./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.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 eb6a86313c6847913ca8b6f4f78c128447d9c9cbacc492e7ef1a5540e3f6a711 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 20:24:15,368 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 20:24:15,430 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 20:24:15,437 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 20:24:15,437 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 20:24:15,466 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 20:24:15,467 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 20:24:15,467 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 20:24:15,468 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 20:24:15,472 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 20:24:15,473 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 20:24:15,473 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 20:24:15,474 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 20:24:15,474 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 20:24:15,474 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 20:24:15,475 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 20:24:15,475 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 20:24:15,475 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 20:24:15,475 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 20:24:15,476 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 20:24:15,478 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 20:24:15,480 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 20:24:15,480 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 20:24:15,480 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 20:24:15,480 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 20:24:15,481 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 20:24:15,481 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 20:24:15,481 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 20:24:15,482 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 20:24:15,482 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 20:24:15,482 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 20:24:15,483 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 20:24:15,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 20:24:15,483 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 20:24:15,484 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 20:24:15,484 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 20:24:15,484 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 20:24:15,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 20:24:15,485 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 20:24:15,485 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 20:24:15,485 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 20:24:15,486 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 20:24:15,486 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb6a86313c6847913ca8b6f4f78c128447d9c9cbacc492e7ef1a5540e3f6a711 [2024-10-12 20:24:15,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 20:24:15,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 20:24:15,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 20:24:15,768 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 20:24:15,769 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 20:24:15,770 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-12 20:24:17,244 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 20:24:17,474 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 20:24:17,475 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-12 20:24:17,488 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af012cf18/ed2a903a82d5433fa4c3dcfee73ee451/FLAG577b2548f [2024-10-12 20:24:17,798 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af012cf18/ed2a903a82d5433fa4c3dcfee73ee451 [2024-10-12 20:24:17,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 20:24:17,802 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 20:24:17,803 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 20:24:17,803 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 20:24:17,809 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 20:24:17,809 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 08:24:17" (1/1) ... [2024-10-12 20:24:17,810 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@600f8381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:24:17, skipping insertion in model container [2024-10-12 20:24:17,810 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 08:24:17" (1/1) ... [2024-10-12 20:24:17,865 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 20:24:18,134 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[8460,8473] [2024-10-12 20:24:18,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 20:24:18,222 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 20:24:18,278 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[8460,8473] [2024-10-12 20:24:18,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 20:24:18,342 INFO L204 MainTranslator]: Completed translation [2024-10-12 20:24:18,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:24:18 WrapperNode [2024-10-12 20:24:18,343 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 20:24:18,344 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 20:24:18,344 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 20:24:18,344 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 20:24:18,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:24:18" (1/1) ... [2024-10-12 20:24:18,361 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:24:18" (1/1) ... [2024-10-12 20:24:18,428 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 838 [2024-10-12 20:24:18,429 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 20:24:18,429 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 20:24:18,430 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 20:24:18,430 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 20:24:18,454 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:24:18" (1/1) ... [2024-10-12 20:24:18,455 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:24:18" (1/1) ... [2024-10-12 20:24:18,464 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:24:18" (1/1) ... [2024-10-12 20:24:18,516 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-12 20:24:18,517 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:24:18" (1/1) ... [2024-10-12 20:24:18,517 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:24:18" (1/1) ... [2024-10-12 20:24:18,539 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:24:18" (1/1) ... [2024-10-12 20:24:18,551 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:24:18" (1/1) ... [2024-10-12 20:24:18,557 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:24:18" (1/1) ... [2024-10-12 20:24:18,565 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:24:18" (1/1) ... [2024-10-12 20:24:18,571 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 20:24:18,580 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 20:24:18,580 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 20:24:18,580 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 20:24:18,581 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:24:18" (1/1) ... [2024-10-12 20:24:18,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 20:24:18,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 20:24:18,627 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 20:24:18,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 20:24:18,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 20:24:18,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 20:24:18,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 20:24:18,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 20:24:18,787 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 20:24:18,789 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 20:24:19,538 INFO L? ?]: Removed 93 outVars from TransFormulas that were not future-live. [2024-10-12 20:24:19,538 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 20:24:19,605 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 20:24:19,606 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-12 20:24:19,606 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:24:19 BoogieIcfgContainer [2024-10-12 20:24:19,606 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 20:24:19,610 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 20:24:19,610 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 20:24:19,613 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 20:24:19,614 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 08:24:17" (1/3) ... [2024-10-12 20:24:19,614 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fbf4ccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:24:19, skipping insertion in model container [2024-10-12 20:24:19,614 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:24:18" (2/3) ... [2024-10-12 20:24:19,615 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fbf4ccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:24:19, skipping insertion in model container [2024-10-12 20:24:19,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:24:19" (3/3) ... [2024-10-12 20:24:19,616 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-12 20:24:19,632 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 20:24:19,633 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 20:24:19,723 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 20:24:19,730 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;@5e1ed2a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 20:24:19,730 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 20:24:19,736 INFO L276 IsEmpty]: Start isEmpty. Operand has 204 states, 202 states have (on average 1.7277227722772277) internal successors, (349), 203 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:19,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-12 20:24:19,747 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:19,747 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:24:19,748 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:19,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:19,754 INFO L85 PathProgramCache]: Analyzing trace with hash 2110387698, now seen corresponding path program 1 times [2024-10-12 20:24:19,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:19,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705270900] [2024-10-12 20:24:19,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:19,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:19,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:20,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:20,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:20,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705270900] [2024-10-12 20:24:20,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705270900] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:20,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:20,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:24:20,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190746304] [2024-10-12 20:24:20,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:20,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:24:20,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:20,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:24:20,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:24:20,520 INFO L87 Difference]: Start difference. First operand has 204 states, 202 states have (on average 1.7277227722772277) internal successors, (349), 203 states have internal predecessors, (349), 0 states have call successors, (0), 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 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:20,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:20,849 INFO L93 Difference]: Finished difference Result 820 states and 1331 transitions. [2024-10-12 20:24:20,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 20:24:20,851 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-10-12 20:24:20,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:20,869 INFO L225 Difference]: With dead ends: 820 [2024-10-12 20:24:20,870 INFO L226 Difference]: Without dead ends: 712 [2024-10-12 20:24:20,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-10-12 20:24:20,880 INFO L432 NwaCegarLoop]: 342 mSDtfsCounter, 2412 mSDsluCounter, 1935 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2412 SdHoareTripleChecker+Valid, 2277 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:20,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2412 Valid, 2277 