./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label02.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 2046fa69fcebe8f4159e2d29632b696c65fee77505bcacf51c3fef7658ce336a --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 17:10:54,018 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:10:54,087 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 17:10:54,093 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:10:54,095 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:10:54,112 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:10:54,112 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:10:54,112 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:10:54,113 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:10:54,113 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:10:54,113 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:10:54,113 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:10:54,114 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:10:54,114 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:10:54,114 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:10:54,114 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:10:54,115 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:10:54,115 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:10:54,115 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:10:54,115 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:10:54,116 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:10:54,118 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:10:54,119 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:10:54,119 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:10:54,119 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:10:54,119 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:10:54,119 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:10:54,120 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:10:54,120 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:10:54,120 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:10:54,120 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:10:54,120 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:10:54,120 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:10:54,121 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:10:54,121 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:10:54,121 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:10:54,121 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:10:54,121 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:10:54,121 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:10:54,122 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:10:54,122 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:10:54,122 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:10:54,122 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2046fa69fcebe8f4159e2d29632b696c65fee77505bcacf51c3fef7658ce336a [2024-11-08 17:10:54,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:10:54,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:10:54,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:10:54,339 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:10:54,339 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:10:54,340 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label02.c [2024-11-08 17:10:55,526 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:10:55,898 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:10:55,899 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label02.c [2024-11-08 17:10:55,926 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b06c5990d/5e510b13a10b4062909fa547681aaadc/FLAGe5c222d49 [2024-11-08 17:10:55,953 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b06c5990d/5e510b13a10b4062909fa547681aaadc [2024-11-08 17:10:55,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:10:55,956 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:10:55,957 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:10:55,958 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:10:55,962 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:10:55,963 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:10:55" (1/1) ... [2024-11-08 17:10:55,964 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@620789bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:55, skipping insertion in model container [2024-11-08 17:10:55,964 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:10:55" (1/1) ... [2024-11-08 17:10:56,041 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:10:56,354 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label02.c[26860,26873] [2024-11-08 17:10:56,419 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label02.c[34150,34163] [2024-11-08 17:10:56,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:10:56,963 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:10:57,015 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label02.c[26860,26873] [2024-11-08 17:10:57,029 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label02.c[34150,34163] [2024-11-08 17:10:57,363 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:10:57,391 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:10:57,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:57 WrapperNode [2024-11-08 17:10:57,391 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:10:57,392 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:10:57,392 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:10:57,392 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:10:57,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:57" (1/1) ... [2024-11-08 17:10:57,444 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:57" (1/1) ... [2024-11-08 17:10:57,659 INFO L138 Inliner]: procedures = 39, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5293 [2024-11-08 17:10:57,659 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:10:57,660 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:10:57,661 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:10:57,661 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:10:57,670 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:57" (1/1) ... [2024-11-08 17:10:57,671 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:57" (1/1) ... [2024-11-08 17:10:57,712 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:57" (1/1) ... [2024-11-08 17:10:57,883 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 17:10:57,883 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:57" (1/1) ... [2024-11-08 17:10:57,883 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:57" (1/1) ... [2024-11-08 17:10:57,976 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:57" (1/1) ... [2024-11-08 17:10:57,994 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:57" (1/1) ... [2024-11-08 17:10:58,016 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:57" (1/1) ... [2024-11-08 17:10:58,033 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:57" (1/1) ... [2024-11-08 17:10:58,128 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:10:58,129 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:10:58,130 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:10:58,130 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:10:58,131 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:57" (1/1) ... [2024-11-08 17:10:58,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:10:58,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 17:10:58,158 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:10:58,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:10:58,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:10:58,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:10:58,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:10:58,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:10:58,324 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:10:58,326 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:11:01,596 INFO L? ?]: Removed 759 outVars from TransFormulas that were not future-live. [2024-11-08 17:11:01,596 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:11:01,651 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:11:01,652 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 17:11:01,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:11:01 BoogieIcfgContainer [2024-11-08 17:11:01,652 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:11:01,654 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:11:01,654 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:11:01,661 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:11:01,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:10:55" (1/3) ... [2024-11-08 17:11:01,662 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0f5a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:11:01, skipping insertion in model container [2024-11-08 17:11:01,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:57" (2/3) ... [2024-11-08 17:11:01,662 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0f5a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:11:01, skipping insertion in model container [2024-11-08 17:11:01,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:11:01" (3/3) ... [2024-11-08 17:11:01,663 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label02.c [2024-11-08 17:11:01,678 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:11:01,678 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 17:11:01,762 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:11:01,768 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;@4bda5d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:11:01,768 