./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 37da121d1485cf4d7db5098d27ad9010a5336c778943ff6fd7c53fe4a9fdfbdc --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 15:58:10,107 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 15:58:10,167 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 15:58:10,173 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 15:58:10,173 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 15:58:10,198 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 15:58:10,199 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 15:58:10,199 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 15:58:10,199 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 15:58:10,200 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 15:58:10,200 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 15:58:10,200 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 15:58:10,201 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 15:58:10,201 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 15:58:10,201 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 15:58:10,201 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 15:58:10,202 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 15:58:10,202 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 15:58:10,202 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 15:58:10,203 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 15:58:10,203 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 15:58:10,206 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 15:58:10,206 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 15:58:10,206 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 15:58:10,207 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 15:58:10,207 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 15:58:10,207 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 15:58:10,207 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 15:58:10,207 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 15:58:10,207 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 15:58:10,208 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 15:58:10,208 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 15:58:10,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:58:10,208 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 15:58:10,208 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 15:58:10,208 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 15:58:10,209 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 15:58:10,209 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 15:58:10,209 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 15:58:10,210 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 15:58:10,210 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 15:58:10,211 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 15:58:10,211 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 37da121d1485cf4d7db5098d27ad9010a5336c778943ff6fd7c53fe4a9fdfbdc [2024-11-08 15:58:10,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 15:58:10,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 15:58:10,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 15:58:10,446 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 15:58:10,447 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 15:58:10,447 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-08 15:58:11,904 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 15:58:12,129 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 15:58:12,130 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-08 15:58:12,144 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f20680f2/195c515e941340c08a61934e4218a2cb/FLAGd4e13948b [2024-11-08 15:58:12,160 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f20680f2/195c515e941340c08a61934e4218a2cb [2024-11-08 15:58:12,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 15:58:12,164 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 15:58:12,166 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 15:58:12,167 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 15:58:12,171 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 15:58:12,172 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:58:12" (1/1) ... [2024-11-08 15:58:12,172 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20b4adc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:58:12, skipping insertion in model container [2024-11-08 15:58:12,173 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:58:12" (1/1) ... [2024-11-08 15:58:12,224 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 15:58:12,441 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[8458,8471] [2024-11-08 15:58:12,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:58:12,508 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 15:58:12,542 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[8458,8471] [2024-11-08 15:58:12,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:58:12,671 INFO L204 MainTranslator]: Completed translation [2024-11-08 15:58:12,671 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:58:12 WrapperNode [2024-11-08 15:58:12,672 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 15:58:12,672 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 15:58:12,672 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 15:58:12,672 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 15:58:12,682 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:58:12" (1/1) ... [2024-11-08 15:58:12,707 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:58:12" (1/1) ... [2024-11-08 15:58:12,756 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 864 [2024-11-08 15:58:12,757 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 15:58:12,757 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 15:58:12,757 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 15:58:12,757 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 15:58:12,766 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:58:12" (1/1) ... [2024-11-08 15:58:12,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:58:12" (1/1) ... [2024-11-08 15:58:12,770 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:58:12" (1/1) ... [2024-11-08 15:58:12,797 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]. [2024-11-08 15:58:12,797 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:58:12" (1/1) ... [2024-11-08 15:58:12,798 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:58:12" (1/1) ... [2024-11-08 15:58:12,808 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:58:12" (1/1) ... [2024-11-08 15:58:12,813 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:58:12" (1/1) ... [2024-11-08 15:58:12,815 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:58:12" (1/1) ... [2024-11-08 15:58:12,817 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:58:12" (1/1) ... [2024-11-08 15:58:12,821 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 15:58:12,822 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 15:58:12,822 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 15:58:12,822 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 15:58:12,823 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:58:12" (1/1) ... [2024-11-08 15:58:12,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:58:12,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:58:12,876 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) [2024-11-08 15:58:12,878 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 [2024-11-08 15:58:12,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 15:58:12,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 15:58:12,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 15:58:12,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 15:58:13,023 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 15:58:13,024 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 15:58:13,562 INFO L? ?]: Removed 95 outVars from TransFormulas that were not future-live. [2024-11-08 15:58:13,562 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 15:58:13,575 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 15:58:13,575 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 15:58:13,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:58:13 BoogieIcfgContainer [2024-11-08 15:58:13,576 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 15:58:13,577 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 15:58:13,577 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 15:58:13,580 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 15:58:13,580 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 03:58:12" (1/3) ... [2024-11-08 15:58:13,581 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c777ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:58:13, skipping insertion in model container [2024-11-08 15:58:13,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:58:12" (2/3) ... [2024-11-08 15:58:13,581 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c777ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:58:13, skipping insertion in model container [2024-11-08 15:58:13,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:58:13" (3/3) ... [2024-11-08 15:58:13,582 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-08 15:58:13,595 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 15:58:13,596 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 15:58:13,662 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 15:58:13,668 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;@2fa19ab5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 15:58:13,668 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 15:58:13,674 INFO L276 IsEmpty]: Start isEmpty. Operand has 215 states, 213 states have (on average 1.7183098591549295) internal successors, (366), 214 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:13,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-08 15:58:13,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:58:13,682 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] [2024-11-08 15:58:13,683 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:58:13,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:58:13,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1949123702, now seen corresponding path program 1 times [2024-11-08 15:58:13,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:58:13,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133237076] [2024-11-08 15:58:13,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:58:13,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:58:13,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:58:14,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:58:14,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:58:14,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133237076] [2024-11-08 15:58:14,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133237076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:58:14,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:58:14,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:58:14,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449379168] [2024-11-08 15:58:14,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:58:14,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:58:14,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:58:14,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:58:14,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:58:14,389 INFO L87 Difference]: Start difference. First operand has 215 states, 213 states have (on average 1.7183098591549295) internal successors, (366), 214 states have internal predecessors, (366), 0 states have call successors, (0), 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 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:14,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:58:14,623 INFO L93 Difference]: Finished difference Result 867 states and 1402 transitions. [2024-11-08 15:58:14,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 15:58:14,625 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-11-08 15:58:14,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:58:14,643 INFO L225 Difference]: With dead ends: 867 [2024-11-08 15:58:14,643 INFO L226 Difference]: Without dead ends: 747 [2024-11-08 15:58:14,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-08 15:58:14,650 INFO L432 NwaCegarLoop]: 369 mSDtfsCounter, 2370 mSDsluCounter, 