1210), 793 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:11,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1210 transitions. [2024-10-24 01:43:11,396 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1210 transitions. Word has length 65 [2024-10-24 01:43:11,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:11,397 INFO L471 AbstractCegarLoop]: Abstraction has 794 states and 1210 transitions. [2024-10-24 01:43:11,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:11,397 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1210 transitions. [2024-10-24 01:43:11,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-24 01:43:11,399 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:11,399 INFO L215 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] [2024-10-24 01:43:11,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 01:43:11,400 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:11,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:11,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1595686128, now seen corresponding path program 1 times [2024-10-24 01:43:11,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:11,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163813860] [2024-10-24 01:43:11,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:11,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:11,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:11,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:11,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:11,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163813860] [2024-10-24 01:43:11,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163813860] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:11,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:11,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:43:11,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329748075] [2024-10-24 01:43:11,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:11,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:43:11,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:11,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:43:11,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:43:11,537 INFO L87 Difference]: Start difference. First operand 794 states and 1210 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:11,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:11,731 INFO L93 Difference]: Finished difference Result 2126 states and 3280 transitions. [2024-10-24 01:43:11,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:43:11,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-10-24 01:43:11,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:11,737 INFO L225 Difference]: With dead ends: 2126 [2024-10-24 01:43:11,738 INFO L226 Difference]: Without dead ends: 1382 [2024-10-24 01:43:11,742 INFO L431 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 [2024-10-24 01:43:11,743 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 998 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:11,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 242 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:43:11,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2024-10-24 01:43:11,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1380. [2024-10-24 01:43:11,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1379 states have (on average 1.5337200870195795) internal successors, (2115), 1379 states have internal predecessors, (2115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:11,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 2115 transitions. [2024-10-24 01:43:11,772 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 2115 transitions. Word has length 66 [2024-10-24 01:43:11,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:11,773 INFO L471 AbstractCegarLoop]: Abstraction has 1380 states and 2115 transitions. [2024-10-24 01:43:11,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:11,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 2115 transitions. [2024-10-24 01:43:11,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-24 01:43:11,780 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:11,780 INFO L215 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] [2024-10-24 01:43:11,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 01:43:11,781 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:11,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:11,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1582885390, now seen corresponding path program 1 times [2024-10-24 01:43:11,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:11,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948246992] [2024-10-24 01:43:11,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:11,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:11,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:11,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:11,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:11,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948246992] [2024-10-24 01:43:11,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948246992] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:11,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:11,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:43:11,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510213135] [2024-10-24 01:43:11,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:11,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:43:11,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:11,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:43:11,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:43:11,897 INFO L87 Difference]: Start difference. First operand 1380 states and 2115 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:12,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:12,080 INFO L93 Difference]: Finished difference Result 3712 states and 5741 transitions. [2024-10-24 01:43:12,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:43:12,080 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-10-24 01:43:12,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:12,087 INFO L225 Difference]: With dead ends: 3712 [2024-10-24 01:43:12,087 INFO L226 Difference]: Without dead ends: 2432 [2024-10-24 01:43:12,089 INFO L431 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 [2024-10-24 01:43:12,090 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 924 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:12,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [924 Valid, 248 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:43:12,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2432 states. [2024-10-24 01:43:12,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2432 to 2430. [2024-10-24 01:43:12,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2430 states, 2429 states have (on average 1.53684643886373) internal successors, (3733), 2429 states have internal predecessors, (3733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:12,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2430 states to 2430 states and 3733 transitions. [2024-10-24 01:43:12,136 INFO L78 Accepts]: Start accepts. Automaton has 2430 states and 3733 transitions. Word has length 66 [2024-10-24 01:43:12,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:12,138 INFO L471 AbstractCegarLoop]: Abstraction has 2430 states and 3733 transitions. [2024-10-24 01:43:12,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:12,138 INFO L276 IsEmpty]: Start isEmpty. Operand 2430 states and 3733 transitions. [2024-10-24 01:43:12,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-24 01:43:12,141 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:12,141 INFO L215 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] [2024-10-24 01:43:12,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 01:43:12,142 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:12,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:12,142 INFO L85 PathProgramCache]: Analyzing trace with hash 441008545, now seen corresponding path program 1 times [2024-10-24 01:43:12,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:12,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318233047] [2024-10-24 01:43:12,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:12,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:12,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:12,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:12,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:12,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318233047] [2024-10-24 01:43:12,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318233047] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:12,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:12,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:43:12,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529940562] [2024-10-24 01:43:12,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:12,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:43:12,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:12,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:43:12,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:43:12,259 INFO L87 Difference]: Start difference. First operand 2430 states and 3733 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:12,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:12,440 INFO L93 Difference]: Finished difference Result 6933 states and 10704 transitions. [2024-10-24 01:43:12,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:43:12,441 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-10-24 01:43:12,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:12,453 INFO L225 Difference]: With dead ends: 6933 [2024-10-24 01:43:12,453 INFO L226 Difference]: Without dead ends: 4576 [2024-10-24 01:43:12,456 INFO L431 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 [2024-10-24 01:43:12,457 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 950 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:12,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [950 Valid, 246 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:43:12,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4576 states. [2024-10-24 01:43:12,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4576 to 4574. [2024-10-24 01:43:12,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4574 states, 4573 states have (on average 1.5344412858080034) internal successors, (7017), 4573 states have internal predecessors, (7017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:12,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4574 states to 4574 states and 7017 transitions. [2024-10-24 01:43:12,534 INFO L78 Accepts]: Start accepts. Automaton has 4574 states and 7017 transitions. Word has length 66 [2024-10-24 01:43:12,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:12,534 INFO L471 AbstractCegarLoop]: Abstraction has 4574 states and 7017 transitions. [2024-10-24 01:43:12,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:12,535 INFO L276 IsEmpty]: Start isEmpty. Operand 4574 states and 7017 transitions. [2024-10-24 01:43:12,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-24 01:43:12,537 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:12,537 INFO L215 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] [2024-10-24 01:43:12,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 01:43:12,538 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:12,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:12,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1544480193, now seen corresponding path program 1 times [2024-10-24 01:43:12,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:12,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768364774] [2024-10-24 01:43:12,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:12,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:12,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:12,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:12,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:12,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768364774] [2024-10-24 01:43:12,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768364774] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:12,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:12,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:43:12,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910267556] [2024-10-24 01:43:12,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:12,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:43:12,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:12,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:43:12,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:43:12,676 INFO L87 Difference]: Start difference. First operand 4574 states and 7017 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:12,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:12,893 INFO L93 Difference]: Finished difference Result 12540 states and 19290 transitions. [2024-10-24 01:43:12,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:43:12,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-10-24 01:43:12,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:12,918 INFO L225 Difference]: With dead ends: 12540 [2024-10-24 01:43:12,919 INFO L226 Difference]: Without dead ends: 8000 [2024-10-24 