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 17:11:01,780 INFO L276 IsEmpty]: Start isEmpty. Operand has 947 states, 944 states have (on average 1.9036016949152543) internal successors, (1797), 946 states have internal predecessors, (1797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:01,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-08 17:11:01,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:01,788 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] [2024-11-08 17:11:01,788 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:01,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:01,792 INFO L85 PathProgramCache]: Analyzing trace with hash -60564882, now seen corresponding path program 1 times [2024-11-08 17:11:01,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:01,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403761110] [2024-11-08 17:11:01,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:01,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:01,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:02,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:11:02,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:02,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403761110] [2024-11-08 17:11:02,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403761110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:02,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:02,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:11:02,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822762801] [2024-11-08 17:11:02,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:02,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 17:11:02,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:02,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 17:11:02,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:11:02,116 INFO L87 Difference]: Start difference. First operand has 947 states, 944 states have (on average 1.9036016949152543) internal successors, (1797), 946 states have internal predecessors, (1797), 0 states have call successors, (0), 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 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:02,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:02,185 INFO L93 Difference]: Finished difference Result 1827 states and 3464 transitions. [2024-11-08 17:11:02,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 17:11:02,187 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2024-11-08 17:11:02,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:02,206 INFO L225 Difference]: With dead ends: 1827 [2024-11-08 17:11:02,206 INFO L226 Difference]: Without dead ends: 881 [2024-11-08 17:11:02,213 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 [2024-11-08 17:11:02,217 INFO L432 NwaCegarLoop]: 1731 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1731 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:11:02,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:11:02,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2024-11-08 17:11:02,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 881. [2024-11-08 17:11:02,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 879 states have (on average 1.8930602957906713) internal successors, (1664), 880 states have internal predecessors, (1664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:02,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1664 transitions. [2024-11-08 17:11:02,280 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1664 transitions. Word has length 30 [2024-11-08 17:11:02,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:02,280 INFO L471 AbstractCegarLoop]: Abstraction has 881 states and 1664 transitions. [2024-11-08 17:11:02,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:02,281 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1664 transitions. [2024-11-08 17:11:02,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-08 17:11:02,282 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:02,282 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] [2024-11-08 17:11:02,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:11:02,282 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:02,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:02,283 INFO L85 PathProgramCache]: Analyzing trace with hash -194578388, now seen corresponding path program 1 times [2024-11-08 17:11:02,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:02,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322243374] [2024-11-08 17:11:02,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:02,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:02,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:02,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:11:02,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:02,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322243374] [2024-11-08 17:11:02,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322243374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:02,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:02,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:11:02,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130839984] [2024-11-08 17:11:02,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:02,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:11:02,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:02,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:11:02,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:11:02,503 INFO L87 Difference]: Start difference. First operand 881 states and 1664 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:02,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:02,622 INFO L93 Difference]: Finished difference Result 945 states and 1765 transitions. [2024-11-08 17:11:02,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:11:02,623 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2024-11-08 17:11:02,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:02,626 INFO L225 Difference]: With dead ends: 945 [2024-11-08 17:11:02,626 INFO L226 Difference]: Without dead ends: 881 [2024-11-08 17:11:02,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:11:02,628 INFO L432 NwaCegarLoop]: 1662 mSDtfsCounter, 0 mSDsluCounter, 4920 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6582 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:11:02,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6582 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:11:02,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2024-11-08 17:11:02,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 881. [2024-11-08 17:11:02,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 879 states have (on average 1.8236632536973834) internal successors, (1603), 880 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:02,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1603 transitions. [2024-11-08 17:11:02,653 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1603 transitions. Word has length 30 [2024-11-08 17:11:02,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:02,654 INFO L471 AbstractCegarLoop]: Abstraction has 881 states and 1603 transitions. [2024-11-08 17:11:02,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:02,654 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1603 transitions. [2024-11-08 17:11:02,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-08 17:11:02,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:02,656 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] [2024-11-08 17:11:02,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:11:02,657 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:02,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:02,659 INFO L85 PathProgramCache]: Analyzing trace with hash -742925044, now seen corresponding path program 1 times [2024-11-08 17:11:02,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:02,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961837157] [2024-11-08 17:11:02,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:02,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:02,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:02,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:11:02,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:02,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961837157] [2024-11-08 17:11:02,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961837157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:02,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:02,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:11:02,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790930543] [2024-11-08 17:11:02,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:02,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:11:02,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:02,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:11:02,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:11:02,867 INFO L87 Difference]: Start difference. First operand 881 states and 1603 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:07,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:07,791 INFO L93 Difference]: Finished difference Result 3136 states and 5912 transitions. [2024-11-08 17:11:07,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:11:07,792 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-08 17:11:07,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:07,798 INFO L225 Difference]: With dead ends: 3136 [2024-11-08 17:11:07,798 INFO L226 