1848 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2370 SdHoareTripleChecker+Valid, 2217 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:58:14,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2370 Valid, 2217 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:58:14,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2024-11-08 15:58:14,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 328. [2024-11-08 15:58:14,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 327 states have (on average 1.507645259938838) internal successors, (493), 327 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:14,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 493 transitions. [2024-11-08 15:58:14,712 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 493 transitions. Word has length 80 [2024-11-08 15:58:14,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:58:14,712 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 493 transitions. [2024-11-08 15:58:14,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:14,712 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 493 transitions. [2024-11-08 15:58:14,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 15:58:14,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:58:14,716 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:58:14,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 15:58:14,716 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:58:14,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:58:14,717 INFO L85 PathProgramCache]: Analyzing trace with hash 13403552, now seen corresponding path program 1 times [2024-11-08 15:58:14,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:58:14,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040018015] [2024-11-08 15:58:14,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:58:14,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:58:14,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:58:15,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:58:15,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:58:15,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040018015] [2024-11-08 15:58:15,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040018015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:58:15,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:58:15,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:58:15,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856349199] [2024-11-08 15:58:15,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:58:15,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:58:15,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:58:15,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:58:15,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:58:15,059 INFO L87 Difference]: Start difference. First operand 328 states and 493 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:15,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:58:15,255 INFO L93 Difference]: Finished difference Result 1424 states and 2210 transitions. [2024-11-08 15:58:15,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 15:58:15,256 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-08 15:58:15,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:58:15,260 INFO L225 Difference]: With dead ends: 1424 [2024-11-08 15:58:15,260 INFO L226 Difference]: Without dead ends: 1176 [2024-11-08 15:58:15,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:58:15,262 INFO L432 NwaCegarLoop]: 617 mSDtfsCounter, 1766 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1766 SdHoareTripleChecker+Valid, 1350 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:58:15,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1766 Valid, 1350 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 15:58:15,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2024-11-08 15:58:15,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 1168. [2024-11-08 15:58:15,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1168 states, 1167 states have (on average 1.5475578406169666) internal successors, (1806), 1167 states have internal predecessors, (1806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:15,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1168 states to 1168 states and 1806 transitions. [2024-11-08 15:58:15,297 INFO L78 Accepts]: Start accepts. Automaton has 1168 states and 1806 transitions. Word has length 81 [2024-11-08 15:58:15,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:58:15,297 INFO L471 AbstractCegarLoop]: Abstraction has 1168 states and 1806 transitions. [2024-11-08 15:58:15,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:15,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1168 states and 1806 transitions. [2024-11-08 15:58:15,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 15:58:15,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:58:15,308 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:58:15,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 15:58:15,308 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:58:15,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:58:15,309 INFO L85 PathProgramCache]: Analyzing trace with hash 2050473049, now seen corresponding path program 1 times [2024-11-08 15:58:15,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:58:15,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454752437] [2024-11-08 15:58:15,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:58:15,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:58:15,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:58:15,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:58:15,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:58:15,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454752437] [2024-11-08 15:58:15,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454752437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:58:15,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:58:15,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 15:58:15,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053466172] [2024-11-08 15:58:15,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:58:15,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:58:15,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:58:15,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:58:15,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:58:15,498 INFO L87 Difference]: Start difference. First operand 1168 states and 1806 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:15,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:58:15,718 INFO L93 Difference]: Finished difference Result 3105 states and 4859 transitions. [2024-11-08 15:58:15,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:58:15,720 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-08 15:58:15,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:58:15,727 INFO L225 Difference]: With dead ends: 3105 [2024-11-08 15:58:15,727 INFO L226 Difference]: Without dead ends: 2018 [2024-11-08 15:58:15,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:58:15,732 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 1168 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:58:15,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 298 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 15:58:15,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2018 states. [2024-11-08 15:58:15,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2018 to 2016. [2024-11-08 15:58:15,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2016 states, 2015 states have (on average 1.5563275434243176) internal successors, (3136), 2015 states have internal predecessors, (3136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:15,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2016 states to 2016 states and 3136 transitions. [2024-11-08 15:58:15,766 INFO L78 Accepts]: Start accepts. Automaton has 2016 states and 3136 transitions. Word has length 82 [2024-11-08 15:58:15,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:58:15,766 INFO L471 AbstractCegarLoop]: Abstraction has 2016 states and 3136 transitions. [2024-11-08 15:58:15,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:15,768 INFO L276 IsEmpty]: Start isEmpty. Operand 2016 states and 3136 transitions. [2024-11-08 15:58:15,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 15:58:15,772 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:58:15,772 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:58:15,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 15:58:15,772 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:58:15,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:58:15,775 INFO L85 PathProgramCache]: Analyzing trace with hash 269412074, now seen corresponding path program 1 times [2024-11-08 15:58:15,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:58:15,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328023384] [2024-11-08 15:58:15,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:58:15,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:58:15,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:58:15,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:58:15,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:58:15,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328023384] [2024-11-08 15:58:15,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328023384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:58:15,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:58:15,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 15:58:15,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979002433] [2024-11-08 15:58:15,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:58:15,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:58:15,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:58:15,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:58:15,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:58:15,897 INFO L87 Difference]: Start difference. First operand 2016 states and 3136 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:16,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:58:16,101 INFO L93 Difference]: Finished difference Result 5537 states and 8684 transitions. [2024-11-08 15:58:16,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:58:16,102 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-08 15:58:16,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:58:16,111 INFO L225 Difference]: With dead ends: 5537 [2024-11-08 15:58:16,112 INFO L226 Difference]: Without dead ends: 3632 [2024-11-08 15:58:16,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:58:16,118 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 1134 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:58:16,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1134 Valid, 298 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 15:58:16,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3632 states. [2024-11-08 15:58:16,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3632 to 3630. [2024-11-08 15:58:16,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3630 states, 3629 states have (on average 1.5593827500688895) internal successors, (5659), 3629 states have internal predecessors, (5659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:16,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3630 states to 3630 states and 5659 transitions. [2024-11-08 15:58:16,172 INFO L78 Accepts]: Start accepts. Automaton has 3630 states and 5659 transitions. Word has length 82 [2024-11-08 15:58:16,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:58:16,172 INFO L471 AbstractCegarLoop]: Abstraction has 3630 states and 5659 transitions. [2024-11-08 15:58:16,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:16,173 INFO L276 IsEmpty]: Start isEmpty. Operand 3630 states and 5659 transitions. [2024-11-08 15:58:16,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 15:58:16,175 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:58:16,175 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:58:16,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 15:58:16,177 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:58:16,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:58:16,177 INFO L85 PathProgramCache]: Analyzing trace with hash 778028859, now seen corresponding path program 1 times [2024-11-08 