./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_floodmax.4.2.ufo.BOUNDED-8.pals.c.v+cfa-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_floodmax.4.2.ufo.BOUNDED-8.pals.c.v+cfa-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 7f1b18f4e40b5c65ba670d66c7cc7e7d02c6eca56baec4c2796c13c16b3d5c28 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 01:36:52,716 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 01:36:52,771 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 01:36:52,775 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 01:36:52,775 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 01:36:52,801 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 01:36:52,802 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 01:36:52,803 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 01:36:52,803 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 01:36:52,804 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 01:36:52,804 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 01:36:52,804 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 01:36:52,805 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 01:36:52,807 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 01:36:52,807 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 01:36:52,808 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 01:36:52,808 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 01:36:52,808 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 01:36:52,808 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 01:36:52,808 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 01:36:52,809 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 01:36:52,812 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 01:36:52,812 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 01:36:52,812 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 01:36:52,812 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 01:36:52,812 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 01:36:52,813 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 01:36:52,813 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 01:36:52,813 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 01:36:52,813 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 01:36:52,813 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 01:36:52,813 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 01:36:52,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:36:52,814 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 01:36:52,814 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 01:36:52,814 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 01:36:52,814 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 01:36:52,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 01:36:52,814 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 01:36:52,815 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 01:36:52,815 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 01:36:52,815 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 01:36:52,816 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f1b18f4e40b5c65ba670d66c7cc7e7d02c6eca56baec4c2796c13c16b3d5c28 [2024-10-24 01:36:53,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 01:36:53,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 01:36:53,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 01:36:53,050 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 01:36:53,051 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 01:36:53,052 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c [2024-10-24 01:36:54,412 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 01:36:54,616 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 01:36:54,616 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c [2024-10-24 01:36:54,637 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0d7bd57c/081baca736284831a773eaa67bc4b2bd/FLAG8afb09ee2 [2024-10-24 01:36:54,650 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0d7bd57c/081baca736284831a773eaa67bc4b2bd [2024-10-24 01:36:54,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 01:36:54,653 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 01:36:54,660 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 01:36:54,660 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 01:36:54,665 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 01:36:54,665 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:36:54" (1/1) ... [2024-10-24 01:36:54,668 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7088240c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:54, skipping insertion in model container [2024-10-24 01:36:54,668 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:36:54" (1/1) ... [2024-10-24 01:36:54,722 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 01:36:55,015 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_floodmax.4.2.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c[12834,12847] [2024-10-24 01:36:55,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:36:55,089 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 01:36:55,134 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_floodmax.4.2.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c[12834,12847] [2024-10-24 01:36:55,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:36:55,191 INFO L204 MainTranslator]: Completed translation [2024-10-24 01:36:55,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:55 WrapperNode [2024-10-24 01:36:55,192 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 01:36:55,193 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 01:36:55,194 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 01:36:55,194 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 01:36:55,199 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:55" (1/1) ... [2024-10-24 01:36:55,221 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:55" (1/1) ... [2024-10-24 01:36:55,296 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1363 [2024-10-24 01:36:55,297 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 01:36:55,297 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 01:36:55,297 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 01:36:55,297 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 01:36:55,314 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:55" (1/1) ... [2024-10-24 01:36:55,314 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:55" (1/1) ... [2024-10-24 01:36:55,324 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:55" (1/1) ... [2024-10-24 01:36:55,347 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 01:36:55,348 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:55" (1/1) ... [2024-10-24 01:36:55,348 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:55" (1/1) ... [2024-10-24 01:36:55,367 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:55" (1/1) ... [2024-10-24 01:36:55,379 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:55" (1/1) ... [2024-10-24 01:36:55,384 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:55" (1/1) ... [2024-10-24 01:36:55,388 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:55" (1/1) ... [2024-10-24 01:36:55,400 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 01:36:55,403 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 01:36:55,405 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 01:36:55,405 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 01:36:55,406 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:55" (1/1) ... [2024-10-24 01:36:55,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:36:55,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:36:55,440 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 01:36:55,447 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 01:36:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 01:36:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 01:36:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 01:36:55,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 01:36:55,615 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 01:36:55,617 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 01:36:56,576 INFO L? ?]: Removed 120 outVars from TransFormulas that were not future-live. [2024-10-24 01:36:56,576 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 01:36:56,664 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 01:36:56,668 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 01:36:56,668 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:36:56 BoogieIcfgContainer [2024-10-24 01:36:56,668 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 01:36:56,670 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 01:36:56,670 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 01:36:56,679 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 01:36:56,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:36:54" (1/3) ... [2024-10-24 01:36:56,680 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691f31f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:36:56, skipping insertion in model container [2024-10-24 01:36:56,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:55" (2/3) ... [2024-10-24 01:36:56,680 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691f31f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:36:56, skipping insertion in model container [2024-10-24 01:36:56,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:36:56" (3/3) ... [2024-10-24 01:36:56,681 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.2.