01:43:12,928 INFO L431 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 [2024-10-24 01:43:12,930 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 1012 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1012 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:12,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1012 Valid, 240 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:43:12,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8000 states. [2024-10-24 01:43:13,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8000 to 7998. [2024-10-24 01:43:13,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7998 states, 7997 states have (on average 1.5250719019632362) internal successors, (12196), 7997 states have internal predecessors, (12196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:13,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7998 states to 7998 states and 12196 transitions. [2024-10-24 01:43:13,082 INFO L78 Accepts]: Start accepts. Automaton has 7998 states and 12196 transitions. Word has length 66 [2024-10-24 01:43:13,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:13,083 INFO L471 AbstractCegarLoop]: Abstraction has 7998 states and 12196 transitions. [2024-10-24 01:43:13,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:13,083 INFO L276 IsEmpty]: Start isEmpty. Operand 7998 states and 12196 transitions. [2024-10-24 01:43:13,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-24 01:43:13,085 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:13,085 INFO L215 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] [2024-10-24 01:43:13,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 01:43:13,085 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:13,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:13,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1843096928, now seen corresponding path program 1 times [2024-10-24 01:43:13,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:13,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839158661] [2024-10-24 01:43:13,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:13,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:13,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:13,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:13,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:13,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839158661] [2024-10-24 01:43:13,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839158661] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:13,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:13,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:43:13,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777731134] [2024-10-24 01:43:13,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:13,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:43:13,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:13,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:43:13,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:43:13,394 INFO L87 Difference]: Start difference. First operand 7998 states and 12196 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:13,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:13,455 INFO L93 Difference]: Finished difference Result 8224 states and 12533 transitions. [2024-10-24 01:43:13,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:43:13,455 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-10-24 01:43:13,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:13,491 INFO L225 Difference]: With dead ends: 8224 [2024-10-24 01:43:13,491 INFO L226 Difference]: Without dead ends: 8222 [2024-10-24 01:43:13,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:43:13,500 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 0 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:13,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 961 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:43:13,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8222 states. [2024-10-24 01:43:13,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8222 to 8222. [2024-10-24 01:43:13,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8222 states, 8221 states have (on average 1.5107651137331224) internal successors, (12420), 8221 states have internal predecessors, (12420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:13,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8222 states to 8222 states and 12420 transitions. [2024-10-24 01:43:13,651 INFO L78 Accepts]: Start accepts. Automaton has 8222 states and 12420 transitions. Word has length 67 [2024-10-24 01:43:13,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:13,651 INFO L471 AbstractCegarLoop]: Abstraction has 8222 states and 12420 transitions. [2024-10-24 01:43:13,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:13,652 INFO L276 IsEmpty]: Start isEmpty. Operand 8222 states and 12420 transitions. [2024-10-24 01:43:13,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-24 01:43:13,657 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:13,657 INFO L215 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] [2024-10-24 01:43:13,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 01:43:13,658 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:13,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:13,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1022976121, now seen corresponding path program 1 times [2024-10-24 01:43:13,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:13,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055111407] [2024-10-24 01:43:13,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:13,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:13,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:13,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:13,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:13,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055111407] [2024-10-24 01:43:13,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055111407] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:13,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:13,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:43:13,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667590168] [2024-10-24 01:43:13,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:13,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:43:13,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:13,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:43:13,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:43:13,857 INFO L87 Difference]: Start difference. First operand 8222 states and 12420 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:13,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:13,939 INFO L93 Difference]: Finished difference Result 22282 states and 33598 transitions. [2024-10-24 01:43:13,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:43:13,939 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-10-24 01:43:13,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:13,964 INFO L225 Difference]: With dead ends: 22282 [2024-10-24 01:43:13,965 INFO L226 Difference]: Without dead ends: 14632 [2024-10-24 01:43:13,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:43:13,977 INFO L432 NwaCegarLoop]: 330 mSDtfsCounter, 171 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:13,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 707 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:43:13,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14632 states. [2024-10-24 01:43:14,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14632 to 14630. [2024-10-24 01:43:14,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14630 states, 14629 states have (on average 1.495932736345615) internal successors, (21884), 14629 states have internal predecessors, (21884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:14,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14630 states to 14630 states and 21884 transitions. [2024-10-24 01:43:14,260 INFO L78 Accepts]: Start accepts. Automaton has 14630 states and 21884 transitions. Word has length 68 [2024-10-24 01:43:14,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:14,260 INFO L471 AbstractCegarLoop]: Abstraction has 14630 states and 21884 transitions. [2024-10-24 01:43:14,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:14,261 INFO L276 IsEmpty]: Start isEmpty. Operand 14630 states and 21884 transitions. [2024-10-24 01:43:14,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-24 01:43:14,263 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:14,263 INFO L215 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] [2024-10-24 01:43:14,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 01:43:14,263 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:14,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:14,264 INFO L85 PathProgramCache]: Analyzing trace with hash 727982169, now seen corresponding path program 1 times [2024-10-24 01:43:14,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:14,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549242090] [2024-10-24 01:43:14,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:14,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:14,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:14,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:14,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:14,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549242090] [2024-10-24 01:43:14,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549242090] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:14,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:14,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:43:14,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47229458] [2024-10-24 01:43:14,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:14,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:43:14,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:14,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:43:14,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:43:14,314 INFO L87 Difference]: Start difference. First operand 14630 states and 21884 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:14,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:14,385 INFO L93 Difference]: Finished difference Result 27257 states and 40752 transitions. [2024-10-24 01:43:14,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:43:14,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-10-24 01:43:14,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:14,413 INFO L225 Difference]: With dead ends: 27257 [2024-10-24 01:43:14,413 INFO L226 Difference]: Without dead ends: 18227 [2024-10-24 01:43:14,426 INFO L431 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 [2024-10-24 01:43:14,428 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 155 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 465 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 [2024-10-24 01:43:14,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 465 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:43:14,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18227 states. [2024-10-24 01:43:14,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18227 to 18018. [2024-10-24 01:43:14,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18018 states, 18017 states have (on average 1.4735527557306989) internal successors, (26549), 18017 states have internal predecessors, (26549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:14,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18018 states to 18018 states and 26549 transitions. [2024-10-24 01:43:14,807 INFO L78 Accepts]: Start accepts. Automaton has 18018 states and 26549 transitions. Word has length 69 [2024-10-24 01:43:14,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:14,807 INFO L471 AbstractCegarLoop]: Abstraction has 18018 states and 26549 transitions. [2024-10-24 01:43:14,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:14,807 INFO L276 IsEmpty]: Start isEmpty. Operand 18018 states and 26549 transitions. [2024-10-24 01:43:14,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-24 01:43:14,809 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:14,810 INFO L215 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] [2024-10-24 01:43:14,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 01:43:14,810 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:14,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:14,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1778498824, now seen corresponding path program 1 times [2024-10-24 01:43:14,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:14,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889666171] [2024-10-24 01:43:14,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:14,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:14,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:14,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:14,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:14,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889666171] [2024-10-24 01:43:14,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889666171] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:14,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:14,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:43:14,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966631341] [2024-10-24 