./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.5.3.ufo.BOUNDED-10.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.5.3.ufo.BOUNDED-10.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 b0d8ea4cdc3bda15400d6e2244fcbd08f3d025311aec8ca34fc5cb14e8ad1264 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 01:39:08,682 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 01:39:08,739 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 01:39:08,745 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 01:39:08,746 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 01:39:08,767 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 01:39:08,768 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 01:39:08,768 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 01:39:08,769 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 01:39:08,769 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 01:39:08,769 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 01:39:08,770 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 01:39:08,770 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 01:39:08,770 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 01:39:08,771 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 01:39:08,771 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 01:39:08,773 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 01:39:08,773 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 01:39:08,775 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 01:39:08,775 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 01:39:08,775 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 01:39:08,776 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 01:39:08,776 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 01:39:08,776 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 01:39:08,777 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 01:39:08,779 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 01:39:08,779 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 01:39:08,779 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 01:39:08,780 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 01:39:08,780 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 01:39:08,780 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 01:39:08,780 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 01:39:08,780 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:39:08,780 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 01:39:08,781 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 01:39:08,781 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 01:39:08,781 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 01:39:08,781 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 01:39:08,781 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 01:39:08,783 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 01:39:08,783 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 01:39:08,783 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 01:39:08,783 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0d8ea4cdc3bda15400d6e2244fcbd08f3d025311aec8ca34fc5cb14e8ad1264 [2024-10-24 01:39:08,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 01:39:09,024 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 01:39:09,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 01:39:09,028 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 01:39:09,028 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 01:39:09,029 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.5.3.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2024-10-24 01:39:10,415 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 01:39:10,716 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 01:39:10,717 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.5.3.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2024-10-24 01:39:10,738 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8d2df3c0/ec04e7ac10f94a6896ad703c44faed8f/FLAGbe301cd6e [2024-10-24 01:39:10,752 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8d2df3c0/ec04e7ac10f94a6896ad703c44faed8f [2024-10-24 01:39:10,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 01:39:10,756 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 01:39:10,758 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 01:39:10,758 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 01:39:10,762 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 01:39:10,762 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:39:10" (1/1) ... [2024-10-24 01:39:10,763 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@310a8bd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:10, skipping insertion in model container [2024-10-24 01:39:10,764 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:39:10" (1/1) ... [2024-10-24 01:39:10,833 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 01:39:11,184 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.5.3.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c[22084,22097] [2024-10-24 01:39:11,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:39:11,312 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 01:39:11,435 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.5.3.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c[22084,22097] [2024-10-24 01:39:11,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:39:11,522 INFO L204 MainTranslator]: Completed translation [2024-10-24 01:39:11,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:11 WrapperNode [2024-10-24 01:39:11,522 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 01:39:11,524 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 01:39:11,524 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 01:39:11,524 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 01:39:11,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:11" (1/1) ... [2024-10-24 01:39:11,562 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:11" (1/1) ... [2024-10-24 01:39:11,647 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2876 [2024-10-24 01:39:11,647 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 01:39:11,648 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 01:39:11,648 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 01:39:11,648 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 01:39:11,657 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:11" (1/1) ... [2024-10-24 01:39:11,658 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:11" (1/1) ... [2024-10-24 01:39:11,668 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:11" (1/1) ... [2024-10-24 01:39:11,710 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 01:39:11,710 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:11" (1/1) ... [2024-10-24 01:39:11,710 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:11" (1/1) ... [2024-10-24 01:39:11,743 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:11" (1/1) ... [2024-10-24 01:39:11,765 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:11" (1/1) ... [2024-10-24 01:39:11,778 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:11" (1/1) ... [2024-10-24 01:39:11,790 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:11" (1/1) ... [2024-10-24 01:39:11,801 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 01:39:11,803 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 01:39:11,803 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 01:39:11,803 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 01:39:11,804 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:11" (1/1) ... [2024-10-24 01:39:11,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:39:11,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:39:11,832 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 01:39:11,834 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 01:39:11,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 01:39:11,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 01:39:11,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 01:39:11,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 01:39:12,033 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 01:39:12,034 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 01:39:13,650 INFO L? ?]: Removed 252 outVars from TransFormulas that were not future-live. [2024-10-24 01:39:13,651 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 01:39:13,737 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 01:39:13,741 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 01:39:13,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:39:13 BoogieIcfgContainer [2024-10-24 01:39:13,742 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 01:39:13,743 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 01:39:13,744 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 01:39:13,747 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 01:39:13,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:39:10" (1/3) ... [2024-10-24 01:39:13,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa1072f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:39:13, skipping insertion in model container [2024-10-24 01:39:13,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:39:11" (2/3) ... [2024-10-24 01:39:13,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa1072f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:39:13, skipping insertion in model container [2024-10-24 01:39:13,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:39:13" (3/3) ... [2024-10-24 01:39:13,749 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.5.3.