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:24:20,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-10-12 20:24:20,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 313. [2024-10-12 20:24:20,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 312 states have (on average 1.5064102564102564) internal successors, (470), 312 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:20,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 470 transitions. [2024-10-12 20:24:20,960 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 470 transitions. Word has length 78 [2024-10-12 20:24:20,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:20,961 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 470 transitions. [2024-10-12 20:24:20,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:20,961 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 470 transitions. [2024-10-12 20:24:20,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-12 20:24:20,965 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:20,965 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] [2024-10-12 20:24:20,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 20:24:20,966 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:20,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:20,967 INFO L85 PathProgramCache]: Analyzing trace with hash 735167031, now seen corresponding path program 1 times [2024-10-12 20:24:20,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:20,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693031117] [2024-10-12 20:24:20,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:20,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:21,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:21,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:21,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:21,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693031117] [2024-10-12 20:24:21,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693031117] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:21,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:21,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:24:21,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376169285] [2024-10-12 20:24:21,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:21,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:24:21,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:21,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:24:21,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:24:21,407 INFO L87 Difference]: Start difference. First operand 313 states and 470 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:21,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:21,644 INFO L93 Difference]: Finished difference Result 1369 states and 2123 transitions. [2024-10-12 20:24:21,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 20:24:21,644 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-10-12 20:24:21,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:21,651 INFO L225 Difference]: With dead ends: 1369 [2024-10-12 20:24:21,652 INFO L226 Difference]: Without dead ends: 1131 [2024-10-12 20:24:21,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:24:21,655 INFO L432 NwaCegarLoop]: 453 mSDtfsCounter, 1326 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:21,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1326 Valid, 1178 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:24:21,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2024-10-12 20:24:21,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 1123. [2024-10-12 20:24:21,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1123 states, 1122 states have (on average 1.5463458110516934) internal successors, (1735), 1122 states have internal predecessors, (1735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:21,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1735 transitions. [2024-10-12 20:24:21,694 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1735 transitions. Word has length 79 [2024-10-12 20:24:21,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:21,694 INFO L471 AbstractCegarLoop]: Abstraction has 1123 states and 1735 transitions. [2024-10-12 20:24:21,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:21,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1735 transitions. [2024-10-12 20:24:21,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-12 20:24:21,698 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:21,698 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] [2024-10-12 20:24:21,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 20:24:21,699 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:21,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:21,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1125744395, now seen corresponding path program 1 times [2024-10-12 20:24:21,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:21,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223259504] [2024-10-12 20:24:21,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:21,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:21,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:21,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:21,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:21,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223259504] [2024-10-12 20:24:21,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223259504] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:21,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:21,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:24:21,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165008945] [2024-10-12 20:24:21,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:21,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:24:21,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:21,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:24:21,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:24:21,918 INFO L87 Difference]: Start difference. First operand 1123 states and 1735 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 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) [2024-10-12 20:24:22,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:22,188 INFO L93 Difference]: Finished difference Result 2980 states and 4660 transitions. [2024-10-12 20:24:22,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:24:22,189 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 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 [2024-10-12 20:24:22,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:22,200 INFO L225 Difference]: With dead ends: 2980 [2024-10-12 20:24:22,200 INFO L226 Difference]: Without dead ends: 1933 [2024-10-12 20:24:22,205 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:24:22,209 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 1111 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:22,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1111 Valid, 285 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:24:22,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1933 states. [2024-10-12 20:24:22,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1933 to 1931. [2024-10-12 20:24:22,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1931 states, 1930 states have (on average 1.5549222797927462) internal successors, (3001), 1930 states have internal predecessors, (3001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:22,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1931 states to 1931 states and 3001 transitions. [2024-10-12 20:24:22,255 INFO L78 Accepts]: Start accepts. Automaton has 1931 states and 3001 transitions. Word has length 80 [2024-10-12 20:24:22,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:22,255 INFO L471 AbstractCegarLoop]: Abstraction has 1931 states and 3001 transitions. [2024-10-12 20:24:22,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 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) [2024-10-12 20:24:22,256 INFO L276 IsEmpty]: Start isEmpty. Operand 1931 states and 3001 transitions. [2024-10-12 20:24:22,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-12 20:24:22,259 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:22,259 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] [2024-10-12 20:24:22,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 20:24:22,259 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:22,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:22,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1448499369, now seen corresponding path program 1 times [2024-10-12 20:24:22,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:22,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373836955] [2024-10-12 20:24:22,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:22,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:22,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:22,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:22,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373836955] [2024-10-12 20:24:22,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373836955] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:22,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:22,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:24:22,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008110977] [2024-10-12 20:24:22,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:22,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:24:22,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:22,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:24:22,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:24:22,390 INFO L87 Difference]: Start difference. First operand 1931 states and 3001 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 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) [2024-10-12 20:24:22,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:22,629 INFO L93 Difference]: Finished difference Result 5244 states and 8232 transitions. [2024-10-12 20:24:22,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:24:22,630 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 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 [2024-10-12 20:24:22,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:22,642 INFO L225 Difference]: With dead ends: 5244 [2024-10-12 20:24:22,643 INFO L226 Difference]: Without dead ends: 3453 [2024-10-12 20:24:22,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:24:22,648 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 1065 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1065 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:22,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1065 Valid, 296 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:24:22,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3453 states. [2024-10-12 20:24:22,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3453 to 3451. [2024-10-12 20:24:22,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3451 states, 3450 states have (on average 1.561159420289855) internal successors, (5386), 3450 states have internal predecessors, (5386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:22,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3451 states to 3451 states and 5386 transitions. [2024-10-12 20:24:22,754 INFO L78 Accepts]: Start accepts. Automaton has 3451 states and 5386 transitions. Word has length 80 [2024-10-12 20:24:22,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:22,755 INFO L471 AbstractCegarLoop]: Abstraction has 3451 states and 5386 transitions. [2024-10-12 20:24:22,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 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) [2024-10-12 20:24:22,755 INFO L276 IsEmpty]: Start isEmpty. Operand 3451 states and 5386 transitions. [2024-10-12 20:24:22,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-12 20:24:22,757 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:22,757 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] [2024-10-12 20:24:22,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 20:24:22,758 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:22,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:22,759 INFO L85 PathProgramCache]: Analyzing trace with hash 892389702, now seen corresponding path program 1 times [2024-10-12 20:24:22,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:22,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757212347] [2024-10-12 20:24:22,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:22,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:22,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:22,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:22,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:22,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757212347] [2024-10-12 