Difference]: Without dead ends: 2383 [2024-11-08 17:11:07,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:11:07,800 INFO L432 NwaCegarLoop]: 857 mSDtfsCounter, 2503 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5518 mSolverCounterSat, 1100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2503 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 6618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1100 IncrementalHoareTripleChecker+Valid, 5518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:11:07,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2503 Valid, 875 Invalid, 6618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1100 Valid, 5518 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-08 17:11:07,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2383 states. [2024-11-08 17:11:07,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2383 to 2383. [2024-11-08 17:11:07,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2383 states, 2381 states have (on average 1.5661486770264594) internal successors, (3729), 2382 states have internal predecessors, (3729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:07,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2383 states to 2383 states and 3729 transitions. [2024-11-08 17:11:07,829 INFO L78 Accepts]: Start accepts. Automaton has 2383 states and 3729 transitions. Word has length 63 [2024-11-08 17:11:07,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:07,829 INFO L471 AbstractCegarLoop]: Abstraction has 2383 states and 3729 transitions. [2024-11-08 17:11:07,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:07,829 INFO L276 IsEmpty]: Start isEmpty. Operand 2383 states and 3729 transitions. [2024-11-08 17:11:07,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-08 17:11:07,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:07,832 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:11:07,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:11:07,832 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:07,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:07,832 INFO L85 PathProgramCache]: Analyzing trace with hash 255619932, now seen corresponding path program 1 times [2024-11-08 17:11:07,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:07,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843891554] [2024-11-08 17:11:07,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:07,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:07,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:08,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:11:08,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:08,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843891554] [2024-11-08 17:11:08,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843891554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:08,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:08,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 17:11:08,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797518756] [2024-11-08 17:11:08,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:08,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:11:08,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:08,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:11:08,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:11:08,101 INFO L87 Difference]: Start difference. First operand 2383 states and 3729 transitions. Second operand has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:08,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:08,497 INFO L93 Difference]: Finished difference Result 3343 states and 5281 transitions. [2024-11-08 17:11:08,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 17:11:08,498 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2024-11-08 17:11:08,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:08,508 INFO L225 Difference]: With dead ends: 3343 [2024-11-08 17:11:08,509 INFO L226 Difference]: Without dead ends: 3283 [2024-11-08 17:11:08,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-11-08 17:11:08,513 INFO L432 NwaCegarLoop]: 1599 mSDtfsCounter, 13373 mSDsluCounter, 4789 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13373 SdHoareTripleChecker+Valid, 6388 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:11:08,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13373 Valid, 6388 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:11:08,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3283 states. [2024-11-08 17:11:08,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3283 to 2441. [2024-11-08 17:11:08,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2441 states, 2439 states have (on average 1.5674456744567447) internal successors, (3823), 2440 states have internal predecessors, (3823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:08,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2441 states to 2441 states and 3823 transitions. [2024-11-08 17:11:08,556 INFO L78 Accepts]: Start accepts. Automaton has 2441 states and 3823 transitions. Word has length 90 [2024-11-08 17:11:08,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:08,557 INFO L471 AbstractCegarLoop]: Abstraction has 2441 states and 3823 transitions. [2024-11-08 17:11:08,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:08,557 INFO L276 IsEmpty]: Start isEmpty. Operand 2441 states and 3823 transitions. [2024-11-08 17:11:08,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 17:11:08,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:08,561 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] [2024-11-08 17:11:08,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:11:08,562 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:08,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:08,563 INFO L85 PathProgramCache]: Analyzing trace with hash -578069748, now seen corresponding path program 1 times [2024-11-08 17:11:08,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:08,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573005357] [2024-11-08 17:11:08,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:08,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:08,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:11:08,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:08,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573005357] [2024-11-08 17:11:08,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573005357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:08,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:08,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:11:08,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411088765] [2024-11-08 17:11:08,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:08,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:11:08,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:08,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:11:08,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:11:08,659 INFO L87 Difference]: Start difference. First operand 2441 states and 3823 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:08,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:08,684 INFO L93 Difference]: Finished difference Result 2666 states and 4186 transitions. [2024-11-08 17:11:08,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:11:08,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-11-08 17:11:08,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:08,691 INFO L225 Difference]: With dead ends: 2666 [2024-11-08 17:11:08,691 INFO L226 Difference]: Without dead ends: 2548 [2024-11-08 17:11:08,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:11:08,692 INFO L432 NwaCegarLoop]: 1601 mSDtfsCounter, 1506 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1693 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 [2024-11-08 17:11:08,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1693 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:11:08,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2548 states. [2024-11-08 17:11:08,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2548 to 2546. [2024-11-08 17:11:08,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2546 states, 2544 states have (on average 1.5687893081761006) internal successors, (3991), 2545 states have internal predecessors, (3991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:08,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2546 states to 2546 states and 3991 transitions. [2024-11-08 17:11:08,725 INFO L78 Accepts]: Start accepts. Automaton has 2546 states and 3991 transitions. Word has length 92 [2024-11-08 17:11:08,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:08,725 INFO L471 AbstractCegarLoop]: Abstraction has 2546 states and 3991 transitions. [2024-11-08 17:11:08,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:08,726 INFO L276 IsEmpty]: Start isEmpty. Operand 2546 states and 3991 transitions. [2024-11-08 17:11:08,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 17:11:08,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:08,727 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] [2024-11-08 17:11:08,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:11:08,727 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:08,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:08,728 INFO L85 PathProgramCache]: Analyzing trace with hash -511576236, now seen corresponding path program 1 times [2024-11-08 17:11:08,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:08,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341247796] [2024-11-08 