./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label07.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label07.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8578f0ceafcc4b56caf84fe4059d5fa93f4b9517c890c90bab132851f9b4956c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-10 23:50:34,639 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-10 23:50:34,678 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-10 23:50:34,681 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-10 23:50:34,681 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-10 23:50:34,699 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-10 23:50:34,699 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-10 23:50:34,700 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-10 23:50:34,700 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-10 23:50:34,700 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-10 23:50:34,701 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-10 23:50:34,701 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-10 23:50:34,701 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-10 23:50:34,702 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-10 23:50:34,702 INFO L153 SettingsManager]: * Use SBE=true [2024-10-10 23:50:34,702 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-10 23:50:34,703 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-10 23:50:34,703 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-10 23:50:34,703 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-10 23:50:34,703 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-10 23:50:34,704 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-10 23:50:34,704 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-10 23:50:34,705 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-10 23:50:34,705 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-10 23:50:34,705 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-10 23:50:34,705 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-10 23:50:34,706 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-10 23:50:34,706 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-10 23:50:34,706 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-10 23:50:34,706 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-10 23:50:34,707 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-10 23:50:34,707 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-10 23:50:34,707 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-10 23:50:34,707 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-10 23:50:34,708 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-10 23:50:34,708 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-10 23:50:34,708 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-10 23:50:34,708 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-10 23:50:34,709 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-10 23:50:34,709 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-10 23:50:34,709 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-10 23:50:34,709 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-10 23:50:34,710 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8578f0ceafcc4b56caf84fe4059d5fa93f4b9517c890c90bab132851f9b4956c [2024-10-10 23:50:34,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-10 23:50:34,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-10 23:50:34,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-10 23:50:34,969 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-10 23:50:34,970 INFO L274 PluginConnector]: CDTParser initialized [2024-10-10 23:50:34,971 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label07.c [2024-10-10 23:50:36,265 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-10 23:50:36,620 INFO L384 CDTParser]: Found 1 translation units. [2024-10-10 23:50:36,621 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label07.c [2024-10-10 23:50:36,662 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/a6f359290/b3127068bfd04f6a9f793de6a1055e8e/FLAG4b39f752d [2024-10-10 23:50:36,844 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/a6f359290/b3127068bfd04f6a9f793de6a1055e8e [2024-10-10 23:50:36,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-10 23:50:36,848 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-10 23:50:36,850 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-10 23:50:36,850 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-10 23:50:36,854 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-10 23:50:36,855 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 11:50:36" (1/1) ... [2024-10-10 23:50:36,855 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fa160 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:50:36, skipping insertion in model container [2024-10-10 23:50:36,856 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 11:50:36" (1/1) ... [2024-10-10 23:50:36,987 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-10 23:50:37,160 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label07.c[5039,5052] [2024-10-10 23:50:37,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-10 23:50:37,622 INFO L200 MainTranslator]: Completed pre-run [2024-10-10 23:50:37,641 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label07.c[5039,5052] [2024-10-10 23:50:37,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-10 23:50:37,916 INFO L204 MainTranslator]: Completed translation [2024-10-10 23:50:37,916 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:50:37 WrapperNode [2024-10-10 23:50:37,916 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-10 23:50:37,917 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-10 23:50:37,918 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-10 23:50:37,918 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-10 23:50:37,923 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:50:37" (1/1) ... [2024-10-10 23:50:37,964 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:50:37" (1/1) ... [2024-10-10 23:50:38,124 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 4135 [2024-10-10 23:50:38,125 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-10 23:50:38,127 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-10 23:50:38,127 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-10 23:50:38,127 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-10 23:50:38,135 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:50:37" (1/1) ... [2024-10-10 23:50:38,136 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:50:37" (1/1) ... [2024-10-10 23:50:38,153 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:50:37" (1/1) ... [2024-10-10 23:50:38,299 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-10 23:50:38,299 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:50:37" (1/1) ... [2024-10-10 23:50:38,300 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:50:37" (1/1) ... [2024-10-10 23:50:38,360 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:50:37" (1/1) ... [2024-10-10 23:50:38,384 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:50:37" (1/1) ... [2024-10-10 23:50:38,412 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:50:37" (1/1) ... [2024-10-10 23:50:38,423 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:50:37" (1/1) ... [2024-10-10 23:50:38,460 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-10 23:50:38,462 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-10 23:50:38,462 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-10 23:50:38,462 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-10 23:50:38,463 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:50:37" (1/1) ... [2024-10-10 23:50:38,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-10 23:50:38,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-10 23:50:38,502 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-10 23:50:38,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-10 23:50:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-10 23:50:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-10 23:50:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-10 23:50:38,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-10 23:50:38,599 INFO L238 CfgBuilder]: Building ICFG [2024-10-10 23:50:38,601 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-10 23:50:41,110 INFO L? ?]: Removed 639 outVars from TransFormulas that were not future-live. [2024-10-10 23:50:41,111 INFO L287 CfgBuilder]: Performing block encoding [2024-10-10 23:50:41,166 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-10 23:50:41,166 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-10 23:50:41,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 11:50:41 BoogieIcfgContainer [2024-10-10 23:50:41,167 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-10 23:50:41,171 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-10 23:50:41,172 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-10 23:50:41,175 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-10 23:50:41,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 11:50:36" (1/3) ... [2024-10-10 23:50:41,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a42be72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 11:50:41, skipping insertion in model container [2024-10-10 23:50:41,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:50:37" (2/3) ... [2024-10-10 23:50:41,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a42be72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 11:50:41, skipping insertion in model container [2024-10-10 23:50:41,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 11:50:41" (3/3) ... [2024-10-10 23:50:41,177 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label07.c [2024-10-10 23:50:41,190 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-10 23:50:41,191 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-10 23:50:41,252 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-10 23:50:41,258 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;@21dcade7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-10 23:50:41,259 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-10 23:50:41,264 INFO L276 IsEmpty]: Start isEmpty. Operand has 695 states, 693 states have (on average 1.9942279942279941) internal successors, (1382), 694 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:41,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-10 23:50:41,269 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:50:41,270 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] [2024-10-10 23:50:41,270 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:50:41,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:50:41,274 INFO L85 PathProgramCache]: Analyzing trace with hash 479816624, now seen corresponding path program 1 times [2024-10-10 23:50:41,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:50:41,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267508859] [2024-10-10 23:50:41,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:50:41,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:50:41,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:50:41,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 23:50:41,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:50:41,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267508859] [2024-10-10 23:50:41,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267508859] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:50:41,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:50:41,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-10 23:50:41,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217773108] [2024-10-10 23:50:41,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:50:41,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-10 23:50:41,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:50:41,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-10 23:50:41,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-10 23:50:41,432 INFO L87 Difference]: Start difference. First operand has 695 states, 693 states have (on average 1.9942279942279941) internal successors, (1382), 694 states have internal predecessors, (1382), 0 states have call successors, (0), 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 23.0) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:41,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:50:41,487 INFO L93 Difference]: Finished difference Result 1389 states and 2763 transitions. [2024-10-10 23:50:41,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-10 23:50:41,497 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2024-10-10 23:50:41,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:50:41,508 INFO L225 Difference]: With dead ends: 1389 [2024-10-10 23:50:41,509 INFO L226 Difference]: Without dead ends: 693 [2024-10-10 23:50:41,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-10 23:50:41,516 INFO L432 NwaCegarLoop]: 1317 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1317 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-10 23:50:41,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1317 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-10 23:50:41,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-10-10 23:50:41,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 693. [2024-10-10 23:50:41,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 692 states have (on average 1.903179190751445) internal successors, (1317), 692 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:41,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1317 transitions. [2024-10-10 23:50:41,567 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1317 transitions. Word has length 46 [2024-10-10 23:50:41,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:50:41,567 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 1317 transitions. [2024-10-10 23:50:41,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:41,568 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1317 transitions. [2024-10-10 23:50:41,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-10 23:50:41,568 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:50:41,568 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] [2024-10-10 