20:24:22,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757212347] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:22,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:22,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:24:22,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415903612] [2024-10-12 20:24:22,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:22,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:24:22,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:22,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:24:22,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:24:22,888 INFO L87 Difference]: Start difference. First operand 3451 states and 5386 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 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) [2024-10-12 20:24:23,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:23,137 INFO L93 Difference]: Finished difference Result 9852 states and 15453 transitions. [2024-10-12 20:24:23,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:24:23,138 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 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 [2024-10-12 20:24:23,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:23,161 INFO L225 Difference]: With dead ends: 9852 [2024-10-12 20:24:23,162 INFO L226 Difference]: Without dead ends: 6507 [2024-10-12 20:24:23,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:24:23,172 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 1071 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:23,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 285 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:24:23,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6507 states. [2024-10-12 20:24:23,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6507 to 6505. [2024-10-12 20:24:23,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6505 states, 6504 states have (on average 1.5601168511685117) internal successors, (10147), 6504 states have internal predecessors, (10147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:23,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6505 states to 6505 states and 10147 transitions. [2024-10-12 20:24:23,335 INFO L78 Accepts]: Start accepts. Automaton has 6505 states and 10147 transitions. Word has length 80 [2024-10-12 20:24:23,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:23,336 INFO L471 AbstractCegarLoop]: Abstraction has 6505 states and 10147 transitions. [2024-10-12 20:24:23,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 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) [2024-10-12 20:24:23,337 INFO L276 IsEmpty]: Start isEmpty. Operand 6505 states and 10147 transitions. [2024-10-12 20:24:23,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-12 20:24:23,343 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:23,343 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] [2024-10-12 20:24:23,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 20:24:23,343 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:23,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:23,344 INFO L85 PathProgramCache]: Analyzing trace with hash -311079324, now seen corresponding path program 1 times [2024-10-12 20:24:23,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:23,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459179730] [2024-10-12 20:24:23,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:23,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:23,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:23,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:23,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:23,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459179730] [2024-10-12 20:24:23,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459179730] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:23,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:23,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:24:23,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511810833] [2024-10-12 20:24:23,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:23,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:24:23,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:23,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:24:23,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:24:23,503 INFO L87 Difference]: Start difference. First operand 6505 states and 10147 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 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) [2024-10-12 20:24:23,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:23,837 INFO L93 Difference]: Finished difference Result 19179 states and 29997 transitions. [2024-10-12 20:24:23,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:24:23,838 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 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 [2024-10-12 20:24:23,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:23,901 INFO L225 Difference]: With dead ends: 19179 [2024-10-12 20:24:23,904 INFO L226 Difference]: Without dead ends: 12727 [2024-10-12 20:24:23,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:24:23,919 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 1129 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:23,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1129 Valid, 281 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:24:23,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12727 states. [2024-10-12 20:24:24,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12727 to 12725. [2024-10-12 20:24:24,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12725 states, 12724 states have (on average 1.5545425966677147) internal successors, (19780), 12724 states have internal predecessors, (19780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:24,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12725 states to 12725 states and 19780 transitions. [2024-10-12 20:24:24,265 INFO L78 Accepts]: Start accepts. Automaton has 12725 states and 19780 transitions. Word has length 80 [2024-10-12 20:24:24,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:24,266 INFO L471 AbstractCegarLoop]: Abstraction has 12725 states and 19780 transitions. [2024-10-12 20:24:24,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 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) [2024-10-12 20:24:24,266 INFO L276 IsEmpty]: Start isEmpty. Operand 12725 states and 19780 transitions. [2024-10-12 20:24:24,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-12 20:24:24,272 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:24,272 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:24:24,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 20:24:24,272 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:24,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:24,273 INFO L85 PathProgramCache]: Analyzing trace with hash -2094287709, now seen corresponding path program 1 times [2024-10-12 20:24:24,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:24,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310439934] [2024-10-12 20:24:24,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:24,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:24,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:24,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:24,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310439934] [2024-10-12 20:24:24,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310439934] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:24,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:24,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 20:24:24,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027108737] [2024-10-12 20:24:24,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:24,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:24:24,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:24,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:24:24,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:24:24,663 INFO L87 Difference]: Start difference. First operand 12725 states and 19780 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:24,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:24,729 INFO L93 Difference]: Finished difference Result 13047 states and 20261 transitions. [2024-10-12 20:24:24,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:24:24,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-10-12 20:24:24,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:24,758 INFO L225 Difference]: With dead ends: 13047 [2024-10-12 20:24:24,758 INFO L226 Difference]: Without dead ends: 13045 [2024-10-12 20:24:24,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:24:24,767 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 0 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:24,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1113 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:24:24,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13045 states. [2024-10-12 20:24:24,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13045 to 13045. [2024-10-12 20:24:24,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13045 states, 13044 states have (on average 1.5409383624655013) internal successors, (20100), 13044 states have internal predecessors, (20100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:25,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13045 states to 13045 states and 20100 transitions. [2024-10-12 20:24:25,030 INFO L78 Accepts]: Start accepts. Automaton has 13045 states and 20100 transitions. Word has length 81 [2024-10-12 20:24:25,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:25,030 INFO L471 AbstractCegarLoop]: Abstraction has 13045 states and 20100 transitions. [2024-10-12 20:24:25,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:25,031 INFO L276 IsEmpty]: Start isEmpty. Operand 13045 states and 20100 transitions. [2024-10-12 20:24:25,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-12 20:24:25,036 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:25,036 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:24:25,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 20:24:25,036 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:25,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:25,037 INFO L85 PathProgramCache]: Analyzing trace with hash -237115299, now seen corresponding path program 1 times [2024-10-12 20:24:25,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:25,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867256406] [2024-10-12 20:24:25,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:25,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:25,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:25,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:25,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867256406] [2024-10-12 20:24:25,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867256406] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:25,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:25,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 20:24:25,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048319347] [2024-10-12 20:24:25,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:25,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 20:24:25,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:25,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 20:24:25,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-12 20:24:25,473 INFO L87 Difference]: Start difference. First operand 13045 states and 20100 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:26,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:26,248 INFO L93 Difference]: Finished difference Result 24506 states and 37501 transitions. [2024-10-12 20:24:26,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 20:24:26,249 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-10-12 20:24:26,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:26,288 INFO L225 Difference]: With dead ends: 24506 [2024-10-12 20:24:26,289 INFO L226 Difference]: Without dead ends: 17748 [2024-10-12 20:24:26,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-10-12 20:24:26,308 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 860 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:26,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 905 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-12 20:24:26,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17748 states. [2024-10-12 20:24:26,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17748 