17:11:08,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:08,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:08,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:09,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:11:09,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:09,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341247796] [2024-11-08 17:11:09,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341247796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:09,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:09,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 17:11:09,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499694565] [2024-11-08 17:11:09,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:09,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:11:09,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:09,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:11:09,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:11:09,109 INFO L87 Difference]: Start difference. First operand 2546 states and 3991 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:09,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:09,451 INFO L93 Difference]: Finished difference Result 2771 states and 4351 transitions. [2024-11-08 17:11:09,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:11:09,451 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-11-08 17:11:09,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:09,457 INFO L225 Difference]: With dead ends: 2771 [2024-11-08 17:11:09,457 INFO L226 Difference]: Without dead ends: 2548 [2024-11-08 17:11:09,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-11-08 17:11:09,459 INFO L432 NwaCegarLoop]: 1593 mSDtfsCounter, 4602 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4602 SdHoareTripleChecker+Valid, 2260 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:11:09,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4602 Valid, 2260 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:11:09,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2548 states. [2024-11-08 17:11:09,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2548 to 2546. [2024-11-08 17:11:09,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2546 states, 2544 states have (on average 1.568003144654088) internal successors, (3989), 2545 states have internal predecessors, (3989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:09,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2546 states to 2546 states and 3989 transitions. [2024-11-08 17:11:09,491 INFO L78 Accepts]: Start accepts. Automaton has 2546 states and 3989 transitions. Word has length 92 [2024-11-08 17:11:09,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:09,491 INFO L471 AbstractCegarLoop]: Abstraction has 2546 states and 3989 transitions. [2024-11-08 17:11:09,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:09,492 INFO L276 IsEmpty]: Start isEmpty. Operand 2546 states and 3989 transitions. [2024-11-08 17:11:09,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 17:11:09,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:09,493 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] [2024-11-08 17:11:09,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:11:09,493 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:09,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:09,493 INFO L85 PathProgramCache]: Analyzing trace with hash 906283047, now seen corresponding path program 1 times [2024-11-08 17:11:09,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:09,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796194554] [2024-11-08 17:11:09,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:09,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:09,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:09,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:11:09,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:09,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796194554] [2024-11-08 17:11:09,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796194554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:09,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:09,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:11:09,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108321724] [2024-11-08 17:11:09,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:09,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:11:09,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:09,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:11:09,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:11:09,715 INFO L87 Difference]: Start difference. First operand 2546 states and 3989 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:09,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:09,747 INFO L93 Difference]: Finished difference Result 2554 states and 3998 transitions. [2024-11-08 17:11:09,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:11:09,748 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-11-08 17:11:09,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:09,754 INFO L225 Difference]: With dead ends: 2554 [2024-11-08 17:11:09,754 INFO L226 Difference]: Without dead ends: 2552 [2024-11-08 17:11:09,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:11:09,757 INFO L432 NwaCegarLoop]: 1600 mSDtfsCounter, 0 mSDsluCounter, 4791 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6391 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:11:09,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6391 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:11:09,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2552 states. [2024-11-08 17:11:09,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2552 to 2552. [2024-11-08 17:11:09,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2552 states, 2550 states have (on average 1.5662745098039215) internal successors, (3994), 2551 states have internal predecessors, (3994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:09,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2552 states to 2552 states and 3994 transitions. [2024-11-08 17:11:09,789 INFO L78 Accepts]: Start accepts. Automaton has 2552 states and 3994 transitions. Word has length 93 [2024-11-08 17:11:09,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:09,789 INFO L471 AbstractCegarLoop]: Abstraction has 2552 states and 3994 transitions. [2024-11-08 17:11:09,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:09,789 INFO L276 IsEmpty]: Start isEmpty. Operand 2552 states and 3994 transitions. [2024-11-08 17:11:09,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:11:09,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:09,790 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] [2024-11-08 17:11:09,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 17:11:09,791 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:09,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:09,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1719553388, now seen corresponding path program 1 times [2024-11-08 17:11:09,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:09,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825368227] [2024-11-08 17:11:09,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:09,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:09,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:09,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:11:09,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:09,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825368227] [2024-11-08 17:11:09,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825368227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:09,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:09,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:11:09,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021920900] [2024-11-08 17:11:09,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:09,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:11:09,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:09,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:11:09,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:11:09,866 INFO L87 Difference]: Start difference. First operand 2552 states and 3994 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:09,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:09,901 INFO L93 Difference]: Finished difference Result 2794 states and 4375 transitions. [2024-11-08 17:11:09,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:11:09,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-08 17:11:09,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:09,908 INFO L225 Difference]: With dead ends: 2794 [2024-11-08 17:11:09,908 INFO L226 Difference]: Without dead ends: 2670 [2024-11-08 17:11:09,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:11:09,910 INFO L432 NwaCegarLoop]: 1685 mSDtfsCounter, 1526 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 1783 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:11:09,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 1783 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:11:09,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2670 states. [2024-11-08 17:11:09,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2670 to 2668. [2024-11-08 17:11:09,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2668 states, 2666 states have (on average 1.5660165041260314) internal successors, (4175), 2667 states have internal predecessors, (4175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:09,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2668 states to 2668 states