23:50:41,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-10 23:50:41,569 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:50:41,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:50:41,569 INFO L85 PathProgramCache]: Analyzing trace with hash 281458870, now seen corresponding path program 1 times [2024-10-10 23:50:41,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:50:41,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582833659] [2024-10-10 23:50:41,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:50:41,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:50:41,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:50:41,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 23:50:41,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:50:41,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582833659] [2024-10-10 23:50:41,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582833659] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:50:41,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:50:41,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-10 23:50:41,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146376157] [2024-10-10 23:50:41,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:50:41,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:50:41,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:50:41,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:50:41,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:50:41,733 INFO L87 Difference]: Start difference. First operand 693 states and 1317 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:44,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:50:44,294 INFO L93 Difference]: Finished difference Result 2075 states and 3948 transitions. [2024-10-10 23:50:44,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:50:44,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2024-10-10 23:50:44,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:50:44,299 INFO L225 Difference]: With dead ends: 2075 [2024-10-10 23:50:44,300 INFO L226 Difference]: Without dead ends: 1383 [2024-10-10 23:50:44,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:50:44,301 INFO L432 NwaCegarLoop]: 429 mSDtfsCounter, 729 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1994 mSolverCounterSat, 673 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 2667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 673 IncrementalHoareTripleChecker+Valid, 1994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-10 23:50:44,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 435 Invalid, 2667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [673 Valid, 1994 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-10 23:50:44,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2024-10-10 23:50:44,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 1383. [2024-10-10 23:50:44,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1383 states, 1382 states have (on average 1.5998552821997105) internal successors, (2211), 1382 states have internal predecessors, (2211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:44,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1383 states to 1383 states and 2211 transitions. [2024-10-10 23:50:44,330 INFO L78 Accepts]: Start accepts. Automaton has 1383 states and 2211 transitions. Word has length 46 [2024-10-10 23:50:44,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:50:44,331 INFO L471 AbstractCegarLoop]: Abstraction has 1383 states and 2211 transitions. [2024-10-10 23:50:44,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:44,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1383 states and 2211 transitions. [2024-10-10 23:50:44,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-10 23:50:44,333 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:50:44,333 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:50:44,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-10 23:50:44,334 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:50:44,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:50:44,334 INFO L85 PathProgramCache]: Analyzing trace with hash 443718749, now seen corresponding path program 1 times [2024-10-10 23:50:44,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:50:44,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697512431] [2024-10-10 23:50:44,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:50:44,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:50:44,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:50:44,484 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 23:50:44,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:50:44,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697512431] [2024-10-10 23:50:44,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697512431] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:50:44,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:50:44,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-10 23:50:44,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543958965] [2024-10-10 23:50:44,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:50:44,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:50:44,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:50:44,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:50:44,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:50:44,487 INFO L87 Difference]: Start difference. First operand 1383 states and 2211 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:46,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:50:46,757 INFO L93 Difference]: Finished difference Result 4145 states and 6630 transitions. [2024-10-10 23:50:46,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:50:46,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2024-10-10 23:50:46,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:50:46,771 INFO L225 Difference]: With dead ends: 4145 [2024-10-10 23:50:46,772 INFO L226 Difference]: Without dead ends: 2763 [2024-10-10 23:50:46,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:50:46,776 INFO L432 NwaCegarLoop]: 522 mSDtfsCounter, 714 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1702 mSolverCounterSat, 918 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 2620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 918 IncrementalHoareTripleChecker+Valid, 1702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-10 23:50:46,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [714 Valid, 527 Invalid, 2620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [918 Valid, 1702 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-10 23:50:46,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2024-10-10 23:50:46,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2763. [2024-10-10 23:50:46,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2762 states have (on average 1.3504706734250542) internal successors, (3730), 2762 states have internal predecessors, (3730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:46,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 3730 transitions. [2024-10-10 23:50:46,817 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 3730 transitions. Word has length 111 [2024-10-10 23:50:46,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:50:46,818 INFO L471 AbstractCegarLoop]: Abstraction has 2763 states and 3730 transitions. [2024-10-10 23:50:46,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:46,819 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 3730 transitions. [2024-10-10 23:50:46,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-10-10 23:50:46,829 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:50:46,830 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:50:46,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-10 23:50:46,830 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:50:46,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:50:46,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1806430181, now seen corresponding path program 1 times [2024-10-10 23:50:46,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:50:46,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679548070] [2024-10-10 23:50:46,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:50:46,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:50:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:50:47,336 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-10-10 23:50:47,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:50:47,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679548070] [2024-10-10 23:50:47,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679548070] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:50:47,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:50:47,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:50:47,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701236861] [2024-10-10 23:50:47,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:50:47,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-10 23:50:47,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:50:47,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-10 23:50:47,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-10 23:50:47,341 INFO L87 Difference]: Start difference. First operand 2763 states and 3730 transitions. Second operand has 4 states, 4 states have (on average 46.25) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:50,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:50:50,588 INFO L93 Difference]: Finished difference Result 6905 states and 9073 transitions. [2024-10-10 23:50:50,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-10 23:50:50,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 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 229 [2024-10-10 23:50:50,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:50:50,602 INFO L225 Difference]: With dead ends: 6905 [2024-10-10 23:50:50,602 INFO L226 Difference]: Without dead ends: 4143 [2024-10-10 23:50:50,606 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 [2024-10-10 23:50:50,607 INFO L432 NwaCegarLoop]: 621 mSDtfsCounter, 1873 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 4085 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1873 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 4275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 4085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-10-10 23:50:50,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1873 Valid, 638 Invalid, 4275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 4085 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-10-10 23:50:50,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4143 states. [2024-10-10 23:50:50,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4143 to 4143. [2024-10-10 23:50:50,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4143 states, 4142 states have (on average 1.2467407049734427) internal successors, (5164), 4142 states have internal predecessors, (5164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:50,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4143 states to 4143 states and 5164 transitions. [2024-10-10 23:50:50,666 INFO L78 Accepts]: Start accepts. Automaton has 4143 states and 5164 transitions. Word has length 229 [2024-10-10 23:50:50,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:50:50,667 INFO L471 AbstractCegarLoop]: Abstraction has 4143 states and 5164 transitions. [2024-10-10 23:50:50,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:50,668 INFO L276 IsEmpty]: Start isEmpty. Operand 4143 states and 5164 transitions. [2024-10-10 23:50:50,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2024-10-10 23:50:50,674 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:50:50,674 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:50:50,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-10 23:50:50,675 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:50:50,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:50:50,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1976670233, now seen corresponding path program 1 times [2024-10-10 23:50:50,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:50:50,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979650292] [2024-10-10 23:50:50,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:50:50,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:50:50,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:50:50,902 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 23:50:50,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:50:50,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979650292] [2024-10-10 23:50:50,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979650292] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:50:50,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:50:50,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:50:50,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723280159] [2024-10-10 23:50:50,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:50:50,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:50:50,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:50:50,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:50:50,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:50:50,909 INFO L87 Difference]: Start difference. First operand 4143 states and 5164 transitions. Second operand has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:53,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:50:53,227 INFO L93 Difference]: Finished difference Result 12425 states and 15489 transitions. [2024-10-10 23:50:53,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:50:53,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 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 345 [2024-10-10 23:50:53,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:50:53,250 INFO L225 Difference]: With dead ends: 12425 [2024-10-10 23:50:53,250 INFO L226 Difference]: Without dead ends: 8283 [2024-10-10 23:50:53,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:50:53,257 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 675 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1992 mSolverCounterSat, 991 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 