to 13226. [2024-10-12 20:24:26,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13226 states, 13225 states have (on average 1.5388279773156899) internal successors, (20351), 13225 states have internal predecessors, (20351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:26,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13226 states to 13226 states and 20351 transitions. [2024-10-12 20:24:26,622 INFO L78 Accepts]: Start accepts. Automaton has 13226 states and 20351 transitions. Word has length 82 [2024-10-12 20:24:26,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:26,623 INFO L471 AbstractCegarLoop]: Abstraction has 13226 states and 20351 transitions. [2024-10-12 20:24:26,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:26,623 INFO L276 IsEmpty]: Start isEmpty. Operand 13226 states and 20351 transitions. [2024-10-12 20:24:26,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-12 20:24:26,627 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:26,627 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:24:26,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 20:24:26,628 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:26,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:26,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1989457949, now seen corresponding path program 1 times [2024-10-12 20:24:26,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:26,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087915362] [2024-10-12 20:24:26,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:26,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:26,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:27,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:27,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:27,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087915362] [2024-10-12 20:24:27,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087915362] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:27,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:27,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 20:24:27,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847037426] [2024-10-12 20:24:27,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:27,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 20:24:27,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:27,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 20:24:27,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-12 20:24:27,017 INFO L87 Difference]: Start difference. First operand 13226 states and 20351 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:27,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:27,613 INFO L93 Difference]: Finished difference Result 16460 states and 25147 transitions. [2024-10-12 20:24:27,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-12 20:24:27,614 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-10-12 20:24:27,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:27,648 INFO L225 Difference]: With dead ends: 16460 [2024-10-12 20:24:27,648 INFO L226 Difference]: Without dead ends: 14908 [2024-10-12 20:24:27,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-10-12 20:24:27,660 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 1120 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1120 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:27,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1120 Valid, 903 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-12 20:24:27,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14908 states. [2024-10-12 20:24:27,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14908 to 13226. [2024-10-12 20:24:27,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13226 states, 13225 states have (on average 1.5386767485822306) internal successors, (20349), 13225 states have internal predecessors, (20349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:27,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13226 states to 13226 states and 20349 transitions. [2024-10-12 20:24:27,867 INFO L78 Accepts]: Start accepts. Automaton has 13226 states and 20349 transitions. Word has length 82 [2024-10-12 20:24:27,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:27,869 INFO L471 AbstractCegarLoop]: Abstraction has 13226 states and 20349 transitions. [2024-10-12 20:24:27,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:27,870 INFO L276 IsEmpty]: Start isEmpty. Operand 13226 states and 20349 transitions. [2024-10-12 20:24:27,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-12 20:24:27,874 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:27,874 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:24:27,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 20:24:27,875 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:27,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:27,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1081299907, now seen corresponding path program 1 times [2024-10-12 20:24:27,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:27,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323884409] [2024-10-12 20:24:27,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:27,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:27,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:28,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:28,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:28,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323884409] [2024-10-12 20:24:28,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323884409] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:28,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:28,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 20:24:28,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39976552] [2024-10-12 20:24:28,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:28,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 20:24:28,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:28,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 20:24:28,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 20:24:28,334 INFO L87 Difference]: Start difference. First operand 13226 states and 20349 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:29,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:29,137 INFO L93 Difference]: Finished difference Result 24710 states and 37699 transitions. [2024-10-12 20:24:29,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-12 20:24:29,138 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-10-12 20:24:29,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:29,173 INFO L225 Difference]: With dead ends: 24710 [2024-10-12 20:24:29,174 INFO L226 Difference]: Without dead ends: 20532 [2024-10-12 20:24:29,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-12 20:24:29,184 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 958 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:29,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [958 Valid, 1193 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 20:24:29,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20532 states. [2024-10-12 20:24:29,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20532 to 13530. [2024-10-12 20:24:29,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13530 states, 13529 states have (on average 1.5363293665459383) internal successors, (20785), 13529 states have internal predecessors, (20785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:29,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13530 states to 13530 states and 20785 transitions. [2024-10-12 20:24:29,457 INFO L78 Accepts]: Start accepts. Automaton has 13530 states and 20785 transitions. Word has length 82 [2024-10-12 20:24:29,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:29,457 INFO L471 AbstractCegarLoop]: Abstraction has 13530 states and 20785 transitions. [2024-10-12 20:24:29,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:29,458 INFO L276 IsEmpty]: Start isEmpty. Operand 13530 states and 20785 transitions. [2024-10-12 20:24:29,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-12 20:24:29,466 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:29,466 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:24:29,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-12 20:24:29,467 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:29,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:29,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1346868099, now seen corresponding path program 1 times [2024-10-12 20:24:29,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:29,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99893950] [2024-10-12 20:24:29,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:29,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:29,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:29,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:29,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:29,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99893950] [2024-10-12 20:24:29,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99893950] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:29,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:29,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 20:24:29,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979061442] [2024-10-12 20:24:29,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:29,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 20:24:29,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:29,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 20:24:29,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 20:24:29,912 INFO L87 Difference]: Start difference. First operand 13530 states and 20785 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:30,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:30,696 INFO L93 Difference]: Finished difference Result 30280 states and 46210 transitions. [2024-10-12 20:24:30,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-12 20:24:30,697 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-10-12 20:24:30,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:30,728 INFO L225 Difference]: With dead ends: 30280 [2024-10-12 20:24:30,729 INFO L226 Difference]: Without dead ends: 20958 [2024-10-12 20:24:30,750 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-12 20:24:30,751 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 888 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 888 SdHoareTripleChecker+Valid, 1180 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:30,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [888 Valid, 1180 Invalid, 999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-12 20:24:30,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20958 states. [2024-10-12 20:24:31,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20958 to 13834. [2024-10-12 20:24:31,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13834 states, 13833 states have (on average 1.5312658136340636) internal successors, (21182), 13833 states have internal predecessors, (21182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:31,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13834 states to 13834 states and 21182 transitions. [2024-10-12 20:24:31,127 INFO L78 Accepts]: Start accepts. Automaton has 13834 states and 21182 transitions. Word has length 82 [2024-10-12 20:24:31,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:31,128 INFO L471 AbstractCegarLoop]: Abstraction has 13834 states and 21182 transitions. [2024-10-12 20:24:31,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:31,128 INFO L276 IsEmpty]: Start isEmpty. Operand 13834 states and 21182 transitions. [2024-10-12 20:24:31,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-12 20:24:31,134 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:31,134 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:24:31,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 20:24:31,134 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:31,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:31,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1416458495, now seen corresponding path program 1 times [2024-10-12 20:24:31,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:31,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117851560] [2024-10-12 20:24:31,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:31,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:31,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:31,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:31,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:31,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117851560] [2024-10-12 