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c [2024-10-24 01:36:56,696 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 01:36:56,697 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 01:36:56,778 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 01:36:56,785 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;@5be4cc5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 01:36:56,785 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 01:36:56,791 INFO L276 IsEmpty]: Start isEmpty. Operand has 317 states, 315 states have (on average 1.8095238095238095) internal successors, (570), 316 states have internal predecessors, (570), 0 states have call successors, (0), 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 01:36:56,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-24 01:36:56,808 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:36:56,809 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, 1, 1, 1, 1, 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 01:36:56,809 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:36:56,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:36:56,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1414953681, now seen corresponding path program 1 times [2024-10-24 01:36:56,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:36:56,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070146793] [2024-10-24 01:36:56,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:36:56,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:36:57,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:36:57,365 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 01:36:57,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:36:57,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070146793] [2024-10-24 01:36:57,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070146793] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:36:57,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:36:57,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:36:57,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743010173] [2024-10-24 01:36:57,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:36:57,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:36:57,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:36:57,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:36:57,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:36:57,406 INFO L87 Difference]: Start difference. First operand has 317 states, 315 states have (on average 1.8095238095238095) internal successors, (570), 316 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 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 01:36:57,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:36:57,514 INFO L93 Difference]: Finished difference Result 564 states and 987 transitions. [2024-10-24 01:36:57,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:36:57,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-10-24 01:36:57,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:36:57,529 INFO L225 Difference]: With dead ends: 564 [2024-10-24 01:36:57,533 INFO L226 Difference]: Without dead ends: 431 [2024-10-24 01:36:57,537 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 01:36:57,540 INFO L432 NwaCegarLoop]: 722 mSDtfsCounter, 221 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:36:57,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 1210 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:36:57,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2024-10-24 01:36:57,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 429. [2024-10-24 01:36:57,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 428 states have (on average 1.6658878504672898) internal successors, (713), 428 states have internal predecessors, (713), 0 states have call successors, (0), 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 01:36:57,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 713 transitions. [2024-10-24 01:36:57,602 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 713 transitions. Word has length 110 [2024-10-24 01:36:57,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:36:57,603 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 713 transitions. [2024-10-24 01:36:57,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 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 01:36:57,603 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 713 transitions. [2024-10-24 01:36:57,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-10-24 01:36:57,605 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:36:57,606 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, 1, 1, 1, 1, 1, 1, 1, 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 01:36:57,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 01:36:57,606 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:36:57,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:36:57,607 INFO L85 PathProgramCache]: Analyzing trace with hash 512229007, now seen corresponding path program 1 times [2024-10-24 01:36:57,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:36:57,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079436480] [2024-10-24 01:36:57,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:36:57,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:36:57,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:36:57,843 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 01:36:57,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:36:57,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079436480] [2024-10-24 01:36:57,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079436480] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:36:57,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:36:57,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:36:57,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822758072] [2024-10-24 01:36:57,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:36:57,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:36:57,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:36:57,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:36:57,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:36:57,848 INFO L87 Difference]: Start difference. First operand 429 states and 713 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 01:36:57,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:36:57,893 INFO L93 Difference]: Finished difference Result 659 states and 1104 transitions. [2024-10-24 01:36:57,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:36:57,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2024-10-24 01:36:57,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:36:57,898 INFO L225 Difference]: With dead ends: 659 [2024-10-24 01:36:57,899 INFO L226 Difference]: Without dead ends: 532 [2024-10-24 01:36:57,900 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 01:36:57,901 INFO L432 NwaCegarLoop]: 683 mSDtfsCounter, 196 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:36:57,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 1171 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:36:57,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-10-24 01:36:57,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 530. [2024-10-24 01:36:57,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 529 states have (on average 1.6729678638941399) internal successors, (885), 529 states have internal predecessors, (885), 0 states have call successors, (0), 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 01:36:57,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 885 transitions. [2024-10-24 01:36:57,923 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 885 transitions. Word has length 113 [2024-10-24 01:36:57,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:36:57,924 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 885 transitions. [2024-10-24 01:36:57,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 01:36:57,924 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 885 transitions. [2024-10-24 01:36:57,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-10-24 01:36:57,925 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:36:57,926 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, 1, 1, 1, 1, 1, 1, 1, 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 01:36:57,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 01:36:57,926 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:36:57,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:36:57,926 INFO L85 PathProgramCache]: Analyzing trace with hash 850243325, now seen corresponding path program 1 times [2024-10-24 01:36:57,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:36:57,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023937217] [2024-10-24 01:36:57,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:36:57,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:36:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:36:58,108 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 01:36:58,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:36:58,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023937217] [2024-10-24 01:36:58,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023937217] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:36:58,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:36:58,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:36:58,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321839999] [2024-10-24 01:36:58,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:36:58,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:36:58,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:36:58,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:36:58,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:36:58,113 INFO L87 Difference]: Start difference. First operand 530 states and 885 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 01:36:58,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:36:58,145 INFO L93 Difference]: Finished difference Result 1183 states and 1984 transitions. [2024-10-24 01:36:58,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:36:58,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2024-10-24 01:36:58,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:36:58,149 