./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.5.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 eb34721bf39b8c345e8997284756581f81ddbf5d57990eeac4742dbd2546fd8d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 03:49:07,911 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 03:49:07,965 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 03:49:07,969 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 03:49:07,970 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 03:49:08,009 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 03:49:08,010 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 03:49:08,011 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 03:49:08,012 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 03:49:08,013 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 03:49:08,014 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 03:49:08,014 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 03:49:08,015 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 03:49:08,015 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 03:49:08,015 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 03:49:08,016 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 03:49:08,016 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 03:49:08,016 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 03:49:08,016 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 03:49:08,017 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 03:49:08,017 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 03:49:08,020 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 03:49:08,021 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 03:49:08,021 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 03:49:08,021 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 03:49:08,022 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 03:49:08,022 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 03:49:08,022 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 03:49:08,023 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 03:49:08,023 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 03:49:08,023 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 03:49:08,024 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 03:49:08,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:49:08,024 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 03:49:08,025 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 03:49:08,025 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 03:49:08,025 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 03:49:08,025 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 03:49:08,026 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 03:49:08,026 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 03:49:08,026 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 03:49:08,026 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 03:49:08,027 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb34721bf39b8c345e8997284756581f81ddbf5d57990eeac4742dbd2546fd8d [2024-10-11 03:49:08,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 03:49:08,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 03:49:08,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 03:49:08,302 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 03:49:08,302 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 03:49:08,304 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-10-11 03:49:09,823 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 03:49:10,021 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 03:49:10,022 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-10-11 03:49:10,034 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/1e80e89aa/d74e2b8e7bae40aea98ab25617af629e/FLAGbeed94359 [2024-10-11 03:49:10,046 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/1e80e89aa/d74e2b8e7bae40aea98ab25617af629e [2024-10-11 03:49:10,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 03:49:10,049 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 03:49:10,050 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 03:49:10,051 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 03:49:10,059 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 03:49:10,060 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:49:10" (1/1) ... [2024-10-11 03:49:10,062 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@171ce02e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:49:10, skipping insertion in model container [2024-10-11 03:49:10,063 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:49:10" (1/1) ... [2024-10-11 03:49:10,108 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 03:49:10,402 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.5.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[7979,7992] [2024-10-11 03:49:10,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:49:10,489 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 03:49:10,557 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.5.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[7979,7992] [2024-10-11 03:49:10,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:49:10,622 INFO L204 MainTranslator]: Completed translation [2024-10-11 03:49:10,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:49:10 WrapperNode [2024-10-11 03:49:10,623 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 03:49:10,624 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 03:49:10,624 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 03:49:10,624 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 03:49:10,630 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:49:10" (1/1) ... [2024-10-11 03:49:10,640 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:49:10" (1/1) ... [2024-10-11 03:49:10,678 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 686 [2024-10-11 03:49:10,679 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 03:49:10,680 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 03:49:10,680 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 03:49:10,680 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 03:49:10,692 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:49:10" (1/1) ... [2024-10-11 03:49:10,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:49:10" (1/1) ... [2024-10-11 03:49:10,697 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:49:10" (1/1) ... [2024-10-11 03:49:10,716 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]. [2024-10-11 03:49:10,717 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:49:10" (1/1) ... [2024-10-11 03:49:10,717 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:49:10" (1/1) ... [2024-10-11 03:49:10,731 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:49:10" (1/1) ... [2024-10-11 03:49:10,736 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:49:10" (1/1) ... [2024-10-11 03:49:10,739 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:49:10" (1/1) ... [2024-10-11 03:49:10,741 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:49:10" (1/1) ... [2024-10-11 03:49:10,746 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 03:49:10,748 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 03:49:10,748 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 03:49:10,748 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 03:49:10,749 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:49:10" (1/1) ... [2024-10-11 03:49:10,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:49:10,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:49:10,809 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 03:49:10,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 03:49:10,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 03:49:10,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 03:49:10,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 03:49:10,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 03:49:10,974 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 03:49:10,976 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 03:49:11,593 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2024-10-11 03:49:11,593 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 03:49:11,634 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 03:49:11,636 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 03:49:11,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:49:11 BoogieIcfgContainer [2024-10-11 03:49:11,637 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 03:49:11,639 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 03:49:11,639 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 03:49:11,643 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 03:49:11,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:49:10" (1/3) ... [2024-10-11 03:49:11,645 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4536ed55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:49:11, skipping insertion in model container [2024-10-11 03:49:11,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:49:10" (2/3) ... [2024-10-11 03:49:11,645 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4536ed55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:49:11, skipping insertion in model container [2024-10-11 03:49:11,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:49:11" (3/3) ... [2024-10-11 03:49:11,648 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-10-11 03:49:11,668 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 03:49:11,668 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 03:49:11,737 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 03:49:11,744 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;@13a04d8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 03:49:11,744 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 03:49:11,751 INFO L276 IsEmpty]: Start isEmpty. Operand has 148 states, 146 states have (on average 1.7671232876712328) internal successors, (258), 147 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:11,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-10-11 03:49:11,763 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:11,763 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] [2024-10-11 03:49:11,764 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:11,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:11,770 INFO L85 PathProgramCache]: Analyzing trace with hash -819391528, now seen corresponding path program 1 times [2024-10-11 03:49:11,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:11,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539269260] [2024-10-11 03:49:11,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:11,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:12,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:12,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:12,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:12,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539269260] [2024-10-11 03:49:12,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539269260] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:12,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:12,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:49:12,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522588317] [2024-10-11 03:49:12,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:12,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:49:12,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:12,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:49:12,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:49:12,522 INFO L87 Difference]: Start difference. First operand has 148 states, 146 states have (on average 1.7671232876712328) internal successors, (258), 147 states have internal predecessors, (258), 0 states have call successors, (0), 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 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:12,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:12,944 INFO L93 Difference]: Finished difference Result 833 states and 1343 transitions. [2024-10-11 03:49:12,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 03:49:12,947 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2024-10-11 03:49:12,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:12,971 INFO L225 Difference]: With dead ends: 833 [2024-10-11 03:49:12,971 INFO L226 Difference]: Without dead ends: 750 [2024-10-11 03:49:12,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-10-11 03:49:12,982 INFO L432 NwaCegarLoop]: 417 mSDtfsCounter, 1628 mSDsluCounter, 1415 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1628 SdHoareTripleChecker+Valid, 1832 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:12,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1628 Valid, 1832 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:49:13,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2024-10-11 03:49:13,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 226. [2024-10-11 03:49:13,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 225 states have (on average 1.4533333333333334) internal successors, (327), 225 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:13,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 327 transitions. [2024-10-11 03:49:13,065 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 327 transitions. Word has length 75 [2024-10-11 03:49:13,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:13,066 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 327 transitions. [2024-10-11 03:49:13,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:13,067 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 327 transitions. [2024-10-11 03:49:13,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-11 03:49:13,071 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:13,071 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:49:13,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 03:49:13,072 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:13,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:13,072 INFO L85 PathProgramCache]: Analyzing trace with hash 57964953, now seen corresponding path program 1 times [2024-10-11 03:49:13,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:13,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091292472] [2024-10-11 03:49:13,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:13,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:13,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:13,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:13,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:13,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091292472] [2024-10-11 03:49:13,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091292472] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:13,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:13,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:49:13,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210925787] [2024-10-11 03:49:13,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:13,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:49:13,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:13,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:49:13,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:49:13,395 INFO L87 Difference]: Start difference. First operand 226 states and 327 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:13,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:13,577 INFO L93 Difference]: Finished difference Result 921 states and 1418 transitions. [2024-10-11 03:49:13,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:49:13,578 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-10-11 03:49:13,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:13,581 INFO L225 Difference]: With dead ends: 921 [2024-10-11 03:49:13,581 INFO L226 Difference]: Without dead ends: 801 [2024-10-11 03:49:13,582 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 [2024-10-11 03:49:13,583 INFO L432 NwaCegarLoop]: 384 mSDtfsCounter, 1023 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 1238 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:13,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1023 Valid, 1238 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:49:13,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2024-10-11 03:49:13,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 355. [2024-10-11 03:49:13,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 354 states have (on average 1.5) internal successors, (531), 354 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:13,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 531 transitions. [2024-10-11 03:49:13,600 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 531 transitions. Word has length 77 [2024-10-11 03:49:13,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:13,601 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 531 transitions. [2024-10-11 03:49:13,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:13,601 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 531 transitions. [2024-10-11 03:49:13,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-11 03:49:13,603 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:13,603 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:49:13,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 03:49:13,603 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:13,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:13,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1841121089, now seen corresponding path program 1 times [2024-10-11 03:49:13,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:13,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634569387] [2024-10-11 03:49:13,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:13,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:13,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:13,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:13,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:13,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634569387] [2024-10-11 03:49:13,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634569387] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:13,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:13,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:49:13,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467228368] [2024-10-11 03:49:13,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:13,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:49:13,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:13,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:49:13,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:49:13,817 INFO L87 Difference]: Start difference. First operand 355 states and 531 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:13,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:13,963 INFO L93 Difference]: Finished difference Result 1045 states and 1614 transitions. [2024-10-11 03:49:13,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:49:13,964 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-10-11 03:49:13,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:13,968 INFO L225 Difference]: With dead ends: 1045 [2024-10-11 03:49:13,968 INFO L226 Difference]: Without dead ends: 925 [2024-10-11 03:49:13,969 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 [2024-10-11 03:49:13,970 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 1287 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:13,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1287 Valid, 1048 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:49:13,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2024-10-11 03:49:13,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 538. [2024-10-11 03:49:13,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.5270018621973929) internal successors, (820), 537 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:13,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 820 transitions. [2024-10-11 03:49:13,987 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 820 transitions. Word has length 77 [2024-10-11 03:49:13,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:13,987 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 820 transitions. [2024-10-11 03:49:13,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:13,988 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 820 transitions. [2024-10-11 03:49:13,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-11 03:49:13,989 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:13,989 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:49:13,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 03:49:13,989 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:13,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:13,990 INFO L85 PathProgramCache]: Analyzing trace with hash 836086966, now seen corresponding path program 1 times [2024-10-11 03:49:13,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:13,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538940937] [2024-10-11 03:49:13,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:13,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:14,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:14,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:14,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:14,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538940937] [2024-10-11 03:49:14,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538940937] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:14,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:14,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:49:14,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935044721] [2024-10-11 03:49:14,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:14,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:49:14,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:14,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:49:14,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:49:14,325 INFO L87 Difference]: Start difference. First operand 538 states and 820 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:14,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:14,510 INFO L93 Difference]: Finished difference Result 955 states and 1477 transitions. [2024-10-11 03:49:14,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:49:14,510 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-10-11 03:49:14,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:14,513 INFO L225 Difference]: With dead ends: 955 [2024-10-11 03:49:14,513 INFO L226 Difference]: Without dead ends: 540 [2024-10-11 03:49:14,516 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-10-11 03:49:14,520 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 484 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:14,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 679 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:49:14,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-10-11 03:49:14,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 538. [2024-10-11 03:49:14,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.5195530726256983) internal successors, (816), 537 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:14,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 816 transitions. [2024-10-11 03:49:14,534 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 816 transitions. Word has length 77 [2024-10-11 03:49:14,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:14,535 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 816 transitions. [2024-10-11 03:49:14,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:14,535 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 816 transitions. [2024-10-11 03:49:14,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-11 03:49:14,540 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:14,540 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] [2024-10-11 03:49:14,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 03:49:14,541 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:14,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:14,541 INFO L85 PathProgramCache]: Analyzing trace with hash 629188471, now seen corresponding path program 1 times [2024-10-11 03:49:14,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:14,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369399478] [2024-10-11 03:49:14,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:14,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:14,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:14,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:14,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:14,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369399478] [2024-10-11 03:49:14,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369399478] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:14,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:14,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:49:14,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027356911] [2024-10-11 03:49:14,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:14,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:49:14,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:14,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:49:14,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:49:14,607 INFO L87 Difference]: Start difference. First operand 538 states and 816 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:14,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:14,630 INFO L93 Difference]: Finished difference Result 1323 states and 2045 transitions. [2024-10-11 03:49:14,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:49:14,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-10-11 03:49:14,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:14,634 INFO L225 Difference]: With dead ends: 1323 [2024-10-11 03:49:14,634 INFO L226 Difference]: Without dead ends: 908 [2024-10-11 03:49:14,635 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 [2024-10-11 03:49:14,635 INFO L432 NwaCegarLoop]: 279 mSDtfsCounter, 83 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:14,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 468 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:49:14,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2024-10-11 03:49:14,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 906. [2024-10-11 03:49:14,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 906 states, 905 states have (on average 1.5226519337016575) internal successors, (1378), 905 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:14,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1378 transitions. [2024-10-11 03:49:14,653 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1378 transitions. Word has length 77 [2024-10-11 03:49:14,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:14,653 INFO L471 AbstractCegarLoop]: Abstraction has 906 states and 1378 transitions. [2024-10-11 03:49:14,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:14,654 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1378 transitions. [2024-10-11 03:49:14,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-11 03:49:14,655 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:14,655 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:49:14,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 03:49:14,655 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:14,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:14,656 INFO L85 PathProgramCache]: Analyzing trace with hash 644914821, now seen corresponding path program 1 times [2024-10-11 03:49:14,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:14,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015561202] [2024-10-11 03:49:14,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:14,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:14,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:14,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:14,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:14,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015561202] [2024-10-11 03:49:14,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015561202] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:14,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:14,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:49:14,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357506192] [2024-10-11 03:49:14,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:14,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:49:14,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:14,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:49:14,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:49:14,814 INFO L87 Difference]: Start difference. First operand 906 states and 1378 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:14,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:14,993 INFO L93 Difference]: Finished difference Result 2057 states and 3160 transitions. [2024-10-11 03:49:14,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:49:14,994 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-10-11 03:49:14,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:15,002 INFO L225 Difference]: With dead ends: 2057 [2024-10-11 03:49:15,002 INFO L226 Difference]: Without dead ends: 1832 [2024-10-11 03:49:15,003 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 [2024-10-11 03:49:15,004 INFO L432 NwaCegarLoop]: 368 mSDtfsCounter, 1032 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 1385 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:15,005 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1032 Valid, 1385 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:49:15,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1832 states. [2024-10-11 03:49:15,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1832 to 1130. [2024-10-11 03:49:15,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1130 states, 1129 states have (on average 1.5279007971656333) internal successors, (1725), 1129 states have internal predecessors, (1725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:15,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 1725 transitions. [2024-10-11 03:49:15,028 INFO L78 Accepts]: Start accepts. Automaton has 1130 states and 1725 transitions. Word has length 77 [2024-10-11 03:49:15,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:15,028 INFO L471 AbstractCegarLoop]: Abstraction has 1130 states and 1725 transitions. [2024-10-11 03:49:15,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:15,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1130 states and 1725 transitions. [2024-10-11 03:49:15,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-11 03:49:15,030 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:15,030 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:49:15,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 03:49:15,030 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:15,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:15,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1731630291, now seen corresponding path program 1 times [2024-10-11 03:49:15,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:15,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236904144] [2024-10-11 03:49:15,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:15,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:15,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:15,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:15,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:15,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236904144] [2024-10-11 03:49:15,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236904144] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:15,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:15,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:49:15,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222452106] [2024-10-11 03:49:15,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:15,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:49:15,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:15,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:49:15,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:49:15,191 INFO L87 Difference]: Start difference. First operand 1130 states and 1725 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:15,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:15,373 INFO L93 Difference]: Finished difference Result 2291 states and 3523 transitions. [2024-10-11 03:49:15,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:49:15,374 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-10-11 03:49:15,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:15,382 INFO L225 Difference]: With dead ends: 2291 [2024-10-11 03:49:15,383 INFO L226 Difference]: Without dead ends: 2066 [2024-10-11 03:49:15,384 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 [2024-10-11 03:49:15,385 INFO L432 NwaCegarLoop]: 393 mSDtfsCounter, 1074 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1074 SdHoareTripleChecker+Valid, 1687 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:15,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1074 Valid, 1687 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:49:15,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2066 states. [2024-10-11 03:49:15,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2066 to 1369. [2024-10-11 03:49:15,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1369 states, 1368 states have (on average 1.5321637426900585) internal successors, (2096), 1368 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:15,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1369 states to 1369 states and 2096 transitions. [2024-10-11 03:49:15,426 INFO L78 Accepts]: Start accepts. Automaton has 1369 states and 2096 transitions. Word has length 77 [2024-10-11 03:49:15,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:15,427 INFO L471 AbstractCegarLoop]: Abstraction has 1369 states and 2096 transitions. [2024-10-11 03:49:15,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:15,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1369 states and 2096 transitions. [2024-10-11 03:49:15,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-11 03:49:15,428 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:15,428 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:49:15,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 03:49:15,429 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:15,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:15,429 INFO L85 PathProgramCache]: Analyzing trace with hash 294962861, now seen corresponding path program 1 times [2024-10-11 03:49:15,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:15,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220021225] [2024-10-11 03:49:15,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:15,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:15,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:15,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:15,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220021225] [2024-10-11 03:49:15,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220021225] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:15,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:15,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:49:15,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603944784] [2024-10-11 03:49:15,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:15,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:49:15,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:15,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:49:15,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:49:15,640 INFO L87 Difference]: Start difference. First operand 1369 states and 2096 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:15,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:15,802 INFO L93 Difference]: Finished difference Result 2530 states and 3894 transitions. [2024-10-11 03:49:15,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:49:15,803 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-10-11 03:49:15,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:15,813 INFO L225 Difference]: With dead ends: 2530 [2024-10-11 03:49:15,813 INFO L226 Difference]: Without dead ends: 2305 [2024-10-11 03:49:15,814 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 [2024-10-11 03:49:15,815 INFO L432 NwaCegarLoop]: 315 mSDtfsCounter, 1084 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1084 SdHoareTripleChecker+Valid, 1241 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:15,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1084 Valid, 1241 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:49:15,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2305 states. [2024-10-11 03:49:15,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2305 to 1608. [2024-10-11 03:49:15,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 1607 states have (on average 1.5351586807716242) internal successors, (2467), 1607 states have internal predecessors, (2467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:15,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2467 transitions. [2024-10-11 03:49:15,864 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2467 transitions. Word has length 77 [2024-10-11 03:49:15,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:15,864 INFO L471 AbstractCegarLoop]: Abstraction has 1608 states and 2467 transitions. [2024-10-11 03:49:15,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:15,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2467 transitions. [2024-10-11 03:49:15,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-11 03:49:15,865 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:15,866 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] [2024-10-11 03:49:15,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 03:49:15,866 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:15,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:15,867 INFO L85 PathProgramCache]: Analyzing trace with hash 146982893, now seen corresponding path program 1 times [2024-10-11 03:49:15,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:15,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359341250] [2024-10-11 03:49:15,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:15,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:15,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:15,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:15,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359341250] [2024-10-11 03:49:15,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359341250] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:15,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:15,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:49:15,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437078477] [2024-10-11 03:49:15,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:15,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:49:15,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:15,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:49:15,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:49:15,992 INFO L87 Difference]: Start difference. First operand 1608 states and 2467 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 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) [2024-10-11 03:49:16,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:16,121 INFO L93 Difference]: Finished difference Result 3179 states and 4896 transitions. [2024-10-11 03:49:16,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:49:16,125 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 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 [2024-10-11 03:49:16,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:16,130 INFO L225 Difference]: With dead ends: 3179 [2024-10-11 03:49:16,130 INFO L226 Difference]: Without dead ends: 1608 [2024-10-11 03:49:16,132 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 [2024-10-11 03:49:16,133 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 554 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:16,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 108 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:49:16,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2024-10-11 03:49:16,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1608. [2024-10-11 03:49:16,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 1607 states have (on average 1.5183571873055384) internal successors, (2440), 1607 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:16,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2440 transitions. [2024-10-11 03:49:16,166 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2440 transitions. Word has length 78 [2024-10-11 03:49:16,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:16,166 INFO L471 AbstractCegarLoop]: Abstraction has 1608 states and 2440 transitions. [2024-10-11 03:49:16,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 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) [2024-10-11 03:49:16,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2440 transitions. [2024-10-11 03:49:16,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-11 03:49:16,168 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:16,168 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] [2024-10-11 03:49:16,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 03:49:16,168 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:16,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:16,169 INFO L85 PathProgramCache]: Analyzing trace with hash 645222420, now seen corresponding path program 1 times [2024-10-11 03:49:16,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:16,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940881528] [2024-10-11 03:49:16,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:16,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:16,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:16,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:16,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940881528] [2024-10-11 03:49:16,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940881528] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:16,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:16,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:49:16,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706267544] [2024-10-11 03:49:16,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:16,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:49:16,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:16,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:49:16,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:49:16,302 INFO L87 Difference]: Start difference. First operand 1608 states and 2440 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 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) [2024-10-11 03:49:16,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:16,440 INFO L93 Difference]: Finished difference Result 3163 states and 4823 transitions. [2024-10-11 03:49:16,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:49:16,441 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 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 [2024-10-11 03:49:16,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:16,447 INFO L225 Difference]: With dead ends: 3163 [2024-10-11 03:49:16,447 INFO L226 Difference]: Without dead ends: 1608 [2024-10-11 03:49:16,449 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 [2024-10-11 03:49:16,450 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 503 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:16,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 140 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:49:16,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2024-10-11 03:49:16,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1608. [2024-10-11 03:49:16,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 1607 states have (on average 1.5015556938394523) internal successors, (2413), 1607 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:16,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2413 transitions. [2024-10-11 03:49:16,486 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2413 transitions. Word has length 79 [2024-10-11 03:49:16,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:16,487 INFO L471 AbstractCegarLoop]: Abstraction has 1608 states and 2413 transitions. [2024-10-11 03:49:16,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 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) [2024-10-11 03:49:16,487 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2413 transitions. [2024-10-11 03:49:16,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-11 03:49:16,489 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:16,489 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] [2024-10-11 03:49:16,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 03:49:16,490 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:16,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:16,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1184482509, now seen corresponding path program 1 times [2024-10-11 03:49:16,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:16,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6966410] [2024-10-11 03:49:16,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:16,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:16,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:16,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:16,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:16,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6966410] [2024-10-11 03:49:16,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6966410] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:16,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:16,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:49:16,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038307471] [2024-10-11 03:49:16,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:16,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:49:16,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:16,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:49:16,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:49:16,594 INFO L87 Difference]: Start difference. First operand 1608 states and 2413 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) [2024-10-11 03:49:16,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:16,722 INFO L93 Difference]: Finished difference Result 3171 states and 4779 transitions. [2024-10-11 03:49:16,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:49:16,723 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 [2024-10-11 03:49:16,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:16,728 INFO L225 Difference]: With dead ends: 3171 [2024-10-11 03:49:16,728 INFO L226 Difference]: Without dead ends: 1608 [2024-10-11 03:49:16,730 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 [2024-10-11 03:49:16,731 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 519 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:16,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 124 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:49:16,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2024-10-11 03:49:16,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1608. [2024-10-11 03:49:16,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 1607 states have (on average 1.4847542003733665) internal successors, (2386), 1607 states have internal predecessors, (2386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:16,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2386 transitions. [2024-10-11 03:49:16,762 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2386 transitions. Word has length 80 [2024-10-11 03:49:16,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:16,762 INFO L471 AbstractCegarLoop]: Abstraction has 1608 states and 2386 transitions. [2024-10-11 03:49:16,762 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) [2024-10-11 03:49:16,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2386 transitions. [2024-10-11 03:49:16,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-11 03:49:16,763 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:16,763 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] [2024-10-11 03:49:16,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 03:49:16,764 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:16,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:16,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1700139828, now seen corresponding path program 1 times [2024-10-11 03:49:16,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:16,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822086168] [2024-10-11 03:49:16,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:16,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:16,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:16,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:16,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:16,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822086168] [2024-10-11 03:49:16,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822086168] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:16,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:16,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:49:16,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114956596] [2024-10-11 03:49:16,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:16,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:49:16,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:16,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:49:16,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:49:16,878 INFO L87 Difference]: Start difference. First operand 1608 states and 2386 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 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) [2024-10-11 03:49:16,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:16,999 INFO L93 Difference]: Finished difference Result 3167 states and 4721 transitions. [2024-10-11 03:49:17,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:49:17,001 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 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 [2024-10-11 03:49:17,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:17,006 INFO L225 Difference]: With dead ends: 3167 [2024-10-11 03:49:17,006 INFO L226 Difference]: Without dead ends: 1608 [2024-10-11 03:49:17,008 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 [2024-10-11 03:49:17,009 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 501 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:17,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 132 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:49:17,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2024-10-11 03:49:17,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1608. [2024-10-11 03:49:17,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 1607 states have (on average 1.4679527069072806) internal successors, (2359), 1607 states have internal predecessors, (2359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:17,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2359 transitions. [2024-10-11 03:49:17,073 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2359 transitions. Word has length 81 [2024-10-11 03:49:17,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:17,073 INFO L471 AbstractCegarLoop]: Abstraction has 1608 states and 2359 transitions. [2024-10-11 03:49:17,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 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) [2024-10-11 03:49:17,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2359 transitions. [2024-10-11 03:49:17,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-11 03:49:17,075 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:17,075 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] [2024-10-11 03:49:17,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 03:49:17,076 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:17,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:17,077 INFO L85 PathProgramCache]: Analyzing trace with hash -940668639, now seen corresponding path program 1 times [2024-10-11 03:49:17,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:17,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010374281] [2024-10-11 03:49:17,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:17,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:17,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:17,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:17,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:17,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010374281] [2024-10-11 03:49:17,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010374281] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:17,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:17,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:49:17,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406202871] [2024-10-11 03:49:17,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:17,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:49:17,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:17,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:49:17,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:49:17,190 INFO L87 Difference]: Start difference. First operand 1608 states and 2359 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) [2024-10-11 03:49:17,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:17,312 INFO L93 Difference]: Finished difference Result 3175 states and 4676 transitions. [2024-10-11 03:49:17,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:49:17,313 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 [2024-10-11 03:49:17,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:17,318 INFO L225 Difference]: With dead ends: 3175 [2024-10-11 03:49:17,318 INFO L226 Difference]: Without dead ends: 1608 [2024-10-11 03:49:17,320 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 [2024-10-11 03:49:17,320 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 518 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:17,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 116 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:49:17,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2024-10-11 03:49:17,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1608. [2024-10-11 03:49:17,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 1607 states have (on average 1.4511512134411948) internal successors, (2332), 1607 states have internal predecessors, (2332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:17,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2332 transitions. [2024-10-11 03:49:17,349 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2332 transitions. Word has length 82 [2024-10-11 03:49:17,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:17,349 INFO L471 AbstractCegarLoop]: Abstraction has 1608 states and 2332 transitions. [2024-10-11 03:49:17,349 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) [2024-10-11 03:49:17,350 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2332 transitions. [2024-10-11 03:49:17,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-11 03:49:17,350 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:17,350 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] [2024-10-11 03:49:17,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 03:49:17,351 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:17,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:17,351 INFO L85 PathProgramCache]: Analyzing trace with hash -659470276, now seen corresponding path program 1 times [2024-10-11 03:49:17,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:17,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367034003] [2024-10-11 03:49:17,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:17,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:17,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:17,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:17,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:17,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367034003] [2024-10-11 03:49:17,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367034003] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:17,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:17,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:49:17,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666603673] [2024-10-11 03:49:17,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:17,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:49:17,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:17,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:49:17,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:49:17,640 INFO L87 Difference]: Start difference. First operand 1608 states and 2332 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:17,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:17,669 INFO L93 Difference]: Finished difference Result 1622 states and 2351 transitions. [2024-10-11 03:49:17,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:49:17,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2024-10-11 03:49:17,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:17,674 INFO L225 Difference]: With dead ends: 1622 [2024-10-11 03:49:17,674 INFO L226 Difference]: Without dead ends: 1620 [2024-10-11 03:49:17,675 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 [2024-10-11 03:49:17,675 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 0 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:17,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 736 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:49:17,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1620 states. [2024-10-11 03:49:17,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1620 to 1620. [2024-10-11 03:49:17,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1620 states, 1619 states have (on average 1.4434836318715256) internal successors, (2337), 1619 states have internal predecessors, (2337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:17,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 2337 transitions. [2024-10-11 03:49:17,703 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 2337 transitions. Word has length 83 [2024-10-11 03:49:17,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:17,704 INFO L471 AbstractCegarLoop]: Abstraction has 1620 states and 2337 transitions. [2024-10-11 03:49:17,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:17,704 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 2337 transitions. [2024-10-11 03:49:17,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-11 03:49:17,705 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:17,705 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] [2024-10-11 03:49:17,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 03:49:17,705 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:17,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:17,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1714989240, now seen corresponding path program 1 times [2024-10-11 03:49:17,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:17,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746911257] [2024-10-11 03:49:17,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:17,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:17,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:18,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:18,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:18,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746911257] [2024-10-11 03:49:18,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746911257] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:18,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:18,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-11 03:49:18,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804057062] [2024-10-11 03:49:18,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:18,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 03:49:18,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:18,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 03:49:18,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-11 03:49:18,325 INFO L87 Difference]: Start difference. First operand 1620 states and 2337 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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) [2024-10-11 03:49:18,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:18,981 INFO L93 Difference]: Finished difference Result 4637 states and 6695 transitions. [2024-10-11 03:49:18,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 03:49:18,981 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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 [2024-10-11 03:49:18,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:18,991 INFO L225 Difference]: With dead ends: 4637 [2024-10-11 03:49:18,991 INFO L226 Difference]: Without dead ends: 3167 [2024-10-11 03:49:18,994 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2024-10-11 03:49:18,995 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 592 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:18,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [592 Valid, 560 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 03:49:18,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3167 states. [2024-10-11 03:49:19,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3167 to 1620. [2024-10-11 03:49:19,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1620 states, 1619 states have (on average 1.4397776405188387) internal successors, (2331), 1619 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:19,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 2331 transitions. [2024-10-11 03:49:19,033 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 2331 transitions. Word has length 83 [2024-10-11 03:49:19,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:19,033 INFO L471 AbstractCegarLoop]: Abstraction has 1620 states and 2331 transitions. [2024-10-11 03:49:19,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 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) [2024-10-11 03:49:19,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 2331 transitions. [2024-10-11 03:49:19,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-11 03:49:19,035 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:19,035 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] [2024-10-11 03:49:19,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 03:49:19,035 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:19,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:19,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1554308713, now seen corresponding path program 1 times [2024-10-11 03:49:19,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:19,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695688635] [2024-10-11 03:49:19,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:19,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:19,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:19,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:19,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:19,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695688635] [2024-10-11 03:49:19,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695688635] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:19,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:19,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-11 03:49:19,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595955289] [2024-10-11 03:49:19,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:19,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 03:49:19,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:19,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 03:49:19,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-11 03:49:19,474 INFO L87 Difference]: Start difference. First operand 1620 states and 2331 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 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) [2024-10-11 03:49:20,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:20,082 INFO L93 Difference]: Finished difference Result 4682 states and 6751 transitions. [2024-10-11 03:49:20,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 03:49:20,083 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 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 [2024-10-11 03:49:20,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:20,092 INFO L225 Difference]: With dead ends: 4682 [2024-10-11 03:49:20,093 INFO L226 Difference]: Without dead ends: 3187 [2024-10-11 03:49:20,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2024-10-11 03:49:20,096 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 848 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:20,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 633 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 03:49:20,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3187 states. [2024-10-11 03:49:20,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3187 to 1620. [2024-10-11 03:49:20,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1620 states, 1619 states have (on average 1.4366893143915997) internal successors, (2326), 1619 states have internal predecessors, (2326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:20,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 2326 transitions. [2024-10-11 03:49:20,130 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 2326 transitions. Word has length 84 [2024-10-11 03:49:20,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:20,130 INFO L471 AbstractCegarLoop]: Abstraction has 1620 states and 2326 transitions. [2024-10-11 03:49:20,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 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) [2024-10-11 03:49:20,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 2326 transitions. [2024-10-11 03:49:20,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-11 03:49:20,132 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:20,132 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] [2024-10-11 03:49:20,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 03:49:20,132 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:20,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:20,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1633213121, now seen corresponding path program 1 times [2024-10-11 03:49:20,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:20,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891162532] [2024-10-11 03:49:20,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:20,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:20,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:20,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:20,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891162532] [2024-10-11 03:49:20,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891162532] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:20,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:20,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:49:20,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824224275] [2024-10-11 03:49:20,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:20,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 03:49:20,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:20,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 03:49:20,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-11 03:49:20,481 INFO L87 Difference]: Start difference. First operand 1620 states and 2326 transitions. Second operand has 8 states, 8 states have (on average 10.5) 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) [2024-10-11 03:49:20,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:20,866 INFO L93 Difference]: Finished difference Result 4620 states and 6679 transitions. [2024-10-11 03:49:20,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:49:20,867 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) 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 [2024-10-11 03:49:20,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:20,872 INFO L225 Difference]: With dead ends: 4620 [2024-10-11 03:49:20,873 INFO L226 Difference]: Without dead ends: 3090 [2024-10-11 03:49:20,875 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-10-11 03:49:20,876 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 671 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:20,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [671 Valid, 484 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:49:20,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3090 states. [2024-10-11 03:49:20,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3090 to 1620. [2024-10-11 03:49:20,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1620 states, 1619 states have (on average 1.436071649166152) internal successors, (2325), 1619 states have internal predecessors, (2325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:20,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 2325 transitions. [2024-10-11 03:49:20,908 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 2325 transitions. Word has length 84 [2024-10-11 03:49:20,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:20,908 INFO L471 AbstractCegarLoop]: Abstraction has 1620 states and 2325 transitions. [2024-10-11 03:49:20,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) 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) [2024-10-11 03:49:20,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 2325 transitions. [2024-10-11 03:49:20,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-11 03:49:20,909 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:20,909 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:49:20,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 03:49:20,910 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:20,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:20,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1569569178, now seen corresponding path program 1 times [2024-10-11 03:49:20,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:20,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807192336] [2024-10-11 03:49:20,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:20,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:20,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:21,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:21,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:21,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807192336] [2024-10-11 03:49:21,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807192336] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:21,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:21,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 03:49:21,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242723659] [2024-10-11 03:49:21,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:21,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 03:49:21,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:21,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 03:49:21,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:49:21,369 INFO L87 Difference]: Start difference. First operand 1620 states and 2325 transitions. Second operand has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:21,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:21,950 INFO L93 Difference]: Finished difference Result 4754 states and 6823 transitions. [2024-10-11 03:49:21,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 03:49:21,951 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-10-11 03:49:21,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:21,956 INFO L225 Difference]: With dead ends: 4754 [2024-10-11 03:49:21,961 INFO L226 Difference]: Without dead ends: 3255 [2024-10-11 03:49:21,964 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2024-10-11 03:49:21,964 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 1145 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1145 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:21,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1145 Valid, 635 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 03:49:21,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3255 states. [2024-10-11 03:49:21,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3255 to 1626. [2024-10-11 03:49:21,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1626 states, 1625 states have (on average 1.4344615384615385) internal successors, (2331), 1625 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:21,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1626 states to 1626 states and 2331 transitions. [2024-10-11 03:49:21,998 INFO L78 Accepts]: Start accepts. Automaton has 1626 states and 2331 transitions. Word has length 85 [2024-10-11 03:49:21,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:21,998 INFO L471 AbstractCegarLoop]: Abstraction has 1626 states and 2331 transitions. [2024-10-11 03:49:21,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:21,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1626 states and 2331 transitions. [2024-10-11 03:49:21,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-11 03:49:21,999 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:21,999 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:49:21,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 03:49:22,000 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:22,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:22,000 INFO L85 PathProgramCache]: Analyzing trace with hash 662143390, now seen corresponding path program 1 times [2024-10-11 03:49:22,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:22,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490410469] [2024-10-11 03:49:22,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:22,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:22,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:22,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:22,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:22,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490410469] [2024-10-11 03:49:22,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490410469] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:22,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:22,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 03:49:22,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647313283] [2024-10-11 03:49:22,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:22,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 03:49:22,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:22,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 03:49:22,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:49:22,561 INFO L87 Difference]: Start difference. First operand 1626 states and 2331 transitions. Second operand has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 10 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:23,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:23,640 INFO L93 Difference]: Finished difference Result 5715 states and 8237 transitions. [2024-10-11 03:49:23,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-11 03:49:23,641 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 10 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-11 03:49:23,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:23,648 INFO L225 Difference]: With dead ends: 5715 [2024-10-11 03:49:23,648 INFO L226 Difference]: Without dead ends: 4190 [2024-10-11 03:49:23,651 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=162, Invalid=488, Unknown=0, NotChecked=0, Total=650 [2024-10-11 03:49:23,651 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 733 mSDsluCounter, 1069 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 1282 SdHoareTripleChecker+Invalid, 1187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:23,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 1282 Invalid, 1187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1180 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 03:49:23,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4190 states. [2024-10-11 03:49:23,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4190 to 1620. [2024-10-11 03:49:23,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1620 states, 1619 states have (on average 1.4348363187152564) internal successors, (2323), 1619 states have internal predecessors, (2323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:23,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 2323 transitions. [2024-10-11 03:49:23,693 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 2323 transitions. Word has length 86 [2024-10-11 03:49:23,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:23,693 INFO L471 AbstractCegarLoop]: Abstraction has 1620 states and 2323 transitions. [2024-10-11 03:49:23,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 10 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:23,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 2323 transitions. [2024-10-11 03:49:23,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-11 03:49:23,694 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:23,694 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:49:23,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 03:49:23,694 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:23,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:23,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1719979192, now seen corresponding path program 1 times [2024-10-11 03:49:23,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:23,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564193021] [2024-10-11 03:49:23,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:23,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:23,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:24,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:24,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:24,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564193021] [2024-10-11 03:49:24,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564193021] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:24,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:24,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 03:49:24,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219665343] [2024-10-11 03:49:24,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:24,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:49:24,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:24,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:49:24,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:49:24,003 INFO L87 Difference]: Start difference. First operand 1620 states and 2323 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:24,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:24,530 INFO L93 Difference]: Finished difference Result 4712 states and 6783 transitions. [2024-10-11 03:49:24,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 03:49:24,531 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-11 03:49:24,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:24,537 INFO L225 Difference]: With dead ends: 4712 [2024-10-11 03:49:24,537 INFO L226 Difference]: Without dead ends: 3197 [2024-10-11 03:49:24,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-10-11 03:49:24,540 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 393 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:24,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 799 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 03:49:24,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3197 states. [2024-10-11 03:49:24,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3197 to 1620. [2024-10-11 03:49:24,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1620 states, 1619 states have (on average 1.4323656578134651) internal successors, (2319), 1619 states have internal predecessors, (2319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:24,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 2319 transitions. [2024-10-11 03:49:24,580 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 2319 transitions. Word has length 86 [2024-10-11 03:49:24,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:24,580 INFO L471 AbstractCegarLoop]: Abstraction has 1620 states and 2319 transitions. [2024-10-11 03:49:24,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:24,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 2319 transitions. [2024-10-11 03:49:24,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-11 03:49:24,582 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:24,582 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] [2024-10-11 03:49:24,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 03:49:24,583 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:24,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:24,583 INFO L85 PathProgramCache]: Analyzing trace with hash 294400252, now seen corresponding path program 1 times [2024-10-11 03:49:24,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:24,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11468442] [2024-10-11 03:49:24,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:24,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:24,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:25,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:25,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:25,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11468442] [2024-10-11 03:49:25,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11468442] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:25,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:25,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-11 03:49:25,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791947703] [2024-10-11 03:49:25,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:25,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-11 03:49:25,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:25,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-11 03:49:25,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-10-11 03:49:25,279 INFO L87 Difference]: Start difference. First operand 1620 states and 2319 transitions. Second operand has 14 states, 14 states have (on average 6.214285714285714) internal successors, (87), 13 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:26,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:26,127 INFO L93 Difference]: Finished difference Result 6606 states and 9549 transitions. [2024-10-11 03:49:26,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-11 03:49:26,128 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.214285714285714) internal successors, (87), 13 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2024-10-11 03:49:26,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:26,138 INFO L225 Difference]: With dead ends: 6606 [2024-10-11 03:49:26,139 INFO L226 Difference]: Without dead ends: 6132 [2024-10-11 03:49:26,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-10-11 03:49:26,143 INFO L432 NwaCegarLoop]: 449 mSDtfsCounter, 821 mSDsluCounter, 2881 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 3330 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:26,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 3330 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:49:26,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6132 states. [2024-10-11 03:49:26,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6132 to 1609. [2024-10-11 03:49:26,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1609 states, 1608 states have (on average 1.4303482587064678) internal successors, (2300), 1608 states have internal predecessors, (2300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:26,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2300 transitions. [2024-10-11 03:49:26,195 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2300 transitions. Word has length 87 [2024-10-11 03:49:26,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:26,196 INFO L471 AbstractCegarLoop]: Abstraction has 1609 states and 2300 transitions. [2024-10-11 03:49:26,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.214285714285714) internal successors, (87), 13 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:26,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2300 transitions. [2024-10-11 03:49:26,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-11 03:49:26,197 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:26,197 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] [2024-10-11 03:49:26,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 03:49:26,197 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:26,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:26,198 INFO L85 PathProgramCache]: Analyzing trace with hash -175919843, now seen corresponding path program 1 times [2024-10-11 03:49:26,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:26,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231413669] [2024-10-11 03:49:26,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:26,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:28,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:28,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:28,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231413669] [2024-10-11 03:49:28,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231413669] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:28,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:28,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2024-10-11 03:49:28,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801805341] [2024-10-11 03:49:28,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:28,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-10-11 03:49:28,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:28,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-10-11 03:49:28,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=800, Unknown=0, NotChecked=0, Total=870 [2024-10-11 03:49:28,843 INFO L87 Difference]: Start difference. First operand 1609 states and 2300 transitions. Second operand has 30 states, 30 states have (on average 2.9) internal successors, (87), 29 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:33,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:33,443 INFO L93 Difference]: Finished difference Result 8064 states and 11657 transitions. [2024-10-11 03:49:33,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-10-11 03:49:33,444 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.9) internal successors, (87), 29 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2024-10-11 03:49:33,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:33,458 INFO L225 Difference]: With dead ends: 8064 [2024-10-11 03:49:33,458 INFO L226 Difference]: Without dead ends: 7610 [2024-10-11 03:49:33,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=406, Invalid=2350, Unknown=0, NotChecked=0, Total=2756 [2024-10-11 03:49:33,462 INFO L432 NwaCegarLoop]: 415 mSDtfsCounter, 1817 mSDsluCounter, 7610 mSDsCounter, 0 mSdLazyCounter, 4903 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1817 SdHoareTripleChecker+Valid, 8025 SdHoareTripleChecker+Invalid, 4903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:33,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1817 Valid, 8025 Invalid, 4903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4903 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-11 03:49:33,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7610 states. [2024-10-11 03:49:33,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7610 to 1632. [2024-10-11 03:49:33,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1632 states, 1631 states have (on average 1.427958307786634) internal successors, (2329), 1631 states have internal predecessors, (2329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:33,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1632 states to 1632 states and 2329 transitions. [2024-10-11 03:49:33,521 INFO L78 Accepts]: Start accepts. Automaton has 1632 states and 2329 transitions. Word has length 87 [2024-10-11 03:49:33,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:33,522 INFO L471 AbstractCegarLoop]: Abstraction has 1632 states and 2329 transitions. [2024-10-11 03:49:33,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.9) internal successors, (87), 29 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:33,522 INFO L276 IsEmpty]: Start isEmpty. Operand 1632 states and 2329 transitions. [2024-10-11 03:49:33,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-11 03:49:33,523 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:33,523 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] [2024-10-11 03:49:33,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-11 03:49:33,523 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:33,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:33,524 INFO L85 PathProgramCache]: Analyzing trace with hash -674427557, now seen corresponding path program 1 times [2024-10-11 03:49:33,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:33,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166616677] [2024-10-11 03:49:33,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:33,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:33,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:34,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:34,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:34,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166616677] [2024-10-11 03:49:34,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166616677] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:34,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:34,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 03:49:34,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066686286] [2024-10-11 03:49:34,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:34,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 03:49:34,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:34,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 03:49:34,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:49:34,127 INFO L87 Difference]: Start difference. First operand 1632 states and 2329 transitions. Second operand has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 12 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:34,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:34,727 INFO L93 Difference]: Finished difference Result 3579 states and 5154 transitions. [2024-10-11 03:49:34,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 03:49:34,728 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 12 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2024-10-11 03:49:34,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:34,733 INFO L225 Difference]: With dead ends: 3579 [2024-10-11 03:49:34,733 INFO L226 Difference]: Without dead ends: 3095 [2024-10-11 03:49:34,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-11 03:49:34,735 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 1000 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:34,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 1095 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:49:34,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3095 states. [2024-10-11 03:49:34,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3095 to 1606. [2024-10-11 03:49:34,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.4286604361370716) internal successors, (2293), 1605 states have internal predecessors, (2293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:34,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 2293 transitions. [2024-10-11 03:49:34,765 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 2293 transitions. Word has length 87 [2024-10-11 03:49:34,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:34,765 INFO L471 AbstractCegarLoop]: Abstraction has 1606 states and 2293 transitions. [2024-10-11 03:49:34,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 12 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:34,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 2293 transitions. [2024-10-11 03:49:34,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-11 03:49:34,766 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:34,766 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] [2024-10-11 03:49:34,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-11 03:49:34,767 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:34,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:34,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1498021318, now seen corresponding path program 1 times [2024-10-11 03:49:34,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:34,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440122466] [2024-10-11 03:49:34,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:34,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:34,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:35,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:35,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:35,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440122466] [2024-10-11 03:49:35,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440122466] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:35,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:35,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-11 03:49:35,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882179212] [2024-10-11 03:49:35,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:35,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 03:49:35,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:35,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 03:49:35,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-10-11 03:49:35,281 INFO L87 Difference]: Start difference. First operand 1606 states and 2293 transitions. Second operand has 12 states, 12 states have (on average 7.25) internal successors, (87), 11 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:35,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:35,856 INFO L93 Difference]: Finished difference Result 6480 states and 9368 transitions. [2024-10-11 03:49:35,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 03:49:35,857 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.25) internal successors, (87), 11 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2024-10-11 03:49:35,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:35,867 INFO L225 Difference]: With dead ends: 6480 [2024-10-11 03:49:35,867 INFO L226 Difference]: Without dead ends: 6001 [2024-10-11 03:49:35,870 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2024-10-11 03:49:35,870 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 846 mSDsluCounter, 1633 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 1902 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:35,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 1902 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:49:35,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6001 states. [2024-10-11 03:49:35,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6001 to 1580. [2024-10-11 03:49:35,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 1.4300189993666879) internal successors, (2258), 1579 states have internal predecessors, (2258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:35,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 2258 transitions. [2024-10-11 03:49:35,915 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 2258 transitions. Word has length 87 [2024-10-11 03:49:35,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:35,915 INFO L471 AbstractCegarLoop]: Abstraction has 1580 states and 2258 transitions. [2024-10-11 03:49:35,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.25) internal successors, (87), 11 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:35,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 2258 transitions. [2024-10-11 03:49:35,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-11 03:49:35,916 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:35,916 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:49:35,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-11 03:49:35,917 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:35,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:35,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1804071413, now seen corresponding path program 1 times [2024-10-11 03:49:35,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:35,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360354532] [2024-10-11 03:49:35,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:35,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:35,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:36,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:36,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:36,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360354532] [2024-10-11 03:49:36,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360354532] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:36,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:36,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 03:49:36,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919073040] [2024-10-11 03:49:36,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:36,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 03:49:36,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:36,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 03:49:36,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:49:36,507 INFO L87 Difference]: Start difference. First operand 1580 states and 2258 transitions. Second operand has 13 states, 13 states have (on average 6.769230769230769) internal successors, (88), 12 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:37,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:37,064 INFO L93 Difference]: Finished difference Result 3507 states and 5056 transitions. [2024-10-11 03:49:37,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 03:49:37,065 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.769230769230769) internal successors, (88), 12 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2024-10-11 03:49:37,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:37,069 INFO L225 Difference]: With dead ends: 3507 [2024-10-11 03:49:37,069 INFO L226 Difference]: Without dead ends: 3053 [2024-10-11 03:49:37,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-11 03:49:37,071 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 643 mSDsluCounter, 1605 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 1834 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:37,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [643 Valid, 1834 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:49:37,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3053 states. [2024-10-11 03:49:37,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3053 to 1555. [2024-10-11 03:49:37,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1554 states have (on average 1.4317889317889319) internal successors, (2225), 1554 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:37,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2225 transitions. [2024-10-11 03:49:37,096 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2225 transitions. Word has length 88 [2024-10-11 03:49:37,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:37,097 INFO L471 AbstractCegarLoop]: Abstraction has 1555 states and 2225 transitions. [2024-10-11 03:49:37,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.769230769230769) internal successors, (88), 12 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:37,097 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2225 transitions. [2024-10-11 03:49:37,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-11 03:49:37,098 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:37,098 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] [2024-10-11 03:49:37,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-11 03:49:37,099 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:37,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:37,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1383019005, now seen corresponding path program 1 times [2024-10-11 03:49:37,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:37,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512145824] [2024-10-11 03:49:37,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:37,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:37,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:37,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:37,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:37,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512145824] [2024-10-11 03:49:37,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512145824] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:37,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:37,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:49:37,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586825928] [2024-10-11 03:49:37,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:37,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 03:49:37,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:37,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 03:49:37,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:49:37,229 INFO L87 Difference]: Start difference. First operand 1555 states and 2225 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:37,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:37,256 INFO L93 Difference]: Finished difference Result 3610 states and 5212 transitions. [2024-10-11 03:49:37,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 03:49:37,256 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2024-10-11 03:49:37,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:37,259 INFO L225 Difference]: With dead ends: 3610 [2024-10-11 03:49:37,259 INFO L226 Difference]: Without dead ends: 2146 [2024-10-11 03:49:37,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:49:37,261 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 88 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 501 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 [2024-10-11 03:49:37,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 501 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:49:37,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2146 states. [2024-10-11 03:49:37,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2146 to 2144. [2024-10-11 03:49:37,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2144 states, 2143 states have (on average 1.43117125524965) internal successors, (3067), 2143 states have internal predecessors, (3067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:37,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2144 states to 2144 states and 3067 transitions. [2024-10-11 03:49:37,288 INFO L78 Accepts]: Start accepts. Automaton has 2144 states and 3067 transitions. Word has length 88 [2024-10-11 03:49:37,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:37,288 INFO L471 AbstractCegarLoop]: Abstraction has 2144 states and 3067 transitions. [2024-10-11 03:49:37,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:37,289 INFO L276 IsEmpty]: Start isEmpty. Operand 2144 states and 3067 transitions. [2024-10-11 03:49:37,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-11 03:49:37,289 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:37,289 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] [2024-10-11 03:49:37,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-11 03:49:37,290 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:37,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:37,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1330616519, now seen corresponding path program 1 times [2024-10-11 03:49:37,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:37,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157592366] [2024-10-11 03:49:37,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:37,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:37,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:38,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:38,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:38,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157592366] [2024-10-11 03:49:38,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157592366] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:38,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:38,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2024-10-11 03:49:38,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431425285] [2024-10-11 03:49:38,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:38,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-11 03:49:38,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:38,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-11 03:49:38,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=850, Unknown=0, NotChecked=0, Total=930 [2024-10-11 03:49:38,898 INFO L87 Difference]: Start difference. First operand 2144 states and 3067 transitions. Second operand has 31 states, 31 states have (on average 2.838709677419355) internal successors, (88), 31 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:43,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:43,017 INFO L93 Difference]: Finished difference Result 14558 states and 20998 transitions. [2024-10-11 03:49:43,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-11 03:49:43,018 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.838709677419355) internal successors, (88), 31 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2024-10-11 03:49:43,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:43,032 INFO L225 Difference]: With dead ends: 14558 [2024-10-11 03:49:43,032 INFO L226 Difference]: Without dead ends: 12503 [2024-10-11 03:49:43,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=448, Invalid=2744, Unknown=0, NotChecked=0, Total=3192 [2024-10-11 03:49:43,042 INFO L432 NwaCegarLoop]: 521 mSDtfsCounter, 1287 mSDsluCounter, 9445 mSDsCounter, 0 mSdLazyCounter, 6311 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 9966 SdHoareTripleChecker+Invalid, 6312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:43,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1287 Valid, 9966 Invalid, 6312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6311 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-10-11 03:49:43,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12503 states. [2024-10-11 03:49:43,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12503 to 2165. [2024-10-11 03:49:43,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2165 states, 2164 states have (on average 1.4288354898336415) internal successors, (3092), 2164 states have internal predecessors, (3092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:43,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2165 states to 2165 states and 3092 transitions. [2024-10-11 03:49:43,173 INFO L78 Accepts]: Start accepts. Automaton has 2165 states and 3092 transitions. Word has length 88 [2024-10-11 03:49:43,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:43,174 INFO L471 AbstractCegarLoop]: Abstraction has 2165 states and 3092 transitions. [2024-10-11 03:49:43,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.838709677419355) internal successors, (88), 31 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:43,174 INFO L276 IsEmpty]: Start isEmpty. Operand 2165 states and 3092 transitions. [2024-10-11 03:49:43,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-11 03:49:43,175 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:43,175 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:49:43,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-11 03:49:43,175 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:43,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:43,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1897441895, now seen corresponding path program 1 times [2024-10-11 03:49:43,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:43,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082903995] [2024-10-11 03:49:43,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:43,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:43,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:43,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:43,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:43,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082903995] [2024-10-11 03:49:43,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082903995] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:43,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:43,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-11 03:49:43,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910692220] [2024-10-11 03:49:43,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:43,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 03:49:43,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:43,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 03:49:43,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-11 03:49:43,707 INFO L87 Difference]: Start difference. First operand 2165 states and 3092 transitions. Second operand has 12 states, 12 states have (on average 7.416666666666667) internal successors, (89), 11 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) [2024-10-11 03:49:44,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:44,136 INFO L93 Difference]: Finished difference Result 4895 states and 7039 transitions. [2024-10-11 03:49:44,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 03:49:44,137 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.416666666666667) internal successors, (89), 11 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 [2024-10-11 03:49:44,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:44,141 INFO L225 Difference]: With dead ends: 4895 [2024-10-11 03:49:44,141 INFO L226 Difference]: Without dead ends: 4219 [2024-10-11 03:49:44,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2024-10-11 03:49:44,144 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 612 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:44,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 1088 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:49:44,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4219 states. [2024-10-11 03:49:44,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4219 to 2154. [2024-10-11 03:49:44,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2154 states, 2153 states have (on average 1.4296330701346958) internal successors, (3078), 2153 states have internal predecessors, (3078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:44,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2154 states to 2154 states and 3078 transitions. [2024-10-11 03:49:44,191 INFO L78 Accepts]: Start accepts. Automaton has 2154 states and 3078 transitions. Word has length 89 [2024-10-11 03:49:44,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:44,191 INFO L471 AbstractCegarLoop]: Abstraction has 2154 states and 3078 transitions. [2024-10-11 03:49:44,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.416666666666667) internal successors, (89), 11 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) [2024-10-11 03:49:44,192 INFO L276 IsEmpty]: Start isEmpty. Operand 2154 states and 3078 transitions. [2024-10-11 03:49:44,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-11 03:49:44,219 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:44,220 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:49:44,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-11 03:49:44,220 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:44,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:44,221 INFO L85 PathProgramCache]: Analyzing trace with hash -533982139, now seen corresponding path program 1 times [2024-10-11 03:49:44,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:44,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783975091] [2024-10-11 03:49:44,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:44,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:44,349 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:44,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:44,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783975091] [2024-10-11 03:49:44,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783975091] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:44,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:44,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:49:44,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022430748] [2024-10-11 03:49:44,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:44,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:49:44,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:44,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:49:44,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:49:44,351 INFO L87 Difference]: Start difference. First operand 2154 states and 3078 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:44,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:44,375 INFO L93 Difference]: Finished difference Result 4471 states and 6423 transitions. [2024-10-11 03:49:44,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:49:44,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2024-10-11 03:49:44,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:44,379 INFO L225 Difference]: With dead ends: 4471 [2024-10-11 03:49:44,379 INFO L226 Difference]: Without dead ends: 3007 [2024-10-11 03:49:44,381 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 [2024-10-11 03:49:44,382 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 81 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:44,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 391 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:49:44,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3007 states. [2024-10-11 03:49:44,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3007 to 2897. [2024-10-11 03:49:44,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2897 states, 2896 states have (on average 1.4271408839779005) internal successors, (4133), 2896 states have internal predecessors, (4133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:44,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2897 states to 2897 states and 4133 transitions. [2024-10-11 03:49:44,428 INFO L78 Accepts]: Start accepts. Automaton has 2897 states and 4133 transitions. Word has length 117 [2024-10-11 03:49:44,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:44,429 INFO L471 AbstractCegarLoop]: Abstraction has 2897 states and 4133 transitions. [2024-10-11 03:49:44,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:44,429 INFO L276 IsEmpty]: Start isEmpty. Operand 2897 states and 4133 transitions. [2024-10-11 03:49:44,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-10-11 03:49:44,430 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:44,430 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:49:44,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-11 03:49:44,430 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:44,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:44,431 INFO L85 PathProgramCache]: Analyzing trace with hash -870729236, now seen corresponding path program 1 times [2024-10-11 03:49:44,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:44,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565620932] [2024-10-11 03:49:44,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:44,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:44,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:44,566 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:44,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:44,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565620932] [2024-10-11 03:49:44,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565620932] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:44,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:44,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:49:44,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689819781] [2024-10-11 03:49:44,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:44,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:49:44,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:44,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:49:44,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:49:44,569 INFO L87 Difference]: Start difference. First operand 2897 states and 4133 transitions. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:44,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:44,812 INFO L93 Difference]: Finished difference Result 10571 states and 15263 transitions. [2024-10-11 03:49:44,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:49:44,813 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2024-10-11 03:49:44,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:44,820 INFO L225 Difference]: With dead ends: 10571 [2024-10-11 03:49:44,820 INFO L226 Difference]: Without dead ends: 7784 [2024-10-11 03:49:44,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:49:44,824 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 926 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:44,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 338 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:49:44,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7784 states. [2024-10-11 03:49:44,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7784 to 6182. [2024-10-11 03:49:44,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6182 states, 6181 states have (on average 1.4313217925901958) internal successors, (8847), 6181 states have internal predecessors, (8847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:44,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6182 states to 6182 states and 8847 transitions. [2024-10-11 03:49:44,915 INFO L78 Accepts]: Start accepts. Automaton has 6182 states and 8847 transitions. Word has length 119 [2024-10-11 03:49:44,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:44,916 INFO L471 AbstractCegarLoop]: Abstraction has 6182 states and 8847 transitions. [2024-10-11 03:49:44,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:44,916 INFO L276 IsEmpty]: Start isEmpty. Operand 6182 states and 8847 transitions. [2024-10-11 03:49:44,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-10-11 03:49:44,917 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:44,917 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:49:44,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-11 03:49:44,918 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:44,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:44,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1954144937, now seen corresponding path program 1 times [2024-10-11 03:49:44,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:44,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276548176] [2024-10-11 03:49:44,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:44,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:44,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:45,044 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:45,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:45,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276548176] [2024-10-11 03:49:45,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276548176] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:45,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:45,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:49:45,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555401946] [2024-10-11 03:49:45,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:45,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:49:45,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:45,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:49:45,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:49:45,047 INFO L87 Difference]: Start difference. First operand 6182 states and 8847 transitions. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:45,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:45,373 INFO L93 Difference]: Finished difference Result 20526 states and 29505 transitions. [2024-10-11 03:49:45,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:49:45,373 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2024-10-11 03:49:45,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:45,395 INFO L225 Difference]: With dead ends: 20526 [2024-10-11 03:49:45,396 INFO L226 Difference]: Without dead ends: 14454 [2024-10-11 03:49:45,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:49:45,405 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 841 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:45,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [841 Valid, 336 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:49:45,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14454 states. [2024-10-11 03:49:45,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14454 to 13252. [2024-10-11 03:49:45,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13252 states, 13251 states have (on average 1.4319673986868915) internal successors, (18975), 13251 states have internal predecessors, (18975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:45,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13252 states to 13252 states and 18975 transitions. [2024-10-11 03:49:45,599 INFO L78 Accepts]: Start accepts. Automaton has 13252 states and 18975 transitions. Word has length 119 [2024-10-11 03:49:45,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:45,599 INFO L471 AbstractCegarLoop]: Abstraction has 13252 states and 18975 transitions. [2024-10-11 03:49:45,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:45,599 INFO L276 IsEmpty]: Start isEmpty. Operand 13252 states and 18975 transitions. [2024-10-11 03:49:45,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-10-11 03:49:45,602 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:45,602 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:49:45,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-11 03:49:45,603 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:45,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:45,604 INFO L85 PathProgramCache]: Analyzing trace with hash -69998109, now seen corresponding path program 1 times [2024-10-11 03:49:45,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:45,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553112922] [2024-10-11 03:49:45,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:45,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:45,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:45,730 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:45,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:45,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553112922] [2024-10-11 03:49:45,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553112922] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:45,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:45,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:49:45,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402996351] [2024-10-11 03:49:45,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:45,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:49:45,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:45,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:49:45,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:49:45,734 INFO L87 Difference]: Start difference. First operand 13252 states and 18975 transitions. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:46,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:46,031 INFO L93 Difference]: Finished difference Result 49536 states and 71489 transitions. [2024-10-11 03:49:46,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:49:46,031 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2024-10-11 03:49:46,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:46,080 INFO L225 Difference]: With dead ends: 49536 [2024-10-11 03:49:46,080 INFO L226 Difference]: Without dead ends: 36394 [2024-10-11 03:49:46,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:49:46,102 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 1011 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:46,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1011 Valid, 340 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:49:46,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36394 states. [2024-10-11 03:49:46,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36394 to 28392. [2024-10-11 03:49:46,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28392 states, 28391 states have (on average 1.4311225388327287) internal successors, (40631), 28391 states have internal predecessors, (40631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:46,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28392 states to 28392 states and 40631 transitions. [2024-10-11 03:49:46,670 INFO L78 Accepts]: Start accepts. Automaton has 28392 states and 40631 transitions. Word has length 119 [2024-10-11 03:49:46,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:46,670 INFO L471 AbstractCegarLoop]: Abstraction has 28392 states and 40631 transitions. [2024-10-11 03:49:46,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:46,671 INFO L276 IsEmpty]: Start isEmpty. Operand 28392 states and 40631 transitions. [2024-10-11 03:49:46,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-10-11 03:49:46,672 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:46,672 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:49:46,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-11 03:49:46,672 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:46,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:46,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1895685353, now seen corresponding path program 1 times [2024-10-11 03:49:46,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:46,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030118536] [2024-10-11 03:49:46,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:46,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:46,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:46,798 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:46,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:46,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030118536] [2024-10-11 03:49:46,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030118536] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:46,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:46,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:49:46,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267063099] [2024-10-11 03:49:46,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:46,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:49:46,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:46,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:49:46,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:49:46,800 INFO L87 Difference]: Start difference. First operand 28392 states and 40631 transitions. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:47,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:47,182 INFO L93 Difference]: Finished difference Result 64359 states and 92287 transitions. [2024-10-11 03:49:47,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 03:49:47,183 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2024-10-11 03:49:47,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:47,226 INFO L225 Difference]: With dead ends: 64359 [2024-10-11 03:49:47,226 INFO L226 Difference]: Without dead ends: 36077 [2024-10-11 03:49:47,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-10-11 03:49:47,255 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 895 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:47,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [895 Valid, 388 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:49:47,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36077 states. [2024-10-11 03:49:47,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36077 to 30273. [2024-10-11 03:49:47,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30273 states, 30272 states have (on average 1.4250462473572938) internal successors, (43139), 30272 states have internal predecessors, (43139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:47,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30273 states to 30273 states and 43139 transitions. [2024-10-11 03:49:47,797 INFO L78 Accepts]: Start accepts. Automaton has 30273 states and 43139 transitions. Word has length 119 [2024-10-11 03:49:47,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:47,797 INFO L471 AbstractCegarLoop]: Abstraction has 30273 states and 43139 transitions. [2024-10-11 03:49:47,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:47,798 INFO L276 IsEmpty]: Start isEmpty. Operand 30273 states and 43139 transitions. [2024-10-11 03:49:47,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-11 03:49:47,805 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:47,806 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:49:47,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-11 03:49:47,806 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:47,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:47,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1459233051, now seen corresponding path program 1 times [2024-10-11 03:49:47,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:47,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629966052] [2024-10-11 03:49:47,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:47,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:47,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:48,148 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-11 03:49:48,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:48,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629966052] [2024-10-11 03:49:48,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629966052] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:48,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:48,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:49:48,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749614919] [2024-10-11 03:49:48,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:48,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:49:48,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:48,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:49:48,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:49:48,152 INFO L87 Difference]: Start difference. First operand 30273 states and 43139 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:48,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:48,298 INFO L93 Difference]: Finished difference Result 58317 states and 82933 transitions. [2024-10-11 03:49:48,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:49:48,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 146 [2024-10-11 03:49:48,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:48,336 INFO L225 Difference]: With dead ends: 58317 [2024-10-11 03:49:48,336 INFO L226 Difference]: Without dead ends: 28160 [2024-10-11 03:49:48,361 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 [2024-10-11 03:49:48,361 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 74 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:48,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 380 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:49:48,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28160 states. [2024-10-11 03:49:48,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28160 to 27528. [2024-10-11 03:49:48,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27528 states, 27527 states have (on average 1.4123951029897919) internal successors, (38879), 27527 states have internal predecessors, (38879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:48,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27528 states to 27528 states and 38879 transitions. [2024-10-11 03:49:48,629 INFO L78 Accepts]: Start accepts. Automaton has 27528 states and 38879 transitions. Word has length 146 [2024-10-11 03:49:48,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:48,630 INFO L471 AbstractCegarLoop]: Abstraction has 27528 states and 38879 transitions. [2024-10-11 03:49:48,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:48,630 INFO L276 IsEmpty]: Start isEmpty. Operand 27528 states and 38879 transitions. [2024-10-11 03:49:48,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-11 03:49:48,636 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:48,636 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:49:48,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-11 03:49:48,637 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:48,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:48,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1183805486, now seen corresponding path program 1 times [2024-10-11 03:49:48,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:48,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683716613] [2024-10-11 03:49:48,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:48,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:48,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:48,866 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-11 03:49:48,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:48,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683716613] [2024-10-11 03:49:48,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683716613] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:48,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:48,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:49:48,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32119235] [2024-10-11 03:49:48,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:48,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:49:48,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:48,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:49:48,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:49:48,869 INFO L87 Difference]: Start difference. First operand 27528 states and 38879 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:48,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:48,993 INFO L93 Difference]: Finished difference Result 52848 states and 74441 transitions. [2024-10-11 03:49:48,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:49:48,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 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 147 [2024-10-11 03:49:48,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:49,022 INFO L225 Difference]: With dead ends: 52848 [2024-10-11 03:49:49,022 INFO L226 Difference]: Without dead ends: 25430 [2024-10-11 03:49:49,046 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 [2024-10-11 03:49:49,047 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 68 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:49,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 381 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:49:49,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25430 states. [2024-10-11 03:49:49,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25430 to 24828. [2024-10-11 03:49:49,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24828 states, 24827 states have (on average 1.3968260361702984) internal successors, (34679), 24827 states have internal predecessors, (34679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:49,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24828 states to 24828 states and 34679 transitions. [2024-10-11 03:49:49,289 INFO L78 Accepts]: Start accepts. Automaton has 24828 states and 34679 transitions. Word has length 147 [2024-10-11 03:49:49,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:49,290 INFO L471 AbstractCegarLoop]: Abstraction has 24828 states and 34679 transitions. [2024-10-11 03:49:49,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:49,290 INFO L276 IsEmpty]: Start isEmpty. Operand 24828 states and 34679 transitions. [2024-10-11 03:49:49,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-11 03:49:49,295 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:49,295 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:49:49,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-11 03:49:49,296 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:49,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:49,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1381702518, now seen corresponding path program 1 times [2024-10-11 03:49:49,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:49,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006001878] [2024-10-11 03:49:49,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:49,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:49,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:49,576 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-11 03:49:49,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:49,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006001878] [2024-10-11 03:49:49,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006001878] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:49,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:49,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:49:49,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688816273] [2024-10-11 03:49:49,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:49,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:49:49,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:49,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:49:49,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:49:49,579 INFO L87 Difference]: Start difference. First operand 24828 states and 34679 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:49,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:49,724 INFO L93 Difference]: Finished difference Result 47448 states and 66041 transitions. [2024-10-11 03:49:49,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:49:49,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 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 148 [2024-10-11 03:49:49,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:49,750 INFO L225 Difference]: With dead ends: 47448 [2024-10-11 03:49:49,750 INFO L226 Difference]: Without dead ends: 22730 [2024-10-11 03:49:49,770 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 [2024-10-11 03:49:49,771 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 61 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:49,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 382 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:49:49,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22730 states. [2024-10-11 03:49:49,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22730 to 22128. [2024-10-11 03:49:50,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22128 states, 22127 states have (on average 1.3774574049803407) internal successors, (30479), 22127 states have internal predecessors, (30479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:50,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22128 states to 22128 states and 30479 transitions. [2024-10-11 03:49:50,038 INFO L78 Accepts]: Start accepts. Automaton has 22128 states and 30479 transitions. Word has length 148 [2024-10-11 03:49:50,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:50,038 INFO L471 AbstractCegarLoop]: Abstraction has 22128 states and 30479 transitions. [2024-10-11 03:49:50,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:50,039 INFO L276 IsEmpty]: Start isEmpty. Operand 22128 states and 30479 transitions. [2024-10-11 03:49:50,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-10-11 03:49:50,043 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:50,043 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:49:50,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-10-11 03:49:50,043 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:50,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:50,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1342377023, now seen corresponding path program 1 times [2024-10-11 03:49:50,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:50,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455108310] [2024-10-11 03:49:50,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:50,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:50,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:50,220 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-11 03:49:50,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:50,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455108310] [2024-10-11 03:49:50,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455108310] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:49:50,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:49:50,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:49:50,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857111632] [2024-10-11 03:49:50,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:49:50,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:49:50,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:50,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:49:50,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:49:50,224 INFO L87 Difference]: Start difference. First operand 22128 states and 30479 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:50,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:49:50,415 INFO L93 Difference]: Finished difference Result 63964 states and 87601 transitions. [2024-10-11 03:49:50,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:49:50,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 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 149 [2024-10-11 03:49:50,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:49:50,472 INFO L225 Difference]: With dead ends: 63964 [2024-10-11 03:49:50,472 INFO L226 Difference]: Without dead ends: 41946 [2024-10-11 03:49:50,496 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 [2024-10-11 03:49:50,496 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 54 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:49:50,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 383 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:49:50,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41946 states. [2024-10-11 03:49:50,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41946 to 39144. [2024-10-11 03:49:50,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39144 states, 39143 states have (on average 1.3601154740311168) internal successors, (53239), 39143 states have internal predecessors, (53239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:51,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39144 states to 39144 states and 53239 transitions. [2024-10-11 03:49:51,019 INFO L78 Accepts]: Start accepts. Automaton has 39144 states and 53239 transitions. Word has length 149 [2024-10-11 03:49:51,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:49:51,019 INFO L471 AbstractCegarLoop]: Abstraction has 39144 states and 53239 transitions. [2024-10-11 03:49:51,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:49:51,020 INFO L276 IsEmpty]: Start isEmpty. Operand 39144 states and 53239 transitions. [2024-10-11 03:49:51,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-11 03:49:51,024 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:49:51,024 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:49:51,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-10-11 03:49:51,024 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:49:51,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:49:51,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1950723015, now seen corresponding path program 1 times [2024-10-11 03:49:51,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:49:51,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44810357] [2024-10-11 03:49:51,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:51,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:49:51,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:51,525 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:51,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:49:51,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44810357] [2024-10-11 03:49:51,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44810357] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:49:51,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832266182] [2024-10-11 03:49:51,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:49:51,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:49:51,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:49:51,527 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:49:51,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 03:49:51,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:49:51,720 INFO L255 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 03:49:51,727 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:49:52,535 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 15 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:52,535 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:49:54,165 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 15 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:49:54,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832266182] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:49:54,165 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:49:54,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 24 [2024-10-11 03:49:54,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92845504] [2024-10-11 03:49:54,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:49:54,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-11 03:49:54,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:49:54,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-11 03:49:54,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2024-10-11 03:49:54,169 INFO L87 Difference]: Start difference. First operand 39144 states and 53239 transitions. Second operand has 25 states, 25 states have (on average 16.88) internal successors, (422), 24 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:50:02,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:50:02,266 INFO L93 Difference]: Finished difference Result 475754 states and 646001 transitions. [2024-10-11 03:50:02,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2024-10-11 03:50:02,267 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 16.88) internal successors, (422), 24 states have internal predecessors, (422), 0 states have call successors, (0), 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 150 [2024-10-11 03:50:02,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:50:03,040 INFO L225 Difference]: With dead ends: 475754 [2024-10-11 03:50:03,040 INFO L226 Difference]: Without dead ends: 436720 [2024-10-11 03:50:03,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 490 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 205 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16017 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=4981, Invalid=37661, Unknown=0, NotChecked=0, Total=42642 [2024-10-11 03:50:03,827 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 4477 mSDsluCounter, 2805 mSDsCounter, 0 mSdLazyCounter, 3798 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4477 SdHoareTripleChecker+Valid, 3058 SdHoareTripleChecker+Invalid, 3819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 3798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-11 03:50:03,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4477 Valid, 3058 Invalid, 3819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 3798 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-11 03:50:04,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436720 states. [2024-10-11 03:50:07,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436720 to 230389. [2024-10-11 03:50:08,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230389 states, 230388 states have (on average 1.3512292306890983) internal successors, (311307), 230388 states have internal predecessors, (311307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:50:08,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230389 states to 230389 states and 311307 transitions. [2024-10-11 03:50:08,909 INFO L78 Accepts]: Start accepts. Automaton has 230389 states and 311307 transitions. Word has length 150 [2024-10-11 03:50:08,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:50:08,910 INFO L471 AbstractCegarLoop]: Abstraction has 230389 states and 311307 transitions. [2024-10-11 03:50:08,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 16.88) internal successors, (422), 24 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:50:08,910 INFO L276 IsEmpty]: Start isEmpty. Operand 230389 states and 311307 transitions. [2024-10-11 03:50:08,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-11 03:50:08,922 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:50:08,922 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:50:08,937 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 03:50:09,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-10-11 03:50:09,123 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:50:09,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:50:09,124 INFO L85 PathProgramCache]: Analyzing trace with hash 2086734025, now seen corresponding path program 1 times [2024-10-11 03:50:09,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:50:09,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033028776] [2024-10-11 03:50:09,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:50:09,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:50:09,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:50:10,134 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:50:10,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:50:10,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033028776] [2024-10-11 03:50:10,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033028776] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:50:10,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963986522] [2024-10-11 03:50:10,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:50:10,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:50:10,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:50:10,138 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:50:10,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 03:50:10,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:50:10,384 INFO L255 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-10-11 03:50:10,394 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:50:10,984 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-11 03:50:10,984 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:50:12,170 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-11 03:50:12,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963986522] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:50:12,171 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:50:12,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 25 [2024-10-11 03:50:12,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574604343] [2024-10-11 03:50:12,171 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:50:12,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-11 03:50:12,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:50:12,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-11 03:50:12,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=509, Unknown=0, NotChecked=0, Total=600 [2024-10-11 03:50:12,173 INFO L87 Difference]: Start difference. First operand 230389 states and 311307 transitions. Second operand has 25 states, 25 states have (on average 17.0) internal successors, (425), 25 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)