20:24:31,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117851560] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:31,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:31,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:24:31,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163336819] [2024-10-12 20:24:31,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:31,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:24:31,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:31,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:24:31,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:24:31,232 INFO L87 Difference]: Start difference. First operand 13834 states and 21182 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) [2024-10-12 20:24:31,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:31,475 INFO L93 Difference]: Finished difference Result 38546 states and 59131 transitions. [2024-10-12 20:24:31,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:24:31,475 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 [2024-10-12 20:24:31,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:31,502 INFO L225 Difference]: With dead ends: 38546 [2024-10-12 20:24:31,503 INFO L226 Difference]: Without dead ends: 24774 [2024-10-12 20:24:31,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:24:31,523 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 1158 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:31,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1158 Valid, 286 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:24:31,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24774 states. [2024-10-12 20:24:31,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24774 to 24772. [2024-10-12 20:24:31,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24772 states, 24771 states have (on average 1.5282790359694804) internal successors, (37857), 24771 states have internal predecessors, (37857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:31,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24772 states to 24772 states and 37857 transitions. [2024-10-12 20:24:31,825 INFO L78 Accepts]: Start accepts. Automaton has 24772 states and 37857 transitions. Word has length 82 [2024-10-12 20:24:31,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:31,825 INFO L471 AbstractCegarLoop]: Abstraction has 24772 states and 37857 transitions. [2024-10-12 20:24:31,825 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) [2024-10-12 20:24:31,825 INFO L276 IsEmpty]: Start isEmpty. Operand 24772 states and 37857 transitions. [2024-10-12 20:24:31,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-12 20:24:31,834 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:31,835 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:24:31,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-12 20:24:31,835 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:31,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:31,836 INFO L85 PathProgramCache]: Analyzing trace with hash 335716386, now seen corresponding path program 1 times [2024-10-12 20:24:31,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:31,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261340081] [2024-10-12 20:24:31,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:31,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:31,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:31,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:31,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:31,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261340081] [2024-10-12 20:24:31,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261340081] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:31,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:31,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:24:31,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506994114] [2024-10-12 20:24:31,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:31,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:24:31,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:31,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:24:31,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:24:31,905 INFO L87 Difference]: Start difference. First operand 24772 states and 37857 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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) [2024-10-12 20:24:32,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:32,030 INFO L93 Difference]: Finished difference Result 40314 states and 61717 transitions. [2024-10-12 20:24:32,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:24:32,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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 [2024-10-12 20:24:32,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:32,073 INFO L225 Difference]: With dead ends: 40314 [2024-10-12 20:24:32,074 INFO L226 Difference]: Without dead ends: 29212 [2024-10-12 20:24:32,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:24:32,099 INFO L432 NwaCegarLoop]: 307 mSDtfsCounter, 174 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:32,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 566 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:24:32,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29212 states. [2024-10-12 20:24:32,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29212 to 28942. [2024-10-12 20:24:32,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28942 states, 28941 states have (on average 1.5115234442486438) internal successors, (43745), 28941 states have internal predecessors, (43745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:32,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28942 states to 28942 states and 43745 transitions. [2024-10-12 20:24:32,583 INFO L78 Accepts]: Start accepts. Automaton has 28942 states and 43745 transitions. Word has length 83 [2024-10-12 20:24:32,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:32,583 INFO L471 AbstractCegarLoop]: Abstraction has 28942 states and 43745 transitions. [2024-10-12 20:24:32,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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) [2024-10-12 20:24:32,584 INFO L276 IsEmpty]: Start isEmpty. Operand 28942 states and 43745 transitions. [2024-10-12 20:24:32,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-12 20:24:32,592 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:32,592 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] [2024-10-12 20:24:32,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-12 20:24:32,592 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:32,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:32,593 INFO L85 PathProgramCache]: Analyzing trace with hash 2115226634, now seen corresponding path program 1 times [2024-10-12 20:24:32,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:32,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284744182] [2024-10-12 20:24:32,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:32,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:32,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:32,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:32,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:32,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284744182] [2024-10-12 20:24:32,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284744182] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:32,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:32,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:24:32,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831250574] [2024-10-12 20:24:32,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:32,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 20:24:32,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:32,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 20:24:32,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 20:24:32,775 INFO L87 Difference]: Start difference. First operand 28942 states and 43745 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 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) [2024-10-12 20:24:33,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:33,299 INFO L93 Difference]: Finished difference Result 79450 states and 120131 transitions. [2024-10-12 20:24:33,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 20:24:33,300 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 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 [2024-10-12 20:24:33,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:33,368 INFO L225 Difference]: With dead ends: 79450 [2024-10-12 20:24:33,368 INFO L226 Difference]: Without dead ends: 52456 [2024-10-12 20:24:33,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 20:24:33,390 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 190 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:33,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 693 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:24:33,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52456 states. [2024-10-12 20:24:33,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52456 to 52118. [2024-10-12 20:24:33,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52118 states, 52117 states have (on average 1.497572768962143) internal successors, (78049), 52117 states have internal predecessors, (78049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:34,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52118 states to 52118 states and 78049 transitions. [2024-10-12 20:24:34,057 INFO L78 Accepts]: Start accepts. Automaton has 52118 states and 78049 transitions. Word has length 83 [2024-10-12 20:24:34,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:34,057 INFO L471 AbstractCegarLoop]: Abstraction has 52118 states and 78049 transitions. [2024-10-12 20:24:34,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 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) [2024-10-12 20:24:34,058 INFO L276 IsEmpty]: Start isEmpty. Operand 52118 states and 78049 transitions. [2024-10-12 20:24:34,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-12 20:24:34,067 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:34,067 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] [2024-10-12 20:24:34,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-12 20:24:34,067 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:34,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:34,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1854410781, now seen corresponding path program 1 times [2024-10-12 20:24:34,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:34,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252274238] [2024-10-12 20:24:34,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:34,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:34,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:34,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:34,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:34,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252274238] [2024-10-12 20:24:34,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252274238] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:34,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:34,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:24:34,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488178968] [2024-10-12 20:24:34,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:34,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:24:34,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:34,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:24:34,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:24:34,142 INFO L87 Difference]: Start difference. First operand 52118 states and 78049 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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) [2024-10-12 20:24:34,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:34,775 INFO L93 Difference]: Finished difference Result 119877 states and 179655 transitions. [2024-10-12 20:24:34,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:24:34,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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 [2024-10-12 20:24:34,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:35,105 INFO L225 Difference]: With dead ends: 119877 [2024-10-12 20:24:35,105 INFO L226 Difference]: Without dead ends: 73045 [2024-10-12 20:24:35,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:24:35,145 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 200 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:35,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 548 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:24:35,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73045 states. [2024-10-12 20:24:35,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73045 to 51760. [2024-10-12 20:24:35,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51760 states, 51759 states have (on average 1.4831816688885024) internal successors, (76768), 51759 states have internal predecessors, (76768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:35,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51760 states to 51760 states and 76768 transitions. [2024-10-12 20:24:35,940 INFO L78 Accepts]: Start accepts. Automaton has 51760 states and 76768 transitions. Word has length 83 [2024-10-12 20:24:35,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:35,940 INFO L471 AbstractCegarLoop]: Abstraction has 51760 states and 76768 transitions. [2024-10-12 20:24:35,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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) [2024-10-12 20:24:35,941 INFO L276 IsEmpty]: Start isEmpty. Operand 51760 states and 76768 transitions. [2024-10-12 20:24:35,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-12 20:24:35,949 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:35,949 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] [2024-10-12 20:24:35,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-12 20:24:35,949 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:35,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:35,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1896555195, now seen corresponding path program 1 times [2024-10-12 20:24:35,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:35,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726248540] [2024-10-12 20:24:35,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:35,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:35,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:36,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:36,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:36,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726248540] [2024-10-12 20:24:36,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726248540] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:36,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:36,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:24:36,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549715391] [2024-10-12 20:24:36,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:36,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:24:36,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:36,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:24:36,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:24:36,010 INFO L87 Difference]: Start difference. First operand 51760 states and 76768 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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) [2024-10-12 20:24:36,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:36,390 INFO L93 Difference]: Finished difference Result 68035 states and 100648 transitions. [2024-10-12 20:24:36,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:24:36,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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 [2024-10-12 20:24:36,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:36,475 INFO L225 Difference]: With dead ends: 68035 [2024-10-12 20:24:36,475 INFO L226 Difference]: Without dead ends: 53029 [2024-10-12 20:24:36,501 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:24:36,502 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 165 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:36,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 535 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:24:36,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53029 states. [2024-10-12 20:24:37,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53029 to 48483. [2024-10-12 20:24:37,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48483 states, 48482 states have (on average 1.4609133286580587) internal successors, (70828), 48482 states have internal predecessors, (70828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:37,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48483 states to 48483 states and 70828 transitions. [2024-10-12 20:24:37,323 INFO L78 Accepts]: Start accepts. Automaton has 48483 states and 70828 transitions. Word has length 83 [2024-10-12 20:24:37,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:37,323 INFO L471 AbstractCegarLoop]: Abstraction has 48483 states and 70828 transitions. [2024-10-12 20:24:37,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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) [2024-10-12 20:24:37,324 INFO L276 IsEmpty]: Start isEmpty. Operand 48483 states and 70828 transitions. [2024-10-12 20:24:37,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-12 20:24:37,331 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:37,332 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] [2024-10-12 20:24:37,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-12 20:24:37,332 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:37,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:37,332 INFO L85 PathProgramCache]: Analyzing trace with hash -408351133, now seen corresponding path program 1 times [2024-10-12 20:24:37,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:37,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164229442] [2024-10-12 20:24:37,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:37,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:37,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:37,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:37,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:37,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164229442] [2024-10-12 20:24:37,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164229442] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:37,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:37,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:24:37,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265843043] [2024-10-12 20:24:37,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:37,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:24:37,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:37,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:24:37,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:24:37,415 INFO L87 Difference]: Start difference. First operand 48483 states and 70828 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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) [2024-10-12 20:24:37,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:37,842 INFO L93 Difference]: Finished difference Result 91983 states and 134418 transitions. [2024-10-12 20:24:37,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:24:37,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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 [2024-10-12 20:24:37,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:37,910 INFO L225 Difference]: With dead ends: 91983 [2024-10-12 20:24:37,911 INFO L226 Difference]: Without dead ends: 57669 [2024-10-12 20:24:37,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:24:37,946 INFO L432 NwaCegarLoop]: 387 mSDtfsCounter, 179 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:37,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 642 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:24:37,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57669 states. [2024-10-12 20:24:38,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57669 to 57139. [2024-10-12 20:24:38,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57139 states, 57138 states have (on average 1.435261997269768) internal successors, (82008), 57138 states have internal predecessors, (82008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:38,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57139 states to 57139 states and 82008 transitions. [2024-10-12 20:24:38,645 INFO L78 Accepts]: Start accepts. Automaton has 57139 states and 82008 transitions. Word has length 83 [2024-10-12 20:24:38,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:38,645 INFO L471 AbstractCegarLoop]: Abstraction has 57139 states and 82008 transitions. [2024-10-12 20:24:38,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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) [2024-10-12 20:24:38,646 INFO L276 IsEmpty]: Start isEmpty. Operand 57139 states and 82008 transitions. [2024-10-12 20:24:38,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-12 20:24:38,653 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:38,653 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] [2024-10-12 20:24:38,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-12 20:24:38,653 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:38,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:38,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1902708714, now seen corresponding path program 1 times [2024-10-12 20:24:38,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:38,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271034307] [2024-10-12 20:24:38,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:38,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:38,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:38,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:38,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271034307] [2024-10-12 20:24:38,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271034307] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:38,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:38,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:24:38,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671368797] [2024-10-12 20:24:38,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:38,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:24:38,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:38,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:24:38,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:24:38,796 INFO L87 Difference]: Start difference. First operand 57139 states and 82008 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 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) [2024-10-12 20:24:39,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:39,397 INFO L93 Difference]: Finished difference Result 134557 states and 194630 transitions. [2024-10-12 20:24:39,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 20:24:39,399 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 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 [2024-10-12 20:24:39,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:39,542 INFO L225 Difference]: With dead ends: 134557 [2024-10-12 20:24:39,542 INFO L226 Difference]: Without dead ends: 116963 [2024-10-12 20:24:39,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-12 20:24:39,585 INFO L432 NwaCegarLoop]: 429 mSDtfsCounter, 1668 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1668 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:39,586 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1668 Valid, 1708 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:24:39,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116963 states. [2024-10-12 20:24:41,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116963 to 74577. [2024-10-12 20:24:41,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74577 states, 74576 states have (on average 1.4364138596867626) internal successors, (107122), 74576 states have internal predecessors, (107122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:41,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74577 states to 74577 states and 107122 transitions. [2024-10-12 20:24:41,251 INFO L78 Accepts]: Start accepts. Automaton has 74577 states and 107122 transitions. Word has length 84 [2024-10-12 20:24:41,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:41,251 INFO L471 AbstractCegarLoop]: Abstraction has 74577 states and 107122 transitions. [2024-10-12 20:24:41,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 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) [2024-10-12 20:24:41,251 INFO L276 IsEmpty]: Start isEmpty. Operand 74577 states and 107122 transitions. [2024-10-12 20:24:41,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-12 20:24:41,257 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:41,257 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] [2024-10-12 20:24:41,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-12 20:24:41,258 