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2024-10-24 01:39:13,763 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 01:39:13,763 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 01:39:13,844 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 01:39:13,849 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;@1ab752d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 01:39:13,849 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 01:39:13,857 INFO L276 IsEmpty]: Start isEmpty. Operand has 734 states, 732 states have (on average 1.8442622950819672) internal successors, (1350), 733 states have internal predecessors, (1350), 0 states have call successors, (0), 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 01:39:13,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-10-24 01:39:13,878 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:13,879 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:39:13,880 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:39:13,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:13,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1014936547, now seen corresponding path program 1 times [2024-10-24 01:39:13,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:13,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072266767] [2024-10-24 01:39:13,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:13,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:14,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:14,647 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 01:39:14,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:14,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072266767] [2024-10-24 01:39:14,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072266767] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:14,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:14,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:39:14,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915635030] [2024-10-24 01:39:14,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:14,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:39:14,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:14,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:39:14,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:39:14,686 INFO L87 Difference]: Start difference. First operand has 734 states, 732 states have (on average 1.8442622950819672) internal successors, (1350), 733 states have internal predecessors, (1350), 0 states have call successors, (0), 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 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 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 01:39:14,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:14,793 INFO L93 Difference]: Finished difference Result 1105 states and 1979 transitions. [2024-10-24 01:39:14,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:39:14,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 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 203 [2024-10-24 01:39:14,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:14,824 INFO L225 Difference]: With dead ends: 1105 [2024-10-24 01:39:14,824 INFO L226 Difference]: Without dead ends: 909 [2024-10-24 01:39:14,829 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 01:39:14,832 INFO L432 NwaCegarLoop]: 1346 mSDtfsCounter, 338 mSDsluCounter, 1242 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 2588 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:14,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 2588 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:39:14,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2024-10-24 01:39:14,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 907. [2024-10-24 01:39:14,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 906 states have (on average 1.7428256070640176) internal successors, (1579), 906 states have internal predecessors, (1579), 0 states have call successors, (0), 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 01:39:14,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1579 transitions. [2024-10-24 01:39:14,909 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1579 transitions. Word has length 203 [2024-10-24 01:39:14,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:14,910 INFO L471 AbstractCegarLoop]: Abstraction has 907 states and 1579 transitions. [2024-10-24 01:39:14,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 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 01:39:14,911 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1579 transitions. [2024-10-24 01:39:14,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-10-24 01:39:14,916 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:14,916 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:39:14,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 01:39:14,917 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:39:14,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:14,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1480286202, now seen corresponding path program 1 times [2024-10-24 01:39:14,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:14,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74695342] [2024-10-24 01:39:14,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:14,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:15,498 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 01:39:15,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:15,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74695342] [2024-10-24 01:39:15,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74695342] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:15,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:15,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:39:15,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081076302] [2024-10-24 01:39:15,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:15,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:39:15,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:15,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:39:15,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:39:15,501 INFO L87 Difference]: Start difference. First operand 907 states and 1579 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 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 01:39:15,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:15,542 INFO L93 Difference]: Finished difference Result 1615 states and 2771 transitions. [2024-10-24 01:39:15,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:39:15,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 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 207 [2024-10-24 01:39:15,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:15,550 INFO L225 Difference]: With dead ends: 1615 [2024-10-24 01:39:15,550 INFO L226 Difference]: Without dead ends: 1250 [2024-10-24 01:39:15,551 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 01:39:15,554 INFO L432 NwaCegarLoop]: 1491 mSDtfsCounter, 292 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 2726 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 01:39:15,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 2726 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:39:15,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2024-10-24 01:39:15,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1248. [2024-10-24 01:39:15,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1248 states, 1247 states have (on average 1.7249398556535687) internal successors, (2151), 1247 states have internal predecessors, (2151), 0 states have call successors, (0), 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 01:39:15,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1248 states to 1248 states and 2151 transitions. [2024-10-24 01:39:15,582 INFO L78 Accepts]: Start accepts. Automaton has 1248 states and 2151 transitions. Word has length 207 [2024-10-24 01:39:15,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:15,583 INFO L471 AbstractCegarLoop]: Abstraction has 1248 states and 2151 transitions. [2024-10-24 01:39:15,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 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 01:39:15,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states and 2151 transitions. [2024-10-24 