and 4175 transitions. [2024-11-08 17:11:09,944 INFO L78 Accepts]: Start accepts. Automaton has 2668 states and 4175 transitions. Word has length 94 [2024-11-08 17:11:09,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:09,945 INFO L471 AbstractCegarLoop]: Abstraction has 2668 states and 4175 transitions. [2024-11-08 17:11:09,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:09,945 INFO L276 IsEmpty]: Start isEmpty. Operand 2668 states and 4175 transitions. [2024-11-08 17:11:09,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:11:09,945 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:09,945 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] [2024-11-08 17:11:09,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:11:09,946 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:09,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:09,946 INFO L85 PathProgramCache]: Analyzing trace with hash 593433492, now seen corresponding path program 1 times [2024-11-08 17:11:09,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:09,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704260647] [2024-11-08 17:11:09,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:09,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:09,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:10,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:11:10,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:10,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704260647] [2024-11-08 17:11:10,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704260647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:10,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:10,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:11:10,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243506790] [2024-11-08 17:11:10,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:10,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:11:10,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:10,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:11:10,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:11:10,019 INFO L87 Difference]: Start difference. First operand 2668 states and 4175 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:10,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:10,050 INFO L93 Difference]: Finished difference Result 3330 states and 5215 transitions. [2024-11-08 17:11:10,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:11:10,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-08 17:11:10,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:10,058 INFO L225 Difference]: With dead ends: 3330 [2024-11-08 17:11:10,058 INFO L226 Difference]: Without dead ends: 2987 [2024-11-08 17:11:10,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:11:10,059 INFO L432 NwaCegarLoop]: 1687 mSDtfsCounter, 1524 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:11:10,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 1789 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:11:10,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2987 states. [2024-11-08 17:11:10,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2987 to 2985. [2024-11-08 17:11:10,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2985 states, 2983 states have (on average 1.5645323499832384) internal successors, (4667), 2984 states have internal predecessors, (4667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:10,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2985 states to 2985 states and 4667 transitions. [2024-11-08 17:11:10,095 INFO L78 Accepts]: Start accepts. Automaton has 2985 states and 4667 transitions. Word has length 94 [2024-11-08 17:11:10,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:10,095 INFO L471 AbstractCegarLoop]: Abstraction has 2985 states and 4667 transitions. [2024-11-08 17:11:10,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:10,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2985 states and 4667 transitions. [2024-11-08 17:11:10,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:11:10,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:10,096 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] [2024-11-08 17:11:10,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 17:11:10,096 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:10,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:10,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1596549740, now seen corresponding path program 1 times [2024-11-08 17:11:10,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:10,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299475477] [2024-11-08 17:11:10,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:10,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:10,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:10,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:11:10,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:10,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299475477] [2024-11-08 17:11:10,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299475477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:10,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:10,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:11:10,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014726538] [2024-11-08 17:11:10,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:10,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:11:10,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:10,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:11:10,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:11:10,158 INFO L87 Difference]: Start difference. First operand 2985 states and 4667 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:10,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:10,224 INFO L93 Difference]: Finished difference Result 4257 states and 6649 transitions. [2024-11-08 17:11:10,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:11:10,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-08 17:11:10,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:10,233 INFO L225 Difference]: With dead ends: 4257 [2024-11-08 17:11:10,233 INFO L226 Difference]: Without dead ends: 3597 [2024-11-08 17:11:10,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:11:10,235 INFO L432 NwaCegarLoop]: 1675 mSDtfsCounter, 1520 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 1785 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:11:10,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 1785 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:11:10,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3597 states. [2024-11-08 17:11:10,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3597 to 3595. [2024-11-08 17:11:10,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3595 states, 3593 states have (on average 1.5594210965766768) internal successors, (5603), 3594 states have internal predecessors, (5603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:10,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3595 states to 3595 states and 5603 transitions. [2024-11-08 17:11:10,285 INFO L78 Accepts]: Start accepts. Automaton has 3595 states and 5603 transitions. Word has length 94 [2024-11-08 17:11:10,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:10,286 INFO L471 AbstractCegarLoop]: Abstraction has 3595 states and 5603 transitions. [2024-11-08 17:11:10,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:10,286 INFO L276 IsEmpty]: Start isEmpty. Operand 3595 states and 5603 transitions. [2024-11-08 17:11:10,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:11:10,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:10,287 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] [2024-11-08 17:11:10,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 17:11:10,287 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:10,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:10,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1332693356, now seen corresponding path program 1 times [2024-11-08 17:11:10,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:10,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305484211] [2024-11-08 17:11:10,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:10,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:10,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:11:10,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:10,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305484211] [2024-11-08 17:11:10,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305484211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:10,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:10,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:11:10,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878145263] [2024-11-08 17:11:10,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:10,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:11:10,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:10,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:11:10,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:11:10,349 INFO L87 Difference]: Start difference. First operand 3595 states and 5603 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:10,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:10,393 INFO L93 Difference]: Finished difference Result 6039 states and 9373 transitions. [2024-11-08 17:11:10,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:11:10,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-08 17:11:10,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:10,401 