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:41,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:41,258 INFO L85 PathProgramCache]: Analyzing trace with hash 772680567, now seen corresponding path program 1 times [2024-10-12 20:24:41,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:41,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028826870] [2024-10-12 20:24:41,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:41,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:41,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:41,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:41,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028826870] [2024-10-12 20:24:41,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028826870] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:41,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:41,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:24:41,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909255389] [2024-10-12 20:24:41,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:41,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:24:41,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:41,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:24:41,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:24:41,321 INFO L87 Difference]: Start difference. First operand 74577 states and 107122 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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) [2024-10-12 20:24:41,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:41,668 INFO L93 Difference]: Finished difference Result 161661 states and 231413 transitions. [2024-10-12 20:24:41,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:24:41,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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 [2024-10-12 20:24:41,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:41,772 INFO L225 Difference]: With dead ends: 161661 [2024-10-12 20:24:41,772 INFO L226 Difference]: Without dead ends: 92847 [2024-10-12 20:24:41,825 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:24:41,826 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 190 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:41,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 530 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:24:41,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92847 states. [2024-10-12 20:24:43,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92847 to 92225. [2024-10-12 20:24:43,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92225 states, 92224 states have (on average 1.4044608778625953) internal successors, (129525), 92224 states have internal predecessors, (129525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:43,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92225 states to 92225 states and 129525 transitions. [2024-10-12 20:24:43,563 INFO L78 Accepts]: Start accepts. Automaton has 92225 states and 129525 transitions. Word has length 84 [2024-10-12 20:24:43,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:43,563 INFO L471 AbstractCegarLoop]: Abstraction has 92225 states and 129525 transitions. [2024-10-12 20:24:43,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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) [2024-10-12 20:24:43,564 INFO L276 IsEmpty]: Start isEmpty. Operand 92225 states and 129525 transitions. [2024-10-12 20:24:43,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-12 20:24:43,570 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:43,570 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] [2024-10-12 20:24:43,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-12 20:24:43,570 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:43,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:43,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1786627424, now seen corresponding path program 1 times [2024-10-12 20:24:43,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:43,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723848458] [2024-10-12 20:24:43,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:43,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:43,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:43,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:43,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:43,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723848458] [2024-10-12 20:24:43,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723848458] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:43,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:43,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:24:43,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823008265] [2024-10-12 20:24:43,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:43,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:24:43,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:43,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:24:43,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:24:43,705 INFO L87 Difference]: Start difference. First operand 92225 states and 129525 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 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) [2024-10-12 20:24:44,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:44,245 INFO L93 Difference]: Finished difference Result 167273 states and 236402 transitions. [2024-10-12 20:24:44,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 20:24:44,246 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 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 [2024-10-12 20:24:44,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:45,053 INFO L225 Difference]: With dead ends: 167273 [2024-10-12 20:24:45,053 INFO L226 Difference]: Without dead ends: 160251 [2024-10-12 20:24:45,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-12 20:24:45,098 INFO L432 NwaCegarLoop]: 405 mSDtfsCounter, 1835 mSDsluCounter, 1161 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1835 SdHoareTripleChecker+Valid, 1566 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:45,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1835 Valid, 1566 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:24:45,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160251 states. [2024-10-12 20:24:46,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160251 to 99137. [2024-10-12 20:24:46,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99137 states, 99136 states have (on average 1.4048579728857327) internal successors, (139272), 99136 states have internal predecessors, (139272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:46,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99137 states to 99137 states and 139272 transitions. [2024-10-12 20:24:46,857 INFO L78 Accepts]: Start accepts. Automaton has 99137 states and 139272 transitions. Word has length 84 [2024-10-12 20:24:46,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:46,857 INFO L471 AbstractCegarLoop]: Abstraction has 99137 states and 139272 transitions. [2024-10-12 20:24:46,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 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) [2024-10-12 20:24:46,858 INFO L276 IsEmpty]: Start isEmpty. Operand 99137 states and 139272 transitions. [2024-10-12 20:24:46,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-12 20:24:46,863 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:46,863 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] [2024-10-12 20:24:46,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-12 20:24:46,864 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:46,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:46,864 INFO L85 PathProgramCache]: Analyzing trace with hash -660085974, now seen corresponding path program 1 times [2024-10-12 20:24:46,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:46,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924843894] [2024-10-12 20:24:46,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:46,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:46,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:47,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:47,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:47,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924843894] [2024-10-12 20:24:47,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924843894] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:47,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:47,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:24:47,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611211730] [2024-10-12 20:24:47,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:47,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:24:47,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:47,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:24:47,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:24:47,027 INFO L87 Difference]: Start difference. First operand 99137 states and 139272 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 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) [2024-10-12 20:24:48,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:48,167 INFO L93 Difference]: Finished difference Result 182681 states and 258233 transitions. [2024-10-12 20:24:48,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 20:24:48,172 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 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 [2024-10-12 20:24:48,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:48,413 INFO L225 Difference]: With dead ends: 182681 [2024-10-12 20:24:48,413 INFO L226 Difference]: Without dead ends: 167019 [2024-10-12 20:24:48,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-12 20:24:48,442 INFO L432 NwaCegarLoop]: 420 mSDtfsCounter, 1626 mSDsluCounter, 1322 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1626 SdHoareTripleChecker+Valid, 1742 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:48,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1626 Valid, 1742 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:24:48,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167019 states. [2024-10-12 20:24:49,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167019 to 109025. [2024-10-12 20:24:49,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109025 states, 109024 states have (on average 1.4065068241855005) internal successors, (153343), 109024 states have internal predecessors, (153343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:50,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109025 states to 109025 states and 153343 transitions. [2024-10-12 20:24:50,099 INFO L78 Accepts]: Start accepts. Automaton has 109025 states and 153343 transitions. Word has length 84 [2024-10-12 20:24:50,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:50,100 INFO L471 AbstractCegarLoop]: Abstraction has 109025 states and 153343 transitions. [2024-10-12 20:24:50,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 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) [2024-10-12 20:24:50,100 INFO L276 IsEmpty]: Start isEmpty. Operand 109025 states and 153343 transitions. [2024-10-12 20:24:50,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-12 20:24:50,106 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:50,106 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] [2024-10-12 20:24:50,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-12 20:24:50,107 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:50,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:50,107 INFO L85 PathProgramCache]: Analyzing trace with hash -141022821, now seen corresponding path program 1 times [2024-10-12 20:24:50,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:50,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571495755] [2024-10-12 20:24:50,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:50,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:50,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:50,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:50,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:50,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571495755] [2024-10-12 20:24:50,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571495755] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:50,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:50,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:24:50,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512589408] [2024-10-12 20:24:50,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:50,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:24:50,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:50,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:24:50,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:24:50,249 