01:39:15,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-10-24 01:39:15,587 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:15,587 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:39:15,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 01:39:15,588 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:39:15,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:15,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1250992074, now seen corresponding path program 1 times [2024-10-24 01:39:15,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:15,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394682744] [2024-10-24 01:39:15,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:15,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:15,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:15,878 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 01:39:15,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:15,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394682744] [2024-10-24 01:39:15,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394682744] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:15,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:15,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:39:15,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401723054] [2024-10-24 01:39:15,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:15,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:39:15,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:15,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:39:15,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:39:15,882 INFO L87 Difference]: Start difference. First operand 1248 states and 2151 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 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 01:39:15,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:15,942 INFO L93 Difference]: Finished difference Result 1949 states and 3335 transitions. [2024-10-24 01:39:15,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:39:15,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 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 211 [2024-10-24 01:39:15,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:15,950 INFO L225 Difference]: With dead ends: 1949 [2024-10-24 01:39:15,950 INFO L226 Difference]: Without dead ends: 1584 [2024-10-24 01:39:15,951 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 01:39:15,953 INFO L432 NwaCegarLoop]: 1492 mSDtfsCounter, 293 mSDsluCounter, 1242 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 2734 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 01:39:15,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 2734 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:39:15,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2024-10-24 01:39:15,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 1582. [2024-10-24 01:39:15,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 1.7160025300442758) internal successors, (2713), 1581 states have internal predecessors, (2713), 0 states have call successors, (0), 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 01:39:15,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 2713 transitions. [2024-10-24 01:39:15,988 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 2713 transitions. Word has length 211 [2024-10-24 01:39:15,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:15,988 INFO L471 AbstractCegarLoop]: Abstraction has 1582 states and 2713 transitions. [2024-10-24 01:39:15,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 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 01:39:15,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 2713 transitions. [2024-10-24 01:39:15,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-10-24 01:39:15,994 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:15,995 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:39:15,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 01:39:15,995 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:39:15,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:15,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1198878909, now seen corresponding path program 1 times [2024-10-24 01:39:15,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:15,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634695383] [2024-10-24 01:39:15,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:15,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:16,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:16,251 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 01:39:16,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:16,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634695383] [2024-10-24 01:39:16,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634695383] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:16,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:16,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:39:16,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627204148] [2024-10-24 01:39:16,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:16,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:39:16,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:16,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:39:16,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:39:16,255 INFO L87 Difference]: Start difference. First operand 1582 states and 2713 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 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 01:39:16,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:16,413 INFO L93 Difference]: Finished difference Result 3522 states and 5969 transitions. [2024-10-24 01:39:16,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:39:16,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 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 211 [2024-10-24 01:39:16,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:16,421 INFO L225 Difference]: With dead ends: 3522 [2024-10-24 01:39:16,421 INFO L226 Difference]: Without dead ends: 2519 [2024-10-24 01:39:16,425 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 01:39:16,425 INFO L432 NwaCegarLoop]: 1284 mSDtfsCounter, 285 mSDsluCounter, 1236 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 2520 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:16,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 2520 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:39:16,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2024-10-24 01:39:16,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 2517. [2024-10-24 01:39:16,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2517 states, 2516 states have (on average 1.6975357710651828) internal successors, (4271), 2516 states have internal predecessors, (4271), 0 states have call successors, (0), 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 01:39:16,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2517 states to 2517 states and 4271 transitions. [2024-10-24 01:39:16,471 INFO L78 Accepts]: Start accepts. Automaton has 2517 states and 4271 transitions. Word has length 211 [2024-10-24 01:39:16,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:16,471 INFO L471 AbstractCegarLoop]: Abstraction has 2517 states and 4271 transitions. [2024-10-24 01:39:16,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 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 01:39:16,472 INFO L276 IsEmpty]: Start isEmpty. Operand 2517 states and 4271 transitions. [2024-10-24 01:39:16,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-10-24 01:39:16,474 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:16,474 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:39:16,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 01:39:16,475 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:39:16,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:16,475 INFO L85 PathProgramCache]: Analyzing trace with hash -735486374, now seen corresponding path program 1 times [2024-10-24 01:39:16,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:16,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855569897] [2024-10-24 01:39:16,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:16,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:16,720 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 01:39:16,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:16,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855569897] [2024-10-24 01:39:16,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855569897] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:16,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:16,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:39:16,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732217241] [2024-10-24 01:39:16,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:16,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:39:16,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:16,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:39:16,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:39:16,723 