INFO L225 Difference]: With dead ends: 1183 [2024-10-24 01:36:58,149 INFO L226 Difference]: Without dead ends: 843 [2024-10-24 01:36:58,151 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 01:36:58,154 INFO L432 NwaCegarLoop]: 663 mSDtfsCounter, 189 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:36:58,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 1149 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:36:58,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2024-10-24 01:36:58,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 841. [2024-10-24 01:36:58,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 840 states have (on average 1.6726190476190477) internal successors, (1405), 840 states have internal predecessors, (1405), 0 states have call successors, (0), 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 01:36:58,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1405 transitions. [2024-10-24 01:36:58,174 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1405 transitions. Word has length 113 [2024-10-24 01:36:58,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:36:58,174 INFO L471 AbstractCegarLoop]: Abstraction has 841 states and 1405 transitions. [2024-10-24 01:36:58,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 01:36:58,175 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1405 transitions. [2024-10-24 01:36:58,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-24 01:36:58,176 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:36:58,176 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:36:58,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 01:36:58,176 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:36:58,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:36:58,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1504406523, now seen corresponding path program 1 times [2024-10-24 01:36:58,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:36:58,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416584502] [2024-10-24 01:36:58,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:36:58,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:36:58,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:36:58,334 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 01:36:58,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:36:58,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416584502] [2024-10-24 01:36:58,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416584502] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:36:58,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:36:58,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:36:58,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763208329] [2024-10-24 01:36:58,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:36:58,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:36:58,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:36:58,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:36:58,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:36:58,338 INFO L87 Difference]: Start difference. First operand 841 states and 1405 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 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 01:36:58,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:36:58,369 INFO L93 Difference]: Finished difference Result 1461 states and 2451 transitions. [2024-10-24 01:36:58,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:36:58,370 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2024-10-24 01:36:58,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:36:58,375 INFO L225 Difference]: With dead ends: 1461 [2024-10-24 01:36:58,375 INFO L226 Difference]: Without dead ends: 1121 [2024-10-24 01:36:58,378 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 01:36:58,378 INFO L432 NwaCegarLoop]: 655 mSDtfsCounter, 190 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:36:58,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 1144 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:36:58,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2024-10-24 01:36:58,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 1119. [2024-10-24 01:36:58,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1119 states, 1118 states have (on average 1.6735241502683362) internal successors, (1871), 1118 states have internal predecessors, (1871), 0 states have call successors, (0), 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 01:36:58,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1119 states to 1119 states and 1871 transitions. [2024-10-24 01:36:58,403 INFO L78 Accepts]: Start accepts. Automaton has 1119 states and 1871 transitions. Word has length 116 [2024-10-24 01:36:58,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:36:58,405 INFO L471 AbstractCegarLoop]: Abstraction has 1119 states and 1871 transitions. [2024-10-24 01:36:58,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 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 01:36:58,405 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states and 1871 transitions. [2024-10-24 01:36:58,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-24 01:36:58,406 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:36:58,407 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:36:58,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 01:36:58,407 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:36:58,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:36:58,408 INFO L85 PathProgramCache]: Analyzing trace with hash 879320951, now seen corresponding path program 1 times [2024-10-24 01:36:58,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:36:58,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565192732] [2024-10-24 01:36:58,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:36:58,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:36:58,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:36:58,548 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 01:36:58,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:36:58,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565192732] [2024-10-24 01:36:58,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565192732] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:36:58,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:36:58,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:36:58,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128271392] [2024-10-24 01:36:58,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:36:58,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:36:58,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:36:58,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:36:58,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:36:58,550 INFO L87 Difference]: Start difference. First operand 1119 states and 1871 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 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 01:36:58,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:36:58,594 INFO L93 Difference]: Finished difference Result 2860 states and 4786 transitions. [2024-10-24 01:36:58,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:36:58,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2024-10-24 01:36:58,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:36:58,602 INFO L225 Difference]: With dead ends: 2860 [2024-10-24 01:36:58,602 INFO L226 Difference]: Without dead ends: 1949 [2024-10-24 01:36:58,604 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 01:36:58,606 INFO L432 NwaCegarLoop]: 636 mSDtfsCounter, 183 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:36:58,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 1123 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:36:58,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1949 states. [2024-10-24 01:36:58,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1949 to 1947. [2024-10-24 01:36:58,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1947 states, 1946 states have (on average 1.6659815005138747) internal successors, (3242), 1946 states have internal predecessors, (3242), 0 states have call successors, (0), 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 01:36:58,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1947 states to 1947 states and 3242 transitions. [2024-10-24 01:36:58,641 INFO L78 Accepts]: Start accepts. Automaton has 1947 states and 3242 transitions. Word has length 116 [2024-10-24 01:36:58,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:36:58,641 INFO L471 AbstractCegarLoop]: Abstraction has 1947 states and 3242 transitions. [2024-10-24 01:36:58,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 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 01:36:58,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1947 states and 3242 transitions. [2024-10-24 01:36:58,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-10-24 01:36:58,644 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:36:58,644 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:36:58,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 01:36:58,645 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:36:58,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:36:58,646 INFO L85 PathProgramCache]: Analyzing trace with hash 200690089, now seen corresponding path program 1 times [2024-10-24 01:36:58,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:36:58,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79989982] [2024-10-24 01:36:58,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:36:58,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:36:58,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:36:58,789 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 01:36:58,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:36:58,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79989982] [2024-10-24 