01:43:14,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:14,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:43:14,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:14,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:43:14,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:43:14,871 INFO L87 Difference]: Start difference. First operand 18018 states and 26549 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:14,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:14,951 INFO L93 Difference]: Finished difference Result 25096 states and 36828 transitions. [2024-10-24 01:43:14,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:43:14,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-10-24 01:43:14,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:14,981 INFO L225 Difference]: With dead ends: 25096 [2024-10-24 01:43:14,981 INFO L226 Difference]: Without dead ends: 18507 [2024-10-24 01:43:14,994 INFO L431 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 [2024-10-24 01:43:14,995 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 143 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:14,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 463 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:43:15,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18507 states. [2024-10-24 01:43:15,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18507 to 16589. [2024-10-24 01:43:15,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16589 states, 16588 states have (on average 1.4471304557511455) internal successors, (24005), 16588 states have internal predecessors, (24005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:15,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16589 states to 16589 states and 24005 transitions. [2024-10-24 01:43:15,288 INFO L78 Accepts]: Start accepts. Automaton has 16589 states and 24005 transitions. Word has length 69 [2024-10-24 01:43:15,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:15,288 INFO L471 AbstractCegarLoop]: Abstraction has 16589 states and 24005 transitions. [2024-10-24 01:43:15,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:15,288 INFO L276 IsEmpty]: Start isEmpty. Operand 16589 states and 24005 transitions. [2024-10-24 01:43:15,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-24 01:43:15,290 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:15,290 INFO L215 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] [2024-10-24 01:43:15,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 01:43:15,290 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:15,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:15,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1077276120, now seen corresponding path program 1 times [2024-10-24 01:43:15,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:15,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061367728] [2024-10-24 01:43:15,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:15,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:15,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:15,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:15,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061367728] [2024-10-24 01:43:15,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061367728] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:15,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:15,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:43:15,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570215156] [2024-10-24 01:43:15,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:15,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:43:15,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:15,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:43:15,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:43:15,452 INFO L87 Difference]: Start difference. First operand 16589 states and 24005 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:15,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:15,596 INFO L93 Difference]: Finished difference Result 34527 states and 50324 transitions. [2024-10-24 01:43:15,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:43:15,596 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-10-24 01:43:15,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:15,639 INFO L225 Difference]: With dead ends: 34527 [2024-10-24 01:43:15,639 INFO L226 Difference]: Without dead ends: 27401 [2024-10-24 01:43:15,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:43:15,657 INFO L432 NwaCegarLoop]: 388 mSDtfsCounter, 1114 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1114 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:15,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1114 Valid, 1332 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:43:15,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27401 states. [2024-10-24 01:43:15,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27401 to 23015. [2024-10-24 01:43:15,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23015 states, 23014 states have (on average 1.4476840184235682) internal successors, (33317), 23014 states have internal predecessors, (33317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:15,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23015 states to 23015 states and 33317 transitions. [2024-10-24 01:43:15,998 INFO L78 Accepts]: Start accepts. Automaton has 23015 states and 33317 transitions. Word has length 69 [2024-10-24 01:43:15,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:15,998 INFO L471 AbstractCegarLoop]: Abstraction has 23015 states and 33317 transitions. [2024-10-24 01:43:15,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:15,998 INFO L276 IsEmpty]: Start isEmpty. Operand 23015 states and 33317 transitions. [2024-10-24 01:43:16,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-24 01:43:16,000 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:16,001 INFO L215 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] [2024-10-24 01:43:16,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 01:43:16,001 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:16,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:16,001 INFO L85 PathProgramCache]: Analyzing trace with hash -736167559, now seen corresponding path program 1 times [2024-10-24 01:43:16,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:16,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351867413] [2024-10-24 01:43:16,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:16,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:16,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:16,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:16,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:16,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351867413] [2024-10-24 01:43:16,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351867413] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:16,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:16,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:43:16,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797479469] [2024-10-24 01:43:16,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:16,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:43:16,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:16,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:43:16,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:43:16,059 INFO L87 Difference]: Start difference. First operand 23015 states and 33317 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:16,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:16,278 INFO L93 Difference]: Finished difference Result 52468 states and 75877 transitions. [2024-10-24 01:43:16,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:43:16,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-10-24 01:43:16,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:16,333 INFO L225 Difference]: With dead ends: 52468 [2024-10-24 01:43:16,334 INFO L226 Difference]: Without dead ends: 31623 [2024-10-24 01:43:16,358 INFO L431 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 [2024-10-24 01:43:16,359 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 173 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 461 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 [2024-10-24 01:43:16,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 461 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:43:16,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31623 states. [2024-10-24 01:43:16,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31623 to 31531. [2024-10-24 01:43:16,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31531 states, 31530 states have (on average 1.4263875673961306) internal successors, (44974), 31530 states have internal predecessors, (44974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:16,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31531 states to 31531 states and 44974 transitions. [2024-10-24 01:43:16,824 INFO L78 Accepts]: Start accepts. Automaton has 31531 states and 44974 transitions. Word has length 69 [2024-10-24 01:43:16,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:16,825 INFO L471 AbstractCegarLoop]: Abstraction has 31531 states and 44974 transitions. [2024-10-24 01:43:16,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:16,825 INFO L276 IsEmpty]: Start isEmpty. Operand 31531 states and 44974 transitions. [2024-10-24 01:43:16,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-24 01:43:16,828 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:16,828 INFO L215 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] [2024-10-24 01:43:16,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 01:43:16,829 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:16,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:16,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1508312264, now seen corresponding path program 1 times [2024-10-24 01:43:16,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:16,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591365601] [2024-10-24 01:43:16,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:16,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:16,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:16,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:16,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591365601] [2024-10-24 01:43:16,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591365601] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:16,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:16,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:43:16,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865813878] [2024-10-24 01:43:16,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:16,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:43:16,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:16,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:43:16,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:43:16,947 INFO L87 Difference]: Start difference. First operand 31531 states and 44974 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:17,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:17,241 INFO L93 Difference]: Finished difference Result 45146 states and 64652 transitions. [2024-10-24 01:43:17,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:43:17,241 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-10-24 01:43:17,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:17,296 INFO L225 Difference]: With dead ends: 45146 [2024-10-24 01:43:17,296 INFO L226 Difference]: Without dead ends: 42918 [2024-10-24 01:43:17,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:43:17,313 INFO L432 NwaCegarLoop]: 352 mSDtfsCounter, 1115 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:17,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1115 Valid, 1174 Invalid, 55 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:43:17,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42918 states. [2024-10-24 01:43:17,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42918 to 33735. [2024-10-24 01:43:17,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33735 states, 33734 states have (on average 1.4264540226477738) internal successors, (48120), 33734 states have internal predecessors, (48120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:17,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33735 states to 33735 states and 48120 transitions. [2024-10-24 01:43:17,791 INFO L78 Accepts]: Start accepts. Automaton has 33735 states and 48120 transitions. Word has length 69 [2024-10-24 01:43:17,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:17,791 INFO L471 AbstractCegarLoop]: Abstraction has 33735 states and 48120 transitions. [2024-10-24 01:43:17,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:17,791 INFO L276 IsEmpty]: Start isEmpty. Operand 33735 states and 48120 transitions. [2024-10-24 01:43:17,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-24 01:43:17,794 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:17,795 INFO L215 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] [2024-10-24 01:43:17,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 01:43:17,795 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:17,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:17,795 INFO L85 PathProgramCache]: Analyzing trace with hash -567435143, now seen corresponding