2983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 991 IncrementalHoareTripleChecker+Valid, 1992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-10 23:50:53,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 146 Invalid, 2983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [991 Valid, 1992 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-10 23:50:53,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8283 states. [2024-10-10 23:50:53,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8283 to 7593. [2024-10-10 23:50:53,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7593 states, 7592 states have (on average 1.2413066385669125) internal successors, (9424), 7592 states have internal predecessors, (9424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:53,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7593 states to 7593 states and 9424 transitions. [2024-10-10 23:50:53,356 INFO L78 Accepts]: Start accepts. Automaton has 7593 states and 9424 transitions. Word has length 345 [2024-10-10 23:50:53,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:50:53,357 INFO L471 AbstractCegarLoop]: Abstraction has 7593 states and 9424 transitions. [2024-10-10 23:50:53,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:53,357 INFO L276 IsEmpty]: Start isEmpty. Operand 7593 states and 9424 transitions. [2024-10-10 23:50:53,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2024-10-10 23:50:53,362 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:50:53,362 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:50:53,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-10 23:50:53,362 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:50:53,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:50:53,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1902799554, now seen corresponding path program 1 times [2024-10-10 23:50:53,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:50:53,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501917511] [2024-10-10 23:50:53,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:50:53,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:50:53,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:50:53,768 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-10 23:50:53,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:50:53,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501917511] [2024-10-10 23:50:53,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501917511] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:50:53,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:50:53,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-10 23:50:53,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114238904] [2024-10-10 23:50:53,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:50:53,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:50:53,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:50:53,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:50:53,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:50:53,770 INFO L87 Difference]: Start difference. First operand 7593 states and 9424 transitions. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 2 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:56,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:50:56,031 INFO L93 Difference]: Finished difference Result 20015 states and 25395 transitions. [2024-10-10 23:50:56,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:50:56,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 2 states have internal predecessors, (347), 0 states have call successors, (0), 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 430 [2024-10-10 23:50:56,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:50:56,072 INFO L225 Difference]: With dead ends: 20015 [2024-10-10 23:50:56,072 INFO L226 Difference]: Without dead ends: 12423 [2024-10-10 23:50:56,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:50:56,082 INFO L432 NwaCegarLoop]: 590 mSDtfsCounter, 397 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2223 mSolverCounterSat, 514 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 2737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 514 IncrementalHoareTripleChecker+Valid, 2223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-10 23:50:56,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 596 Invalid, 2737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [514 Valid, 2223 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-10 23:50:56,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12423 states. [2024-10-10 23:50:56,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12423 to 12423. [2024-10-10 23:50:56,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12423 states, 12422 states have (on average 1.1904685235871841) internal successors, (14788), 12422 states have internal predecessors, (14788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:56,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12423 states to 12423 states and 14788 transitions. [2024-10-10 23:50:56,243 INFO L78 Accepts]: Start accepts. Automaton has 12423 states and 14788 transitions. Word has length 430 [2024-10-10 23:50:56,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:50:56,244 INFO L471 AbstractCegarLoop]: Abstraction has 12423 states and 14788 transitions. [2024-10-10 23:50:56,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 2 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:56,245 INFO L276 IsEmpty]: Start isEmpty. Operand 12423 states and 14788 transitions. [2024-10-10 23:50:56,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2024-10-10 23:50:56,250 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:50:56,251 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:50:56,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-10 23:50:56,251 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:50:56,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:50:56,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1839181745, now seen corresponding path program 1 times [2024-10-10 23:50:56,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:50:56,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459027746] [2024-10-10 23:50:56,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:50:56,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:50:56,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:50:56,506 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-10-10 23:50:56,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:50:56,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459027746] [2024-10-10 23:50:56,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459027746] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:50:56,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:50:56,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:50:56,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881373211] [2024-10-10 23:50:56,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:50:56,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:50:56,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:50:56,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:50:56,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:50:56,509 INFO L87 Difference]: Start difference. First operand 12423 states and 14788 transitions. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:58,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:50:58,828 INFO L93 Difference]: Finished difference Result 28985 states and 34911 transitions. [2024-10-10 23:50:58,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:50:58,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 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 431 [2024-10-10 23:50:58,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:50:58,853 INFO L225 Difference]: With dead ends: 28985 [2024-10-10 23:50:58,854 INFO L226 Difference]: Without dead ends: 16563 [2024-10-10 23:50:58,865 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:50:58,866 INFO L432 NwaCegarLoop]: 1297 mSDtfsCounter, 646 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2397 mSolverCounterSat, 432 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 2829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 432 IncrementalHoareTripleChecker+Valid, 2397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-10 23:50:58,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 1303 Invalid, 2829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [432 Valid, 2397 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-10 23:50:58,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16563 states. [2024-10-10 23:50:59,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16563 to 16563. [2024-10-10 23:50:59,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16563 states, 16562 states have (on average 1.1747373505615264) internal successors, (19456), 16562 states have internal predecessors, (19456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:59,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16563 states to 16563 states and 19456 transitions. [2024-10-10 23:50:59,217 INFO L78 Accepts]: Start accepts. Automaton has 16563 states and 19456 transitions. Word has length 431 [2024-10-10 23:50:59,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:50:59,218 INFO L471 AbstractCegarLoop]: Abstraction has 16563 states and 19456 transitions. [2024-10-10 23:50:59,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:50:59,219 INFO L276 IsEmpty]: Start isEmpty. Operand 16563 states and 19456 transitions. [2024-10-10 23:50:59,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2024-10-10 23:50:59,229 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:50:59,230 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:50:59,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-10 23:50:59,230 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:50:59,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:50:59,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1308858517, now seen corresponding path program 1 times [2024-10-10 23:50:59,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:50:59,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613731965] [2024-10-10 23:50:59,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:50:59,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:50:59,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:50:59,715 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 23:50:59,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:50:59,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613731965] [2024-10-10 23:50:59,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613731965] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:50:59,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:50:59,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:50:59,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438539021] [2024-10-10 23:50:59,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:50:59,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:50:59,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:50:59,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:50:59,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:50:59,719 INFO L87 Difference]: Start difference. First operand 16563 states and 19456 transitions. Second operand has 3 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:01,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:51:01,823 INFO L93 Difference]: Finished difference Result 38645 states and 45451 transitions. [2024-10-10 23:51:01,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:51:01,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 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 452 [2024-10-10 23:51:01,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:51:01,852 INFO L225 Difference]: With dead ends: 38645 [2024-10-10 23:51:01,853 INFO L226 Difference]: Without dead ends: 22083 [2024-10-10 23:51:01,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:51:01,865 INFO L432 NwaCegarLoop]: 1068 mSDtfsCounter, 586 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2202 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 2520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 2202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-10 23:51:01,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 1074 Invalid, 2520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 2202 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-10 23:51:01,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22083 states. [2024-10-10 23:51:02,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22083 to 21393. [2024-10-10 23:51:02,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21393 states, 21392 states have (on average 1.1574420344053853) internal successors, (24760), 21392 states have internal predecessors, (24760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:02,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21393 states to 21393 states and 24760 transitions. [2024-10-10 23:51:02,061 INFO L78 Accepts]: Start accepts. Automaton has 21393 states and 24760 transitions. Word has length 452 [2024-10-10 23:51:02,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:51:02,061 INFO L471 AbstractCegarLoop]: Abstraction has 21393 states and 24760 transitions. [2024-10-10 23:51:02,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:02,062 INFO L276 IsEmpty]: Start isEmpty. Operand 21393 states and 24760 transitions. [2024-10-10 23:51:02,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2024-10-10 23:51:02,065 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:51:02,065 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:51:02,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-10 23:51:02,066 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:51:02,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:51:02,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1544221914, now seen corresponding path program 1 times [2024-10-10 23:51:02,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:51:02,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29328827] [2024-10-10 