01:36:58,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79989982] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:36:58,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:36:58,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:36:58,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717309799] [2024-10-24 01:36:58,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:36:58,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:36:58,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:36:58,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:36:58,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:36:58,793 INFO L87 Difference]: Start difference. First operand 1947 states and 3242 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 01:36:58,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:36:58,833 INFO L93 Difference]: Finished difference Result 3553 states and 5942 transitions. [2024-10-24 01:36:58,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:36:58,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2024-10-24 01:36:58,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:36:58,845 INFO L225 Difference]: With dead ends: 3553 [2024-10-24 01:36:58,845 INFO L226 Difference]: Without dead ends: 2642 [2024-10-24 01:36:58,848 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 01:36:58,849 INFO L432 NwaCegarLoop]: 627 mSDtfsCounter, 184 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:36:58,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 1117 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:36:58,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2642 states. [2024-10-24 01:36:58,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2642 to 2640. [2024-10-24 01:36:58,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2640 states, 2639 states have (on average 1.6661614247821144) internal successors, (4397), 2639 states have internal predecessors, (4397), 0 states have call successors, (0), 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 01:36:58,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2640 states to 2640 states and 4397 transitions. [2024-10-24 01:36:58,908 INFO L78 Accepts]: Start accepts. Automaton has 2640 states and 4397 transitions. Word has length 119 [2024-10-24 01:36:58,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:36:58,909 INFO L471 AbstractCegarLoop]: Abstraction has 2640 states and 4397 transitions. [2024-10-24 01:36:58,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 01:36:58,909 INFO L276 IsEmpty]: Start isEmpty. Operand 2640 states and 4397 transitions. [2024-10-24 01:36:58,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-10-24 01:36:58,910 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:36:58,910 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:36:58,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 01:36:58,911 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:36:58,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:36:58,911 INFO L85 PathProgramCache]: Analyzing trace with hash -582704553, now seen corresponding path program 1 times [2024-10-24 01:36:58,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:36:58,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979103793] [2024-10-24 01:36:58,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:36:58,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:36:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:36:59,061 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 01:36:59,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:36:59,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979103793] [2024-10-24 01:36:59,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979103793] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:36:59,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:36:59,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:36:59,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054674795] [2024-10-24 01:36:59,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:36:59,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:36:59,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:36:59,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:36:59,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:36:59,064 INFO L87 Difference]: Start difference. First operand 2640 states and 4397 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 01:36:59,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:36:59,111 INFO L93 Difference]: Finished difference Result 7225 states and 12004 transitions. [2024-10-24 01:36:59,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:36:59,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2024-10-24 01:36:59,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:36:59,125 INFO L225 Difference]: With dead ends: 7225 [2024-10-24 01:36:59,126 INFO L226 Difference]: Without dead ends: 4811 [2024-10-24 01:36:59,131 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 01:36:59,132 INFO L432 NwaCegarLoop]: 532 mSDtfsCounter, 177 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:36:59,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 1020 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:36:59,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4811 states. [2024-10-24 01:36:59,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4811 to 4809. [2024-10-24 01:36:59,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4809 states, 4808 states have (on average 1.6520382695507487) internal successors, (7943), 4808 states have internal predecessors, (7943), 0 states have call successors, (0), 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 01:36:59,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4809 states to 4809 states and 7943 transitions. [2024-10-24 01:36:59,247 INFO L78 Accepts]: Start accepts. Automaton has 4809 states and 7943 transitions. Word has length 119 [2024-10-24 01:36:59,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:36:59,248 INFO L471 AbstractCegarLoop]: Abstraction has 4809 states and 7943 transitions. [2024-10-24 01:36:59,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 01:36:59,248 INFO L276 IsEmpty]: Start isEmpty. Operand 4809 states and 7943 transitions. [2024-10-24 01:36:59,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-24 01:36:59,249 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:36:59,249 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:36:59,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 01:36:59,249 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:36:59,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:36:59,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1787106275, now seen corresponding path program 1 times [2024-10-24 01:36:59,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:36:59,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130454246] [2024-10-24 01:36:59,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:36:59,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:36:59,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:36:59,427 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 01:36:59,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:36:59,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130454246] [2024-10-24 01:36:59,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130454246] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:36:59,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:36:59,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:36:59,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297481451] [2024-10-24 01:36:59,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:36:59,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:36:59,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:36:59,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:36:59,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:36:59,430 INFO L87 Difference]: Start difference. First operand 4809 states and 7943 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 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 01:36:59,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:36:59,779 INFO L93 Difference]: Finished difference Result 29770 states and 49576 transitions. [2024-10-24 01:36:59,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 01:36:59,780 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2024-10-24 01:36:59,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:36:59,857 INFO L225 Difference]: With dead ends: 29770 [2024-10-24 01:36:59,858 INFO L226 Difference]: Without dead ends: 25187 [2024-10-24 01:36:59,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:36:59,877 INFO L432 NwaCegarLoop]: 512 mSDtfsCounter, 2298 mSDsluCounter, 3058 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2298 SdHoareTripleChecker+Valid, 3570 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:36:59,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2298 Valid, 3570 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:36:59,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25187 states. [2024-10-24 01:37:00,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25187 to 9235. [2024-10-24 01:37:00,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9235 states, 9234 states have (on average 1.6472817847086854) internal successors, (15211), 9234 states have internal predecessors, (15211), 0 states have call successors, (0), 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 01:37:00,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9235 states to 9235 states and 15211 transitions. [2024-10-24 01:37:00,204 INFO L78 Accepts]: Start accepts. Automaton has 9235 states and 15211 transitions. Word has length 122 [2024-10-24 01:37:00,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:37:00,204 INFO L471 AbstractCegarLoop]: Abstraction has 9235 states and 15211 transitions. [2024-10-24 01:37:00,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 