INFO L225 Difference]: With dead ends: 6039 [2024-11-08 17:11:10,401 INFO L226 Difference]: Without dead ends: 4769 [2024-11-08 17:11:10,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:11:10,403 INFO L432 NwaCegarLoop]: 1673 mSDtfsCounter, 1518 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:11:10,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 1787 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:11:10,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4769 states. [2024-11-08 17:11:10,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4769 to 4767. [2024-11-08 17:11:10,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4767 states, 4765 states have (on average 1.5485834207764952) internal successors, (7379), 4766 states have internal predecessors, (7379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:10,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4767 states to 4767 states and 7379 transitions. [2024-11-08 17:11:10,473 INFO L78 Accepts]: Start accepts. Automaton has 4767 states and 7379 transitions. Word has length 94 [2024-11-08 17:11:10,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:10,474 INFO L471 AbstractCegarLoop]: Abstraction has 4767 states and 7379 transitions. [2024-11-08 17:11:10,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:10,474 INFO L276 IsEmpty]: Start isEmpty. Operand 4767 states and 7379 transitions. [2024-11-08 17:11:10,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:11:10,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:10,475 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:11:10,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 17:11:10,475 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:10,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:10,476 INFO L85 PathProgramCache]: Analyzing trace with hash -94431340, now seen corresponding path program 1 times [2024-11-08 17:11:10,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:10,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809888038] [2024-11-08 17:11:10,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:10,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:10,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:11:10,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:10,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809888038] [2024-11-08 17:11:10,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809888038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:10,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:10,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:11:10,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756461573] [2024-11-08 17:11:10,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:10,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:11:10,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:10,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:11:10,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:11:10,540 INFO L87 Difference]: Start difference. First operand 4767 states and 7379 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:10,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:10,624 INFO L93 Difference]: Finished difference Result 9459 states and 14533 transitions. [2024-11-08 17:11:10,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:11:10,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-08 17:11:10,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:10,641 INFO L225 Difference]: With dead ends: 9459 [2024-11-08 17:11:10,641 INFO L226 Difference]: Without dead ends: 7017 [2024-11-08 17:11:10,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:11:10,647 INFO L432 NwaCegarLoop]: 1671 mSDtfsCounter, 1516 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:11:10,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1789 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:11:10,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7017 states. [2024-11-08 17:11:10,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7017 to 7015. [2024-11-08 17:11:10,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7015 states, 7013 states have (on average 1.5312990161129332) internal successors, (10739), 7014 states have internal predecessors, (10739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:10,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7015 states to 7015 states and 10739 transitions. [2024-11-08 17:11:10,768 INFO L78 Accepts]: Start accepts. Automaton has 7015 states and 10739 transitions. Word has length 94 [2024-11-08 17:11:10,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:10,769 INFO L471 AbstractCegarLoop]: Abstraction has 7015 states and 10739 transitions. [2024-11-08 17:11:10,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:10,769 INFO L276 IsEmpty]: Start isEmpty. Operand 7015 states and 10739 transitions. [2024-11-08 17:11:10,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:11:10,770 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:10,770 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] [2024-11-08 17:11:10,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 17:11:10,770 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:10,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:10,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1985067156, now seen corresponding path program 1 times [2024-11-08 17:11:10,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:10,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803612297] [2024-11-08 17:11:10,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:10,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:10,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:10,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:11:10,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:10,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803612297] [2024-11-08 17:11:10,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803612297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:10,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:10,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:11:10,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615150311] [2024-11-08 17:11:10,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:10,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:11:10,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:10,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:11:10,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:11:10,838 INFO L87 Difference]: Start difference. First operand 7015 states and 10739 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:11,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:11,008 INFO L93 Difference]: Finished difference Result 16011 states and 24277 transitions. [2024-11-08 17:11:11,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:11:11,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-08 17:11:11,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:11,026 INFO L225 Difference]: With dead ends: 16011 [2024-11-08 17:11:11,027 INFO L226 Difference]: Without dead ends: 11321 [2024-11-08 17:11:11,032 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:11:11,033 INFO L432 NwaCegarLoop]: 1669 mSDtfsCounter, 1514 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:11:11,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1791 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:11:11,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11321 states. [2024-11-08 17:11:11,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11321 to 11319. [2024-11-08 17:11:11,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11319 states, 11317 states have (on average 1.5087920827074313) internal successors, (17075), 11318 states have internal predecessors, (17075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:11,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11319 states to 11319 states and 17075 transitions. [2024-11-08 17:11:11,321 INFO L78 Accepts]: Start accepts. Automaton has 11319 states and 17075 transitions. Word has length 94 [2024-11-08 17:11:11,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:11,321 INFO L471 AbstractCegarLoop]: Abstraction has 11319 states and 17075 transitions. [2024-11-08 17:11:11,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:11,322 INFO L276 IsEmpty]: Start isEmpty. Operand 11319 states and 17075 transitions. [2024-11-08 17:11:11,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:11:11,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:11,323 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:11:11,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 17:11:11,323 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:11,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:11,324 INFO L85 PathProgramCache]: Analyzing trace with hash -528967276, now seen corresponding path program 1 times [2024-11-08 17:11:11,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:11,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080663174] [2024-11-08 17:11:11,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:11,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:11,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:11,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:11:11,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:11,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080663174] [2024-11-08 17:11:11,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080663174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:11,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:11,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:11:11,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950129043] [2024-11-08 