15:58:16,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:58:16,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689076551] [2024-11-08 15:58:16,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:58:16,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:58:16,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:58:16,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:58:16,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:58:16,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689076551] [2024-11-08 15:58:16,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689076551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:58:16,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:58:16,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 15:58:16,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384482578] [2024-11-08 15:58:16,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:58:16,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:58:16,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:58:16,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:58:16,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:58:16,293 INFO L87 Difference]: Start difference. First operand 3630 states and 5659 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:16,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:58:16,500 INFO L93 Difference]: Finished difference Result 10317 states and 16188 transitions. [2024-11-08 15:58:16,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:58:16,501 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-08 15:58:16,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:58:16,522 INFO L225 Difference]: With dead ends: 10317 [2024-11-08 15:58:16,522 INFO L226 Difference]: Without dead ends: 6832 [2024-11-08 15:58:16,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:58:16,530 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 1116 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:58:16,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1116 Valid, 309 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 15:58:16,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6832 states. [2024-11-08 15:58:16,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6832 to 6830. [2024-11-08 15:58:16,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6830 states, 6829 states have (on average 1.5618685019768634) internal successors, (10666), 6829 states have internal predecessors, (10666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:16,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6830 states to 6830 states and 10666 transitions. [2024-11-08 15:58:16,753 INFO L78 Accepts]: Start accepts. Automaton has 6830 states and 10666 transitions. Word has length 82 [2024-11-08 15:58:16,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:58:16,754 INFO L471 AbstractCegarLoop]: Abstraction has 6830 states and 10666 transitions. [2024-11-08 15:58:16,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:16,755 INFO L276 IsEmpty]: Start isEmpty. Operand 6830 states and 10666 transitions. [2024-11-08 15:58:16,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 15:58:16,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:58:16,758 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:58:16,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 15:58:16,758 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:58:16,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:58:16,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1091254392, now seen corresponding path program 1 times [2024-11-08 15:58:16,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:58:16,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711691404] [2024-11-08 15:58:16,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:58:16,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:58:16,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:58:16,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:58:16,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:58:16,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711691404] [2024-11-08 15:58:16,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711691404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:58:16,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:58:16,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 15:58:16,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415882074] [2024-11-08 15:58:16,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:58:16,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:58:16,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:58:16,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:58:16,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:58:16,885 INFO L87 Difference]: Start difference. First operand 6830 states and 10666 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:17,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:58:17,134 INFO L93 Difference]: Finished difference Result 20144 states and 31540 transitions. [2024-11-08 15:58:17,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:58:17,134 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-08 15:58:17,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:58:17,170 INFO L225 Difference]: With dead ends: 20144 [2024-11-08 15:58:17,171 INFO L226 Difference]: Without dead ends: 13372 [2024-11-08 15:58:17,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:58:17,185 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 1182 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:58:17,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1182 Valid, 296 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 15:58:17,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13372 states. [2024-11-08 15:58:17,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13372 to 13370. [2024-11-08 15:58:17,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13370 states, 13369 states have (on average 1.5566609320068816) internal successors, (20811), 13369 states have internal predecessors, (20811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:17,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13370 states to 13370 states and 20811 transitions. [2024-11-08 15:58:17,460 INFO L78 Accepts]: Start accepts. Automaton has 13370 states and 20811 transitions. Word has length 82 [2024-11-08 15:58:17,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:58:17,460 INFO L471 AbstractCegarLoop]: Abstraction has 13370 states and 20811 transitions. [2024-11-08 15:58:17,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:17,461 INFO L276 IsEmpty]: Start isEmpty. Operand 13370 states and 20811 transitions. [2024-11-08 15:58:17,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 15:58:17,464 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:58:17,464 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:58:17,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 15:58:17,465 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:58:17,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:58:17,465 INFO L85 PathProgramCache]: Analyzing trace with hash 980453495, now seen corresponding path program 1 times [2024-11-08 15:58:17,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:58:17,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287657630] [2024-11-08 15:58:17,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:58:17,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:58:17,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:58:17,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:58:17,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:58:17,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287657630] [2024-11-08 15:58:17,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287657630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:58:17,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:58:17,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 15:58:17,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568566505] [2024-11-08 15:58:17,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:58:17,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:58:17,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:58:17,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:58:17,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:58:17,573 INFO L87 Difference]: Start difference. First operand 13370 states and 20811 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:17,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:58:17,863 INFO L93 Difference]: Finished difference Result 37565 states and 58554 transitions. [2024-11-08 15:58:17,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:58:17,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-08 15:58:17,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:58:17,919 INFO L225 Difference]: With dead ends: 37565 [2024-11-08 15:58:17,919 INFO L226 Difference]: Without dead ends: 24237 [2024-11-08 15:58:17,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:58:17,935 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 1212 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:58:17,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1212 Valid, 292 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 15:58:17,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24237 states. [2024-11-08 15:58:18,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24237 to 24235. [2024-11-08 15:58:18,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24235 states, 24234 states have (on average 1.547330197243542) internal successors, (37498), 24234 states have internal predecessors, (37498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:18,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24235 states to 24235 states and 37498 transitions. [2024-11-08 15:58:18,470 INFO L78 Accepts]: Start accepts. Automaton has 24235 states and 37498 transitions. Word has length 82 [2024-11-08 15:58:18,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:58:18,470 INFO L471 AbstractCegarLoop]: Abstraction has 24235 states and 37498 transitions. [2024-11-08 15:58:18,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:18,471 INFO L276 IsEmpty]: Start isEmpty. Operand 24235 states and 37498 transitions. [2024-11-08 15:58:18,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-08 15:58:18,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:58:18,475 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] [2024-11-08 15:58:18,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 15:58:18,475 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:58:18,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:58:18,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1660254060, now seen corresponding path program 1 times [2024-11-08 15:58:18,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:58:18,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316848716] [2024-11-08 15:58:18,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:58:18,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:58:18,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:58:18,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:58:18,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:58:18,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316848716] [2024-11-08 15:58:18,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316848716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:58:18,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:58:18,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:58:18,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481111189] [2024-11-08 15:58:18,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:58:18,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:58:18,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:58:18,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:58:18,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:58:18,841 INFO L87 Difference]: Start difference. First operand 24235 states and 37498 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:18,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:58:18,917 INFO L93 Difference]: Finished difference Result 24813 states and 38363 transitions. [2024-11-08 15:58:18,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:58:18,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-08 15:58:18,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:58:18,955 INFO L225 Difference]: With dead ends: 24813 [2024-11-08 15:58:18,956 INFO L226 Difference]: Without dead ends: 24811 [2024-11-08 15:58:18,967 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:58:18,967 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 0 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1166 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:58:18,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1166 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:58:18,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24811 states. [2024-11-08 15:58:19,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24811 to 24811. [2024-11-08 15:58:19,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24811 states, 24810 states have (on average 1.5346231358323257) internal successors, (38074), 24810 states have internal predecessors, (38074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:19,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24811 states to 24811 states and 38074 transitions. [2024-11-08 15:58:19,412 INFO L78 Accepts]: Start accepts. Automaton has 24811 states and 38074 transitions. Word has length 83 [2024-11-08 15:58:19,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:58:19,412 INFO L471 AbstractCegarLoop]: Abstraction has 24811 states and 38074 transitions. [2024-11-08 15:58:19,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:19,413 INFO L276 IsEmpty]: Start isEmpty. Operand 24811 states and 38074 transitions. [2024-11-08 15:58:19,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 15:58:19,419 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:58:19,419 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] [2024-11-08 15:58:19,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 15:58:19,419 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:58:19,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:58:19,420 INFO L85 PathProgramCache]: Analyzing trace with hash 207675476, now seen corresponding path program 1 times [2024-11-08 15:58:19,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:58:19,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952098894] [2024-11-08 15:58:19,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:58:19,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:58:19,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:58:19,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:58:19,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:58:19,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952098894] [2024-11-08 15:58:19,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952098894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:58:19,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:58:19,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 15:58:19,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380963375] [2024-11-08 15:58:19,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:58:19,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 15:58:19,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:58:19,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 15:58:19,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:58:19,770 INFO L87 Difference]: Start difference. First operand 24811 states and 38074 transitions. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:20,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:58:20,392 INFO L93 Difference]: Finished difference Result 48862 states and 74474 transitions. [2024-11-08 15:58:20,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 15:58:20,393 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-11-08 15:58:20,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:58:20,450 INFO L225 Difference]: With dead ends: 48862 [2024-11-08 15:58:20,450 INFO L226 Difference]: Without dead ends: 34550 [2024-11-08 15:58:20,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-08 15:58:20,473 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 893 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 15:58:20,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [893 Valid, 946 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 15:58:20,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34550 states. [2024-11-08 15:58:21,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34550 to 25104. [2024-11-08 15:58:21,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25104 states, 25103 states have (on average 1.5327650081663546) internal successors, (38477), 25103 states have internal predecessors, (38477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:21,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25104 states to 25104 states and 38477 transitions. [2024-11-08 15:58:21,055 INFO L78 Accepts]: Start accepts. Automaton has 25104 states and 38477 transitions. Word has length 84 [2024-11-08 15:58:21,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:58:21,056 INFO L471 AbstractCegarLoop]: Abstraction has 25104 states and 38477 transitions. [2024-11-08 15:58:21,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:21,056 INFO L276 IsEmpty]: Start isEmpty. Operand 25104 states and 38477 transitions. [2024-11-08 15:58:21,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 15:58:21,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:58:21,062 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] [2024-11-08 15:58:21,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 15:58:21,062 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:58:21,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:58:21,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1543265332, now seen corresponding path program 1 times [2024-11-08 15:58:21,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:58:21,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107344034] [2024-11-08 15:58:21,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:58:21,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:58:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:58:21,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:58:21,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:58:21,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107344034] [2024-11-08 15:58:21,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107344034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:58:21,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:58:21,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 15:58:21,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734253148] [2024-11-08 15:58:21,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:58:21,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 15:58:21,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:58:21,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 15:58:21,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:58:21,397 INFO L87 Difference]: Start difference. First operand 25104 states and 38477 transitions. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:22,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:58:22,084 INFO L93 Difference]: Finished difference Result 41644 states and 63256 transitions. [2024-11-08 15:58:22,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 15:58:22,085 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-11-08 15:58:22,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:58:22,128 INFO L225 Difference]: With dead ends: 41644 [2024-11-08 15:58:22,129 INFO L226 Difference]: Without dead ends: 32810 [2024-11-08 15:58:22,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-08 15:58:22,149 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 860 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 15:58:22,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 1039 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 15:58:22,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32810 states. [2024-11-08 15:58:22,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32810 to 25640. [2024-11-08 15:58:22,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25640 states, 25639 states have (on average 1.5307929326416787) internal successors, (39248), 25639 states have internal predecessors, (39248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:22,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25640 states to 25640 states and 39248 transitions. [2024-11-08 15:58:22,556 INFO L78 Accepts]: Start accepts. Automaton has 25640 states and 39248 transitions. Word has length 84 [2024-11-08 15:58:22,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:58:22,556 INFO L471 AbstractCegarLoop]: Abstraction has 25640 states and 39248 transitions. [2024-11-08 15:58:22,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:22,557 INFO L276 IsEmpty]: Start isEmpty. Operand 25640 states and 39248 transitions. [2024-11-08 15:58:22,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 15:58:22,563 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:58:22,563 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] [2024-11-08 15:58:22,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 15:58:22,563 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:58:22,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:58:22,564 INFO L85 PathProgramCache]: Analyzing trace with hash 940384276, now seen corresponding path program 1 times [2024-11-08 15:58:22,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:58:22,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706280369] [2024-11-08 15:58:22,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:58:22,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:58:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:58:22,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:58:22,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:58:22,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706280369] [2024-11-08 15:58:22,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706280369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:58:22,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:58:22,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 15:58:22,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307278637] [2024-11-08 15:58:22,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:58:22,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 15:58:22,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:58:22,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 15:58:22,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:58:22,961 INFO L87 Difference]: Start difference. First operand 25640 states and 39248 transitions. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:23,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:58:23,557 INFO L93 Difference]: Finished difference Result 41525 states and 63210 transitions. [2024-11-08 15:58:23,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 15:58:23,558 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-11-08 15:58:23,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:58:23,605 INFO L225 Difference]: With dead ends: 41525 [2024-11-08 15:58:23,605 INFO L226 Difference]: Without dead ends: 38218 [2024-11-08 15:58:23,622 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2024-11-08 15:58:23,623 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 1307 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 1131 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 15:58:23,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 1131 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 15:58:23,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38218 states. [2024-11-08 15:58:23,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38218 to 25640. [2024-11-08 15:58:24,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25640 states, 25639 states have (on average 1.530636920316705) internal successors, (39244), 25639 states have internal predecessors, (39244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:24,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25640 states to 25640 states and 39244 transitions. [2024-11-08 15:58:24,043 INFO L78 Accepts]: Start accepts. Automaton has 25640 states and 39244 transitions. Word has length 84 [2024-11-08 15:58:24,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:58:24,043 INFO L471 AbstractCegarLoop]: Abstraction has 25640 states and 39244 transitions. [2024-11-08 15:58:24,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:24,044 INFO L276 IsEmpty]: Start isEmpty. Operand 25640 states and 39244 transitions. [2024-11-08 15:58:24,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 15:58:24,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:58:24,051 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] [2024-11-08 15:58:24,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 15:58:24,052 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:58:24,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:58:24,052 INFO L85 PathProgramCache]: Analyzing trace with hash -43340684, now seen corresponding path program 1 times [2024-11-08 15:58:24,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:58:24,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605088431] [2024-11-08 15:58:24,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:58:24,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:58:24,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:58:24,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:58:24,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:58:24,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605088431] [2024-11-08 15:58:24,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605088431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:58:24,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:58:24,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 15:58:24,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483517889] [2024-11-08 15:58:24,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:58:24,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 15:58:24,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:58:24,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 15:58:24,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:58:24,422 INFO L87 Difference]: Start difference. First operand 25640 states and 39244 transitions. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:25,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:58:25,165 INFO L93 Difference]: Finished difference Result 59356 states and 90251 transitions. [2024-11-08 15:58:25,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 15:58:25,165 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-11-08 15:58:25,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:58:25,214 INFO L225 Difference]: With dead ends: 59356 [2024-11-08 15:58:25,214 INFO L226 Difference]: Without dead ends: 39637 [2024-11-08 15:58:25,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-08 15:58:25,239 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 1396 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1396 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 15:58:25,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1396 Valid, 1235 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1031 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 15:58:25,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39637 states. [2024-11-08 15:58:25,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39637 to 26057. [2024-11-08 15:58:25,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26057 states, 26056 states have (on average 1.5268268345102856) internal successors, (39783), 26056 states have internal predecessors, (39783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:25,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26057 states to 26057 states and 39783 transitions. [2024-11-08 15:58:25,716 INFO L78 Accepts]: Start accepts. Automaton has 26057 states and 39783 transitions. Word has length 84 [2024-11-08 15:58:25,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:58:25,717 INFO L471 AbstractCegarLoop]: Abstraction has 26057 states and 39783 transitions. [2024-11-08 15:58:25,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:25,717 INFO L276 IsEmpty]: Start isEmpty. Operand 26057 states and 39783 transitions. [2024-11-08 15:58:25,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 15:58:25,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:58:25,722 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] [2024-11-08 15:58:25,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 15:58:25,723 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:58:25,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:58:25,723 INFO L85 PathProgramCache]: Analyzing trace with hash 558481556, now seen corresponding path program 1 times [2024-11-08 15:58:25,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:58:25,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998261938] [2024-11-08 15:58:25,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:58:25,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:58:25,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:58:26,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:58:26,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:58:26,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998261938] [2024-11-08 15:58:26,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998261938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:58:26,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:58:26,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 15:58:26,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821380376] [2024-11-08 15:58:26,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:58:26,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 15:58:26,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:58:26,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 15:58:26,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:58:26,061 INFO L87 Difference]: Start difference. First operand 26057 states and 39783 transitions. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:26,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:58:26,795 INFO L93 Difference]: Finished difference Result 66039 states and 100245 transitions. [2024-11-08 15:58:26,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 15:58:26,796 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-11-08 15:58:26,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:58:26,846 INFO L225 Difference]: With dead ends: 66039 [2024-11-08 15:58:26,846 INFO L226 Difference]: Without dead ends: 41405 [2024-11-08 15:58:26,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-08 15:58:26,872 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 1419 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 1047 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1419 SdHoareTripleChecker+Valid, 1249 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 15:58:26,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1419 Valid, 1249 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1047 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 15:58:26,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41405 states. [2024-11-08 15:58:27,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41405 to 26432. [2024-11-08 15:58:27,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26432 states, 26431 states have (on average 1.521584503045666) internal successors, (40217), 26431 states have internal predecessors, (40217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:27,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26432 states to 26432 states and 40217 transitions. [2024-11-08 15:58:27,267 INFO L78 Accepts]: Start accepts. Automaton has 26432 states and 40217 transitions. Word has length 84 [2024-11-08 15:58:27,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:58:27,267 INFO L471 AbstractCegarLoop]: Abstraction has 26432 states and 40217 transitions. [2024-11-08 15:58:27,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:27,268 INFO L276 IsEmpty]: Start isEmpty. Operand 26432 states and 40217 transitions. [2024-11-08 15:58:27,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-08 15:58:27,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:58:27,273 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] [2024-11-08 15:58:27,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 15:58:27,274 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:58:27,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:58:27,274 INFO L85 PathProgramCache]: Analyzing trace with hash -809169967, now seen corresponding path program 1 times [2024-11-08 15:58:27,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:58:27,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212485456] [2024-11-08 15:58:27,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:58:27,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:58:27,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:58:27,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:58:27,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:58:27,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212485456] [2024-11-08 15:58:27,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212485456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:58:27,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:58:27,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:58:27,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514364876] [2024-11-08 15:58:27,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:58:27,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:58:27,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:58:27,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:58:27,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:58:27,334 INFO L87 Difference]: Start difference. First operand 26432 states and 40217 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:27,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:58:27,464 INFO L93 Difference]: Finished difference Result 42934 states and 65517 transitions. [2024-11-08 15:58:27,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:58:27,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-11-08 15:58:27,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:58:27,499 INFO L225 Difference]: With dead ends: 42934 [2024-11-08 15:58:27,499 INFO L226 Difference]: Without dead ends: 31192 [2024-11-08 15:58:27,516 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 [2024-11-08 15:58:27,517 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 182 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:58:27,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 596 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:58:27,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31192 states. [2024-11-08 15:58:27,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31192 to 30922. [2024-11-08 15:58:27,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30922 states, 30921 states have (on average 1.506710649720255) internal successors, (46589), 30921 states have internal predecessors, (46589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:27,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30922 states to 30922 states and 46589 transitions. [2024-11-08 15:58:27,816 INFO L78 Accepts]: Start accepts. Automaton has 30922 states and 46589 transitions. Word has length 85 [2024-11-08 15:58:27,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:58:27,816 INFO L471 AbstractCegarLoop]: Abstraction has 30922 states and 46589 transitions. [2024-11-08 15:58:27,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:27,816 INFO L276 IsEmpty]: Start isEmpty. Operand 30922 states and 46589 transitions. [2024-11-08 15:58:27,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-08 15:58:27,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:58:27,822 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] [2024-11-08 15:58:27,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 15:58:27,822 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:58:27,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:58:27,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1668333247, now seen corresponding path program 1 times [2024-11-08 15:58:27,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:58:27,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805354413] [2024-11-08 15:58:27,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:58:27,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:58:27,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:58:27,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:58:27,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:58:27,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805354413] [2024-11-08 15:58:27,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805354413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:58:27,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:58:27,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 