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 01:37:00,205 INFO L276 IsEmpty]: Start isEmpty. Operand 9235 states and 15211 transitions. [2024-10-24 01:37:00,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-24 01:37:00,205 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:37:00,206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:37:00,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 01:37:00,206 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:37:00,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:37:00,206 INFO L85 PathProgramCache]: Analyzing trace with hash 367218292, now seen corresponding path program 1 times [2024-10-24 01:37:00,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:37:00,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844243126] [2024-10-24 01:37:00,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:37:00,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:37:00,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:37:00,334 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 01:37:00,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:37:00,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844243126] [2024-10-24 01:37:00,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844243126] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:37:00,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:37:00,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:37:00,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823033491] [2024-10-24 01:37:00,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:37:00,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:37:00,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:37:00,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:37:00,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:37:00,380 INFO L87 Difference]: Start difference. First operand 9235 states and 15211 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 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 01:37:00,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:37:00,537 INFO L93 Difference]: Finished difference Result 30028 states and 49738 transitions. [2024-10-24 01:37:00,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:37:00,538 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2024-10-24 01:37:00,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:37:00,575 INFO L225 Difference]: With dead ends: 30028 [2024-10-24 01:37:00,576 INFO L226 Difference]: Without dead ends: 21019 [2024-10-24 01:37:00,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:37:00,594 INFO L432 NwaCegarLoop]: 512 mSDtfsCounter, 624 mSDsluCounter, 1202 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 1714 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:37:00,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 1714 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:37:00,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21019 states. [2024-10-24 01:37:00,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21019 to 15090. [2024-10-24 01:37:00,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15090 states, 15089 states have (on average 1.648551925243555) internal successors, (24875), 15089 states have internal predecessors, (24875), 0 states have call successors, (0), 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 01:37:01,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15090 states to 15090 states and 24875 transitions. [2024-10-24 01:37:01,039 INFO L78 Accepts]: Start accepts. Automaton has 15090 states and 24875 transitions. Word has length 123 [2024-10-24 01:37:01,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:37:01,040 INFO L471 AbstractCegarLoop]: Abstraction has 15090 states and 24875 transitions. [2024-10-24 01:37:01,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 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 01:37:01,040 INFO L276 IsEmpty]: Start isEmpty. Operand 15090 states and 24875 transitions. [2024-10-24 01:37:01,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-24 01:37:01,041 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:37:01,041 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:37:01,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 01:37:01,042 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:37:01,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:37:01,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1011001031, now seen corresponding path program 1 times [2024-10-24 01:37:01,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:37:01,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050407357] [2024-10-24 01:37:01,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:37:01,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:37:01,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:37:01,159 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 01:37:01,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:37:01,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050407357] [2024-10-24 01:37:01,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050407357] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:37:01,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:37:01,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:37:01,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088424516] [2024-10-24 01:37:01,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:37:01,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:37:01,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:37:01,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:37:01,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:37:01,162 INFO L87 Difference]: Start difference. First operand 15090 states and 24875 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 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 01:37:01,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:37:01,276 INFO L93 Difference]: Finished difference Result 28696 states and 47477 transitions. [2024-10-24 01:37:01,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:37:01,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2024-10-24 01:37:01,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:37:01,315 INFO L225 Difference]: With dead ends: 28696 [2024-10-24 01:37:01,316 INFO L226 Difference]: Without dead ends: 20732 [2024-10-24 01:37:01,333 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 01:37:01,334 INFO L432 NwaCegarLoop]: 610 mSDtfsCounter, 178 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 1101 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:37:01,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 1101 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:37:01,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20732 states. [2024-10-24 01:37:01,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20732 to 20730. [2024-10-24 01:37:01,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20730 states, 20729 states have (on average 1.645906700757393) internal successors, (34118), 20729 states have internal predecessors, (34118), 0 states have call successors, (0), 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 01:37:01,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20730 states to 20730 states and 34118 transitions. [2024-10-24 01:37:01,812 INFO L78 Accepts]: Start accepts. Automaton has 20730 states and 34118 transitions. Word has length 123 [2024-10-24 01:37:01,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:37:01,812 INFO L471 AbstractCegarLoop]: Abstraction has 20730 states and 34118 transitions. [2024-10-24 01:37:01,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 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 01:37:01,813 INFO L276 IsEmpty]: Start isEmpty. Operand 20730 states and 34118 transitions. [2024-10-24 01:37:01,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-24 01:37:01,813 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:37:01,813 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:37:01,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 01:37:01,814 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:37:01,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:37:01,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1563638844, now seen corresponding path program 1 times [2024-10-24 01:37:01,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:37:01,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903343800] [2024-10-24 01:37:01,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:37:01,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:37:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:37:01,938 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 01:37:01,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:37:01,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903343800] [2024-10-24 01:37:01,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903343800] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:37:01,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:37:01,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:37:01,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198270755] [2024-10-24 01:37:01,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:37:01,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:37:01,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:37:01,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:37:01,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:37:01,940 INFO L87 Difference]: Start difference. First operand 20730 states and 34118 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 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 01:37:02,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:37:02,278 INFO L93 Difference]: Finished difference Result 67428 states and 111257 transitions. [2024-10-24 01:37:02,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:37:02,279 