INFO L87 Difference]: Start difference. First operand 2517 states and 4271 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 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 01:39:16,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:16,774 INFO L93 Difference]: Finished difference Result 6261 states and 10517 transitions. [2024-10-24 01:39:16,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:39:16,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 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 215 [2024-10-24 01:39:16,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:16,787 INFO L225 Difference]: With dead ends: 6261 [2024-10-24 01:39:16,787 INFO L226 Difference]: Without dead ends: 4323 [2024-10-24 01:39:16,792 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 01:39:16,793 INFO L432 NwaCegarLoop]: 1399 mSDtfsCounter, 278 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 2636 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 01:39:16,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 2636 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:39:16,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4323 states. [2024-10-24 01:39:16,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4323 to 4321. [2024-10-24 01:39:16,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4321 states, 4320 states have (on average 1.6793981481481481) internal successors, (7255), 4320 states have internal predecessors, (7255), 0 states have call successors, (0), 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 01:39:16,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4321 states to 4321 states and 7255 transitions. [2024-10-24 01:39:16,876 INFO L78 Accepts]: Start accepts. Automaton has 4321 states and 7255 transitions. Word has length 215 [2024-10-24 01:39:16,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:16,876 INFO L471 AbstractCegarLoop]: Abstraction has 4321 states and 7255 transitions. [2024-10-24 01:39:16,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 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 01:39:16,876 INFO L276 IsEmpty]: Start isEmpty. Operand 4321 states and 7255 transitions. [2024-10-24 01:39:16,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-10-24 01:39:16,879 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:16,879 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:39:16,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 01:39:16,880 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:39:16,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:16,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1762205722, now seen corresponding path program 1 times [2024-10-24 01:39:16,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:16,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257251097] [2024-10-24 01:39:16,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:16,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:16,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:17,055 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 01:39:17,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:17,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257251097] [2024-10-24 01:39:17,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257251097] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:17,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:17,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:39:17,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895718580] [2024-10-24 01:39:17,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:17,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:39:17,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:17,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:39:17,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:39:17,058 INFO L87 Difference]: Start difference. First operand 4321 states and 7255 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 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 01:39:17,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:17,118 INFO L93 Difference]: Finished difference Result 7917 states and 13271 transitions. [2024-10-24 01:39:17,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:39:17,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 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 219 [2024-10-24 01:39:17,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:17,140 INFO L225 Difference]: With dead ends: 7917 [2024-10-24 01:39:17,141 INFO L226 Difference]: Without dead ends: 5979 [2024-10-24 01:39:17,146 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 01:39:17,147 INFO L432 NwaCegarLoop]: 1399 mSDtfsCounter, 279 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 2643 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 01:39:17,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 2643 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:39:17,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5979 states. [2024-10-24 01:39:17,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5979 to 5977. [2024-10-24 01:39:17,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5977 states, 5976 states have (on average 1.6741967871485943) internal successors, (10005), 5976 states have internal predecessors, (10005), 0 states have call successors, (0), 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 01:39:17,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5977 states to 5977 states and 10005 transitions. [2024-10-24 01:39:17,318 INFO L78 Accepts]: Start accepts. Automaton has 5977 states and 10005 transitions. Word has length 219 [2024-10-24 01:39:17,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:17,320 INFO L471 AbstractCegarLoop]: Abstraction has 5977 states and 10005 transitions. [2024-10-24 01:39:17,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 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 01:39:17,320 INFO L276 IsEmpty]: Start isEmpty. Operand 5977 states and 10005 transitions. [2024-10-24 01:39:17,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-10-24 01:39:17,323 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:17,323 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:39:17,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 01:39:17,323 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:39:17,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:17,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1811518115, now seen corresponding path program 1 times [2024-10-24 01:39:17,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:17,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545218616] [2024-10-24 01:39:17,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:17,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:17,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:17,503 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 01:39:17,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:17,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545218616] [2024-10-24 01:39:17,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545218616] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:17,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:17,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:39:17,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706976725] [2024-10-24 01:39:17,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:17,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:39:17,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:17,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:39:17,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:39:17,505 INFO L87 Difference]: Start difference. First operand 5977 states and 10005 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 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 01:39:17,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:17,616 INFO L93 Difference]: Finished difference Result 16145 states and 26843 transitions. [2024-10-24 01:39:17,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:39:17,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 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 219 [2024-10-24 01:39:17,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:17,650 INFO L225 Difference]: With dead ends: 16145 [2024-10-24 01:39:17,650 INFO L226 Difference]: Without dead ends: 10863 [2024-10-24 01:39:17,661 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 01:39:17,662 INFO L432 NwaCegarLoop]: 1285 mSDtfsCounter, 271 mSDsluCounter, 1238 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 2523 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 01:39:17,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 2523 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:39:17,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10863 states. [2024-10-24 