path program 1 times [2024-10-24 01:43:17,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:17,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987408196] [2024-10-24 01:43:17,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:17,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:17,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:17,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:17,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:17,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987408196] [2024-10-24 01:43:17,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987408196] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:17,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:17,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:43:17,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848439429] [2024-10-24 01:43:17,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:17,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:43:17,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:17,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:43:17,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:43:17,889 INFO L87 Difference]: Start difference. First operand 33735 states and 48120 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:18,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:18,287 INFO L93 Difference]: Finished difference Result 50022 states and 71662 transitions. [2024-10-24 01:43:18,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:43:18,288 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-10-24 01:43:18,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:18,372 INFO L225 Difference]: With dead ends: 50022 [2024-10-24 01:43:18,372 INFO L226 Difference]: Without dead ends: 45066 [2024-10-24 01:43:18,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:43:18,383 INFO L432 NwaCegarLoop]: 378 mSDtfsCounter, 1022 mSDsluCounter, 986 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 1364 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:18,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1022 Valid, 1364 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:43:18,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45066 states. [2024-10-24 01:43:18,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45066 to 38659. [2024-10-24 01:43:18,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38659 states, 38658 states have (on average 1.4265093900356978) internal successors, (55146), 38658 states have internal predecessors, (55146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:18,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38659 states to 38659 states and 55146 transitions. [2024-10-24 01:43:18,984 INFO L78 Accepts]: Start accepts. Automaton has 38659 states and 55146 transitions. Word has length 69 [2024-10-24 01:43:18,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:18,984 INFO L471 AbstractCegarLoop]: Abstraction has 38659 states and 55146 transitions. [2024-10-24 01:43:18,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:18,985 INFO L276 IsEmpty]: Start isEmpty. Operand 38659 states and 55146 transitions. [2024-10-24 01:43:18,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-24 01:43:18,989 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:18,989 INFO L215 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] [2024-10-24 01:43:18,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 01:43:18,989 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:18,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:18,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1772958041, now seen corresponding path program 1 times [2024-10-24 01:43:18,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:18,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660580106] [2024-10-24 01:43:18,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:18,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:19,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:19,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:19,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660580106] [2024-10-24 01:43:19,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660580106] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:19,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:19,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:43:19,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234483388] [2024-10-24 01:43:19,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:19,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:43:19,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:19,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:43:19,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:43:19,207 INFO L87 Difference]: Start difference. First operand 38659 states and 55146 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:19,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:19,398 INFO L93 Difference]: Finished difference Result 62814 states and 90072 transitions. [2024-10-24 01:43:19,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:43:19,398 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-10-24 01:43:19,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:19,461 INFO L225 Difference]: With dead ends: 62814 [2024-10-24 01:43:19,461 INFO L226 Difference]: Without dead ends: 53478 [2024-10-24 01:43:19,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:43:19,484 INFO L432 NwaCegarLoop]: 398 mSDtfsCounter, 1115 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:19,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1115 Valid, 1296 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:43:19,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53478 states. [2024-10-24 01:43:20,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53478 to 45711. [2024-10-24 01:43:20,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45711 states, 45710 states have (on average 1.4269962809013346) internal successors, (65228), 45710 states have internal predecessors, (65228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:20,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45711 states to 45711 states and 65228 transitions. [2024-10-24 01:43:20,204 INFO L78 Accepts]: Start accepts. Automaton has 45711 states and 65228 transitions. Word has length 69 [2024-10-24 01:43:20,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:20,204 INFO L471 AbstractCegarLoop]: Abstraction has 45711 states and 65228 transitions. [2024-10-24 01:43:20,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:20,204 INFO L276 IsEmpty]: Start isEmpty. Operand 45711 states and 65228 transitions. [2024-10-24 01:43:20,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-24 01:43:20,210 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:20,210 INFO L215 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] [2024-10-24 01:43:20,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 01:43:20,211 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:20,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:20,211 INFO L85 PathProgramCache]: Analyzing trace with hash -390496674, now seen corresponding path program 1 times [2024-10-24 01:43:20,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:20,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870955925] [2024-10-24 01:43:20,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:20,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:20,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:20,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:20,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870955925] [2024-10-24 01:43:20,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870955925] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:20,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:20,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:43:20,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649754747] [2024-10-24 01:43:20,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:20,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:43:20,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:20,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:43:20,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:43:20,264 INFO L87 Difference]: Start difference. First operand 45711 states and 65228 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:20,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:20,542 INFO L93 Difference]: Finished difference Result 95183 states and 135133 transitions. [2024-10-24 01:43:20,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:43:20,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2024-10-24 01:43:20,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:20,608 INFO L225 Difference]: With dead ends: 95183 [2024-10-24 01:43:20,608 INFO L226 Difference]: Without dead ends: 51853 [2024-10-24 01:43:20,646 INFO L431 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 [2024-10-24 01:43:20,646 INFO L432 NwaCegarLoop]: 341 mSDtfsCounter, 158 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 561 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 [2024-10-24 01:43:20,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 561 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:43:20,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51853 states. [2024-10-24 01:43:21,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51853 to 46977. [2024-10-24 01:43:21,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46977 states, 46976 states have (on average 1.3900928133514987) internal successors, (65301), 46976 states have internal predecessors, (65301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:21,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46977 states to 46977 states and 65301 transitions. [2024-10-24 01:43:21,360 INFO L78 Accepts]: Start accepts. Automaton has 46977 states and 65301 transitions. Word has length 72 [2024-10-24 01:43:21,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:21,361 INFO L471 AbstractCegarLoop]: Abstraction has 46977 states and 65301 transitions. [2024-10-24 01:43:21,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:21,361 INFO L276 IsEmpty]: Start isEmpty. Operand 46977 states and 65301 transitions. [2024-10-24 01:43:21,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-24 01:43:21,368 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:21,368 INFO L215 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] [2024-10-24 01:43:21,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 01:43:21,368 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:21,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:21,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1903153330, now seen corresponding path program 1 times [2024-10-24 01:43:21,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:21,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286306587] [2024-10-24 01:43:21,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:21,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:21,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:21,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:21,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:21,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286306587] [2024-10-24 01:43:21,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286306587] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:21,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:21,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:43:21,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123860641] [2024-10-24 01:43:21,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:21,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:43:21,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:21,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:43:21,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:43:21,464 INFO L87 Difference]: Start difference. First operand 46977 states and 65301 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:22,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:22,367 INFO L93 Difference]: Finished difference Result 148554 states and 205682 transitions. [2024-10-24 01:43:22,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 01:43:22,368 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-10-24 01:43:22,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:22,541 INFO L225 Difference]: With dead ends: 148554 [2024-10-24 01:43:22,541 INFO L226 Difference]: Without dead ends: 125739 [2024-10-24 01:43:22,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:43:22,588 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 1767 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1767 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:22,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1767 Valid, 466 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 01:43:22,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125739 states. [2024-10-24 01:43:23,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125739 to 47093. [2024-10-24 01:43:23,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47093 states, 47092 states have (on average 1.3897052577932558) internal successors, (65444), 47092 states have internal predecessors, (65444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:23,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47093 states to 47093 states and 65444 transitions. [2024-10-24 01:43:23,813 INFO L78 Accepts]: Start accepts. Automaton has 47093 states and 65444 transitions. Word has length 74 [2024-10-24 01:43:23,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:23,813 INFO L471 AbstractCegarLoop]: Abstraction has 47093 states and 65444 transitions. [2024-10-24 01:43:23,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:23,814 INFO L276 IsEmpty]: Start isEmpty. Operand 47093 states and 65444 transitions. [2024-10-24 01:43:23,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-24 01:43:23,823 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:23,823 INFO L215 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] [2024-10-24 01:43:23,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 01:43:23,823 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:23,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:23,824 INFO L85 PathProgramCache]: Analyzing trace with hash -331835791, now seen corresponding path program 1 times [2024-10-24 01:43:23,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:23,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792651674] [2024-10-24 01:43:23,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:23,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:23,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:23,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:23,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:23,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792651674] [2024-10-24 01:43:23,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792651674] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:23,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:23,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:43:23,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554101535] [2024-10-24 01:43:23,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:23,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:43:23,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:23,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:43:23,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:43:23,948 INFO L87 Difference]: Start difference. First operand 47093 states and 65444 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:24,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:24,802 INFO L93 Difference]: Finished difference Result 139221 states and 191745 transitions. [2024-10-24 01:43:24,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 01:43:24,803 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-10-24 01:43:24,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:25,016 INFO L225 Difference]: With dead ends: 139221 [2024-10-24 01:43:25,016 INFO L226 Difference]: Without dead ends: 121938 [2024-10-24 01:43:25,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:43:25,069 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 1537 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1537 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:25,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1537 Valid, 471 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:43:25,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121938 states. [2024-10-24 01:43:26,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121938 to 47289. [2024-10-24 01:43:26,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47289 states, 47288 states have (on average 1.3892742344780917) internal successors, (65696), 47288 states have internal predecessors, (65696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:26,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47289 states to 47289 states and 65696 transitions. [2024-10-24 01:43:26,504 INFO L78 Accepts]: Start accepts. Automaton has 47289 states and 65696 transitions. Word has length 74 [2024-10-24 01:43:26,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:26,504 INFO L471 AbstractCegarLoop]: Abstraction has 47289 states and 65696 transitions. [2024-10-24 01:43:26,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:26,504 INFO L276 IsEmpty]: Start isEmpty. Operand 47289 states and 65696 transitions. [2024-10-24 01:43:26,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-24 01:43:26,510 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:26,510 INFO L215 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] [2024-10-24 01:43:26,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 01:43:26,510 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:26,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:26,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1896213327, now seen corresponding path program 1 times [2024-10-24 01:43:26,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:26,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588288463] [2024-10-24 01:43:26,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:26,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:26,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:26,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:26,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:26,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588288463] [2024-10-24 01:43:26,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588288463] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:26,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:26,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:43:26,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131707907] [2024-10-24 01:43:26,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:26,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:43:26,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:26,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:43:26,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:43:26,612 INFO L87 Difference]: Start difference. First operand 47289 states and 65696 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:27,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:27,118 INFO L93 Difference]: Finished difference Result 118005 states and 162260 transitions. [2024-10-24 01:43:27,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 01:43:27,118 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-10-24 01:43:27,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:27,229 INFO L225 Difference]: With dead ends: 118005 [2024-10-24 01:43:27,230 INFO L226 Difference]: Without dead ends: 90412 [2024-10-24 01:43:27,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:43:27,268 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 1255 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:27,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1255 Valid, 392 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:43:27,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90412 states. [2024-10-24 01:43:28,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90412 to 47339. [2024-10-24 01:43:28,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47339 states, 47338 states have (on average 1.3890743166166717) internal successors, (65756), 47338 states have internal predecessors, (65756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:28,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47339 states to 47339 states and 65756 transitions. [2024-10-24 01:43:28,176 INFO L78 Accepts]: Start accepts. Automaton has 47339 states and 65756 transitions. Word has length 74 [2024-10-24 01:43:28,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:28,176 INFO L471 AbstractCegarLoop]: Abstraction has 47339 states and 65756 transitions. [2024-10-24 01:43:28,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:28,176 INFO L276 IsEmpty]: Start isEmpty. Operand 47339 states and 65756 transitions. [2024-10-24 01:43:28,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-24 01:43:28,182 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:28,182 INFO L215 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] [2024-10-24 01:43:28,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 01:43:28,182 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:28,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:28,183 INFO L85 PathProgramCache]: Analyzing trace with hash -97924719, now seen corresponding path program 1 times [2024-10-24 01:43:28,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:28,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716667471] [2024-10-24 01:43:28,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:28,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:28,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:28,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:28,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:28,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716667471] [2024-10-24 01:43:28,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716667471] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:28,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:28,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:43:28,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690931591] [2024-10-24 01:43:28,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:28,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:43:28,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:28,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:43:28,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:43:28,277 INFO L87 Difference]: Start difference. First operand 47339 states and 65756 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:29,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:29,131 INFO L93 Difference]: Finished difference Result 112109 states and 153792 transitions. [2024-10-24 01:43:29,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 01:43:29,131 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-10-24 01:43:29,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:29,274 INFO L225 Difference]: With dead ends: 112109 [2024-10-24 01:43:29,274 INFO L226 Difference]: Without dead ends: 103198 [2024-10-24 01:43:29,299 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:43:29,300 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 1458 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1458 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:29,300 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1458 Valid, 438 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:43:29,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103198 states. [2024-10-24 01:43:30,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103198 to 47721. [2024-10-24 01:43:30,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47721 states, 47720 states have (on average 1.387782900251467) internal successors, (66225), 47720 states have internal predecessors, (66225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:30,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47721 states to 47721 states and 66225 transitions. [2024-10-24 01:43:30,492 INFO L78 Accepts]: Start accepts. Automaton has 47721 states and 66225 transitions. Word has length 74 [2024-10-24 01:43:30,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:30,492 INFO L471 AbstractCegarLoop]: Abstraction has 47721 states and 66225 transitions. [2024-10-24 01:43:30,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:30,492 INFO L276 IsEmpty]: Start isEmpty. Operand 47721 states and 66225 transitions. [2024-10-24 01:43:30,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-24 01:43:30,500 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:30,500 INFO L215 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] [2024-10-24 01:43:30,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 01:43:30,500 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:30,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:30,501 INFO L85 PathProgramCache]: Analyzing trace with hash 547595205, now seen corresponding path program 1 times [2024-10-24 01:43:30,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:30,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979456622] [2024-10-24 01:43:30,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:30,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:30,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:30,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:30,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979456622] [2024-10-24 01:43:30,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979456622] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:30,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:30,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 01:43:30,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581738767] [2024-10-24 01:43:30,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:30,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 01:43:30,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:30,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 01:43:30,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:43:30,777 INFO L87 Difference]: Start difference. First operand 47721 states and 66225 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:31,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:31,381 INFO L93 Difference]: Finished difference Result 82378 states and 113805 transitions. [2024-10-24 01:43:31,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 01:43:31,381 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-10-24 01:43:31,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:31,470 INFO L225 Difference]: With dead ends: 82378 [2024-10-24 01:43:31,470 