23:51:02,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:02,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:51:02,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:02,421 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 23:51:02,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:51:02,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29328827] [2024-10-10 23:51:02,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29328827] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:51:02,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:51:02,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:51:02,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411566612] [2024-10-10 23:51:02,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:51:02,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:51:02,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:51:02,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:51:02,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:51:02,425 INFO L87 Difference]: Start difference. First operand 21393 states and 24760 transitions. Second operand has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:04,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:51:04,661 INFO L93 Difference]: Finished difference Result 47615 states and 55321 transitions. [2024-10-10 23:51:04,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:51:04,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 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 459 [2024-10-10 23:51:04,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:51:04,706 INFO L225 Difference]: With dead ends: 47615 [2024-10-10 23:51:04,706 INFO L226 Difference]: Without dead ends: 26223 [2024-10-10 23:51:04,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:51:04,730 INFO L432 NwaCegarLoop]: 628 mSDtfsCounter, 583 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2454 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 2725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 2454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-10 23:51:04,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 634 Invalid, 2725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 2454 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-10 23:51:04,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26223 states. [2024-10-10 23:51:04,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26223 to 26223. [2024-10-10 23:51:04,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26223 states, 26222 states have (on average 1.1478910838227443) internal successors, (30100), 26222 states have internal predecessors, (30100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:04,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26223 states to 26223 states and 30100 transitions. [2024-10-10 23:51:04,991 INFO L78 Accepts]: Start accepts. Automaton has 26223 states and 30100 transitions. Word has length 459 [2024-10-10 23:51:04,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:51:04,992 INFO L471 AbstractCegarLoop]: Abstraction has 26223 states and 30100 transitions. [2024-10-10 23:51:04,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:04,992 INFO L276 IsEmpty]: Start isEmpty. Operand 26223 states and 30100 transitions. [2024-10-10 23:51:04,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2024-10-10 23:51:04,995 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:51:04,995 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:51:04,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-10 23:51:04,996 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:51:04,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:51:04,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1365235031, now seen corresponding path program 1 times [2024-10-10 23:51:04,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:51:04,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904875069] [2024-10-10 23:51:04,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:04,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:51:05,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:05,338 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 445 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2024-10-10 23:51:05,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:51:05,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904875069] [2024-10-10 23:51:05,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904875069] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:51:05,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:51:05,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:51:05,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053062648] [2024-10-10 23:51:05,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:51:05,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-10 23:51:05,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:51:05,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-10 23:51:05,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-10 23:51:05,340 INFO L87 Difference]: Start difference. First operand 26223 states and 30100 transitions. Second operand has 4 states, 4 states have (on average 88.75) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:07,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:51:07,466 INFO L93 Difference]: Finished difference Result 53878 states and 61680 transitions. [2024-10-10 23:51:07,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-10 23:51:07,467 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 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 485 [2024-10-10 23:51:07,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:51:07,495 INFO L225 Difference]: With dead ends: 53878 [2024-10-10 23:51:07,495 INFO L226 Difference]: Without dead ends: 28293 [2024-10-10 23:51:07,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-10 23:51:07,514 INFO L432 NwaCegarLoop]: 622 mSDtfsCounter, 529 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2591 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 2972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 2591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-10 23:51:07,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 633 Invalid, 2972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 2591 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-10 23:51:07,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28293 states. [2024-10-10 23:51:07,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28293 to 28293. [2024-10-10 23:51:07,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28293 states, 28292 states have (on average 1.1045878693623639) internal successors, (31251), 28292 states have internal predecessors, (31251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:07,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28293 states to 28293 states and 31251 transitions. [2024-10-10 23:51:07,939 INFO L78 Accepts]: Start accepts. Automaton has 28293 states and 31251 transitions. Word has length 485 [2024-10-10 23:51:07,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:51:07,940 INFO L471 AbstractCegarLoop]: Abstraction has 28293 states and 31251 transitions. [2024-10-10 23:51:07,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:07,940 INFO L276 IsEmpty]: Start isEmpty. Operand 28293 states and 31251 transitions. [2024-10-10 23:51:07,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1054 [2024-10-10 23:51:07,953 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:51:07,954 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:51:07,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-10 23:51:07,954 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:51:07,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:51:07,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1846144406, now seen corresponding path program 1 times [2024-10-10 23:51:07,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:51:07,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304773975] [2024-10-10 23:51:07,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:07,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:51:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:08,555 INFO L134 CoverageAnalysis]: Checked inductivity of 947 backedges. 478 proven. 0 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2024-10-10 23:51:08,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:51:08,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304773975] [2024-10-10 23:51:08,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304773975] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:51:08,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:51:08,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:51:08,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246961867] [2024-10-10 23:51:08,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:51:08,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:51:08,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:51:08,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:51:08,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:51:08,558 INFO L87 Difference]: Start difference. First operand 28293 states and 31251 transitions. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:10,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:51:10,590 INFO L93 Difference]: Finished difference Result 63485 states and 70818 transitions. [2024-10-10 23:51:10,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:51:10,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 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 1053 [2024-10-10 23:51:10,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:51:10,628 INFO L225 Difference]: With dead ends: 63485 [2024-10-10 23:51:10,628 INFO L226 Difference]: Without dead ends: 36573 [2024-10-10 23:51:10,646 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 [2024-10-10 23:51:10,647 INFO L432 NwaCegarLoop]: 1126 mSDtfsCounter, 584 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1924 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 2327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 1924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-10 23:51:10,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 1132 Invalid, 2327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 1924 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-10 23:51:10,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36573 states. [2024-10-10 23:51:10,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36573 to 36573. [2024-10-10 23:51:10,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36573 states, 36572 states have (on average 1.0901235918188779) internal successors, (39868), 36572 states have internal predecessors, (39868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:10,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36573 states to 36573 states and 39868 transitions. [2024-10-10 23:51:10,925 INFO L78 Accepts]: Start accepts. Automaton has 36573 states and 39868 transitions. Word has length 1053 [2024-10-10 23:51:10,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:51:10,926 INFO L471 AbstractCegarLoop]: Abstraction has 36573 states and 39868 transitions. [2024-10-10 23:51:10,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:10,926 INFO L276 IsEmpty]: Start isEmpty. Operand 36573 states and 39868 transitions. [2024-10-10 23:51:10,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1056 [2024-10-10 23:51:10,933 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:51:10,934 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:51:10,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-10 23:51:10,934 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:51:10,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:51:10,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1069941603, now seen corresponding path program 1 times [2024-10-10 23:51:10,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:51:10,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554650180] [2024-10-10 23:51:10,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:10,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:51:11,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:12,419 INFO L134 CoverageAnalysis]: Checked inductivity of 928 backedges. 553 proven. 330 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-10-10 23:51:12,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:51:12,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554650180] [2024-10-10 23:51:12,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554650180] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-10 23:51:12,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550400619] [2024-10-10 23:51:12,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:12,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:51:12,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-10 23:51:12,421 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-10 23:51:12,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-10 23:51:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:12,704 INFO L255 TraceCheckSpWp]: Trace formula consists of 1217 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-10 23:51:12,732 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-10 23:51:12,885 INFO L134 CoverageAnalysis]: Checked inductivity of 928 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 749 trivial. 