17:11:11,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:11,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:11:11,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:11,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:11:11,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:11:11,398 INFO L87 Difference]: Start difference. First operand 11319 states and 17075 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:11,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:11,596 INFO L93 Difference]: Finished difference Result 28539 states and 42613 transitions. [2024-11-08 17:11:11,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:11:11,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-08 17:11:11,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:11,627 INFO L225 Difference]: With dead ends: 28539 [2024-11-08 17:11:11,627 INFO L226 Difference]: Without dead ends: 19545 [2024-11-08 17:11:11,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:11:11,642 INFO L432 NwaCegarLoop]: 1667 mSDtfsCounter, 1512 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1793 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:11:11,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1793 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:11:11,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19545 states. [2024-11-08 17:11:12,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19545 to 19543. [2024-11-08 17:11:12,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19543 states, 19541 states have (on average 1.482984494140525) internal successors, (28979), 19542 states have internal predecessors, (28979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:12,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19543 states to 19543 states and 28979 transitions. [2024-11-08 17:11:12,073 INFO L78 Accepts]: Start accepts. Automaton has 19543 states and 28979 transitions. Word has length 94 [2024-11-08 17:11:12,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:12,073 INFO L471 AbstractCegarLoop]: Abstraction has 19543 states and 28979 transitions. [2024-11-08 17:11:12,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:12,073 INFO L276 IsEmpty]: Start isEmpty. Operand 19543 states and 28979 transitions. [2024-11-08 17:11:12,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 17:11:12,074 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:12,074 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] [2024-11-08 17:11:12,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 17:11:12,075 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:12,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:12,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1759464300, now seen corresponding path program 1 times [2024-11-08 17:11:12,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:12,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073883315] [2024-11-08 17:11:12,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:12,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:12,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:12,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:11:12,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:12,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073883315] [2024-11-08 17:11:12,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073883315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:12,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:12,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:11:12,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988195816] [2024-11-08 17:11:12,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:12,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:11:12,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:12,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:11:12,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:11:12,139 INFO L87 Difference]: Start difference. First operand 19543 states and 28979 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:12,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:12,606 INFO L93 Difference]: Finished difference Result 52443 states and 76981 transitions. [2024-11-08 17:11:12,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:11:12,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-08 17:11:12,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:12,657 INFO L225 Difference]: With dead ends: 52443 [2024-11-08 17:11:12,657 INFO L226 Difference]: Without dead ends: 35225 [2024-11-08 17:11:12,672 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:11:12,673 INFO L432 NwaCegarLoop]: 1685 mSDtfsCounter, 1522 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:11:12,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 1791 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:11:12,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35225 states. [2024-11-08 17:11:13,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35225 to 35223. [2024-11-08 17:11:13,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35223 states, 35221 states have (on average 1.4551262031174583) internal successors, (51251), 35222 states have internal predecessors, (51251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:13,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35223 states to 35223 states and 51251 transitions. [2024-11-08 17:11:13,405 INFO L78 Accepts]: Start accepts. Automaton has 35223 states and 51251 transitions. Word has length 94 [2024-11-08 17:11:13,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:13,406 INFO L471 AbstractCegarLoop]: Abstraction has 35223 states and 51251 transitions. [2024-11-08 17:11:13,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:13,406 INFO L276 IsEmpty]: Start isEmpty. Operand 35223 states and 51251 transitions. [2024-11-08 17:11:13,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 17:11:13,413 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:13,413 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 17:11:13,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 17:11:13,413 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:13,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:13,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1733023753, now seen corresponding path program 1 times [2024-11-08 17:11:13,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:13,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97213568] [2024-11-08 17:11:13,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:13,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:13,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:13,691 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 17:11:13,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:13,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97213568] [2024-11-08 17:11:13,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97213568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:13,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:13,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 17:11:13,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530841025] [2024-11-08 17:11:13,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:13,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:11:13,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:13,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:11:13,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:11:13,695 INFO L87 Difference]: Start difference. First operand 35223 states and 51251 transitions. Second operand has 10 states, 10 states have (on average 11.8) internal successors, (118), 10 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:17,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:17,693 INFO L93 Difference]: Finished difference Result 295209 states and 427324 transitions. [2024-11-08 17:11:17,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:11:17,694 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 10 states have internal predecessors, (118), 0 states have call successors, (0), 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 [2024-11-08 17:11:17,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:18,280 INFO L225 Difference]: With dead ends: 295209 [2024-11-08 17:11:18,281 INFO L226 Difference]: Without dead ends: 272167 [2024-11-08 17:11:18,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-08 17:11:18,350 INFO L432 NwaCegarLoop]: 1701 mSDtfsCounter, 11705 mSDsluCounter, 3582 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11705 SdHoareTripleChecker+Valid, 5283 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:11:18,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11705 Valid, 5283 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:11:18,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272167 states. [2024-11-08 17:11:21,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272167 to 63255. [2024-11-08 17:11:21,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63255 states, 63253 states have (on average 1.4456705610801068) internal successors, (91443), 63254 states have internal predecessors, (91443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:21,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63255 states to 63255 states and 91443 transitions. [2024-11-08 17:11:21,775 INFO L78 Accepts]: Start accepts. Automaton has 63255 states and 91443 transitions. Word has length 119 [2024-11-08 17:11:21,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:21,775 INFO L471 AbstractCegarLoop]: Abstraction has 63255 states and 