INFO L226 Difference]: Without dead ends: 69745 [2024-10-24 01:43:31,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-10-24 01:43:31,500 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 946 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:31,500 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [946 Valid, 754 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:43:31,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69745 states. [2024-10-24 01:43:32,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69745 to 47428. [2024-10-24 01:43:32,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47428 states, 47427 states have (on average 1.3875851308326481) internal successors, (65809), 47427 states have internal predecessors, (65809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:32,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47428 states to 47428 states and 65809 transitions. [2024-10-24 01:43:32,404 INFO L78 Accepts]: Start accepts. Automaton has 47428 states and 65809 transitions. Word has length 76 [2024-10-24 01:43:32,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:32,405 INFO L471 AbstractCegarLoop]: Abstraction has 47428 states and 65809 transitions. [2024-10-24 01:43:32,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:32,405 INFO L276 IsEmpty]: Start isEmpty. Operand 47428 states and 65809 transitions. [2024-10-24 01:43:32,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-24 01:43:32,411 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:32,411 INFO L215 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] [2024-10-24 01:43:32,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 01:43:32,411 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:32,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:32,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1053820475, now seen corresponding path program 1 times [2024-10-24 01:43:32,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:32,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760783697] [2024-10-24 01:43:32,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:32,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:32,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:32,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:32,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:32,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760783697] [2024-10-24 01:43:32,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760783697] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:32,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:32,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 01:43:32,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803416782] [2024-10-24 01:43:32,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:32,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 01:43:32,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:32,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 01:43:32,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:43:32,641 INFO L87 Difference]: Start difference. First operand 47428 states and 65809 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:33,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:33,686 INFO L93 Difference]: Finished difference Result 119595 states and 165728 transitions. [2024-10-24 01:43:33,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 01:43:33,688 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-10-24 01:43:33,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:33,785 INFO L225 Difference]: With dead ends: 119595 [2024-10-24 01:43:33,785 INFO L226 Difference]: Without dead ends: 77994 [2024-10-24 01:43:33,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-10-24 01:43:33,812 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 1114 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1114 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:33,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1114 Valid, 788 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:43:33,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77994 states. [2024-10-24 01:43:34,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77994 to 47323. [2024-10-24 01:43:34,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47323 states, 47322 states have (on average 1.3869236296014538) internal successors, (65632), 47322 states have internal predecessors, (65632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:34,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47323 states to 47323 states and 65632 transitions. [2024-10-24 01:43:34,760 INFO L78 Accepts]: Start accepts. Automaton has 47323 states and 65632 transitions. Word has length 76 [2024-10-24 01:43:34,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:34,760 INFO L471 AbstractCegarLoop]: Abstraction has 47323 states and 65632 transitions. [2024-10-24 01:43:34,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:34,760 INFO L276 IsEmpty]: Start isEmpty. Operand 47323 states and 65632 transitions. [2024-10-24 01:43:34,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-24 01:43:34,768 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:34,768 INFO L215 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] [2024-10-24 01:43:34,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 01:43:34,768 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:34,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:34,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1056205913, now seen corresponding path program 1 times [2024-10-24 01:43:34,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:34,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549205567] [2024-10-24 01:43:34,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:34,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:35,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:35,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:35,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549205567] [2024-10-24 01:43:35,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549205567] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:35,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:35,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 01:43:35,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81373594] [2024-10-24 01:43:35,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:35,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 01:43:35,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:35,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 01:43:35,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:43:35,126 INFO L87 Difference]: Start difference. First operand 47323 states and 65632 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:35,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:35,939 INFO L93 Difference]: Finished difference Result 104011 states and 144090 transitions. [2024-10-24 01:43:35,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 01:43:35,940 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-10-24 01:43:35,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:36,043 INFO L225 Difference]: With dead ends: 104011 [2024-10-24 01:43:36,043 INFO L226 Difference]: Without dead ends: 74268 [2024-10-24 01:43:36,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:43:36,083 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 740 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:36,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [740 Valid, 1023 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 814 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 01:43:36,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74268 states. [2024-10-24 01:43:36,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74268 to 47282. [2024-10-24 01:43:37,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47282 states, 47281 states have (on average 1.3856940420041877) internal successors, (65517), 47281 states have internal predecessors, (65517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:37,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47282 states to 47282 states and 65517 transitions. [2024-10-24 01:43:37,059 INFO L78 Accepts]: Start accepts. Automaton has 47282 states and 65517 transitions. Word has length 76 [2024-10-24 01:43:37,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:37,060 INFO L471 AbstractCegarLoop]: Abstraction has 47282 states and 65517 transitions. [2024-10-24 01:43:37,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:37,060 INFO L276 IsEmpty]: Start isEmpty. Operand 47282 states and 65517 transitions. [2024-10-24 01:43:37,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-24 01:43:37,065 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:37,065 INFO L215 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] [2024-10-24 01:43:37,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-24 01:43:37,065 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:37,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:37,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1555686085, now seen corresponding path program 1 times [2024-10-24 01:43:37,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:37,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600711996] [2024-10-24 01:43:37,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:37,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:37,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:37,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:37,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:37,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600711996] [2024-10-24 01:43:37,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600711996] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:37,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:37,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 01:43:37,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914931862] [2024-10-24 01:43:37,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:37,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 01:43:37,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:37,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 01:43:37,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:43:37,300 INFO L87 Difference]: Start difference. First operand 47282 states and 65517 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:38,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:38,075 INFO L93 Difference]: Finished difference Result 123215 states and 170494 transitions. [2024-10-24 01:43:38,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 01:43:38,075 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-10-24 01:43:38,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:38,172 INFO L225 Difference]: With dead ends: 123215 [2024-10-24 01:43:38,173 INFO L226 Difference]: Without dead ends: 77382 [2024-10-24 01:43:38,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:43:38,578 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 756 mSDsluCounter, 909 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:38,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [756 Valid, 1091 Invalid, 870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 01:43:38,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77382 states. [2024-10-24 01:43:39,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77382 to 46924. [2024-10-24 01:43:39,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46924 states, 46923 states have (on average 1.3856104682138823) internal successors, (65017), 46923 states have internal predecessors, (65017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:39,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46924 states to 46924 states and 65017 transitions. [2024-10-24 01:43:39,232 INFO L78 Accepts]: Start accepts. Automaton has 46924 states and 65017 transitions. Word has length 76 [2024-10-24 01:43:39,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:39,233 INFO L471 AbstractCegarLoop]: Abstraction has 46924 states and 65017 transitions. [2024-10-24 01:43:39,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:39,233 INFO L276 IsEmpty]: Start isEmpty. Operand 46924 states and 65017 transitions. [2024-10-24 01:43:39,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-24 01:43:39,237 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:39,237 INFO L215 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] [2024-10-24 01:43:39,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-24 01:43:39,237 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:39,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:39,238 INFO L85 PathProgramCache]: Analyzing trace with hash 32988097, now seen corresponding path program 1 times [2024-10-24 01:43:39,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:39,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237664138] [2024-10-24 01:43:39,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:39,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:39,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:40,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:40,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:40,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237664138] [2024-10-24 01:43:40,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237664138] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:40,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:40,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 