0 not checked. [2024-10-10 23:51:12,885 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-10 23:51:12,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550400619] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:51:12,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-10 23:51:12,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-10-10 23:51:12,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829393520] [2024-10-10 23:51:12,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:51:12,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:51:12,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:51:12,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:51:12,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-10 23:51:12,889 INFO L87 Difference]: Start difference. First operand 36573 states and 39868 transitions. Second operand has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:15,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:51:15,019 INFO L93 Difference]: Finished difference Result 81425 states and 90302 transitions. [2024-10-10 23:51:15,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:51:15,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 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 1055 [2024-10-10 23:51:15,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:51:15,079 INFO L225 Difference]: With dead ends: 81425 [2024-10-10 23:51:15,079 INFO L226 Difference]: Without dead ends: 46233 [2024-10-10 23:51:15,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1061 GetRequests, 1054 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-10 23:51:15,106 INFO L432 NwaCegarLoop]: 1131 mSDtfsCounter, 654 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1906 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 2350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 1906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-10 23:51:15,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 1137 Invalid, 2350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 1906 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-10 23:51:15,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46233 states. [2024-10-10 23:51:15,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46233 to 45543. [2024-10-10 23:51:15,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45543 states, 45542 states have (on average 1.0876333933511924) internal successors, (49533), 45542 states have internal predecessors, (49533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:15,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45543 states to 45543 states and 49533 transitions. [2024-10-10 23:51:15,522 INFO L78 Accepts]: Start accepts. Automaton has 45543 states and 49533 transitions. Word has length 1055 [2024-10-10 23:51:15,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:51:15,523 INFO L471 AbstractCegarLoop]: Abstraction has 45543 states and 49533 transitions. [2024-10-10 23:51:15,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:15,524 INFO L276 IsEmpty]: Start isEmpty. Operand 45543 states and 49533 transitions. [2024-10-10 23:51:15,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1130 [2024-10-10 23:51:15,534 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:51:15,535 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:51:15,554 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-10 23:51:15,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-10 23:51:15,736 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:51:15,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:51:15,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1614128806, now seen corresponding path program 1 times [2024-10-10 23:51:15,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:51:15,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424358871] [2024-10-10 23:51:15,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:15,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:51:15,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:16,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1303 backedges. 768 proven. 0 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2024-10-10 23:51:16,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:51:16,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424358871] [2024-10-10 23:51:16,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424358871] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:51:16,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:51:16,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:51:16,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273379477] [2024-10-10 23:51:16,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:51:16,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:51:16,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:51:16,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:51:16,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:51:16,716 INFO L87 Difference]: Start difference. First operand 45543 states and 49533 transitions. Second operand has 3 states, 3 states have (on average 229.66666666666666) internal successors, (689), 3 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:18,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:51:18,368 INFO L93 Difference]: Finished difference Result 89705 states and 97681 transitions. [2024-10-10 23:51:18,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:51:18,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 229.66666666666666) internal successors, (689), 3 states have internal predecessors, (689), 0 states have call successors, (0), 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 1129 [2024-10-10 23:51:18,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:51:18,417 INFO L225 Difference]: With dead ends: 89705 [2024-10-10 23:51:18,417 INFO L226 Difference]: Without dead ends: 45543 [2024-10-10 23:51:18,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:51:18,447 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 681 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1792 mSolverCounterSat, 419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 2211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 419 IncrementalHoareTripleChecker+Valid, 1792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-10 23:51:18,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 75 Invalid, 2211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [419 Valid, 1792 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-10 23:51:18,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45543 states. [2024-10-10 23:51:18,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45543 to 41403. [2024-10-10 23:51:18,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41403 states, 41402 states have (on average 1.0849717404956283) internal successors, (44920), 41402 states have internal predecessors, (44920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:18,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41403 states to 41403 states and 44920 transitions. [2024-10-10 23:51:18,977 INFO L78 Accepts]: Start accepts. Automaton has 41403 states and 44920 transitions. Word has length 1129 [2024-10-10 23:51:18,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:51:18,978 INFO L471 AbstractCegarLoop]: Abstraction has 41403 states and 44920 transitions. [2024-10-10 23:51:18,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 229.66666666666666) internal successors, (689), 3 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:18,978 INFO L276 IsEmpty]: Start isEmpty. Operand 41403 states and 44920 transitions. [2024-10-10 23:51:18,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1135 [2024-10-10 23:51:18,987 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:51:18,987 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:51:18,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-10 23:51:18,988 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:51:18,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:51:18,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1680628606, now seen corresponding path program 1 times [2024-10-10 23:51:18,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:51:18,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526878993] [2024-10-10 23:51:18,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:18,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:51:19,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:20,359 INFO L134 CoverageAnalysis]: Checked inductivity of 1321 backedges. 394 proven. 841 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-10-10 23:51:20,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:51:20,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526878993] [2024-10-10 23:51:20,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526878993] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-10 23:51:20,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421527173] [2024-10-10 23:51:20,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:20,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:51:20,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-10 23:51:20,363 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-10 23:51:20,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-10 23:51:20,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:20,598 INFO L255 TraceCheckSpWp]: Trace formula consists of 1320 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-10 23:51:20,608 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-10 23:51:20,705 INFO L134 CoverageAnalysis]: Checked inductivity of 1321 backedges. 559 proven. 0 refuted. 0 times theorem prover too weak. 762 trivial. 0 not checked. [2024-10-10 23:51:20,706 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-10 23:51:20,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421527173] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:51:20,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-10 23:51:20,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-10-10 23:51:20,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056793694] [2024-10-10 23:51:20,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:51:20,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:51:20,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:51:20,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:51:20,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-10 23:51:20,710 INFO L87 Difference]: Start difference. First operand 41403 states and 44920 transitions. Second operand has 3 states, 3 states have (on average 216.33333333333334) internal successors, (649), 3 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:22,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:51:22,659 INFO L93 Difference]: Finished difference Result 81425 states and 88455 transitions. [2024-10-10 23:51:22,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:51:22,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 216.33333333333334) internal successors, (649), 3 states have internal predecessors, (649), 0 states have call successors, (0), 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 1134 [2024-10-10 23:51:22,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:51:22,704 INFO L225 Difference]: With dead ends: 81425 [2024-10-10 23:51:22,705 INFO L226 Difference]: Without dead ends: 41403 [2024-10-10 23:51:22,719 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1141 GetRequests, 1134 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-10 23:51:22,720 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 698 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1826 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 2184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 1826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-10 23:51:22,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 168 Invalid, 2184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 1826 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-10 23:51:22,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41403 states. [2024-10-10 23:51:23,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41403 to 41403. [2024-10-10 23:51:23,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41403 states, 41402 states have (on average 1.0655282353509492) internal successors, (44115), 41402 states have internal predecessors, (44115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:23,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41403 states to 41403 states and 44115 transitions. [2024-10-10 23:51:23,194 INFO L78 Accepts]: Start accepts. Automaton has 41403 states and 44115 transitions. Word has length 1134 [2024-10-10 23:51:23,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:51:23,194 INFO L471 AbstractCegarLoop]: Abstraction has 41403 states and 44115 transitions. [2024-10-10 23:51:23,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 216.33333333333334) internal successors, (649), 3 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:23,195 INFO L276 IsEmpty]: Start isEmpty. Operand 41403 states and 44115 transitions. [2024-10-10 23:51:23,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1140 [2024-10-10 23:51:23,213 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:51:23,213 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:51:23,227 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-10 23:51:23,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:51:23,415 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:51:23,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:51:23,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1333485574, now seen corresponding path program 1 times [2024-10-10 23:51:23,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:51:23,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333633437] [2024-10-10 23:51:23,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:23,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:51:23,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:24,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1294 backedges. 693 proven. 48 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2024-10-10 23:51:24,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:51:24,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333633437] [2024-10-10 23:51:24,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333633437] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-10 23:51:24,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778436313] [2024-10-10 23:51:24,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:24,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:51:24,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-10 23:51:24,599 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-10 23:51:24,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-10 23:51:24,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:24,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 1325 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-10 23:51:24,840 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-10 23:51:24,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1294 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 1070 trivial. 