01:39:17,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10863 to 10861. [2024-10-24 01:39:17,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10861 states, 10860 states have (on average 1.6582872928176795) internal successors, (18009), 10860 states have internal predecessors, (18009), 0 states have call successors, (0), 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 01:39:17,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10861 states to 10861 states and 18009 transitions. [2024-10-24 01:39:17,910 INFO L78 Accepts]: Start accepts. Automaton has 10861 states and 18009 transitions. Word has length 219 [2024-10-24 01:39:17,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:17,911 INFO L471 AbstractCegarLoop]: Abstraction has 10861 states and 18009 transitions. [2024-10-24 01:39:17,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 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 01:39:17,912 INFO L276 IsEmpty]: Start isEmpty. Operand 10861 states and 18009 transitions. [2024-10-24 01:39:17,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-10-24 01:39:17,914 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:17,914 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:39:17,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 01:39:17,914 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:39:17,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:17,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1625652038, now seen corresponding path program 1 times [2024-10-24 01:39:17,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:17,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467578497] [2024-10-24 01:39:17,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:17,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:18,209 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 01:39:18,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:18,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467578497] [2024-10-24 01:39:18,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467578497] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:18,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:18,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:39:18,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672184956] [2024-10-24 01:39:18,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:18,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:39:18,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:18,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:39:18,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:39:18,212 INFO L87 Difference]: Start difference. First operand 10861 states and 18009 transitions. Second operand has 7 states, 7 states have (on average 31.857142857142858) internal successors, (223), 7 states have internal predecessors, (223), 0 states have call successors, (0), 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 01:39:18,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:18,875 INFO L93 Difference]: Finished difference Result 73997 states and 123150 transitions. [2024-10-24 01:39:18,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 01:39:18,876 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.857142857142858) internal successors, (223), 7 states have internal predecessors, (223), 0 states have call successors, (0), 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 223 [2024-10-24 01:39:18,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:18,991 INFO L225 Difference]: With dead ends: 73997 [2024-10-24 01:39:18,991 INFO L226 Difference]: Without dead ends: 63831 [2024-10-24 01:39:19,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-10-24 01:39:19,035 INFO L432 NwaCegarLoop]: 1271 mSDtfsCounter, 4553 mSDsluCounter, 9084 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4553 SdHoareTripleChecker+Valid, 10355 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:19,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4553 Valid, 10355 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:39:19,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63831 states. [2024-10-24 01:39:19,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63831 to 20816. [2024-10-24 01:39:19,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20816 states, 20815 states have (on average 1.6535190968051885) internal successors, (34418), 20815 states have internal predecessors, (34418), 0 states have call successors, (0), 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 01:39:19,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20816 states to 20816 states and 34418 transitions. [2024-10-24 01:39:19,632 INFO L78 Accepts]: Start accepts. Automaton has 20816 states and 34418 transitions. Word has length 223 [2024-10-24 01:39:19,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:19,633 INFO L471 AbstractCegarLoop]: Abstraction has 20816 states and 34418 transitions. [2024-10-24 01:39:19,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.857142857142858) internal successors, (223), 7 states have internal predecessors, (223), 0 states have call successors, (0), 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 01:39:19,633 INFO L276 IsEmpty]: Start isEmpty. Operand 20816 states and 34418 transitions. [2024-10-24 01:39:19,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-10-24 01:39:19,636 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:19,636 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:39:19,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 01:39:19,636 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:39:19,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:19,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1072774625, now seen corresponding path program 1 times [2024-10-24 01:39:19,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:19,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662210439] [2024-10-24 01:39:19,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:19,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:19,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:19,885 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 01:39:19,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:19,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662210439] [2024-10-24 01:39:19,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662210439] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:19,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:19,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:39:19,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818426665] [2024-10-24 01:39:19,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:19,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:39:19,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:19,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:39:19,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:39:19,888 INFO L87 Difference]: Start difference. First operand 20816 states and 34418 transitions. Second operand has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 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 01:39:20,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:20,145 INFO L93 Difference]: Finished difference Result 61919 states and 102778 transitions. [2024-10-24 01:39:20,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:39:20,146 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 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 224 [2024-10-24 01:39:20,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:20,209 INFO L225 Difference]: With dead ends: 61919 [2024-10-24 01:39:20,209 INFO L226 Difference]: Without dead ends: 41860 [2024-10-24 01:39:20,243 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 01:39:20,245 INFO L432 NwaCegarLoop]: 1274 mSDtfsCounter, 939 mSDsluCounter, 2829 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 4103 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 01:39:20,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [939 Valid, 4103 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:39:20,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41860 states. [2024-10-24 01:39:20,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41860 to 31295. [2024-10-24 01:39:20,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31295 states, 31294 states have (on average 1.6553972007413562) internal successors, (51804), 31294 states have internal predecessors, (51804), 0 states have call successors, (0), 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 01:39:20,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31295 states to 31295 states and 51804 transitions. [2024-10-24 01:39:20,823 INFO L78 Accepts]: Start accepts. Automaton has 31295 states and 51804 transitions. Word has length 224 [2024-10-24 01:39:20,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:20,827 INFO L471 AbstractCegarLoop]: Abstraction has 31295 states and 51804 transitions. [2024-10-24 01:39:20,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 