01:43:40,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805729981] [2024-10-24 01:43:40,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:40,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 01:43:40,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:40,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 01:43:40,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-24 01:43:40,046 INFO L87 Difference]: Start difference. First operand 46924 states and 65017 transitions. Second operand has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:40,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:40,792 INFO L93 Difference]: Finished difference Result 86156 states and 119411 transitions. [2024-10-24 01:43:40,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:43:40,793 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-10-24 01:43:40,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:40,921 INFO L225 Difference]: With dead ends: 86156 [2024-10-24 01:43:40,921 INFO L226 Difference]: Without dead ends: 80160 [2024-10-24 01:43:40,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-24 01:43:40,957 INFO L432 NwaCegarLoop]: 317 mSDtfsCounter, 1337 mSDsluCounter, 1857 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 2174 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:40,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1337 Valid, 2174 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:43:41,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80160 states. [2024-10-24 01:43:41,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80160 to 46937. [2024-10-24 01:43:41,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46937 states, 46936 states have (on average 1.385354525311062) internal successors, (65023), 46936 states have internal predecessors, (65023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:41,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46937 states to 46937 states and 65023 transitions. [2024-10-24 01:43:41,806 INFO L78 Accepts]: Start accepts. Automaton has 46937 states and 65023 transitions. Word has length 77 [2024-10-24 01:43:41,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:41,806 INFO L471 AbstractCegarLoop]: Abstraction has 46937 states and 65023 transitions. [2024-10-24 01:43:41,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:41,806 INFO L276 IsEmpty]: Start isEmpty. Operand 46937 states and 65023 transitions. [2024-10-24 01:43:41,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-24 01:43:41,811 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:41,811 INFO L215 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] [2024-10-24 01:43:41,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-24 01:43:41,811 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:41,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:41,812 INFO L85 PathProgramCache]: Analyzing trace with hash -922993607, now seen corresponding path program 1 times [2024-10-24 01:43:41,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:41,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32736727] [2024-10-24 01:43:41,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:41,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:41,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:42,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:42,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:42,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32736727] [2024-10-24 01:43:42,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32736727] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:42,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:42,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 01:43:42,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051645850] [2024-10-24 01:43:42,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:42,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 01:43:42,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:42,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 01:43:42,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-24 01:43:42,400 INFO L87 Difference]: Start difference. First operand 46937 states and 65023 transitions. Second operand has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:43,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:43,366 INFO L93 Difference]: Finished difference Result 108799 states and 150998 transitions. [2024-10-24 01:43:43,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:43:43,367 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-10-24 01:43:43,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:43,483 INFO L225 Difference]: With dead ends: 108799 [2024-10-24 01:43:43,483 INFO L226 Difference]: Without dead ends: 88984 [2024-10-24 01:43:43,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-24 01:43:43,522 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 1538 mSDsluCounter, 1412 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1538 SdHoareTripleChecker+Valid, 1684 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:43,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1538 Valid, 1684 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:43:43,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88984 states. [2024-10-24 01:43:44,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88984 to 46840. [2024-10-24 01:43:44,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46840 states, 46839 states have (on average 1.3856615213817545) internal successors, (64903), 46839 states have internal predecessors, (64903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:44,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46840 states to 46840 states and 64903 transitions. [2024-10-24 01:43:44,402 INFO L78 Accepts]: Start accepts. Automaton has 46840 states and 64903 transitions. Word has length 77 [2024-10-24 01:43:44,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:44,402 INFO L471 AbstractCegarLoop]: Abstraction has 46840 states and 64903 transitions. [2024-10-24 01:43:44,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:44,402 INFO L276 IsEmpty]: Start isEmpty. Operand 46840 states and 64903 transitions. [2024-10-24 01:43:44,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-24 01:43:44,406 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:44,406 INFO L215 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] [2024-10-24 01:43:44,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-24 01:43:44,407 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:44,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:44,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1122440523, now seen corresponding path program 1 times [2024-10-24 01:43:44,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:44,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230468721] [2024-10-24 01:43:44,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:44,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:44,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:44,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:44,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:44,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230468721] [2024-10-24 01:43:44,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230468721] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:44,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:44,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:43:44,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557459526] [2024-10-24 01:43:44,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:44,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:43:44,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:44,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:43:44,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:43:44,441 INFO L87 Difference]: Start difference. First operand 46840 states and 64903 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:45,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:45,143 INFO L93 Difference]: Finished difference Result 102513 states and 142286 transitions. [2024-10-24 01:43:45,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:43:45,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-10-24 01:43:45,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:45,233 INFO L225 Difference]: With dead ends: 102513 [2024-10-24 01:43:45,234 INFO L226 Difference]: Without dead ends: 74168 [2024-10-24 01:43:45,250 INFO L431 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 [2024-10-24 01:43:45,251 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 198 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:45,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 381 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:43:45,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74168 states. [2024-10-24 01:43:46,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74168 to 74022. [2024-10-24 01:43:46,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74022 states, 74021 states have (on average 1.3870928520284784) internal successors, (102674), 74021 states have internal predecessors, (102674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:46,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74022 states to 74022 states and 102674 transitions. [2024-10-24 01:43:46,324 INFO L78 Accepts]: Start accepts. Automaton has 74022 states and 102674 transitions. Word has length 78 [2024-10-24 01:43:46,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:46,324 INFO L471 AbstractCegarLoop]: Abstraction has 74022 states and 102674 transitions. [2024-10-24 01:43:46,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:46,324 INFO L276 IsEmpty]: Start isEmpty. Operand 74022 states and 102674 transitions. [2024-10-24 01:43:46,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-24 01:43:46,328 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:46,328 INFO L215 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] [2024-10-24 01:43:46,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-24 01:43:46,328 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:46,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:46,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1767675661, now seen corresponding path program 1 times [2024-10-24 01:43:46,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:46,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206202555] [2024-10-24 01:43:46,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:46,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:46,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:46,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:46,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:46,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206202555] [2024-10-24 01:43:46,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206202555] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:46,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:46,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:43:46,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466372944] [2024-10-24 01:43:46,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:46,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:43:46,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:46,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:43:46,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:43:46,363 INFO L87 Difference]: Start difference. First operand 74022 states and 102674 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:46,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:46,746 INFO L93 Difference]: Finished difference Result 157853 states and 218970 transitions. [2024-10-24 01:43:46,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:43:46,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-10-24 01:43:46,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:46,922 INFO L225 Difference]: With dead ends: 157853 [2024-10-24 01:43:46,922 INFO L226 Difference]: Without dead ends: 108387 [2024-10-24 01:43:46,976 INFO L431 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 [2024-10-24 01:43:46,977 INFO L432 NwaCegarLoop]: 286 mSDtfsCounter, 182 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:46,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 419 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:43:47,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108387 states. [2024-10-24 01:43:48,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108387 to 108005. [2024-10-24 01:43:48,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108005 states, 108004 states have (on average 1.3898281545127957) internal successors, (150107), 108004 states have internal predecessors, (150107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:48,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108005 states to 108005 states and 150107 transitions. [2024-10-24 01:43:48,697 INFO L78 Accepts]: Start accepts. Automaton has 108005 states and 150107 transitions. Word has length 78 [2024-10-24 01:43:48,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:48,697 INFO L471 AbstractCegarLoop]: Abstraction has 108005 states and 150107 transitions. [2024-10-24 01:43:48,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:48,698 INFO L276 IsEmpty]: Start isEmpty. Operand 108005 states and 150107 transitions. [2024-10-24 01:43:48,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-24 01:43:48,703 