0 not checked. [2024-10-10 23:51:24,899 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-10 23:51:24,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778436313] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:51:24,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-10 23:51:24,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-10-10 23:51:24,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206475533] [2024-10-10 23:51:24,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:51:24,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:51:24,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:51:24,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:51:24,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-10 23:51:24,901 INFO L87 Difference]: Start difference. First operand 41403 states and 44115 transitions. Second operand has 3 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:26,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:51:26,877 INFO L93 Difference]: Finished difference Result 96605 states and 103632 transitions. [2024-10-10 23:51:26,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:51:26,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 0 states have call successors, (0), 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 1139 [2024-10-10 23:51:26,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:51:26,935 INFO L225 Difference]: With dead ends: 96605 [2024-10-10 23:51:26,935 INFO L226 Difference]: Without dead ends: 56583 [2024-10-10 23:51:26,964 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1142 GetRequests, 1139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-10 23:51:26,965 INFO L432 NwaCegarLoop]: 354 mSDtfsCounter, 656 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2080 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 2398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 2080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-10 23:51:26,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 360 Invalid, 2398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 2080 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-10 23:51:27,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56583 states. [2024-10-10 23:51:27,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56583 to 51753. [2024-10-10 23:51:27,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51753 states, 51752 states have (on average 1.0691953934147473) internal successors, (55333), 51752 states have internal predecessors, (55333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:27,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51753 states to 51753 states and 55333 transitions. [2024-10-10 23:51:27,488 INFO L78 Accepts]: Start accepts. Automaton has 51753 states and 55333 transitions. Word has length 1139 [2024-10-10 23:51:27,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:51:27,490 INFO L471 AbstractCegarLoop]: Abstraction has 51753 states and 55333 transitions. [2024-10-10 23:51:27,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:27,490 INFO L276 IsEmpty]: Start isEmpty. Operand 51753 states and 55333 transitions. [2024-10-10 23:51:27,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1147 [2024-10-10 23:51:27,499 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:51:27,500 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:51:27,514 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-10 23:51:27,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:51:27,701 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:51:27,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:51:27,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1228739697, now seen corresponding path program 1 times [2024-10-10 23:51:27,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:51:27,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319756484] [2024-10-10 23:51:27,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:27,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:51:27,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:29,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1315 backedges. 825 proven. 330 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-10-10 23:51:29,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:51:29,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319756484] [2024-10-10 23:51:29,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319756484] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-10 23:51:29,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804058956] [2024-10-10 23:51:29,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:29,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:51:29,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-10 23:51:29,548 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-10 23:51:29,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-10 23:51:29,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:29,783 INFO L255 TraceCheckSpWp]: Trace formula consists of 1332 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-10 23:51:29,790 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-10 23:51:29,906 INFO L134 CoverageAnalysis]: Checked inductivity of 1315 backedges. 730 proven. 0 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2024-10-10 23:51:29,907 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-10 23:51:29,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804058956] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:51:29,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-10 23:51:29,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-10-10 23:51:29,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805402022] [2024-10-10 23:51:29,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:51:29,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:51:29,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:51:29,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:51:29,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-10 23:51:29,909 INFO L87 Difference]: Start difference. First operand 51753 states and 55333 transitions. Second operand has 3 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:31,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:51:31,879 INFO L93 Difference]: Finished difference Result 115235 states and 123863 transitions. [2024-10-10 23:51:31,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:51:31,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 0 states have call successors, (0), 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 1146 [2024-10-10 23:51:31,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:51:31,938 INFO L225 Difference]: With dead ends: 115235 [2024-10-10 23:51:31,938 INFO L226 Difference]: Without dead ends: 60033 [2024-10-10 23:51:31,970 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1152 GetRequests, 1145 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-10 23:51:31,971 INFO L432 NwaCegarLoop]: 1105 mSDtfsCounter, 634 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1717 mSolverCounterSat, 518 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 2235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 518 IncrementalHoareTripleChecker+Valid, 1717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-10 23:51:31,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 1110 Invalid, 2235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [518 Valid, 1717 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-10 23:51:32,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60033 states. [2024-10-10 23:51:32,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60033 to 57963. [2024-10-10 23:51:32,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57963 states, 57962 states have (on average 1.038628756771678) internal successors, (60201), 57962 states have internal predecessors, (60201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:32,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57963 states to 57963 states and 60201 transitions. [2024-10-10 23:51:32,523 INFO L78 Accepts]: Start accepts. Automaton has 57963 states and 60201 transitions. Word has length 1146 [2024-10-10 23:51:32,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:51:32,524 INFO L471 AbstractCegarLoop]: Abstraction has 57963 states and 60201 transitions. [2024-10-10 23:51:32,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:32,524 INFO L276 IsEmpty]: Start isEmpty. Operand 57963 states and 60201 transitions. [2024-10-10 23:51:32,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1238 [2024-10-10 23:51:32,536 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:51:32,536 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:51:32,551 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-10 23:51:32,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-10 23:51:32,737 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:51:32,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:51:32,738 INFO L85 PathProgramCache]: Analyzing trace with hash 787537929, now seen corresponding path program 1 times [2024-10-10 23:51:32,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:51:32,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619413235] [2024-10-10 23:51:32,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:32,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:51:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:34,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1781 backedges. 836 proven. 437 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2024-10-10 23:51:34,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:51:34,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619413235] [2024-10-10 23:51:34,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619413235] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-10 23:51:34,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711527932] [2024-10-10 23:51:34,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:34,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:51:34,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-10 23:51:34,689 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-10 23:51:34,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-10 23:51:34,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:34,949 INFO L255 TraceCheckSpWp]: Trace formula consists of 1447 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-10 23:51:34,957 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-10 23:51:35,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1781 backedges. 694 proven. 0 refuted. 0 times theorem prover too weak. 1087 trivial. 0 not checked. [2024-10-10 23:51:35,051 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-10 23:51:35,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711527932] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:51:35,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-10 23:51:35,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-10-10 23:51:35,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856746011] [2024-10-10 23:51:35,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:51:35,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:51:35,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:51:35,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:51:35,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-10 23:51:35,053 INFO L87 Difference]: Start difference. First operand 57963 states and 60201 transitions. Second operand has 3 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:36,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:51:36,757 INFO L93 Difference]: Finished difference Result 119375 states and 123918 transitions. [2024-10-10 23:51:36,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:51:36,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 0 states have call successors, (0), 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 1237 [2024-10-10 23:51:36,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:51:36,830 INFO L225 Difference]: With dead ends: 119375 [2024-10-10 23:51:36,830 INFO L226 Difference]: Without dead ends: 57273 [2024-10-10 23:51:36,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1242 GetRequests, 1237 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-10 23:51:36,874 INFO L432 NwaCegarLoop]: 810 mSDtfsCounter, 635 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1662 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 1883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 1662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-10 23:51:36,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 815 Invalid, 1883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 1662 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-10 23:51:36,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57273 states. [2024-10-10 23:51:37,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57273 to 56583. [2024-10-10 23:51:37,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56583 states, 56582 states have (on average 1.030009543671132) internal successors, (58280), 56582 states have internal predecessors, (58280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:37,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56583 states to 56583 states and 58280 transitions. [2024-10-10 23:51:37,474 INFO L78 Accepts]: Start accepts. Automaton has 56583 states and 58280 transitions. Word has length 1237 [2024-10-10 23:51:37,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:51:37,475 INFO L471 AbstractCegarLoop]: Abstraction has 56583 states and 58280 transitions. [2024-10-10 23:51:37,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:37,475 INFO L276 IsEmpty]: Start isEmpty. Operand 56583 states and 58280 transitions. [2024-10-10 23:51:37,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1239 [2024-10-10 23:51:37,486 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:51:37,487 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:51:37,500 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-10 23:51:37,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-10 23:51:37,688 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:51:37,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:51:37,688 INFO L85 PathProgramCache]: Analyzing trace with hash 552727842, now seen corresponding path program 1 times [2024-10-10 23:51:37,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:51:37,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024828034] [2024-10-10 23:51:37,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:37,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:51:37,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:39,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1783 backedges. 936 proven. 581 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2024-10-10 23:51:39,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:51:39,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024828034] [2024-10-10 23:51:39,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024828034] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-10 23:51:39,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505397523] [2024-10-10 23:51:39,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:39,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:51:39,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-10 23:51:39,274 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-10 23:51:39,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-10 23:51:39,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:39,592 INFO L255 TraceCheckSpWp]: Trace formula consists of 1452 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-10 23:51:39,603 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-10 23:51:39,832 INFO L134 CoverageAnalysis]: Checked inductivity of 1783 backedges. 1069 proven. 0 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2024-10-10 23:51:39,833 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-10 23:51:39,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1505397523] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:51:39,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-10 23:51:39,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-10-10 23:51:39,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946541738] [2024-10-10 23:51:39,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:51:39,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:51:39,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:51:39,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:51:39,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-10 23:51:39,838 INFO L87 Difference]: Start difference. First operand 56583 states and 58280 transitions. Second operand has 3 states, 3 states have (on average 248.66666666666666) internal successors, (746), 3 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:41,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:51:41,525 INFO L93 Difference]: Finished difference Result 112475 states and 115868 transitions. [2024-10-10 23:51:41,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:51:41,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 248.66666666666666) internal successors, (746), 3 states have internal predecessors, (746), 0 states have call successors, (0), 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 1238 [2024-10-10 23:51:41,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:51:41,586 INFO L225 Difference]: With dead ends: 112475 [2024-10-10 23:51:41,587 INFO L226 Difference]: Without dead ends: 56583 [2024-10-10 23:51:41,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1243 GetRequests, 1238 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-10 23:51:41,621 INFO L432 NwaCegarLoop]: 857 mSDtfsCounter, 583 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1642 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 1808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 1642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-10 23:51:41,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 862 Invalid, 1808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 1642 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-10 23:51:41,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56583 states. [2024-10-10 23:51:42,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56583 to 55893. [2024-10-10 23:51:42,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55893 states, 55892 states have (on average 1.026032348099907) internal successors, (57347), 55892 states have internal predecessors, (57347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:42,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55893 states to 55893 states and 57347 transitions. [2024-10-10 23:51:42,174 INFO L78 Accepts]: Start accepts. Automaton has 55893 states and 57347 transitions. Word has length 1238 [2024-10-10 23:51:42,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:51:42,175 INFO L471 AbstractCegarLoop]: Abstraction has 55893 states and 57347 transitions. [2024-10-10 23:51:42,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 248.66666666666666) internal successors, (746), 3 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:42,175 INFO L276 IsEmpty]: Start isEmpty. Operand 55893 states and 57347 transitions. [2024-10-10 23:51:42,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1283 [2024-10-10 23:51:42,374 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:51:42,375 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:51:42,396 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-10 23:51:42,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-10 23:51:42,579 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:51:42,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:51:42,580 INFO L85 PathProgramCache]: Analyzing trace with hash 958328263, now seen corresponding path program 1 times [2024-10-10 23:51:42,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:51:42,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043501591] [2024-10-10 23:51:42,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:42,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:51:42,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:44,856 INFO L134 CoverageAnalysis]: Checked inductivity of 1368 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 1187 trivial. 0 not checked. [2024-10-10 23:51:44,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:51:44,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043501591] [2024-10-10 23:51:44,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043501591] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:51:44,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:51:44,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:51:44,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245071650] [2024-10-10 23:51:44,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:51:44,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:51:44,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:51:44,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:51:44,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:51:44,859 INFO L87 Difference]: Start difference. First operand 55893 states and 57347 transitions. Second operand has 3 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:46,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:51:46,513 INFO L93 Difference]: Finished difference Result 111095 states and 114002 transitions. [2024-10-10 23:51:46,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:51:46,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 0 states have call successors, (0), 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 1282 [2024-10-10 23:51:46,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:51:46,574 INFO L225 Difference]: With dead ends: 111095 [2024-10-10 23:51:46,575 INFO L226 Difference]: Without dead ends: 55893 [2024-10-10 23:51:46,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:51:46,603 INFO L432 NwaCegarLoop]: 737 mSDtfsCounter, 749 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1669 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 749 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 1826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-10 23:51:46,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [749 Valid, 743 Invalid, 1826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 1669 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-10 23:51:46,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55893 states. [2024-10-10 23:51:47,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55893 to 55893. [2024-10-10 23:51:47,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55893 states, 55892 states have (on average 1.0240821584484363) internal successors, (57238), 55892 states have internal predecessors, (57238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:47,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55893 states to 55893 states and 57238 transitions. [2024-10-10 23:51:47,163 INFO L78 Accepts]: Start accepts. Automaton has 55893 states and 57238 transitions. Word has length 1282 [2024-10-10 23:51:47,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:51:47,164 INFO L471 AbstractCegarLoop]: Abstraction has 55893 states and 57238 transitions. [2024-10-10 23:51:47,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:47,164 INFO L276 IsEmpty]: Start isEmpty. Operand 55893 states and 57238 transitions. [2024-10-10 23:51:47,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1406 [2024-10-10 23:51:47,185 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:51:47,185 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:51:47,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-10 23:51:47,186 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:51:47,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:51:47,186 INFO L85 PathProgramCache]: Analyzing trace with hash -282053245, now seen corresponding path program 1 times [2024-10-10 23:51:47,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:51:47,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92459071] [2024-10-10 23:51:47,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:47,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:51:47,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:47,904 INFO L134 CoverageAnalysis]: Checked inductivity of 2632 backedges. 1715 proven. 0 refuted. 0 times theorem prover too weak. 917 trivial. 0 not checked. [2024-10-10 23:51:47,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:51:47,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92459071] [2024-10-10 23:51:47,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92459071] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:51:47,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:51:47,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:51:47,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517677940] [2024-10-10 23:51:47,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:51:47,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:51:47,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:51:47,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:51:47,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:51:47,907 INFO L87 Difference]: Start difference. First operand 55893 states and 57238 transitions. Second operand has 3 states, 3 states have (on average 255.66666666666666) internal successors, (767), 3 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:49,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:51:49,643 INFO L93 Difference]: Finished difference Result 111095 states and 113773 transitions. [2024-10-10 23:51:49,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:51:49,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 255.66666666666666) internal successors, (767), 3 states have internal predecessors, (767), 0 states have call successors, (0), 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 1405 [2024-10-10 23:51:49,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:51:49,706 INFO L225 Difference]: With dead ends: 111095 [2024-10-10 23:51:49,707 INFO L226 Difference]: Without dead ends: 55203 [2024-10-10 23:51:49,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:51:49,745 INFO L432 NwaCegarLoop]: 914 mSDtfsCounter, 553 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1651 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 1758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-10 23:51:49,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 920 Invalid, 1758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1651 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-10 23:51:49,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55203 states. [2024-10-10 23:51:50,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55203 to 53823. [2024-10-10 23:51:50,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53823 states, 53822 states have (on average 1.0195830701200252) internal successors, (54876), 53822 states have internal predecessors, (54876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:50,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53823 states to 53823 states and 54876 transitions. [2024-10-10 23:51:50,403 INFO L78 Accepts]: Start accepts. Automaton has 53823 states and 54876 transitions. Word has length 1405 [2024-10-10 23:51:50,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:51:50,404 INFO L471 AbstractCegarLoop]: Abstraction has 53823 states and 54876 transitions. [2024-10-10 23:51:50,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 255.66666666666666) internal successors, (767), 3 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:50,404 INFO L276 IsEmpty]: Start isEmpty. Operand 53823 states and 54876 transitions. [2024-10-10 23:51:50,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1445 [2024-10-10 23:51:50,610 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:51:50,610 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:51:50,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-10 23:51:50,610 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:51:50,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:51:50,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1607341626, now seen corresponding path program 1 times [2024-10-10 23:51:50,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:51:50,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638850417] [2024-10-10 23:51:50,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:50,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:51:50,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:52,376 INFO L134 CoverageAnalysis]: Checked inductivity of 2659 backedges. 