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2024-10-24 01:37:02,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:37:02,382 INFO L225 Difference]: With dead ends: 67428 [2024-10-24 01:37:02,382 INFO L226 Difference]: Without dead ends: 46942 [2024-10-24 01:37:02,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:37:02,424 INFO L432 NwaCegarLoop]: 517 mSDtfsCounter, 622 mSDsluCounter, 1098 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 1615 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:37:02,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 1615 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:37:02,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46942 states. [2024-10-24 01:37:03,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46942 to 33747. [2024-10-24 01:37:03,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33747 states, 33746 states have (on average 1.6413204527944052) internal successors, (55388), 33746 states have internal predecessors, (55388), 0 states have call successors, (0), 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 01:37:03,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33747 states to 33747 states and 55388 transitions. [2024-10-24 01:37:03,115 INFO L78 Accepts]: Start accepts. Automaton has 33747 states and 55388 transitions. Word has length 124 [2024-10-24 01:37:03,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:37:03,115 INFO L471 AbstractCegarLoop]: Abstraction has 33747 states and 55388 transitions. [2024-10-24 01:37:03,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 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 01:37:03,116 INFO L276 IsEmpty]: Start isEmpty. Operand 33747 states and 55388 transitions. [2024-10-24 01:37:03,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-24 01:37:03,116 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:37:03,117 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:37:03,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 01:37:03,117 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:37:03,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:37:03,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1286109893, now seen corresponding path program 1 times [2024-10-24 01:37:03,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:37:03,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363894029] [2024-10-24 01:37:03,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:37:03,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:37:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:37:03,373 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 01:37:03,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:37:03,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363894029] [2024-10-24 01:37:03,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363894029] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:37:03,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:37:03,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:37:03,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382417068] [2024-10-24 01:37:03,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:37:03,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:37:03,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:37:03,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:37:03,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:37:03,376 INFO L87 Difference]: Start difference. First operand 33747 states and 55388 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 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 01:37:03,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:37:03,849 INFO L93 Difference]: Finished difference Result 109322 states and 179873 transitions. [2024-10-24 01:37:03,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:37:03,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2024-10-24 01:37:03,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:37:04,023 INFO L225 Difference]: With dead ends: 109322 [2024-10-24 01:37:04,024 INFO L226 Difference]: Without dead ends: 75819 [2024-10-24 01:37:04,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:37:04,069 INFO L432 NwaCegarLoop]: 511 mSDtfsCounter, 620 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:37:04,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 1656 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:37:04,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75819 states. [2024-10-24 01:37:05,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75819 to 54640. [2024-10-24 01:37:05,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54640 states, 54639 states have (on average 1.636669777997401) internal successors, (89426), 54639 states have internal predecessors, (89426), 0 states have call successors, (0), 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 01:37:05,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54640 states to 54640 states and 89426 transitions. [2024-10-24 01:37:05,334 INFO L78 Accepts]: Start accepts. Automaton has 54640 states and 89426 transitions. Word has length 125 [2024-10-24 01:37:05,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:37:05,334 INFO L471 AbstractCegarLoop]: Abstraction has 54640 states and 89426 transitions. [2024-10-24 01:37:05,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 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 01:37:05,335 INFO L276 IsEmpty]: Start isEmpty. Operand 54640 states and 89426 transitions. [2024-10-24 01:37:05,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-24 01:37:05,336 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:37:05,336 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:37:05,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 01:37:05,336 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:37:05,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:37:05,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1268088981, now seen corresponding path program 1 times [2024-10-24 01:37:05,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:37:05,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455403464] [2024-10-24 01:37:05,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:37:05,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:37:05,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:37:05,623 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 01:37:05,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:37:05,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455403464] [2024-10-24 01:37:05,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455403464] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:37:05,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:37:05,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:37:05,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248103426] [2024-10-24 01:37:05,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:37:05,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:37:05,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:37:05,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:37:05,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:37:05,626 INFO L87 Difference]: Start difference. First operand 54640 states and 89426 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 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 01:37:06,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:37:06,242 INFO L93 Difference]: Finished difference Result 175048 states and 287185 transitions. [2024-10-24 01:37:06,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:37:06,242 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-10-24 01:37:06,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:37:06,634 INFO L225 Difference]: With dead ends: 175048 [2024-10-24 01:37:06,634 INFO L226 Difference]: Without dead ends: 120652 [2024-10-24 01:37:06,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:37:06,722 INFO L432 NwaCegarLoop]: 512 mSDtfsCounter, 618 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 1720 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:37:06,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 1720 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:37:06,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120652 states. [2024-10-24 01:37:08,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120652 to 87421. [2024-10-24 01:37:08,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87421 states, 87420 states have (on average 1.6320292839167239) internal successors, (142672), 87420 states have internal predecessors, (142672), 0 states have call successors, (0), 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 01:37:08,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87421 states to 87421 states and 142672 transitions. [2024-10-24 01:37:08,857 INFO L78 Accepts]: Start accepts. Automaton has 87421 states and 142672 transitions. Word has length 126 [2024-10-24 01:37:08,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:37:08,858 INFO L471 AbstractCegarLoop]: Abstraction has 87421 states and 142672 transitions. [2024-10-24 01:37:08,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 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 01:37:08,858 INFO L276 IsEmpty]: Start isEmpty. Operand 87421 states and 142672 transitions. [2024-10-24 01:37:08,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-24 01:37:08,859 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:37:08,860 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:37:08,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 01:37:08,860 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:37:08,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:37:08,861 INFO L85 PathProgramCache]: Analyzing trace with hash -380104196, now seen corresponding path program 1 times [2024-10-24 01:37:08,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:37:08,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200180026] [2024-10-24 