91443 transitions. [2024-11-08 17:11:21,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 10 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:21,775 INFO L276 IsEmpty]: Start isEmpty. Operand 63255 states and 91443 transitions. [2024-11-08 17:11:21,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 17:11:21,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:21,784 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 17:11:21,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 17:11:21,784 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:21,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:21,785 INFO L85 PathProgramCache]: Analyzing trace with hash 579963127, now seen corresponding path program 1 times [2024-11-08 17:11:21,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:21,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256558604] [2024-11-08 17:11:21,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:21,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:21,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:22,001 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 17:11:22,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:22,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256558604] [2024-11-08 17:11:22,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256558604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:22,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:22,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 17:11:22,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445439521] [2024-11-08 17:11:22,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:22,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:11:22,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:22,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:11:22,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:11:22,004 INFO L87 Difference]: Start difference. First operand 63255 states and 91443 transitions. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:28,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:28,182 INFO L93 Difference]: Finished difference Result 328105 states and 474684 transitions. [2024-11-08 17:11:28,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:11:28,182 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 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 [2024-11-08 17:11:28,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:28,656 INFO L225 Difference]: With dead ends: 328105 [2024-11-08 17:11:28,656 INFO L226 Difference]: Without dead ends: 295207 [2024-11-08 17:11:28,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-08 17:11:28,716 INFO L432 NwaCegarLoop]: 1700 mSDtfsCounter, 11707 mSDsluCounter, 3528 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11707 SdHoareTripleChecker+Valid, 5228 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:11:28,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11707 Valid, 5228 Invalid, 286 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:11:28,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295207 states. [2024-11-08 17:11:33,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295207 to 107671. [2024-11-08 17:11:33,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107671 states, 107669 states have (on average 1.440145260009845) internal successors, (155059), 107670 states have internal predecessors, (155059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:33,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107671 states to 107671 states and 155059 transitions. [2024-11-08 17:11:33,608 INFO L78 Accepts]: Start accepts. Automaton has 107671 states and 155059 transitions. Word has length 119 [2024-11-08 17:11:33,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:33,608 INFO L471 AbstractCegarLoop]: Abstraction has 107671 states and 155059 transitions. [2024-11-08 17:11:33,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:33,609 INFO L276 IsEmpty]: Start isEmpty. Operand 107671 states and 155059 transitions. [2024-11-08 17:11:33,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 17:11:33,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:33,619 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 17:11:33,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 17:11:33,619 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:33,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:33,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1610020105, now seen corresponding path program 1 times [2024-11-08 17:11:33,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:33,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076039514] [2024-11-08 17:11:33,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:33,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:33,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:33,809 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 17:11:33,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:33,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076039514] [2024-11-08 17:11:33,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076039514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:33,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:33,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 17:11:33,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392869153] [2024-11-08 17:11:33,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:33,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:11:33,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:33,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:11:33,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:11:33,811 INFO L87 Difference]: Start difference. First operand 107671 states and 155059 transitions. Second operand has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:40,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:40,762 INFO L93 Difference]: Finished difference Result 361001 states and 521916 transitions. [2024-11-08 17:11:40,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:11:40,763 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 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 [2024-11-08 17:11:40,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:41,264 INFO L225 Difference]: With dead ends: 361001 [2024-11-08 17:11:41,264 INFO L226 Difference]: Without dead ends: 328103 [2024-11-08 17:11:41,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-08 17:11:41,344 INFO L432 NwaCegarLoop]: 1698 mSDtfsCounter, 11751 mSDsluCounter, 3518 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11751 SdHoareTripleChecker+Valid, 5216 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:11:41,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11751 Valid, 5216 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:11:41,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328103 states. [2024-11-08 17:11:47,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328103 to 140567. [2024-11-08 17:11:47,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140567 states, 140565 states have (on average 1.4391278056415182) internal successors, (202291), 140566 states have internal predecessors, (202291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:47,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140567 states to 140567 states and 202291 transitions. [2024-11-08 17:11:47,682 INFO L78 Accepts]: Start accepts. Automaton has 140567 states and 202291 transitions. Word has length 119 [2024-11-08 17:11:47,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:47,683 INFO L471 AbstractCegarLoop]: Abstraction has 140567 states and 202291 transitions. [2024-11-08 17:11:47,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:11:47,683 INFO L276 IsEmpty]: Start isEmpty. Operand 140567 states and 202291 transitions. [2024-11-08 17:11:47,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 17:11:47,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:47,694 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 17:11:47,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 17:11:47,695 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:47,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:47,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1346163721, now seen corresponding path program 1 times [2024-11-08 17:11:47,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:47,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571049157] [2024-11-08 17:11:47,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:47,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:11:47,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:47,881 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 17:11:47,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:11:47,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571049157] [2024-11-08 17:11:47,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571049157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:11:47,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:11:47,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 17:11:47,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776912748] [2024-11-08 17:11:47,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:11:47,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:11:47,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:47,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:11:47,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:11:47,884 INFO L87 Difference]: Start difference. First operand 140567 states and 202291 transitions. Second operand has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)