15:58:27,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366255031] [2024-11-08 15:58:27,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:58:27,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 15:58:27,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:58:27,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 15:58:27,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 15:58:27,971 INFO L87 Difference]: Start difference. First operand 30922 states and 46589 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:28,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:58:28,136 INFO L93 Difference]: Finished difference Result 84550 states and 127647 transitions. [2024-11-08 15:58:28,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:58:28,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-11-08 15:58:28,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:58:28,212 INFO L225 Difference]: With dead ends: 84550 [2024-11-08 15:58:28,212 INFO L226 Difference]: Without dead ends: 55956 [2024-11-08 15:58:28,245 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 [2024-11-08 15:58:28,246 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 202 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:58:28,246 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 729 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:58:28,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55956 states. [2024-11-08 15:58:28,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55956 to 55618. [2024-11-08 15:58:28,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55618 states, 55617 states have (on average 1.4953161803045831) internal successors, (83165), 55617 states have internal predecessors, (83165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:29,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55618 states to 55618 states and 83165 transitions. [2024-11-08 15:58:29,072 INFO L78 Accepts]: Start accepts. Automaton has 55618 states and 83165 transitions. Word has length 85 [2024-11-08 15:58:29,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:58:29,072 INFO L471 AbstractCegarLoop]: Abstraction has 55618 states and 83165 transitions. [2024-11-08 15:58:29,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:29,072 INFO L276 IsEmpty]: Start isEmpty. Operand 55618 states and 83165 transitions. [2024-11-08 15:58:29,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-08 15:58:29,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:58:29,079 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] [2024-11-08 15:58:29,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 15:58:29,079 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:58:29,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:58:29,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1032087708, now seen corresponding path program 1 times [2024-11-08 15:58:29,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:58:29,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153791737] [2024-11-08 15:58:29,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:58:29,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:58:29,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:58:29,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:58:29,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:58:29,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153791737] [2024-11-08 15:58:29,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153791737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:58:29,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:58:29,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:58:29,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649837931] [2024-11-08 15:58:29,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:58:29,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:58:29,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:58:29,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:58:29,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:58:29,140 INFO L87 Difference]: Start difference. First operand 55618 states and 83165 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:29,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:58:29,342 INFO L93 Difference]: Finished difference Result 73573 states and 109789 transitions. [2024-11-08 15:58:29,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:58:29,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-11-08 15:58:29,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:58:29,417 INFO L225 Difference]: With dead ends: 73573 [2024-11-08 15:58:29,417 INFO L226 Difference]: Without dead ends: 57127 [2024-11-08 15:58:29,446 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 [2024-11-08 15:58:29,446 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 174 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:58:29,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 573 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:58:29,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57127 states. [2024-11-08 15:58:30,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57127 to 52109. [2024-11-08 15:58:30,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52109 states, 52108 states have (on average 1.475262915483227) internal successors, (76873), 52108 states have internal predecessors, (76873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:30,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52109 states to 52109 states and 76873 transitions. [2024-11-08 15:58:30,196 INFO L78 Accepts]: Start accepts. Automaton has 52109 states and 76873 transitions. Word has length 85 [2024-11-08 15:58:30,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:58:30,196 INFO L471 AbstractCegarLoop]: Abstraction has 52109 states and 76873 transitions. [2024-11-08 15:58:30,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:30,198 INFO L276 IsEmpty]: Start isEmpty. Operand 52109 states and 76873 transitions. [2024-11-08 15:58:30,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-08 15:58:30,204 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:58:30,204 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] [2024-11-08 15:58:30,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 15:58:30,205 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:58:30,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:58:30,205 INFO L85 PathProgramCache]: Analyzing trace with hash 602240274, now seen corresponding path program 1 times [2024-11-08 15:58:30,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:58:30,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396114051] [2024-11-08 15:58:30,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:58:30,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:58:30,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:58:30,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:58:30,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:58:30,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396114051] [2024-11-08 15:58:30,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396114051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:58:30,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:58:30,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:58:30,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226631501] [2024-11-08 15:58:30,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:58:30,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:58:30,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:58:30,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:58:30,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:58:30,314 INFO L87 Difference]: Start difference. First operand 52109 states and 76873 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:30,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:58:30,675 INFO L93 Difference]: Finished difference Result 117586 states and 173775 transitions. [2024-11-08 15:58:30,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:58:30,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-11-08 15:58:30,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:58:30,772 INFO L225 Difference]: With dead ends: 117586 [2024-11-08 15:58:30,772 INFO L226 Difference]: Without dead ends: 71126 [2024-11-08 15:58:30,819 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 [2024-11-08 15:58:30,820 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 211 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:58:30,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 560 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:58:30,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71126 states. [2024-11-08 15:58:31,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71126 to 70972. [2024-11-08 15:58:31,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70972 states, 70971 states have (on average 1.4622592326443196) internal successors, (103778), 70971 states have internal predecessors, (103778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:32,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70972 states to 70972 states and 103778 transitions. [2024-11-08 15:58:32,015 INFO L78 Accepts]: Start accepts. Automaton has 70972 states and 103778 transitions. Word has length 85 [2024-11-08 15:58:32,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:58:32,015 INFO L471 AbstractCegarLoop]: Abstraction has 70972 states and 103778 transitions. [2024-11-08 15:58:32,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:32,016 INFO L276 IsEmpty]: Start isEmpty. Operand 70972 states and 103778 transitions. [2024-11-08 15:58:32,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-08 15:58:32,021 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:58:32,022 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] [2024-11-08 15:58:32,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 15:58:32,022 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:58:32,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:58:32,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1239856238, now seen corresponding path program 1 times [2024-11-08 15:58:32,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:58:32,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778314690] [2024-11-08 15:58:32,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:58:32,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:58:32,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:58:32,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:58:32,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:58:32,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778314690] [2024-11-08 15:58:32,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778314690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:58:32,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:58:32,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:58:32,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218545273] [2024-11-08 15:58:32,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:58:32,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:58:32,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:58:32,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:58:32,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:58:32,062 INFO L87 Difference]: Start difference. First operand 70972 states and 103778 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:32,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:58:32,643 INFO L93 Difference]: Finished difference Result 138386 states and 202347 transitions. [2024-11-08 15:58:32,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:58:32,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-11-08 15:58:32,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:58:32,940 INFO L225 Difference]: With dead ends: 138386 [2024-11-08 15:58:32,940 INFO L226 Difference]: Without dead ends: 85332 [2024-11-08 15:58:32,974 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 [2024-11-08 15:58:32,974 INFO L432 NwaCegarLoop]: 400 mSDtfsCounter, 187 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:58:32,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 668 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:58:33,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85332 states. [2024-11-08 15:58:33,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85332 to 84562. [2024-11-08 15:58:33,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84562 states, 84561 states have (on