01:37:08,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:37:08,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:37:08,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:37:09,150 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 01:37:09,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:37:09,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200180026] [2024-10-24 01:37:09,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200180026] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:37:09,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:37:09,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:37:09,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53431753] [2024-10-24 01:37:09,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:37:09,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:37:09,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:37:09,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:37:09,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:37:09,152 INFO L87 Difference]: Start difference. First operand 87421 states and 142672 transitions. Second operand has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 0 states have call successors, (0), 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 01:37:10,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:37:10,039 INFO L93 Difference]: Finished difference Result 174600 states and 284954 transitions. [2024-10-24 01:37:10,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:37:10,040 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2024-10-24 01:37:10,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:37:10,175 INFO L225 Difference]: With dead ends: 174600 [2024-10-24 01:37:10,175 INFO L226 Difference]: Without dead ends: 87423 [2024-10-24 01:37:10,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-10-24 01:37:10,235 INFO L432 NwaCegarLoop]: 515 mSDtfsCounter, 534 mSDsluCounter, 1476 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 1991 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:37:10,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 1991 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:37:10,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87423 states. [2024-10-24 01:37:11,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87423 to 87421. [2024-10-24 01:37:11,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87421 states, 87420 states have (on average 1.6248798901853123) internal successors, (142047), 87420 states have internal predecessors, (142047), 0 states have call successors, (0), 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 01:37:11,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87421 states to 87421 states and 142047 transitions. [2024-10-24 01:37:11,567 INFO L78 Accepts]: Start accepts. Automaton has 87421 states and 142047 transitions. Word has length 128 [2024-10-24 01:37:11,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:37:11,568 INFO L471 AbstractCegarLoop]: Abstraction has 87421 states and 142047 transitions. [2024-10-24 01:37:11,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 0 states have call successors, (0), 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 01:37:11,568 INFO L276 IsEmpty]: Start isEmpty. Operand 87421 states and 142047 transitions. [2024-10-24 01:37:11,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 01:37:11,569 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:37:11,569 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:37:11,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 01:37:11,570 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:37:11,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:37:11,570 INFO L85 PathProgramCache]: Analyzing trace with hash 96287021, now seen corresponding path program 1 times [2024-10-24 01:37:11,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:37:11,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054255756] [2024-10-24 01:37:11,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:37:11,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:37:11,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:37:11,824 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 01:37:11,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:37:11,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054255756] [2024-10-24 01:37:11,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054255756] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:37:11,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:37:11,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:37:11,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248259111] [2024-10-24 01:37:11,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:37:11,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:37:11,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:37:11,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:37:11,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:37:11,827 INFO L87 Difference]: Start difference. First operand 87421 states and 142047 transitions. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 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 01:37:12,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:37:12,942 INFO L93 Difference]: Finished difference Result 255494 states and 415622 transitions. [2024-10-24 01:37:12,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:37:12,943 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2024-10-24 01:37:12,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:37:13,253 INFO L225 Difference]: With dead ends: 255494 [2024-10-24 01:37:13,253 INFO L226 Difference]: Without dead ends: 168317 [2024-10-24 01:37:13,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-10-24 01:37:13,354 INFO L432 NwaCegarLoop]: 512 mSDtfsCounter, 703 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:37:13,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 2006 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:37:13,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168317 states. [2024-10-24 01:37:15,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168317 to 168315. [2024-10-24 01:37:15,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168315 states, 168314 states have (on average 1.6157182409068764) internal successors, (271948), 168314 states have internal predecessors, (271948), 0 states have call successors, (0), 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 01:37:16,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168315 states to 168315 states and 271948 transitions. [2024-10-24 01:37:16,358 INFO L78 Accepts]: Start accepts. Automaton has 168315 states and 271948 transitions. Word has length 131 [2024-10-24 01:37:16,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:37:16,358 INFO L471 AbstractCegarLoop]: Abstraction has 168315 states and 271948 transitions. [2024-10-24 01:37:16,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 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 01:37:16,359 INFO L276 IsEmpty]: Start isEmpty. Operand 168315 states and 271948 transitions. [2024-10-24 01:37:16,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-24 01:37:16,359 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:37:16,359 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:37:16,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 01:37:16,360 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:37:16,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:37:16,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1311978759, now seen corresponding path program 1 times [2024-10-24 01:37:16,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:37:16,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366158444] [2024-10-24 01:37:16,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:37:16,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:37:16,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:37:16,941 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 01:37:16,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:37:16,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366158444] [2024-10-24 01:37:16,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366158444] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:37:16,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:37:16,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:37:16,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517094993] [2024-10-24 01:37:16,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:37:16,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:37:16,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:37:16,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:37:16,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:37:16,945 INFO L87 Difference]: Start difference. First operand 168315 states and 271948 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 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 01:37:17,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:37:17,410 INFO L93 Difference]: Finished difference Result 172189 states and 277757 transitions. [2024-10-24 01:37:17,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:37:17,411 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2024-10-24 01:37:17,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:37:17,721 INFO L225 Difference]: With dead ends: 172189 [2024-10-24 01:37:17,721 INFO L226 Difference]: Without dead ends: 172187 [2024-10-24 01:37:17,790 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 01:37:17,791 INFO L432 NwaCegarLoop]: 520 mSDtfsCounter, 0 mSDsluCounter, 1545 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2065 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:37:17,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2065 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:37:18,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172187 