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 01:39:20,827 INFO L276 IsEmpty]: Start isEmpty. Operand 31295 states and 51804 transitions. [2024-10-24 01:39:20,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-10-24 01:39:20,834 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:20,835 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:39:20,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 01:39:20,835 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:39:20,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:20,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1860956234, now seen corresponding path program 1 times [2024-10-24 01:39:20,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:20,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300790710] [2024-10-24 01:39:20,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:20,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:20,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:20,996 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 01:39:20,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:20,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300790710] [2024-10-24 01:39:20,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300790710] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:20,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:20,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:39:20,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478774793] [2024-10-24 01:39:20,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:20,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:39:20,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:20,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:39:20,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:39:20,998 INFO L87 Difference]: Start difference. First operand 31295 states and 51804 transitions. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 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 01:39:21,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:21,161 INFO L93 Difference]: Finished difference Result 59897 states and 99326 transitions. [2024-10-24 01:39:21,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:39:21,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 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 224 [2024-10-24 01:39:21,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:21,236 INFO L225 Difference]: With dead ends: 59897 [2024-10-24 01:39:21,237 INFO L226 Difference]: Without dead ends: 43929 [2024-10-24 01:39:21,266 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 01:39:21,266 INFO L432 NwaCegarLoop]: 1365 mSDtfsCounter, 272 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 2610 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 01:39:21,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 2610 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:39:21,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43929 states. [2024-10-24 01:39:21,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43929 to 43927. [2024-10-24 01:39:22,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43927 states, 43926 states have (on average 1.6528252060283204) internal successors, (72602), 43926 states have internal predecessors, (72602), 0 states have call successors, (0), 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 01:39:22,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43927 states to 43927 states and 72602 transitions. [2024-10-24 01:39:22,237 INFO L78 Accepts]: Start accepts. Automaton has 43927 states and 72602 transitions. Word has length 224 [2024-10-24 01:39:22,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:22,238 INFO L471 AbstractCegarLoop]: Abstraction has 43927 states and 72602 transitions. [2024-10-24 01:39:22,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 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 01:39:22,239 INFO L276 IsEmpty]: Start isEmpty. Operand 43927 states and 72602 transitions. [2024-10-24 01:39:22,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-10-24 01:39:22,243 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:22,243 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:39:22,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 01:39:22,244 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:39:22,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:22,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1308500106, now seen corresponding path program 1 times [2024-10-24 01:39:22,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:22,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921388177] [2024-10-24 01:39:22,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:22,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:22,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:22,596 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 01:39:22,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:22,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921388177] [2024-10-24 01:39:22,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921388177] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:22,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:22,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:39:22,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499503863] [2024-10-24 01:39:22,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:22,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:39:22,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:22,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:39:22,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:39:22,599 INFO L87 Difference]: Start difference. First operand 43927 states and 72602 transitions. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 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 01:39:22,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:22,973 INFO L93 Difference]: Finished difference Result 83513 states and 138376 transitions. [2024-10-24 01:39:22,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:39:22,974 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 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 224 [2024-10-24 01:39:22,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:23,081 INFO L225 Difference]: With dead ends: 83513 [2024-10-24 01:39:23,081 INFO L226 Difference]: Without dead ends: 60857 [2024-10-24 01:39:23,115 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 01:39:23,118 INFO L432 NwaCegarLoop]: 1457 mSDtfsCounter, 286 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 2700 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 01:39:23,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 2700 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:39:23,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60857 states. [2024-10-24 01:39:24,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60857 to 60855. [2024-10-24 01:39:24,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60855 states, 60854 states have (on average 1.6512308147369112) internal successors, (100484), 60854 states have internal predecessors, (100484), 0 states have call successors, (0), 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 01:39:24,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60855 states to 60855 states and 100484 transitions. [2024-10-24 01:39:24,418 INFO L78 Accepts]: Start accepts. Automaton has 60855 states and 100484 transitions. Word has length 224 [2024-10-24 01:39:24,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:24,420 INFO L471 AbstractCegarLoop]: Abstraction has 60855 states and 100484 transitions. [2024-10-24 01:39:24,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 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 01:39:24,420 INFO L276 IsEmpty]: Start isEmpty. Operand 60855 states and 100484 transitions. [2024-10-24 01:39:24,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-10-24 01:39:24,422 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:24,422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:39:24,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 01:39:24,423 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:39:24,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:24,423 INFO L85 PathProgramCache]: Analyzing trace with hash -892880526, now seen corresponding path program 1 times [2024-10-24 01:39:24,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:24,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795820201] [2024-10-24 01:39:24,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:24,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:24,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:24,552 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 01:39:24,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:24,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795820201] [2024-10-24 01:39:24,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795820201] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:24,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:24,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:39:24,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001178766] [2024-10-24 01:39:24,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:24,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:39:24,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:24,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:39:24,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:39:24,554 INFO L87 Difference]: Start difference. First operand 60855 states and 100484 transitions. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 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 01:39:25,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:25,080 INFO L93 Difference]: Finished difference Result 133559 states and 221684 transitions. [2024-10-24 01:39:25,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:39:25,081 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 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 224 [2024-10-24 01:39:25,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:25,669 INFO L225 Difference]: With dead ends: 133559 [2024-10-24 01:39:25,669 INFO L226 Difference]: Without dead ends: 91735 [2024-10-24 01:39:25,707 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 01:39:25,708 INFO L432 NwaCegarLoop]: 1540 mSDtfsCounter, 300 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 2781 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 01:39:25,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 2781 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:39:25,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91735 states. [2024-10-24 01:39:26,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91735 to 91733. [2024-10-24 01:39:26,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91733 states, 91732 states have (on average 1.6519317141237517) internal successors, (151535), 91732 states have internal predecessors, (151535), 0 states have call successors, (0), 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 01:39:27,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91733 states to 91733 states and 151535 transitions. [2024-10-24 01:39:27,348 INFO L78 Accepts]: Start accepts. Automaton has 91733 states and 151535 transitions. Word has length 224 [2024-10-24 01:39:27,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:27,348 INFO L471 AbstractCegarLoop]: Abstraction has 91733 states and 151535 transitions. [2024-10-24 01:39:27,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 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 01:39:27,349 INFO L276 IsEmpty]: Start isEmpty. Operand 91733 states and 151535 transitions. [2024-10-24 01:39:27,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-10-24 01:39:27,358 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:27,358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:39:27,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 01:39:27,358 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:39:27,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:27,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1170786719, now seen corresponding path program 1 times [2024-10-24 01:39:27,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:27,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064211391] [2024-10-24 01:39:27,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:27,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:27,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:27,676 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 01:39:27,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:27,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064211391] [2024-10-24 01:39:27,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064211391] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:27,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:27,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:39:27,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896121930] [2024-10-24 01:39:27,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:27,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:39:27,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:27,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:39:27,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:39:27,678 INFO L87 Difference]: Start difference. First operand 91733 states and 151535 transitions. Second operand has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 0 states have call successors, (0), 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 01:39:28,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:28,821 INFO L93 Difference]: Finished difference Result 301364 states and 498658 transitions. [2024-10-24 01:39:28,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:39:28,822 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 0 states have call successors, (0), 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 225 [2024-10-24 01:39:28,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:29,177 INFO L225 Difference]: With dead ends: 301364 [2024-10-24 01:39:29,177 INFO L226 Difference]: Without dead ends: 210267 [2024-10-24 01:39:29,243 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 01:39:29,244 INFO L432 NwaCegarLoop]: 1281 mSDtfsCounter, 937 mSDsluCounter, 2831 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 4112 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 01:39:29,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [937 Valid, 4112 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:39:29,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210267 states. [2024-10-24 01:39:31,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210267 to 150731. [2024-10-24 01:39:31,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150731 states, 150730 states have (on average 1.6489418164930671) internal successors, (248545), 150730 states have internal predecessors, (248545), 0 states have call successors, (0), 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 01:39:32,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150731 states to 150731 states and 248545 transitions. [2024-10-24 01:39:32,515 INFO L78 Accepts]: Start accepts. Automaton has 150731 states and 248545 transitions. Word has length 225 [2024-10-24 01:39:32,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:32,519 INFO L471 AbstractCegarLoop]: Abstraction has 150731 states and 248545 transitions. [2024-10-24 01:39:32,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 0 states have call successors, (0), 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 01:39:32,519 INFO L276 IsEmpty]: Start isEmpty. Operand 150731 states and 248545 transitions. [2024-10-24 01:39:32,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-10-24 01:39:32,520 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:32,521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:39:32,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 01:39:32,521 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:39:32,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:32,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1997153624, now seen corresponding path program 1 times [2024-10-24 01:39:32,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:32,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985664581] [2024-10-24 01:39:32,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:32,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:32,749 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 01:39:32,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:32,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985664581] [2024-10-24 01:39:32,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985664581] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:32,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:32,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:39:32,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623182598] [2024-10-24 01:39:32,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:32,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:39:32,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:32,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:39:32,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:39:32,751 INFO L87 Difference]: Start difference. First operand 150731 states and 248545 transitions. Second operand has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 0 states have call successors, (0), 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 01:39:34,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:34,820 INFO L93 Difference]: Finished difference Result 494900 states and 817522 transitions. [2024-10-24 01:39:34,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:39:34,820 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 0 states have call successors, (0), 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 