average 1.4373647426118423) internal successors, (121545), 84561 states have internal predecessors, (121545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:33,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84562 states to 84562 states and 121545 transitions. [2024-11-08 15:58:33,916 INFO L78 Accepts]: Start accepts. Automaton has 84562 states and 121545 transitions. Word has length 85 [2024-11-08 15:58:33,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:58:33,916 INFO L471 AbstractCegarLoop]: Abstraction has 84562 states and 121545 transitions. [2024-11-08 15:58:33,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:33,917 INFO L276 IsEmpty]: Start isEmpty. Operand 84562 states and 121545 transitions. [2024-11-08 15:58:33,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-08 15:58:33,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:58:33,923 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] [2024-11-08 15:58:33,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 15:58:33,923 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:58:33,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:58:33,924 INFO L85 PathProgramCache]: Analyzing trace with hash -2007724431, now seen corresponding path program 1 times [2024-11-08 15:58:33,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:58:33,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731041413] [2024-11-08 15:58:33,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:58:33,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:58:33,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:58:34,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:58:34,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:58:34,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731041413] [2024-11-08 15:58:34,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731041413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:58:34,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:58:34,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:58:34,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083767100] [2024-11-08 15:58:34,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:58:34,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:58:34,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:58:34,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:58:34,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:58:34,228 INFO L87 Difference]: Start difference. First operand 84562 states and 121545 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:34,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:58:34,640 INFO L93 Difference]: Finished difference Result 182796 states and 262011 transitions. [2024-11-08 15:58:34,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:58:34,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-11-08 15:58:34,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:58:34,773 INFO L225 Difference]: With dead ends: 182796 [2024-11-08 15:58:34,773 INFO L226 Difference]: Without dead ends: 104146 [2024-11-08 15:58:34,835 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 [2024-11-08 15:58:34,836 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 200 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:58:34,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 558 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:58:34,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104146 states. [2024-11-08 15:58:36,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104146 to 103428. [2024-11-08 15:58:36,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103428 states, 103427 states have (on average 1.4073694489833408) internal successors, (145560), 103427 states have internal predecessors, (145560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:36,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103428 states to 103428 states and 145560 transitions. [2024-11-08 15:58:36,806 INFO L78 Accepts]: Start accepts. Automaton has 103428 states and 145560 transitions. Word has length 85 [2024-11-08 15:58:36,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:58:36,806 INFO L471 AbstractCegarLoop]: Abstraction has 103428 states and 145560 transitions. [2024-11-08 15:58:36,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:36,806 INFO L276 IsEmpty]: Start isEmpty. Operand 103428 states and 145560 transitions. [2024-11-08 15:58:36,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-08 15:58:36,811 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:58:36,812 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] [2024-11-08 15:58:36,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 15:58:36,812 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:58:36,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:58:36,812 INFO L85 PathProgramCache]: Analyzing trace with hash 450366669, now seen corresponding path program 1 times [2024-11-08 15:58:36,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:58:36,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269214080] [2024-11-08 15:58:36,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:58:36,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:58:36,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:58:36,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:58:36,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:58:36,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269214080] [2024-11-08 15:58:36,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269214080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:58:36,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:58:36,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:58:36,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250694260] [2024-11-08 15:58:36,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:58:36,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:58:36,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:58:36,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:58:36,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:58:36,906 INFO L87 Difference]: Start difference. First operand 103428 states and 145560 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:37,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:58:37,768 INFO L93 Difference]: Finished difference Result 251900 states and 357364 transitions. [2024-11-08 15:58:37,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 15:58:37,769 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2024-11-08 15:58:37,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:58:38,082 INFO L225 Difference]: With dead ends: 251900 [2024-11-08 15:58:38,083 INFO L226 Difference]: Without dead ends: 214494 [2024-11-08 15:58:38,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 15:58:38,120 INFO L432 NwaCegarLoop]: 450 mSDtfsCounter, 1761 mSDsluCounter, 1232 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1761 SdHoareTripleChecker+Valid, 1682 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:58:38,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1761 Valid, 1682 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:58:38,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214494 states. [2024-11-08 15:58:40,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214494 to 140379. [2024-11-08 15:58:40,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140379 states, 140378 states have (on average 1.4078274373477326) internal successors, (197628), 140378 states have internal predecessors, (197628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:40,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140379 states to 140379 states and 197628 transitions. [2024-11-08 15:58:40,801 INFO L78 Accepts]: Start accepts. Automaton has 140379 states and 197628 transitions. Word has length 86 [2024-11-08 15:58:40,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:58:40,801 INFO L471 AbstractCegarLoop]: Abstraction has 140379 states and 197628 transitions. [2024-11-08 15:58:40,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:40,801 INFO L276 IsEmpty]: Start isEmpty. Operand 140379 states and 197628 transitions. [2024-11-08 15:58:40,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-08 15:58:40,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:58:40,808 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] [2024-11-08 15:58:40,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 15:58:40,808 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:58:40,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:58:40,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1550139528, now seen corresponding path program 1 times [2024-11-08 15:58:40,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:58:40,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307949055] [2024-11-08 15:58:40,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:58:40,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:58:40,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:58:40,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:58:40,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:58:40,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307949055] [2024-11-08 15:58:40,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307949055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:58:40,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:58:40,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:58:40,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760470383] [2024-11-08 15:58:40,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:58:40,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:58:40,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:58:40,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:58:40,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:58:40,904 INFO L87 Difference]: Start difference. First operand 140379 states and 197628 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:42,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:58:42,109 INFO L93 Difference]: Finished difference Result 262914 states and 372423 transitions. [2024-11-08 15:58:42,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 15:58:42,110 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2024-11-08 15:58:42,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:58:42,611 INFO L225 Difference]: With dead ends: 262914 [2024-11-08 15:58:42,611 INFO L226 Difference]: Without dead ends: 238540 [2024-11-08 15:58:42,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 15:58:42,708 INFO L432 NwaCegarLoop]: 439 mSDtfsCounter, 1856 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1856 SdHoareTripleChecker+Valid, 1704 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:58:42,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1856 Valid, 1704 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:58:42,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238540 states. [2024-11-08 15:58:44,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238540 to 155701. [2024-11-08 15:58:44,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155701 states, 155700 states have (on average 1.4095311496467566) internal successors, (219464), 155700 states have internal predecessors, (219464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:45,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155701 states to 155701 states and 219464 transitions. [2024-11-08 15:58:45,286 INFO L78 Accepts]: Start accepts. Automaton has 155701 states and 219464 transitions. Word has length 86 [2024-11-08 15:58:45,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:58:45,286 INFO L471 AbstractCegarLoop]: Abstraction has 155701 states and 219464 transitions. [2024-11-08 15:58:45,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:45,287 INFO L276 IsEmpty]: Start isEmpty. Operand 155701 states and 219464 transitions. [2024-11-08 15:58:45,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-08 15:58:45,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:58:45,293 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] [2024-11-08 15:58:45,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 15:58:45,293 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:58:45,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:58:45,294 INFO L85 PathProgramCache]: Analyzing trace with hash -989600111, now seen corresponding path program 1 times [2024-11-08 15:58:45,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:58:45,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294429767] [2024-11-08 15:58:45,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:58:45,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:58:45,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:58:45,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:58:45,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:58:45,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294429767] [2024-11-08 15:58:45,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294429767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:58:45,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:58:45,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:58:45,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754575756] [2024-11-08 15:58:45,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:58:45,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:58:45,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:58:45,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:58:45,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:58:45,862 INFO L87 Difference]: Start difference. First operand 155701 states and 219464 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:46,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:58:46,633 INFO L93 Difference]: Finished difference Result 260196 states and 368193 transitions. [2024-11-08 15:58:46,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 15:58:46,634 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2024-11-08 15:58:46,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:58:47,086 INFO L225 Difference]: With dead ends: 260196 [2024-11-08 15:58:47,087 INFO L226 Difference]: Without dead ends: 249286 [2024-11-08 15:58:47,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 15:58:47,179 INFO L432 NwaCegarLoop]: 432 mSDtfsCounter, 1765 mSDsluCounter, 1380 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1765 SdHoareTripleChecker+Valid, 1812 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:58:47,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1765 Valid, 1812 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:58:47,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249286 states. [2024-11-08 15:58:49,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249286 to 166447. [2024-11-08 15:58:50,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166447 states, 166446 states have (on average 1.4096944354325127) internal successors, (234638), 166446 states have internal predecessors, (234638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:50,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166447 states to 166447 states and 234638 transitions. [2024-11-08 15:58:50,719 INFO L78 Accepts]: Start accepts. Automaton has 166447 states and 234638 transitions. Word has length 86 [2024-11-08 15:58:50,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:58:50,719 INFO L471 AbstractCegarLoop]: Abstraction has 166447 states and 234638 transitions. [2024-11-08 15:58:50,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:50,719 INFO L276 IsEmpty]: Start isEmpty. Operand 166447 states and 234638 transitions. [2024-11-08 15:58:50,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-08 15:58:50,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:58:50,735 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] [2024-11-08 15:58:50,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 15:58:50,736 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:58:50,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:58:50,736 INFO L85 PathProgramCache]: Analyzing trace with hash -305204276, now seen corresponding path program 1 times [2024-11-08 15:58:50,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:58:50,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561237974] [2024-11-08 15:58:50,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:58:50,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:58:50,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:58:50,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:58:50,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:58:50,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561237974] [2024-11-08 15:58:50,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561237974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:58:50,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:58:50,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:58:50,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466498317] [2024-11-08 15:58:50,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:58:50,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:58:50,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:58:50,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:58:50,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:58:50,864 INFO L87 Difference]: Start difference. First operand 166447 states and 234638 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:52,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:58:52,549 INFO L93 Difference]: Finished difference Result 332077 states and 470446 transitions. [2024-11-08 15:58:52,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 15:58:52,551 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2024-11-08 15:58:52,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:58:52,980 INFO L225 Difference]: With dead ends: 332077 [2024-11-08 15:58:52,981 INFO L226 Difference]: Without dead ends: 286055 [2024-11-08 15:58:53,049 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 15:58:53,049 INFO L432 NwaCegarLoop]: 466 mSDtfsCounter, 1666 mSDsluCounter, 1615 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1666 SdHoareTripleChecker+Valid, 2081 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:58:53,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1666 Valid, 2081 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:58:53,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286055 states. [2024-11-08 15:58:55,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286055 to 191710. [2024-11-08 15:58:55,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191710 states, 191709 states have (on average 1.4109040264150352) internal successors, (270483), 191709 states have internal predecessors, (270483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:55,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191710 states to 191710 states and 270483 transitions. [2024-11-08 15:58:55,825 INFO L78 Accepts]: Start accepts. Automaton has 191710 states and 270483 transitions. Word has length 86 [2024-11-08 15:58:55,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:58:55,826 INFO L471 AbstractCegarLoop]: Abstraction has 191710 states and 270483 transitions. [2024-11-08 15:58:55,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:55,826 INFO L276 IsEmpty]: Start isEmpty. Operand 191710 states and 270483 transitions. [2024-11-08 15:58:55,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-08 15:58:55,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:58:55,832 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] [2024-11-08 15:58:55,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 15:58:55,832 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:58:55,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:58:55,834 INFO L85 PathProgramCache]: Analyzing trace with hash 643153923, now seen corresponding path program 1 times [2024-11-08 15:58:55,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:58:55,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608598586] [2024-11-08 15:58:55,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:58:55,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:58:55,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:58:55,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:58:55,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:58:55,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608598586] [2024-11-08 15:58:55,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608598586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:58:55,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:58:55,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:58:55,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71796162] [2024-11-08 15:58:55,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:58:55,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:58:55,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:58:55,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:58:55,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:58:55,925 INFO L87 Difference]: Start difference. First operand 191710 states and 270483 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:58:57,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:58:57,595 INFO L93 Difference]: Finished difference Result 367773 states and 520647 transitions. [2024-11-08 15:58:57,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 15:58:57,596 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2024-11-08 15:58:57,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:58:58,164 INFO L225 Difference]: With dead ends: 367773 [2024-11-08 15:58:58,165 INFO L226 Difference]: Without dead ends: 324310 [2024-11-08 15:58:58,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 15:58:58,301 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 1673 mSDsluCounter, 1412 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1673 SdHoareTripleChecker+Valid, 1884 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 15:58:58,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1673 Valid, 1884 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 15:58:58,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324310 states. [2024-11-08 15:59:01,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324310 to 209967. [2024-11-08 15:59:01,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209967 states, 209966 states have (on average 1.41113799377042) internal successors, (296291), 209966 states have internal predecessors, (296291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:59:02,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209967 states to 209967 states and 296291 transitions. [2024-11-08 15:59:02,268 INFO L78 Accepts]: Start accepts. Automaton has 209967 states and 296291 transitions. Word has length 86 [2024-11-08 15:59:02,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:59:02,268 INFO L471 AbstractCegarLoop]: Abstraction has 209967 states and 296291 transitions. [2024-11-08 15:59:02,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:59:02,269 INFO L276 IsEmpty]: Start isEmpty. Operand 209967 states and 296291 transitions. [2024-11-08 15:59:02,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-08 15:59:02,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:59:02,279 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] [2024-11-08 15:59:02,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-08 15:59:02,279 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:59:02,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:59:02,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1542932196, now seen corresponding path program 1 times [2024-11-08 15:59:02,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:59:02,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167032445] [2024-11-08 15:59:02,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:59:02,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:59:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:59:02,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:59:02,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:59:02,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167032445] [2024-11-08 15:59:02,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167032445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:59:02,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:59:02,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 15:59:02,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503425647] [2024-11-08 15:59:02,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:59:02,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:59:02,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:59:02,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:59:02,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:59:02,457 INFO L87 Difference]: Start difference. First operand 209967 states and 296291 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)