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:48,703 INFO L215 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] [2024-10-24 01:43:48,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-24 01:43:48,703 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:48,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:48,703 INFO L85 PathProgramCache]: Analyzing trace with hash 237474817, now seen corresponding path program 1 times [2024-10-24 01:43:48,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:48,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312846317] [2024-10-24 01:43:48,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:48,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:48,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:48,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:48,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:48,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312846317] [2024-10-24 01:43:48,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312846317] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:48,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:48,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:43:48,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904111364] [2024-10-24 01:43:48,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:48,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:43:48,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:48,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:43:48,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:43:48,749 INFO L87 Difference]: Start difference. First operand 108005 states and 150107 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:49,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:49,654 INFO L93 Difference]: Finished difference Result 211282 states and 293939 transitions. [2024-10-24 01:43:49,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:43:49,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-10-24 01:43:49,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:49,882 INFO L225 Difference]: With dead ends: 211282 [2024-10-24 01:43:49,882 INFO L226 Difference]: Without dead ends: 144077 [2024-10-24 01:43:49,946 INFO L431 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 [2024-10-24 01:43:49,946 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 171 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:49,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 354 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:43:50,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144077 states. [2024-10-24 01:43:51,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144077 to 92318. [2024-10-24 01:43:51,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92318 states, 92317 states have (on average 1.3930370354322605) internal successors, (128601), 92317 states have internal predecessors, (128601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:51,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92318 states to 92318 states and 128601 transitions. [2024-10-24 01:43:51,603 INFO L78 Accepts]: Start accepts. Automaton has 92318 states and 128601 transitions. Word has length 81 [2024-10-24 01:43:51,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:51,603 INFO L471 AbstractCegarLoop]: Abstraction has 92318 states and 128601 transitions. [2024-10-24 01:43:51,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:51,604 INFO L276 IsEmpty]: Start isEmpty. Operand 92318 states and 128601 transitions. [2024-10-24 01:43:51,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-24 01:43:51,608 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:51,608 INFO L215 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] [2024-10-24 01:43:51,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-24 01:43:51,608 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:51,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:51,609 INFO L85 PathProgramCache]: Analyzing trace with hash 356146503, now seen corresponding path program 1 times [2024-10-24 01:43:51,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:51,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835121965] [2024-10-24 01:43:51,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:51,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:51,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:52,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:52,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:52,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835121965] [2024-10-24 01:43:52,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835121965] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:52,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:52,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:43:52,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116695151] [2024-10-24 01:43:52,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:52,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:43:52,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:52,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:43:52,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:43:52,072 INFO L87 Difference]: Start difference. First operand 92318 states and 128601 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:52,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:52,399 INFO L93 Difference]: Finished difference Result 135817 states and 188720 transitions. [2024-10-24 01:43:52,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:43:52,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-10-24 01:43:52,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:52,501 INFO L225 Difference]: With dead ends: 135817 [2024-10-24 01:43:52,501 INFO L226 Difference]: Without dead ends: 81553 [2024-10-24 01:43:52,548 INFO L431 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 [2024-10-24 01:43:52,549 INFO L432 NwaCegarLoop]: 303 mSDtfsCounter, 146 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:52,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 507 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:43:52,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81553 states. [2024-10-24 01:43:53,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81553 to 81551. [2024-10-24 01:43:53,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81551 states, 81550 states have (on average 1.3775475168608216) internal successors, (112339), 81550 states have internal predecessors, (112339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:53,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81551 states to 81551 states and 112339 transitions. [2024-10-24 01:43:53,848 INFO L78 Accepts]: Start accepts. Automaton has 81551 states and 112339 transitions. Word has length 81 [2024-10-24 01:43:53,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:53,848 INFO L471 AbstractCegarLoop]: Abstraction has 81551 states and 112339 transitions. [2024-10-24 01:43:53,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:53,849 INFO L276 IsEmpty]: Start isEmpty. Operand 81551 states and 112339 transitions. [2024-10-24 01:43:53,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-24 01:43:53,856 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:53,856 INFO L215 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] [2024-10-24 01:43:53,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-24 01:43:53,856 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:53,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:53,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1696216112, now seen corresponding path program 1 times [2024-10-24 01:43:53,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:53,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824159522] [2024-10-24 01:43:53,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:53,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:54,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:54,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:54,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824159522] [2024-10-24 01:43:54,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824159522] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:54,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:54,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 01:43:54,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127074952] [2024-10-24 01:43:54,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:54,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 01:43:54,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:54,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 01:43:54,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-10-24 01:43:54,378 INFO L87 Difference]: Start difference. First operand 81551 states and 112339 transitions. Second operand has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:55,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:55,664 INFO L93 Difference]: Finished difference Result 148096 states and 203476 transitions. [2024-10-24 01:43:55,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 01:43:55,665 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-10-24 01:43:55,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:55,850 INFO L225 Difference]: With dead ends: 148096 [2024-10-24 01:43:55,850 INFO L226 Difference]: Without dead ends: 136529 [2024-10-24 01:43:55,877 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2024-10-24 01:43:55,878 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 1810 mSDsluCounter, 1702 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1810 SdHoareTripleChecker+Valid, 1946 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:55,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1810 Valid, 1946 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:43:55,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136529 states. [2024-10-24 01:43:57,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136529 to 80381. [2024-10-24 01:43:57,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80381 states, 80380 states have (on average 1.3780791241602388) internal successors, (110770), 80380 states have internal predecessors, (110770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:57,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80381 states to 80381 states and 110770 transitions. [2024-10-24 01:43:57,256 INFO L78 Accepts]: Start accepts. Automaton has 80381 states and 110770 transitions. Word has length 82 [2024-10-24 01:43:57,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:57,256 INFO L471 AbstractCegarLoop]: Abstraction has 80381 states and 110770 transitions. [2024-10-24 01:43:57,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:57,256 INFO L276 IsEmpty]: Start isEmpty. Operand 80381 states and 110770 transitions. [2024-10-24 01:43:57,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 01:43:57,270 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:57,270 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:43:57,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-24 01:43:57,271 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:57,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:57,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1368312261, now seen corresponding path program 1 times [2024-10-24 01:43:57,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:57,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283063711] [2024-10-24 01:43:57,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:57,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:57,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:57,367 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:57,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:57,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283063711] [2024-10-24 01:43:57,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283063711] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:57,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:57,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:43:57,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176893860] [2024-10-24 01:43:57,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:57,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:43:57,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:57,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:43:57,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:43:57,370 INFO L87 Difference]: Start difference. First operand 80381 states and 110770 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:57,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:57,807 INFO L93 Difference]: Finished difference Result 184252 states and 254895 transitions. [2024-10-24 01:43:57,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:43:57,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2024-10-24 01:43:57,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:57,995 INFO L225 Difference]: With dead ends: 184252 [2024-10-24 01:43:57,995 INFO L226 Difference]: Without dead ends: 131088 [2024-10-24 01:43:58,057 INFO L431 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 [2024-10-24 01:43:58,058 INFO L432 NwaCegarLoop]: 314 mSDtfsCounter, 125 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:58,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 504 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:43:58,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131088 states.