226 [2024-10-24 01:39:34,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:35,499 INFO L225 Difference]: With dead ends: 494900 [2024-10-24 01:39:35,499 INFO L226 Difference]: Without dead ends: 344805 [2024-10-24 01:39:35,642 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 01:39:35,642 INFO L432 NwaCegarLoop]: 1274 mSDtfsCounter, 935 mSDsluCounter, 2833 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 4107 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:39:35,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [935 Valid, 4107 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:39:35,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344805 states. [2024-10-24 01:39:39,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344805 to 247325. [2024-10-24 01:39:39,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247325 states, 247324 states have (on average 1.6460472901942391) internal successors, (407107), 247324 states have internal predecessors, (407107), 0 states have call successors, (0), 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 01:39:41,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247325 states to 247325 states and 407107 transitions. [2024-10-24 01:39:41,086 INFO L78 Accepts]: Start accepts. Automaton has 247325 states and 407107 transitions. Word has length 226 [2024-10-24 01:39:41,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:41,087 INFO L471 AbstractCegarLoop]: Abstraction has 247325 states and 407107 transitions. [2024-10-24 01:39:41,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 0 states have call successors, (0), 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 01:39:41,087 INFO L276 IsEmpty]: Start isEmpty. Operand 247325 states and 407107 transitions. [2024-10-24 01:39:41,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-10-24 01:39:41,088 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:41,088 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:39:41,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 01:39:41,088 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:39:41,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:41,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1840165880, now seen corresponding path program 1 times [2024-10-24 01:39:41,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:41,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334436457] [2024-10-24 01:39:41,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:41,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:41,375 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 01:39:41,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:41,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334436457] [2024-10-24 01:39:41,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334436457] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:41,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:41,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:39:41,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337442483] [2024-10-24 01:39:41,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:41,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:39:41,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:41,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:39:41,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:39:41,377 INFO L87 Difference]: Start difference. First operand 247325 states and 407107 transitions. Second operand has 4 states, 4 states have (on average 56.75) internal successors, (227), 4 states have internal predecessors, (227), 0 states have call successors, (0), 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 01:39:44,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:39:44,217 INFO L93 Difference]: Finished difference Result 809460 states and 1334922 transitions. [2024-10-24 01:39:44,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:39:44,218 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.75) internal successors, (227), 4 states have internal predecessors, (227), 0 states have call successors, (0), 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 227 [2024-10-24 01:39:44,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:39:46,566 INFO L225 Difference]: With dead ends: 809460 [2024-10-24 01:39:46,566 INFO L226 Difference]: Without dead ends: 562771 [2024-10-24 01:39:46,935 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 01:39:46,939 INFO L432 NwaCegarLoop]: 1273 mSDtfsCounter, 933 mSDsluCounter, 2760 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 4033 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 01:39:46,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [933 Valid, 4033 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:39:47,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562771 states. [2024-10-24 01:39:52,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562771 to 404323. [2024-10-24 01:39:53,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404323 states, 404322 states have (on average 1.6432373207493038) internal successors, (664397), 404322 states have internal predecessors, (664397), 0 states have call successors, (0), 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 01:39:55,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404323 states to 404323 states and 664397 transitions. [2024-10-24 01:39:55,798 INFO L78 Accepts]: Start accepts. Automaton has 404323 states and 664397 transitions. Word has length 227 [2024-10-24 01:39:55,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:39:55,799 INFO L471 AbstractCegarLoop]: Abstraction has 404323 states and 664397 transitions. [2024-10-24 01:39:55,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.75) internal successors, (227), 4 states have internal predecessors, (227), 0 states have call successors, (0), 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 01:39:55,799 INFO L276 IsEmpty]: Start isEmpty. Operand 404323 states and 664397 transitions. [2024-10-24 01:39:55,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-10-24 01:39:55,801 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:39:55,801 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:39:55,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 01:39:55,802 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:39:55,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:39:55,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1263955089, now seen corresponding path program 1 times [2024-10-24 01:39:55,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:39:55,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030623640] [2024-10-24 01:39:55,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:39:55,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:39:55,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:39:56,034 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 01:39:56,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:39:56,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030623640] [2024-10-24 01:39:56,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030623640] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:39:56,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:39:56,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:39:56,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685932754] [2024-10-24 01:39:56,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:39:56,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:39:56,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:39:56,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:39:56,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:39:56,038 INFO L87 Difference]: Start difference. First operand 404323 states and 664397 transitions. Second operand has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 0 states have call successors, (0), 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 01:40:01,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:40:01,289 INFO L93 Difference]: Finished difference Result 1314036 states and 2163466 transitions. [2024-10-24 01:40:01,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:40:01,289 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 0 states have call successors, (0), 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 228 [2024-10-24 01:40:01,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:40:04,551 INFO L225 Difference]: With dead ends: 1314036 [2024-10-24 01:40:04,552 INFO L226 Difference]: Without dead ends: 910349 [2024-10-24 01:40:04,993 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 01:40:04,997 INFO L432 NwaCegarLoop]: 1273 mSDtfsCounter, 931 mSDsluCounter, 2819 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 931 SdHoareTripleChecker+Valid, 4092 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 01:40:04,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [931 Valid, 4092 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:40:05,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910349 states.