states. [2024-10-24 01:37:19,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172187 to 172187. [2024-10-24 01:37:19,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172187 states, 172186 states have (on average 1.6017155866330597) internal successors, (275793), 172186 states have internal predecessors, (275793), 0 states have call successors, (0), 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 01:37:20,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172187 states to 172187 states and 275793 transitions. [2024-10-24 01:37:20,831 INFO L78 Accepts]: Start accepts. Automaton has 172187 states and 275793 transitions. Word has length 132 [2024-10-24 01:37:20,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:37:20,831 INFO L471 AbstractCegarLoop]: Abstraction has 172187 states and 275793 transitions. [2024-10-24 01:37:20,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 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 01:37:20,831 INFO L276 IsEmpty]: Start isEmpty. Operand 172187 states and 275793 transitions. [2024-10-24 01:37:20,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-24 01:37:20,856 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:37:20,860 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:37:20,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 01:37:20,861 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:37:20,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:37:20,861 INFO L85 PathProgramCache]: Analyzing trace with hash 695692182, now seen corresponding path program 1 times [2024-10-24 01:37:20,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:37:20,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630039106] [2024-10-24 01:37:20,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:37:20,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:37:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:37:21,274 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-24 01:37:21,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:37:21,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630039106] [2024-10-24 01:37:21,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630039106] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:37:21,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:37:21,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:37:21,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295904826] [2024-10-24 01:37:21,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:37:21,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:37:21,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:37:21,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:37:21,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:37:21,277 INFO L87 Difference]: Start difference. First operand 172187 states and 275793 transitions. Second operand has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 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 01:37:23,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:37:23,439 INFO L93 Difference]: Finished difference Result 469213 states and 754046 transitions. [2024-10-24 01:37:23,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:37:23,439 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 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 162 [2024-10-24 01:37:23,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:37:24,292 INFO L225 Difference]: With dead ends: 469213 [2024-10-24 01:37:24,292 INFO L226 Difference]: Without dead ends: 393561 [2024-10-24 01:37:24,411 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 01:37:24,413 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 1388 mSDsluCounter, 2225 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 2946 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:37:24,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1388 Valid, 2946 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:37:24,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393561 states. [2024-10-24 01:37:28,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393561 to 276619. [2024-10-24 01:37:28,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276619 states, 276618 states have (on average 1.6000947154559717) internal successors, (442615), 276618 states have internal predecessors, (442615), 0 states have call successors, (0), 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 01:37:29,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276619 states to 276619 states and 442615 transitions. [2024-10-24 01:37:29,953 INFO L78 Accepts]: Start accepts. Automaton has 276619 states and 442615 transitions. Word has length 162 [2024-10-24 01:37:29,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:37:29,957 INFO L471 AbstractCegarLoop]: Abstraction has 276619 states and 442615 transitions. [2024-10-24 01:37:29,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 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 01:37:29,958 INFO L276 IsEmpty]: Start isEmpty. Operand 276619 states and 442615 transitions. [2024-10-24 01:37:29,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-24 01:37:29,970 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:37:29,971 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:37:29,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 01:37:29,971 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:37:29,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:37:29,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1890482380, now seen corresponding path program 1 times [2024-10-24 01:37:29,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:37:29,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955390843] [2024-10-24 01:37:29,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:37:29,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:37:30,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:37:30,166 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-24 01:37:30,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:37:30,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955390843] [2024-10-24 01:37:30,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955390843] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:37:30,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:37:30,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:37:30,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578067625] [2024-10-24 01:37:30,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:37:30,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:37:30,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:37:30,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:37:30,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:37:30,168 INFO L87 Difference]: Start difference. First operand 276619 states and 442615 transitions. Second operand has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 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 01:37:32,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:37:32,273 INFO L93 Difference]: Finished difference Result 517341 states and 831674 transitions. [2024-10-24 01:37:32,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:37:32,274 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 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 162 [2024-10-24 01:37:32,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:37:33,138 INFO L225 Difference]: With dead ends: 517341 [2024-10-24 01:37:33,138 INFO L226 Difference]: Without dead ends: 441689 [2024-10-24 01:37:33,245 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 01:37:33,245 INFO L432 NwaCegarLoop]: 719 mSDtfsCounter, 1324 mSDsluCounter, 2228 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1324 SdHoareTripleChecker+Valid, 2947 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:37:33,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1324 Valid, 2947 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:37:33,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441689 states. [2024-10-24 01:37:38,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441689 to 373885. [2024-10-24 01:37:38,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373885 states, 373884 states have (on average 1.6012265836462647) internal successors, (598673), 373884 states have internal predecessors, (598673), 0 states have call successors, (0), 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 01:37:39,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373885 states to 373885 states and 598673 transitions. [2024-10-24 01:37:39,271 INFO L78 Accepts]: Start accepts. Automaton has 373885 states and 598673 transitions. Word has length 162 [2024-10-24 01:37:39,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:37:39,272 INFO L471 AbstractCegarLoop]: Abstraction has 373885 states and 598673 transitions. [2024-10-24 01:37:39,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 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 01:37:39,272 INFO L276 IsEmpty]: Start isEmpty. Operand 373885 states and 598673 transitions. [2024-10-24 01:37:39,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-24 01:37:39,279 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:37:39,279 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:37:39,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 01:37:39,279 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:37:39,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:37:39,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1721533206, now seen corresponding path program 1 times [2024-10-24 01:37:39,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:37:39,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884099028] [2024-10-24 01:37:39,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:37:39,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:37:39,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat