./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/pals_opt-floodmax.4.3.ufo.BOUNDED-8.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.3.ufo.BOUNDED-8.pals.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1936862b5856707e80b1aa2b38aa8e033b3615fe51a16f40b8e11843db1147ca --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 01:27:46,541 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 01:27:46,632 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 01:27:46,638 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 01:27:46,640 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 01:27:46,670 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 01:27:46,671 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 01:27:46,671 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 01:27:46,672 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 01:27:46,672 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 01:27:46,672 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 01:27:46,673 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 01:27:46,674 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 01:27:46,675 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 01:27:46,675 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 01:27:46,678 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 01:27:46,678 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 01:27:46,678 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 01:27:46,679 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 01:27:46,679 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 01:27:46,679 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 01:27:46,681 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 01:27:46,681 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 01:27:46,684 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 01:27:46,684 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 01:27:46,685 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 01:27:46,685 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 01:27:46,685 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 01:27:46,685 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 01:27:46,686 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 01:27:46,686 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 01:27:46,686 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 01:27:46,686 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:27:46,687 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 01:27:46,687 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 01:27:46,687 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 01:27:46,689 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 01:27:46,689 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 01:27:46,690 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 01:27:46,690 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 01:27:46,690 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 01:27:46,691 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 01:27:46,691 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1936862b5856707e80b1aa2b38aa8e033b3615fe51a16f40b8e11843db1147ca [2024-10-24 01:27:46,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 01:27:46,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 01:27:46,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 01:27:46,966 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 01:27:46,967 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 01:27:46,968 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.3.ufo.BOUNDED-8.pals.c [2024-10-24 01:27:48,492 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 01:27:48,745 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 01:27:48,745 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.3.ufo.BOUNDED-8.pals.c [2024-10-24 01:27:48,760 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54983045f/a296389551a643abac50e771d6ea9598/FLAG54346002c [2024-10-24 01:27:48,772 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54983045f/a296389551a643abac50e771d6ea9598 [2024-10-24 01:27:48,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 01:27:48,776 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 01:27:48,777 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 01:27:48,777 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 01:27:48,781 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 01:27:48,781 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:27:48" (1/1) ... [2024-10-24 01:27:48,782 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d34c6bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:27:48, skipping insertion in model container [2024-10-24 01:27:48,782 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:27:48" (1/1) ... [2024-10-24 01:27:48,830 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 01:27:49,151 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/pals_opt-floodmax.4.3.ufo.BOUNDED-8.pals.c[30998,31011] [2024-10-24 01:27:49,155 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:27:49,168 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 01:27:49,297 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/pals_opt-floodmax.4.3.ufo.BOUNDED-8.pals.c[30998,31011] [2024-10-24 01:27:49,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:27:49,330 INFO L204 MainTranslator]: Completed translation [2024-10-24 01:27:49,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:27:49 WrapperNode [2024-10-24 01:27:49,330 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 01:27:49,331 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 01:27:49,331 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 01:27:49,332 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 01:27:49,337 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:27:49" (1/1) ... [2024-10-24 01:27:49,361 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:27:49" (1/1) ... [2024-10-24 01:27:49,406 INFO L138 Inliner]: procedures = 23, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 1022 [2024-10-24 01:27:49,407 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 01:27:49,408 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 01:27:49,408 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 01:27:49,408 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 01:27:49,420 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:27:49" (1/1) ... [2024-10-24 01:27:49,420 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:27:49" (1/1) ... [2024-10-24 01:27:49,426 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:27:49" (1/1) ... [2024-10-24 01:27:49,450 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 01:27:49,451 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:27:49" (1/1) ... [2024-10-24 01:27:49,451 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:27:49" (1/1) ... [2024-10-24 01:27:49,468 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:27:49" (1/1) ... [2024-10-24 01:27:49,490 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:27:49" (1/1) ... [2024-10-24 01:27:49,497 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:27:49" (1/1) ... [2024-10-24 01:27:49,511 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:27:49" (1/1) ... [2024-10-24 01:27:49,526 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 01:27:49,527 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 01:27:49,527 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 01:27:49,528 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 01:27:49,528 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:27:49" (1/1) ... [2024-10-24 01:27:49,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:27:49,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:27:49,567 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 01:27:49,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 01:27:49,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 01:27:49,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 01:27:49,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 01:27:49,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 01:27:49,750 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 01:27:49,754 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 01:27:50,918 INFO L? ?]: Removed 115 outVars from TransFormulas that were not future-live. [2024-10-24 01:27:50,918 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 01:27:51,011 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 01:27:51,011 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 01:27:51,012 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:27:51 BoogieIcfgContainer [2024-10-24 01:27:51,012 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 01:27:51,014 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 01:27:51,014 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 01:27:51,017 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 01:27:51,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:27:48" (1/3) ... [2024-10-24 01:27:51,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3637e3cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:27:51, skipping insertion in model container [2024-10-24 01:27:51,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:27:49" (2/3) ... [2024-10-24 01:27:51,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3637e3cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:27:51, skipping insertion in model container [2024-10-24 01:27:51,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:27:51" (3/3) ... [2024-10-24 01:27:51,020 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.3.ufo.BOUNDED-8.pals.c [2024-10-24 01:27:51,036 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 01:27:51,037 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 01:27:51,102 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 01:27:51,109 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;@47aa9345, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 01:27:51,109 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 01:27:51,116 INFO L276 IsEmpty]: Start isEmpty. Operand has 295 states, 293 states have (on average 1.8464163822525597) internal successors, (541), 294 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:27:51,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-24 01:27:51,128 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:27:51,129 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] [2024-10-24 01:27:51,130 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:27:51,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:27:51,135 INFO L85 PathProgramCache]: Analyzing trace with hash 161010011, now seen corresponding path program 1 times [2024-10-24 01:27:51,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:27:51,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758772516] [2024-10-24 01:27:51,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:27:51,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:27:51,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:27:51,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:27:51,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:27:51,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758772516] [2024-10-24 01:27:51,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758772516] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:27:51,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:27:51,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 01:27:51,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228948165] [2024-10-24 01:27:51,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:27:51,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 01:27:51,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:27:51,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 01:27:51,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 01:27:51,652 INFO L87 Difference]: Start difference. First operand has 295 states, 293 states have (on average 1.8464163822525597) internal successors, (541), 294 states have internal predecessors, (541), 0 states have call successors, (0), 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 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:27:51,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:27:51,843 INFO L93 Difference]: Finished difference Result 397 states and 722 transitions. [2024-10-24 01:27:51,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 01:27:51,848 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-10-24 01:27:51,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:27:51,879 INFO L225 Difference]: With dead ends: 397 [2024-10-24 01:27:51,880 INFO L226 Difference]: Without dead ends: 293 [2024-10-24 01:27:51,883 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 01:27:51,892 INFO L432 NwaCegarLoop]: 534 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:27:51,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 534 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:27:51,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-10-24 01:27:51,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2024-10-24 01:27:51,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 292 states have (on average 1.8356164383561644) internal successors, (536), 292 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:27:51,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 536 transitions. [2024-10-24 01:27:51,956 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 536 transitions. Word has length 74 [2024-10-24 01:27:51,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:27:51,956 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 536 transitions. [2024-10-24 01:27:51,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:27:51,957 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 536 transitions. [2024-10-24 01:27:51,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-24 01:27:51,962 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:27:51,962 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] [2024-10-24 01:27:51,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 01:27:51,963 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:27:51,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:27:51,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1644428323, now seen corresponding path program 1 times [2024-10-24 01:27:51,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:27:51,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711544395] [2024-10-24 01:27:51,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:27:51,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:27:52,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:27:52,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:27:52,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:27:52,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711544395] [2024-10-24 01:27:52,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711544395] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:27:52,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:27:52,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:27:52,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701429550] [2024-10-24 01:27:52,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:27:52,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:27:52,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:27:52,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:27:52,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:27:52,317 INFO L87 Difference]: Start difference. First operand 293 states and 536 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:27:52,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:27:52,543 INFO L93 Difference]: Finished difference Result 395 states and 715 transitions. [2024-10-24 01:27:52,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:27:52,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-10-24 01:27:52,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:27:52,547 INFO L225 Difference]: With dead ends: 395 [2024-10-24 01:27:52,547 INFO L226 Difference]: Without dead ends: 293 [2024-10-24 01:27:52,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:27:52,549 INFO L432 NwaCegarLoop]: 533 mSDtfsCounter, 0 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:27:52,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1550 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:27:52,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-10-24 01:27:52,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2024-10-24 01:27:52,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 292 states have (on average 1.678082191780822) internal successors, (490), 292 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:27:52,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 490 transitions. [2024-10-24 01:27:52,564 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 490 transitions. Word has length 74 [2024-10-24 01:27:52,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:27:52,565 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 490 transitions. [2024-10-24 01:27:52,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:27:52,565 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 490 transitions. [2024-10-24 01:27:52,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-10-24 01:27:52,571 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:27:52,572 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:27:52,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 01:27:52,572 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:27:52,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:27:52,573 INFO L85 PathProgramCache]: Analyzing trace with hash 427323051, now seen corresponding path program 1 times [2024-10-24 01:27:52,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:27:52,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332930098] [2024-10-24 01:27:52,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:27:52,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:27:52,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:27:52,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:27:52,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:27:52,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332930098] [2024-10-24 01:27:52,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332930098] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:27:52,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:27:52,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:27:52,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963044993] [2024-10-24 01:27:52,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:27:52,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:27:52,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:27:52,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:27:52,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:27:52,837 INFO L87 Difference]: Start difference. First operand 293 states and 490 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:27:52,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:27:52,967 INFO L93 Difference]: Finished difference Result 479 states and 820 transitions. [2024-10-24 01:27:52,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:27:52,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2024-10-24 01:27:52,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:27:52,971 INFO L225 Difference]: With dead ends: 479 [2024-10-24 01:27:52,971 INFO L226 Difference]: Without dead ends: 380 [2024-10-24 01:27:52,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:27:52,974 INFO L432 NwaCegarLoop]: 482 mSDtfsCounter, 146 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:27:52,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 918 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:27:52,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2024-10-24 01:27:53,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 378. [2024-10-24 01:27:53,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 377 states have (on average 1.6923076923076923) internal successors, (638), 377 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:27:53,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 638 transitions. [2024-10-24 01:27:53,008 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 638 transitions. Word has length 119 [2024-10-24 01:27:53,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:27:53,009 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 638 transitions. [2024-10-24 01:27:53,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:27:53,009 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 638 transitions. [2024-10-24 01:27:53,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-24 01:27:53,015 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:27:53,015 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:27:53,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 01:27:53,016 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:27:53,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:27:53,019 INFO L85 PathProgramCache]: Analyzing trace with hash 694490375, now seen corresponding path program 1 times [2024-10-24 01:27:53,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:27:53,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042738655] [2024-10-24 01:27:53,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:27:53,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:27:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:27:53,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:27:53,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:27:53,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042738655] [2024-10-24 01:27:53,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042738655] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:27:53,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:27:53,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:27:53,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537621072] [2024-10-24 01:27:53,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:27:53,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:27:53,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:27:53,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:27:53,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:27:53,289 INFO L87 Difference]: Start difference. First operand 378 states and 638 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:27:53,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:27:53,396 INFO L93 Difference]: Finished difference Result 726 states and 1250 transitions. [2024-10-24 01:27:53,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:27:53,397 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2024-10-24 01:27:53,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:27:53,402 INFO L225 Difference]: With dead ends: 726 [2024-10-24 01:27:53,402 INFO L226 Difference]: Without dead ends: 542 [2024-10-24 01:27:53,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:27:53,408 INFO L432 NwaCegarLoop]: 485 mSDtfsCounter, 147 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:27:53,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 930 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:27:53,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2024-10-24 01:27:53,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 540. [2024-10-24 01:27:53,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 539 states have (on average 1.712430426716141) internal successors, (923), 539 states have internal predecessors, (923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:27:53,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 923 transitions. [2024-10-24 01:27:53,434 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 923 transitions. Word has length 122 [2024-10-24 01:27:53,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:27:53,436 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 923 transitions. [2024-10-24 01:27:53,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:27:53,436 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 923 transitions. [2024-10-24 01:27:53,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-24 01:27:53,438 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:27:53,438 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:27:53,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 01:27:53,439 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:27:53,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:27:53,440 INFO L85 PathProgramCache]: Analyzing trace with hash -668806184, now seen corresponding path program 1 times [2024-10-24 01:27:53,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:27:53,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529461671] [2024-10-24 01:27:53,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:27:53,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:27:53,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:27:53,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:27:53,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:27:53,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529461671] [2024-10-24 01:27:53,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529461671] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:27:53,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:27:53,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:27:53,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273798064] [2024-10-24 01:27:53,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:27:53,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:27:53,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:27:53,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:27:53,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:27:53,620 INFO L87 Difference]: Start difference. First operand 540 states and 923 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:27:53,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:27:53,711 INFO L93 Difference]: Finished difference Result 1192 states and 2069 transitions. [2024-10-24 01:27:53,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:27:53,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-24 01:27:53,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:27:53,717 INFO L225 Difference]: With dead ends: 1192 [2024-10-24 01:27:53,717 INFO L226 Difference]: Without dead ends: 846 [2024-10-24 01:27:53,718 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:27:53,720 INFO L432 NwaCegarLoop]: 485 mSDtfsCounter, 140 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:27:53,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 931 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:27:53,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2024-10-24 01:27:53,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 844. [2024-10-24 01:27:53,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 843 states have (on average 1.7259786476868328) internal successors, (1455), 843 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:27:53,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1455 transitions. [2024-10-24 01:27:53,771 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1455 transitions. Word has length 125 [2024-10-24 01:27:53,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:27:53,772 INFO L471 AbstractCegarLoop]: Abstraction has 844 states and 1455 transitions. [2024-10-24 01:27:53,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:27:53,773 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1455 transitions. [2024-10-24 01:27:53,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-24 01:27:53,777 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:27:53,777 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:27:53,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 01:27:53,778 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:27:53,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:27:53,778 INFO L85 PathProgramCache]: Analyzing trace with hash -590083948, now seen corresponding path program 1 times [2024-10-24 01:27:53,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:27:53,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334055522] [2024-10-24 01:27:53,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:27:53,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:27:53,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:27:53,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:27:53,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:27:53,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334055522] [2024-10-24 01:27:53,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334055522] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:27:53,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:27:53,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:27:53,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434024721] [2024-10-24 01:27:53,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:27:53,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:27:53,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:27:53,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:27:53,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:27:53,932 INFO L87 Difference]: Start difference. First operand 844 states and 1455 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) [2024-10-24 01:27:54,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:27:54,003 INFO L93 Difference]: Finished difference Result 2064 states and 3593 transitions. [2024-10-24 01:27:54,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:27:54,004 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 128 [2024-10-24 01:27:54,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:27:54,013 INFO L225 Difference]: With dead ends: 2064 [2024-10-24 01:27:54,014 INFO L226 Difference]: Without dead ends: 1414 [2024-10-24 01:27:54,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:27:54,016 INFO L432 NwaCegarLoop]: 485 mSDtfsCounter, 133 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:27:54,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 932 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:27:54,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1414 states. [2024-10-24 01:27:54,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1414 to 1412. [2024-10-24 01:27:54,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1412 states, 1411 states have (on average 1.7313961729270022) internal successors, (2443), 1411 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:27:54,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 2443 transitions. [2024-10-24 01:27:54,058 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 2443 transitions. Word has length 128 [2024-10-24 01:27:54,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:27:54,059 INFO L471 AbstractCegarLoop]: Abstraction has 1412 states and 2443 transitions. [2024-10-24 01:27:54,059 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) [2024-10-24 01:27:54,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 2443 transitions. [2024-10-24 01:27:54,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 01:27:54,061 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:27:54,061 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:27:54,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 01:27:54,063 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:27:54,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:27:54,064 INFO L85 PathProgramCache]: Analyzing trace with hash -897181179, now seen corresponding path program 1 times [2024-10-24 01:27:54,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:27:54,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335387018] [2024-10-24 01:27:54,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:27:54,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:27:54,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:27:54,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:27:54,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:27:54,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335387018] [2024-10-24 01:27:54,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335387018] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:27:54,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:27:54,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:27:54,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001411165] [2024-10-24 01:27:54,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:27:54,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:27:54,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:27:54,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:27:54,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:27:54,356 INFO L87 Difference]: Start difference. First operand 1412 states and 2443 transitions. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:27:54,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:27:54,751 INFO L93 Difference]: Finished difference Result 7148 states and 12563 transitions. [2024-10-24 01:27:54,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 01:27:54,752 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2024-10-24 01:27:54,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:27:54,775 INFO L225 Difference]: With dead ends: 7148 [2024-10-24 01:27:54,775 INFO L226 Difference]: Without dead ends: 5930 [2024-10-24 01:27:54,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:27:54,783 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 1386 mSDsluCounter, 3328 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 3807 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:27:54,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 3807 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:27:54,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5930 states. [2024-10-24 01:27:54,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5930 to 2545. [2024-10-24 01:27:54,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2545 states, 2544 states have (on average 1.737814465408805) internal successors, (4421), 2544 states have internal predecessors, (4421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:27:54,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2545 states to 2545 states and 4421 transitions. [2024-10-24 01:27:54,921 INFO L78 Accepts]: Start accepts. Automaton has 2545 states and 4421 transitions. Word has length 131 [2024-10-24 01:27:54,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:27:54,921 INFO L471 AbstractCegarLoop]: Abstraction has 2545 states and 4421 transitions. [2024-10-24 01:27:54,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:27:54,922 INFO L276 IsEmpty]: Start isEmpty. Operand 2545 states and 4421 transitions. [2024-10-24 01:27:54,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-24 01:27:54,927 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:27:54,927 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:27:54,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 01:27:54,927 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:27:54,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:27:54,928 INFO L85 PathProgramCache]: Analyzing trace with hash -2111016382, now seen corresponding path program 1 times [2024-10-24 01:27:54,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:27:54,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745457882] [2024-10-24 01:27:54,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:27:54,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:27:54,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:27:55,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:27:55,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:27:55,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745457882] [2024-10-24 01:27:55,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745457882] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:27:55,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:27:55,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:27:55,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271482608] [2024-10-24 01:27:55,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:27:55,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:27:55,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:27:55,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:27:55,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:27:55,128 INFO L87 Difference]: Start difference. First operand 2545 states and 4421 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:27:55,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:27:55,339 INFO L93 Difference]: Finished difference Result 7390 states and 12950 transitions. [2024-10-24 01:27:55,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:27:55,341 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2024-10-24 01:27:55,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:27:55,360 INFO L225 Difference]: With dead ends: 7390 [2024-10-24 01:27:55,361 INFO L226 Difference]: Without dead ends: 5039 [2024-10-24 01:27:55,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:27:55,370 INFO L432 NwaCegarLoop]: 481 mSDtfsCounter, 506 mSDsluCounter, 958 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 1439 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:27:55,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 1439 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:27:55,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5039 states. [2024-10-24 01:27:55,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5039 to 3775. [2024-10-24 01:27:55,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3775 states, 3774 states have (on average 1.741123476417594) internal successors, (6571), 3774 states have internal predecessors, (6571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:27:55,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3775 states to 3775 states and 6571 transitions. [2024-10-24 01:27:55,493 INFO L78 Accepts]: Start accepts. Automaton has 3775 states and 6571 transitions. Word has length 132 [2024-10-24 01:27:55,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:27:55,494 INFO L471 AbstractCegarLoop]: Abstraction has 3775 states and 6571 transitions. [2024-10-24 01:27:55,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:27:55,495 INFO L276 IsEmpty]: Start isEmpty. Operand 3775 states and 6571 transitions. [2024-10-24 01:27:55,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-24 01:27:55,498 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:27:55,498 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:27:55,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 01:27:55,498 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:27:55,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:27:55,499 INFO L85 PathProgramCache]: Analyzing trace with hash -162840936, now seen corresponding path program 1 times [2024-10-24 01:27:55,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:27:55,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965268398] [2024-10-24 01:27:55,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:27:55,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:27:55,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:27:55,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:27:55,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:27:55,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965268398] [2024-10-24 01:27:55,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965268398] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:27:55,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:27:55,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:27:55,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848221900] [2024-10-24 01:27:55,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:27:55,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:27:55,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:27:55,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:27:55,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:27:55,651 INFO L87 Difference]: Start difference. First operand 3775 states and 6571 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) [2024-10-24 01:27:55,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:27:55,776 INFO L93 Difference]: Finished difference Result 7313 states and 12742 transitions. [2024-10-24 01:27:55,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:27:55,778 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 133 [2024-10-24 01:27:55,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:27:55,801 INFO L225 Difference]: With dead ends: 7313 [2024-10-24 01:27:55,801 INFO L226 Difference]: Without dead ends: 5343 [2024-10-24 01:27:55,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:27:55,806 INFO L432 NwaCegarLoop]: 590 mSDtfsCounter, 148 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:27:55,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 1050 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:27:55,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5343 states. [2024-10-24 01:27:55,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5343 to 5341. [2024-10-24 01:27:55,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5341 states, 5340 states have (on average 1.7333333333333334) internal successors, (9256), 5340 states have internal predecessors, (9256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:27:55,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5341 states to 5341 states and 9256 transitions. [2024-10-24 01:27:55,943 INFO L78 Accepts]: Start accepts. Automaton has 5341 states and 9256 transitions. Word has length 133 [2024-10-24 01:27:55,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:27:55,943 INFO L471 AbstractCegarLoop]: Abstraction has 5341 states and 9256 transitions. [2024-10-24 01:27:55,944 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) [2024-10-24 01:27:55,945 INFO L276 IsEmpty]: Start isEmpty. Operand 5341 states and 9256 transitions. [2024-10-24 01:27:55,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-24 01:27:55,947 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:27:55,947 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:27:55,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 01:27:55,948 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:27:55,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:27:55,948 INFO L85 PathProgramCache]: Analyzing trace with hash -163285454, now seen corresponding path program 1 times [2024-10-24 01:27:55,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:27:55,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323924780] [2024-10-24 01:27:55,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:27:55,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:27:55,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:27:56,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:27:56,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:27:56,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323924780] [2024-10-24 01:27:56,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323924780] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:27:56,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:27:56,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:27:56,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919968425] [2024-10-24 01:27:56,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:27:56,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:27:56,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:27:56,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:27:56,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:27:56,077 INFO L87 Difference]: Start difference. First operand 5341 states and 9256 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) [2024-10-24 01:27:56,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:27:56,198 INFO L93 Difference]: Finished difference Result 10329 states and 17918 transitions. [2024-10-24 01:27:56,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:27:56,199 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 133 [2024-10-24 01:27:56,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:27:56,237 INFO L225 Difference]: With dead ends: 10329 [2024-10-24 01:27:56,238 INFO L226 Difference]: Without dead ends: 7531 [2024-10-24 01:27:56,246 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:27:56,247 INFO L432 NwaCegarLoop]: 574 mSDtfsCounter, 141 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:27:56,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1035 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:27:56,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7531 states. [2024-10-24 01:27:56,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7531 to 7529. [2024-10-24 01:27:56,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7529 states, 7528 states have (on average 1.7250265674814027) internal successors, (12986), 7528 states have internal predecessors, (12986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:27:56,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7529 states to 7529 states and 12986 transitions. [2024-10-24 01:27:56,511 INFO L78 Accepts]: Start accepts. Automaton has 7529 states and 12986 transitions. Word has length 133 [2024-10-24 01:27:56,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:27:56,512 INFO L471 AbstractCegarLoop]: Abstraction has 7529 states and 12986 transitions. [2024-10-24 01:27:56,512 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) [2024-10-24 01:27:56,512 INFO L276 IsEmpty]: Start isEmpty. Operand 7529 states and 12986 transitions. [2024-10-24 01:27:56,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-24 01:27:56,514 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:27:56,514 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:27:56,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 01:27:56,514 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:27:56,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:27:56,515 INFO L85 PathProgramCache]: Analyzing trace with hash 929249240, now seen corresponding path program 1 times [2024-10-24 01:27:56,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:27:56,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159684863] [2024-10-24 01:27:56,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:27:56,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:27:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:27:56,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:27:56,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:27:56,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159684863] [2024-10-24 01:27:56,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159684863] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:27:56,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:27:56,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:27:56,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774255777] [2024-10-24 01:27:56,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:27:56,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:27:56,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:27:56,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:27:56,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:27:56,663 INFO L87 Difference]: Start difference. First operand 7529 states and 12986 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) [2024-10-24 01:27:56,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:27:56,875 INFO L93 Difference]: Finished difference Result 14521 states and 25062 transitions. [2024-10-24 01:27:56,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:27:56,875 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 133 [2024-10-24 01:27:56,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:27:56,981 INFO L225 Difference]: With dead ends: 14521 [2024-10-24 01:27:56,982 INFO L226 Difference]: Without dead ends: 10559 [2024-10-24 01:27:56,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:27:56,988 INFO L432 NwaCegarLoop]: 558 mSDtfsCounter, 134 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:27:56,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1020 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:27:56,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10559 states. [2024-10-24 01:27:57,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10559 to 10557. [2024-10-24 01:27:57,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10557 states, 10556 states have (on average 1.715422508525957) internal successors, (18108), 10556 states have internal predecessors, (18108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:27:57,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10557 states to 10557 states and 18108 transitions. [2024-10-24 01:27:57,291 INFO L78 Accepts]: Start accepts. Automaton has 10557 states and 18108 transitions. Word has length 133 [2024-10-24 01:27:57,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:27:57,292 INFO L471 AbstractCegarLoop]: Abstraction has 10557 states and 18108 transitions. [2024-10-24 01:27:57,293 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) [2024-10-24 01:27:57,293 INFO L276 IsEmpty]: Start isEmpty. Operand 10557 states and 18108 transitions. [2024-10-24 01:27:57,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-24 01:27:57,295 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:27:57,295 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:27:57,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 01:27:57,295 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:27:57,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:27:57,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1079750258, now seen corresponding path program 1 times [2024-10-24 01:27:57,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:27:57,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270214372] [2024-10-24 01:27:57,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:27:57,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:27:57,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:27:57,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:27:57,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:27:57,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270214372] [2024-10-24 01:27:57,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270214372] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:27:57,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:27:57,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:27:57,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645548249] [2024-10-24 01:27:57,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:27:57,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:27:57,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:27:57,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:27:57,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:27:57,469 INFO L87 Difference]: Start difference. First operand 10557 states and 18108 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 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) [2024-10-24 01:27:57,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:27:57,928 INFO L93 Difference]: Finished difference Result 34234 states and 58819 transitions. [2024-10-24 01:27:57,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:27:57,929 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 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 133 [2024-10-24 01:27:57,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:27:57,982 INFO L225 Difference]: With dead ends: 34234 [2024-10-24 01:27:57,982 INFO L226 Difference]: Without dead ends: 23981 [2024-10-24 01:27:58,000 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:27:58,001 INFO L432 NwaCegarLoop]: 476 mSDtfsCounter, 505 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:27:58,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 1557 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:27:58,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23981 states. [2024-10-24 01:27:58,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23981 to 17215. [2024-10-24 01:27:58,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17215 states, 17214 states have (on average 1.707447426513303) internal successors, (29392), 17214 states have internal predecessors, (29392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:27:58,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17215 states to 17215 states and 29392 transitions. [2024-10-24 01:27:58,578 INFO L78 Accepts]: Start accepts. Automaton has 17215 states and 29392 transitions. Word has length 133 [2024-10-24 01:27:58,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:27:58,578 INFO L471 AbstractCegarLoop]: Abstraction has 17215 states and 29392 transitions. [2024-10-24 01:27:58,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 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) [2024-10-24 01:27:58,579 INFO L276 IsEmpty]: Start isEmpty. Operand 17215 states and 29392 transitions. [2024-10-24 01:27:58,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-24 01:27:58,580 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:27:58,581 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:27:58,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 01:27:58,581 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:27:58,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:27:58,582 INFO L85 PathProgramCache]: Analyzing trace with hash 871196208, now seen corresponding path program 1 times [2024-10-24 01:27:58,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:27:58,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434105420] [2024-10-24 01:27:58,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:27:58,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:27:58,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:27:58,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:27:58,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:27:58,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434105420] [2024-10-24 01:27:58,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434105420] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:27:58,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:27:58,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:27:58,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055144460] [2024-10-24 01:27:58,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:27:58,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:27:58,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:27:58,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:27:58,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:27:58,713 INFO L87 Difference]: Start difference. First operand 17215 states and 29392 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) [2024-10-24 01:27:59,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:27:59,224 INFO L93 Difference]: Finished difference Result 38358 states and 65795 transitions. [2024-10-24 01:27:59,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:27:59,225 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 133 [2024-10-24 01:27:59,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:27:59,285 INFO L225 Difference]: With dead ends: 38358 [2024-10-24 01:27:59,286 INFO L226 Difference]: Without dead ends: 26159 [2024-10-24 01:27:59,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:27:59,306 INFO L432 NwaCegarLoop]: 616 mSDtfsCounter, 155 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:27:59,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 1075 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:27:59,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26159 states. [2024-10-24 01:27:59,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26159 to 26157. [2024-10-24 01:27:59,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26157 states, 26156 states have (on average 1.6997629606973543) internal successors, (44459), 26156 states have internal predecessors, (44459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:28:00,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26157 states to 26157 states and 44459 transitions. [2024-10-24 01:28:00,023 INFO L78 Accepts]: Start accepts. Automaton has 26157 states and 44459 transitions. Word has length 133 [2024-10-24 01:28:00,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:28:00,024 INFO L471 AbstractCegarLoop]: Abstraction has 26157 states and 44459 transitions. [2024-10-24 01:28:00,024 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) [2024-10-24 01:28:00,024 INFO L276 IsEmpty]: Start isEmpty. Operand 26157 states and 44459 transitions. [2024-10-24 01:28:00,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-24 01:28:00,026 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:28:00,026 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:28:00,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 01:28:00,026 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:28:00,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:28:00,027 INFO L85 PathProgramCache]: Analyzing trace with hash 830180267, now seen corresponding path program 1 times [2024-10-24 01:28:00,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:28:00,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109196645] [2024-10-24 01:28:00,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:28:00,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:28:00,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:28:00,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:28:00,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:28:00,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109196645] [2024-10-24 01:28:00,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109196645] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:28:00,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:28:00,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:28:00,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675567987] [2024-10-24 01:28:00,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:28:00,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:28:00,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:28:00,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:28:00,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:28:00,362 INFO L87 Difference]: Start difference. First operand 26157 states and 44459 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:28:01,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:28:01,194 INFO L93 Difference]: Finished difference Result 85492 states and 145420 transitions. [2024-10-24 01:28:01,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:28:01,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2024-10-24 01:28:01,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:28:01,351 INFO L225 Difference]: With dead ends: 85492 [2024-10-24 01:28:01,352 INFO L226 Difference]: Without dead ends: 59561 [2024-10-24 01:28:01,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:28:01,545 INFO L432 NwaCegarLoop]: 476 mSDtfsCounter, 503 mSDsluCounter, 1083 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 1559 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:28:01,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 1559 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:28:01,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59561 states. [2024-10-24 01:28:02,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59561 to 42716. [2024-10-24 01:28:02,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42716 states, 42715 states have (on average 1.6899449841975887) internal successors, (72186), 42715 states have internal predecessors, (72186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:28:02,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42716 states to 42716 states and 72186 transitions. [2024-10-24 01:28:02,899 INFO L78 Accepts]: Start accepts. Automaton has 42716 states and 72186 transitions. Word has length 134 [2024-10-24 01:28:02,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:28:02,900 INFO L471 AbstractCegarLoop]: Abstraction has 42716 states and 72186 transitions. [2024-10-24 01:28:02,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:28:02,900 INFO L276 IsEmpty]: Start isEmpty. Operand 42716 states and 72186 transitions. [2024-10-24 01:28:02,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-24 01:28:02,901 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:28:02,902 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:28:02,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 01:28:02,902 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:28:02,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:28:02,903 INFO L85 PathProgramCache]: Analyzing trace with hash -86063849, now seen corresponding path program 1 times [2024-10-24 01:28:02,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:28:02,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112349004] [2024-10-24 01:28:02,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:28:02,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:28:03,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:28:03,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:28:03,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:28:03,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112349004] [2024-10-24 01:28:03,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112349004] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:28:03,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:28:03,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:28:03,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111236573] [2024-10-24 01:28:03,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:28:03,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:28:03,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:28:03,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:28:03,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:28:03,273 INFO L87 Difference]: Start difference. First operand 42716 states and 72186 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:28:04,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:28:04,828 INFO L93 Difference]: Finished difference Result 138054 states and 233478 transitions. [2024-10-24 01:28:04,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:28:04,828 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 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 135 [2024-10-24 01:28:04,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:28:05,152 INFO L225 Difference]: With dead ends: 138054 [2024-10-24 01:28:05,152 INFO L226 Difference]: Without dead ends: 95564 [2024-10-24 01:28:05,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:28:05,210 INFO L432 NwaCegarLoop]: 476 mSDtfsCounter, 501 mSDsluCounter, 1085 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:28:05,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 1561 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:28:05,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95564 states. [2024-10-24 01:28:06,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95564 to 68915. [2024-10-24 01:28:06,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68915 states, 68914 states have (on average 1.680427779551325) internal successors, (115805), 68914 states have internal predecessors, (115805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:28:07,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68915 states to 68915 states and 115805 transitions. [2024-10-24 01:28:07,153 INFO L78 Accepts]: Start accepts. Automaton has 68915 states and 115805 transitions. Word has length 135 [2024-10-24 01:28:07,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:28:07,154 INFO L471 AbstractCegarLoop]: Abstraction has 68915 states and 115805 transitions. [2024-10-24 01:28:07,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:28:07,154 INFO L276 IsEmpty]: Start isEmpty. Operand 68915 states and 115805 transitions. [2024-10-24 01:28:07,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-24 01:28:07,156 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:28:07,156 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:28:07,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 01:28:07,156 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:28:07,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:28:07,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1714684095, now seen corresponding path program 1 times [2024-10-24 01:28:07,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:28:07,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832656711] [2024-10-24 01:28:07,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:28:07,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:28:07,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:28:07,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:28:07,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:28:07,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832656711] [2024-10-24 01:28:07,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832656711] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:28:07,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:28:07,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:28:07,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874521206] [2024-10-24 01:28:07,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:28:07,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:28:07,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:28:07,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:28:07,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:28:07,906 INFO L87 Difference]: Start difference. First operand 68915 states and 115805 transitions. Second operand has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:28:09,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:28:09,055 INFO L93 Difference]: Finished difference Result 137606 states and 231247 transitions. [2024-10-24 01:28:09,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:28:09,056 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2024-10-24 01:28:09,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:28:09,225 INFO L225 Difference]: With dead ends: 137606 [2024-10-24 01:28:09,225 INFO L226 Difference]: Without dead ends: 68917 [2024-10-24 01:28:09,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-10-24 01:28:09,291 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 271 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 1833 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:28:09,291 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 1833 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:28:09,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68917 states. [2024-10-24 01:28:10,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68917 to 68915. [2024-10-24 01:28:10,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68915 states, 68914 states have (on average 1.671358504803088) internal successors, (115180), 68914 states have internal predecessors, (115180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:28:10,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68915 states to 68915 states and 115180 transitions. [2024-10-24 01:28:10,960 INFO L78 Accepts]: Start accepts. Automaton has 68915 states and 115180 transitions. Word has length 137 [2024-10-24 01:28:10,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:28:10,961 INFO L471 AbstractCegarLoop]: Abstraction has 68915 states and 115180 transitions. [2024-10-24 01:28:10,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:28:10,961 INFO L276 IsEmpty]: Start isEmpty. Operand 68915 states and 115180 transitions. [2024-10-24 01:28:10,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-24 01:28:10,963 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:28:10,963 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:28:10,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 01:28:10,963 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:28:10,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:28:10,964 INFO L85 PathProgramCache]: Analyzing trace with hash 611550920, now seen corresponding path program 1 times [2024-10-24 01:28:10,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:28:10,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624269074] [2024-10-24 01:28:10,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:28:10,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:28:11,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:28:11,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:28:11,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:28:11,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624269074] [2024-10-24 01:28:11,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624269074] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:28:11,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:28:11,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:28:11,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771208213] [2024-10-24 01:28:11,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:28:11,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:28:11,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:28:11,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:28:11,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:28:11,705 INFO L87 Difference]: Start difference. First operand 68915 states and 115180 transitions. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:28:13,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:28:13,032 INFO L93 Difference]: Finished difference Result 201524 states and 337235 transitions. [2024-10-24 01:28:13,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:28:13,033 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2024-10-24 01:28:13,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:28:13,311 INFO L225 Difference]: With dead ends: 201524 [2024-10-24 01:28:13,311 INFO L226 Difference]: Without dead ends: 132835 [2024-10-24 01:28:13,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-10-24 01:28:13,619 INFO L432 NwaCegarLoop]: 475 mSDtfsCounter, 135 mSDsluCounter, 1828 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 2303 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:28:13,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 2303 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:28:13,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132835 states. [2024-10-24 01:28:16,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132835 to 132833. [2024-10-24 01:28:16,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132833 states, 132832 states have (on average 1.6592462659600096) internal successors, (220401), 132832 states have internal predecessors, (220401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:28:16,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132833 states to 132833 states and 220401 transitions. [2024-10-24 01:28:16,591 INFO L78 Accepts]: Start accepts. Automaton has 132833 states and 220401 transitions. Word has length 140 [2024-10-24 01:28:16,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:28:16,592 INFO L471 AbstractCegarLoop]: Abstraction has 132833 states and 220401 transitions. [2024-10-24 01:28:16,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:28:16,593 INFO L276 IsEmpty]: Start isEmpty. Operand 132833 states and 220401 transitions. [2024-10-24 01:28:16,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 01:28:16,593 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:28:16,594 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:28:16,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 01:28:16,594 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:28:16,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:28:16,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1763659318, now seen corresponding path program 1 times [2024-10-24 01:28:16,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:28:16,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897833522] [2024-10-24 01:28:16,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:28:16,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:28:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:28:17,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:28:17,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:28:17,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897833522] [2024-10-24 01:28:17,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897833522] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:28:17,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:28:17,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:28:17,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146774364] [2024-10-24 01:28:17,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:28:17,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:28:17,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:28:17,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:28:17,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:28:17,561 INFO L87 Difference]: Start difference. First operand 132833 states and 220401 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:28:18,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:28:18,705 INFO L93 Difference]: Finished difference Result 136707 states and 226210 transitions. [2024-10-24 01:28:18,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:28:18,705 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 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 141 [2024-10-24 01:28:18,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:28:18,943 INFO L225 Difference]: With dead ends: 136707 [2024-10-24 01:28:18,943 INFO L226 Difference]: Without dead ends: 136705 [2024-10-24 01:28:18,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:28:18,979 INFO L432 NwaCegarLoop]: 485 mSDtfsCounter, 0 mSDsluCounter, 1924 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2409 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:28:18,979 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2409 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:28:19,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136705 states. [2024-10-24 01:28:21,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136705 to 136705. [2024-10-24 01:28:21,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136705 states, 136704 states have (on average 1.6403762874531835) internal successors, (224246), 136704 states have internal predecessors, (224246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:28:21,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136705 states to 136705 states and 224246 transitions. [2024-10-24 01:28:21,657 INFO L78 Accepts]: Start accepts. Automaton has 136705 states and 224246 transitions. Word has length 141 [2024-10-24 01:28:21,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:28:21,658 INFO L471 AbstractCegarLoop]: Abstraction has 136705 states and 224246 transitions. [2024-10-24 01:28:21,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:28:21,658 INFO L276 IsEmpty]: Start isEmpty. Operand 136705 states and 224246 transitions. [2024-10-24 01:28:21,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-24 01:28:21,664 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:28:21,664 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:28:21,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 01:28:21,665 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:28:21,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:28:21,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1322577594, now seen corresponding path program 1 times [2024-10-24 01:28:21,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:28:21,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063233060] [2024-10-24 01:28:21,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:28:21,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:28:21,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:28:22,489 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-24 01:28:22,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:28:22,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063233060] [2024-10-24 01:28:22,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063233060] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:28:22,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:28:22,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:28:22,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343820853] [2024-10-24 01:28:22,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:28:22,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:28:22,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:28:22,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:28:22,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:28:22,493 INFO L87 Difference]: Start difference. First operand 136705 states and 224246 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:28:25,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:28:25,330 INFO L93 Difference]: Finished difference Result 375707 states and 617679 transitions. [2024-10-24 01:28:25,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:28:25,331 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 0 states have call successors, (0), 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 176 [2024-10-24 01:28:25,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:28:26,053 INFO L225 Difference]: With dead ends: 375707 [2024-10-24 01:28:26,053 INFO L226 Difference]: Without dead ends: 315055 [2024-10-24 01:28:26,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:28:26,572 INFO L432 NwaCegarLoop]: 648 mSDtfsCounter, 1017 mSDsluCounter, 2155 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1017 SdHoareTripleChecker+Valid, 2803 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:28:26,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1017 Valid, 2803 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:28:26,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315055 states. [2024-10-24 01:28:30,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315055 to 220333. [2024-10-24 01:28:31,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220333 states, 220332 states have (on average 1.6372111177677324) internal successors, (360730), 220332 states have internal predecessors, (360730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:28:32,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220333 states to 220333 states and 360730 transitions. [2024-10-24 01:28:32,086 INFO L78 Accepts]: Start accepts. Automaton has 220333 states and 360730 transitions. Word has length 176 [2024-10-24 01:28:32,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:28:32,086 INFO L471 AbstractCegarLoop]: Abstraction has 220333 states and 360730 transitions. [2024-10-24 01:28:32,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:28:32,087 INFO L276 IsEmpty]: Start isEmpty. Operand 220333 states and 360730 transitions. [2024-10-24 01:28:32,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-24 01:28:32,092 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:28:32,092 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:28:32,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 01:28:32,092 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:28:32,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:28:32,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1322133076, now seen corresponding path program 1 times [2024-10-24 01:28:32,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:28:32,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143636916] [2024-10-24 01:28:32,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:28:32,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:28:32,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:28:32,364 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-24 01:28:32,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:28:32,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143636916] [2024-10-24 01:28:32,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143636916] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:28:32,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:28:32,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:28:32,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241805997] [2024-10-24 01:28:32,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:28:32,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:28:32,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:28:32,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:28:32,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:28:32,367 INFO L87 Difference]: Start difference. First operand 220333 states and 360730 transitions. Second operand has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:28:35,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:28:35,950 INFO L93 Difference]: Finished difference Result 414715 states and 681915 transitions. [2024-10-24 01:28:35,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:28:35,951 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2024-10-24 01:28:35,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:28:36,765 INFO L225 Difference]: With dead ends: 414715 [2024-10-24 01:28:36,765 INFO L226 Difference]: Without dead ends: 354063 [2024-10-24 01:28:36,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:28:36,888 INFO L432 NwaCegarLoop]: 645 mSDtfsCounter, 1086 mSDsluCounter, 1742 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 2387 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:28:36,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1086 Valid, 2387 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:28:37,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354063 states. [2024-10-24 01:28:42,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354063 to 298771. [2024-10-24 01:28:43,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298771 states, 298770 states have (on average 1.637480336044449) internal successors, (489230), 298770 states have internal predecessors, (489230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:28:43,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298771 states to 298771 states and 489230 transitions.