INFO L87 Difference]: Start difference. First operand 109025 states and 153343 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 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) [2024-10-12 20:24:51,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:51,580 INFO L93 Difference]: Finished difference Result 220157 states and 311312 transitions. [2024-10-12 20:24:51,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 20:24:51,581 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 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 [2024-10-12 20:24:51,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:51,860 INFO L225 Difference]: With dead ends: 220157 [2024-10-12 20:24:51,860 INFO L226 Difference]: Without dead ends: 190623 [2024-10-12 20:24:51,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-12 20:24:51,941 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 1662 mSDsluCounter, 1455 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1662 SdHoareTripleChecker+Valid, 1898 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:51,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1662 Valid, 1898 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 20:24:52,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190623 states. [2024-10-12 20:24:54,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190623 to 126167. [2024-10-12 20:24:54,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126167 states, 126166 states have (on average 1.4077802260513925) internal successors, (177614), 126166 states have internal predecessors, (177614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:54,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126167 states to 126167 states and 177614 transitions. [2024-10-12 20:24:54,533 INFO L78 Accepts]: Start accepts. Automaton has 126167 states and 177614 transitions. Word has length 84 [2024-10-12 20:24:54,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:54,534 INFO L471 AbstractCegarLoop]: Abstraction has 126167 states and 177614 transitions. [2024-10-12 20:24:54,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 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) [2024-10-12 20:24:54,534 INFO L276 IsEmpty]: Start isEmpty. Operand 126167 states and 177614 transitions. [2024-10-12 20:24:54,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-12 20:24:54,540 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:54,540 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] [2024-10-12 20:24:54,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-12 20:24:54,540 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:54,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:54,541 INFO L85 PathProgramCache]: Analyzing trace with hash -573519243, now seen corresponding path program 1 times [2024-10-12 20:24:54,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:54,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117248534] [2024-10-12 20:24:54,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:54,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:54,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:54,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:54,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:54,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117248534] [2024-10-12 20:24:54,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117248534] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:54,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:54,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:24:54,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940617951] [2024-10-12 20:24:54,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:54,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:24:54,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:54,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:24:54,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:24:54,683 INFO L87 Difference]: Start difference. First operand 126167 states and 177614 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 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) [2024-10-12 20:24:55,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:55,335 INFO L93 Difference]: Finished difference Result 253085 states and 357547 transitions. [2024-10-12 20:24:55,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 20:24:55,336 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 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 [2024-10-12 20:24:55,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:56,364 INFO L225 Difference]: With dead ends: 253085 [2024-10-12 20:24:56,364 INFO L226 Difference]: Without dead ends: 219823 [2024-10-12 20:24:56,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-12 20:24:56,433 INFO L432 NwaCegarLoop]: 450 mSDtfsCounter, 1671 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1671 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:56,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1671 Valid, 1665 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:24:56,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219823 states. [2024-10-12 20:24:58,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219823 to 143295. [2024-10-12 20:24:58,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143295 states, 143294 states have (on average 1.4082445880497438) internal successors, (201793), 143294 states have internal predecessors, (201793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:59,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143295 states to 143295 states and 201793 transitions. [2024-10-12 20:24:59,592 INFO L78 Accepts]: Start accepts. Automaton has 143295 states and 201793 transitions. Word has length 84 [2024-10-12 20:24:59,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:59,592 INFO L471 AbstractCegarLoop]: Abstraction has 143295 states and 201793 transitions. [2024-10-12 20:24:59,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 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) [2024-10-12 20:24:59,592 INFO L276 IsEmpty]: Start isEmpty. Operand 143295 states and 201793 transitions. [2024-10-12 20:24:59,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-12 20:24:59,619 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:59,619 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] [2024-10-12 20:24:59,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-12 20:24:59,620 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:59,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:59,620 INFO L85 PathProgramCache]: Analyzing trace with hash -202340397, now seen corresponding path program 1 times [2024-10-12 20:24:59,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:59,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99061071] [2024-10-12 20:24:59,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:59,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:59,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:59,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:59,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:59,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99061071] [2024-10-12 20:24:59,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99061071] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:59,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:59,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:24:59,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692366799] [2024-10-12 20:24:59,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:59,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:24:59,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:59,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:24:59,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:24:59,894 INFO L87 Difference]: Start difference. First operand 143295 states and 201793 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:25:01,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:25:01,433 INFO L93 Difference]: Finished difference Result 481087 states and 674505 transitions. [2024-10-12 20:25:01,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 20:25:01,434 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2024-10-12 20:25:01,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:25:03,092 INFO L225 Difference]: With dead ends: 481087 [2024-10-12 20:25:03,092 INFO L226 Difference]: Without dead ends: 412641 [2024-10-12 20:25:03,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:25:03,202 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 1962 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1962 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 20:25:03,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1962 Valid, 553 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 20:25:03,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412641 states. [2024-10-12 20:25:06,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412641 to 143631. [2024-10-12 20:25:06,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143631 states, 143630 states have (on average 1.4079161735013577) internal successors, (202219), 143630 states have internal predecessors, (202219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:25:07,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143631 states to 143631 states and 202219 transitions. [2024-10-12 20:25:07,390 INFO L78 Accepts]: Start accepts. Automaton has 143631 states and 202219 transitions. Word has length 89 [2024-10-12 20:25:07,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:25:07,390 INFO L471 AbstractCegarLoop]: Abstraction has 143631 states and 202219 transitions. [2024-10-12 20:25:07,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:25:07,390 INFO L276 IsEmpty]: Start isEmpty. Operand 143631 states and 202219 transitions. [2024-10-12 20:25:07,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-12 20:25:07,403 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:25:07,403 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] [2024-10-12 20:25:07,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-12 20:25:07,404 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:25:07,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:25:07,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1198793894, now seen corresponding path program 1 times [2024-10-12 20:25:07,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:25:07,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085657898] [2024-10-12 20:25:07,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:25:07,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:25:07,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:25:07,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:25:07,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:25:07,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085657898] [2024-10-12 20:25:07,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085657898] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:25:07,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:25:07,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:25:07,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109526878] [2024-10-12 20:25:07,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:25:07,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:25:07,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:25:07,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:25:07,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:25:07,560 INFO L87 Difference]: Start difference. First operand 143631 states and 202219 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:25:08,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:25:08,960 INFO L93 Difference]: Finished difference Result 401321 states and 560891 transitions. [2024-10-12 20:25:08,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 20:25:08,961 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2024-10-12 20:25:08,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:25:09,549 INFO L225 Difference]: With dead ends: 401321 [2024-10-12 20:25:09,549 INFO L226 Difference]: Without dead ends: 353227 [2024-10-12 20:25:10,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:25:10,481 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 1720 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1720 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 20:25:10,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1720 Valid, 560 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 20:25:10,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353227 states.