1647 proven. 330 refuted. 0 times theorem prover too weak. 682 trivial. 0 not checked. [2024-10-10 23:51:52,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:51:52,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638850417] [2024-10-10 23:51:52,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638850417] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-10 23:51:52,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269945596] [2024-10-10 23:51:52,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:52,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:51:52,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-10 23:51:52,378 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-10 23:51:52,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-10 23:51:52,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:52,661 INFO L255 TraceCheckSpWp]: Trace formula consists of 1679 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-10 23:51:52,669 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-10 23:51:52,747 INFO L134 CoverageAnalysis]: Checked inductivity of 2659 backedges. 1445 proven. 0 refuted. 0 times theorem prover too weak. 1214 trivial. 0 not checked. [2024-10-10 23:51:52,748 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-10 23:51:52,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269945596] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:51:52,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-10 23:51:52,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-10-10 23:51:52,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072663069] [2024-10-10 23:51:52,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:51:52,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:51:52,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:51:52,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:51:52,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-10 23:51:52,750 INFO L87 Difference]: Start difference. First operand 53823 states and 54876 transitions. Second operand has 3 states, 3 states have (on average 234.0) internal successors, (702), 3 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:54,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:51:54,497 INFO L93 Difference]: Finished difference Result 109025 states and 111157 transitions. [2024-10-10 23:51:54,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:51:54,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 234.0) internal successors, (702), 3 states have internal predecessors, (702), 0 states have call successors, (0), 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 1444 [2024-10-10 23:51:54,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:51:54,561 INFO L225 Difference]: With dead ends: 109025 [2024-10-10 23:51:54,561 INFO L226 Difference]: Without dead ends: 55893 [2024-10-10 23:51:54,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1450 GetRequests, 1443 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-10 23:51:54,597 INFO L432 NwaCegarLoop]: 877 mSDtfsCounter, 634 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1741 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 1975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 1741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-10 23:51:54,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 882 Invalid, 1975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 1741 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-10 23:51:54,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55893 states. [2024-10-10 23:51:54,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55893 to 51753. [2024-10-10 23:51:55,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51753 states, 51752 states have (on average 1.017680476116865) internal successors, (52667), 51752 states have internal predecessors, (52667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:55,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51753 states to 51753 states and 52667 transitions. [2024-10-10 23:51:55,306 INFO L78 Accepts]: Start accepts. Automaton has 51753 states and 52667 transitions. Word has length 1444 [2024-10-10 23:51:55,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:51:55,307 INFO L471 AbstractCegarLoop]: Abstraction has 51753 states and 52667 transitions. [2024-10-10 23:51:55,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 234.0) internal successors, (702), 3 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:55,307 INFO L276 IsEmpty]: Start isEmpty. Operand 51753 states and 52667 transitions. [2024-10-10 23:51:55,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1449 [2024-10-10 23:51:55,327 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:51:55,328 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:51:55,341 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-10 23:51:55,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:51:55,529 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:51:55,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:51:55,530 INFO L85 PathProgramCache]: Analyzing trace with hash 2144873976, now seen corresponding path program 1 times [2024-10-10 23:51:55,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:51:55,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718179189] [2024-10-10 23:51:55,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:55,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:51:55,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:51:57,185 INFO L134 CoverageAnalysis]: Checked inductivity of 2422 backedges. 1620 proven. 0 refuted. 0 times theorem prover too weak. 802 trivial. 0 not checked. [2024-10-10 23:51:57,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:51:57,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718179189] [2024-10-10 23:51:57,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718179189] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:51:57,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:51:57,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:51:57,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884749672] [2024-10-10 23:51:57,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:51:57,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-10 23:51:57,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:51:57,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-10 23:51:57,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-10 23:51:57,188 INFO L87 Difference]: Start difference. First operand 51753 states and 52667 transitions. Second operand has 4 states, 4 states have (on average 207.75) internal successors, (831), 3 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:59,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:51:59,202 INFO L93 Difference]: Finished difference Result 102815 states and 104642 transitions. [2024-10-10 23:51:59,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-10 23:51:59,203 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 207.75) internal successors, (831), 3 states have internal predecessors, (831), 0 states have call successors, (0), 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 1448 [2024-10-10 23:51:59,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:51:59,256 INFO L225 Difference]: With dead ends: 102815 [2024-10-10 23:51:59,256 INFO L226 Difference]: Without dead ends: 51753 [2024-10-10 23:51:59,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-10 23:51:59,281 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 765 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 2650 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 2700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-10 23:51:59,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 243 Invalid, 2700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2650 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-10 23:51:59,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51753 states. [2024-10-10 23:51:59,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51753 to 51753. [2024-10-10 23:51:59,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51753 states, 51752 states have (on average 1.0176611531921471) internal successors, (52666), 51752 states have internal predecessors, (52666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:59,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51753 states to 51753 states and 52666 transitions. [2024-10-10 23:51:59,700 INFO L78 Accepts]: Start accepts. Automaton has 51753 states and 52666 transitions. Word has length 1448 [2024-10-10 23:51:59,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:51:59,700 INFO L471 AbstractCegarLoop]: Abstraction has 51753 states and 52666 transitions. [2024-10-10 23:51:59,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 207.75) internal successors, (831), 3 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:51:59,701 INFO L276 IsEmpty]: Start isEmpty. Operand 51753 states and 52666 transitions. [2024-10-10 23:51:59,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1528 [2024-10-10 23:51:59,958 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:51:59,958 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:51:59,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-10 23:51:59,959 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:51:59,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:51:59,959 INFO L85 PathProgramCache]: Analyzing trace with hash -979059267, now seen corresponding path program 1 times [2024-10-10 23:51:59,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:51:59,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168288141] [2024-10-10 23:51:59,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:51:59,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:52:00,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:52:00,694 INFO L134 CoverageAnalysis]: Checked inductivity of 2975 backedges. 1575 proven. 0 refuted. 0 times theorem prover too weak. 1400 trivial. 0 not checked. [2024-10-10 23:52:00,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:52:00,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168288141] [2024-10-10 23:52:00,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168288141] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:52:00,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:52:00,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:52:00,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404160974] [2024-10-10 23:52:00,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:52:00,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:52:00,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:52:00,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:52:00,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:52:00,697 INFO L87 Difference]: Start difference. First operand 51753 states and 52666 transitions. Second operand has 3 states, 3 states have (on average 268.0) internal successors, (804), 3 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:52:02,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:52:02,203 INFO L93 Difference]: Finished difference Result 104885 states and 106737 transitions. [2024-10-10 23:52:02,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:52:02,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 268.0) internal successors, (804), 3 states have internal predecessors, (804), 0 states have call successors, (0), 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 1527 [2024-10-10 23:52:02,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:52:02,258 INFO L225 Difference]: With dead ends: 104885 [2024-10-10 23:52:02,258 INFO L226 Difference]: Without dead ends: 53823 [2024-10-10 23:52:02,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:52:02,367 INFO L432 NwaCegarLoop]: 915 mSDtfsCounter, 505 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1755 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 1914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-10 23:52:02,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 921 Invalid, 1914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1755 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-10 23:52:02,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53823 states. [2024-10-10 23:52:02,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53823 to 53823. [2024-10-10 23:52:02,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53823 states, 53822 states have (on average 1.0152168258333023) internal successors, (54641), 53822 states have internal predecessors, (54641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:52:02,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53823 states to 53823 states and 54641 transitions. [2024-10-10 23:52:02,767 INFO L78 Accepts]: Start accepts. Automaton has 53823 states and 54641 transitions. Word has length 1527 [2024-10-10 23:52:02,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:52:02,768 INFO L471 AbstractCegarLoop]: Abstraction has 53823 states and 54641 transitions. [2024-10-10 23:52:02,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 268.0) internal successors, (804), 3 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:52:02,768 INFO L276 IsEmpty]: Start isEmpty. Operand 53823 states and 54641 transitions. [2024-10-10 23:52:02,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1532 [2024-10-10 23:52:02,793 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:52:02,793 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:52:02,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-10 23:52:02,794 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:52:02,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:52:02,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1631692873, now seen corresponding path program 1 times [2024-10-10 23:52:02,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:52:02,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654717835] [2024-10-10 23:52:02,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:52:02,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms