./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d72d7c845292578ad4711d5954bbaa34eac8266f0504ea14ab2c6e0b02bee46d --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 22:33:13,541 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 22:33:13,623 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 22:33:13,627 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 22:33:13,628 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 22:33:13,660 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 22:33:13,661 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 22:33:13,661 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 22:33:13,662 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 22:33:13,663 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 22:33:13,663 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 22:33:13,664 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 22:33:13,664 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 22:33:13,666 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 22:33:13,667 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 22:33:13,667 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 22:33:13,667 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 22:33:13,667 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 22:33:13,668 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 22:33:13,668 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 22:33:13,668 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 22:33:13,672 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 22:33:13,672 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 22:33:13,673 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 22:33:13,673 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 22:33:13,673 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 22:33:13,673 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 22:33:13,674 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 22:33:13,674 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 22:33:13,674 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 22:33:13,674 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 22:33:13,675 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 22:33:13,675 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 22:33:13,675 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 22:33:13,675 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 22:33:13,676 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 22:33:13,676 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 22:33:13,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 22:33:13,676 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 22:33:13,676 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 22:33:13,677 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 22:33:13,678 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 22:33:13,678 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d72d7c845292578ad4711d5954bbaa34eac8266f0504ea14ab2c6e0b02bee46d [2024-11-19 22:33:13,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 22:33:13,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 22:33:13,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 22:33:13,953 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 22:33:13,953 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 22:33:13,955 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c [2024-11-19 22:33:15,423 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 22:33:15,664 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 22:33:15,665 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c [2024-11-19 22:33:15,685 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3473b9e9e/8606aa1ddce54035a7fd82db3a6f7b01/FLAG666ae1433 [2024-11-19 22:33:16,005 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3473b9e9e/8606aa1ddce54035a7fd82db3a6f7b01 [2024-11-19 22:33:16,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 22:33:16,009 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 22:33:16,012 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 22:33:16,012 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 22:33:16,017 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 22:33:16,018 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:33:16" (1/1) ... [2024-11-19 22:33:16,019 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@288f474e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:33:16, skipping insertion in model container [2024-11-19 22:33:16,019 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:33:16" (1/1) ... [2024-11-19 22:33:16,069 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 22:33:16,423 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c[31211,31224] [2024-11-19 22:33:16,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 22:33:16,451 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 22:33:16,548 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c[31211,31224] [2024-11-19 22:33:16,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 22:33:16,571 INFO L204 MainTranslator]: Completed translation [2024-11-19 22:33:16,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:33:16 WrapperNode [2024-11-19 22:33:16,572 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 22:33:16,573 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 22:33:16,573 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 22:33:16,573 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 22:33:16,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:33:16" (1/1) ... [2024-11-19 22:33:16,605 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:33:16" (1/1) ... [2024-11-19 22:33:16,666 INFO L138 Inliner]: procedures = 24, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 1025 [2024-11-19 22:33:16,667 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 22:33:16,668 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 22:33:16,668 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 22:33:16,668 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 22:33:16,678 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:33:16" (1/1) ... [2024-11-19 22:33:16,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:33:16" (1/1) ... [2024-11-19 22:33:16,684 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:33:16" (1/1) ... [2024-11-19 22:33:16,719 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-19 22:33:16,719 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:33:16" (1/1) ... [2024-11-19 22:33:16,719 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:33:16" (1/1) ... [2024-11-19 22:33:16,751 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:33:16" (1/1) ... [2024-11-19 22:33:16,793 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:33:16" (1/1) ... [2024-11-19 22:33:16,799 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:33:16" (1/1) ... [2024-11-19 22:33:16,807 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:33:16" (1/1) ... [2024-11-19 22:33:16,820 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 22:33:16,821 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 22:33:16,824 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 22:33:16,825 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 22:33:16,826 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:33:16" (1/1) ... [2024-11-19 22:33:16,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 22:33:16,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:33:16,910 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 22:33:16,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 22:33:16,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 22:33:16,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 22:33:16,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 22:33:16,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 22:33:17,124 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 22:33:17,126 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 22:33:18,204 INFO L? ?]: Removed 115 outVars from TransFormulas that were not future-live. [2024-11-19 22:33:18,205 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 22:33:18,231 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 22:33:18,231 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 22:33:18,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:33:18 BoogieIcfgContainer [2024-11-19 22:33:18,234 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 22:33:18,236 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 22:33:18,236 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 22:33:18,240 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 22:33:18,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:33:16" (1/3) ... [2024-11-19 22:33:18,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13480535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:33:18, skipping insertion in model container [2024-11-19 22:33:18,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:33:16" (2/3) ... [2024-11-19 22:33:18,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13480535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:33:18, skipping insertion in model container [2024-11-19 22:33:18,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:33:18" (3/3) ... [2024-11-19 22:33:18,244 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.ufo.UNBOUNDED.pals.c [2024-11-19 22:33:18,261 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 22:33:18,262 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 22:33:18,340 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 22:33:18,349 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;@1559c560, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 22:33:18,349 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 22:33:18,359 INFO L276 IsEmpty]: Start isEmpty. Operand has 309 states, 307 states have (on average 1.8241042345276872) internal successors, (560), 308 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:18,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-19 22:33:18,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:33:18,379 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:33:18,380 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:33:18,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:33:18,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1857685174, now seen corresponding path program 1 times [2024-11-19 22:33:18,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:33:18,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713882950] [2024-11-19 22:33:18,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:33:18,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:33:18,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:33:18,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:33:18,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:33:18,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713882950] [2024-11-19 22:33:18,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713882950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:33:18,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:33:18,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 22:33:18,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593631042] [2024-11-19 22:33:18,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:33:18,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 22:33:18,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:33:18,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 22:33:18,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 22:33:18,985 INFO L87 Difference]: Start difference. First operand has 309 states, 307 states have (on average 1.8241042345276872) internal successors, (560), 308 states have internal predecessors, (560), 0 states have call successors, (0), 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 38.5) internal successors, (77), 2 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:19,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:33:19,030 INFO L93 Difference]: Finished difference Result 419 states and 755 transitions. [2024-11-19 22:33:19,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 22:33:19,032 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-19 22:33:19,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:33:19,044 INFO L225 Difference]: With dead ends: 419 [2024-11-19 22:33:19,044 INFO L226 Difference]: Without dead ends: 305 [2024-11-19 22:33:19,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 22:33:19,051 INFO L432 NwaCegarLoop]: 553 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:33:19,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:33:19,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-11-19 22:33:19,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2024-11-19 22:33:19,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 304 states have (on average 1.819078947368421) internal successors, (553), 304 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:19,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 553 transitions. [2024-11-19 22:33:19,112 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 553 transitions. Word has length 77 [2024-11-19 22:33:19,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:33:19,113 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 553 transitions. [2024-11-19 22:33:19,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:19,113 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 553 transitions. [2024-11-19 22:33:19,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-19 22:33:19,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:33:19,117 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:33:19,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 22:33:19,118 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:33:19,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:33:19,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1723671668, now seen corresponding path program 1 times [2024-11-19 22:33:19,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:33:19,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718741300] [2024-11-19 22:33:19,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:33:19,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:33:19,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:33:19,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:33:19,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:33:19,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718741300] [2024-11-19 22:33:19,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718741300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:33:19,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:33:19,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 22:33:19,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988864377] [2024-11-19 22:33:19,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:33:19,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:33:19,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:33:19,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:33:19,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:33:19,581 INFO L87 Difference]: Start difference. First operand 305 states and 553 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:19,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:33:19,780 INFO L93 Difference]: Finished difference Result 418 states and 748 transitions. [2024-11-19 22:33:19,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 22:33:19,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-19 22:33:19,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:33:19,785 INFO L225 Difference]: With dead ends: 418 [2024-11-19 22:33:19,786 INFO L226 Difference]: Without dead ends: 305 [2024-11-19 22:33:19,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:33:19,788 INFO L432 NwaCegarLoop]: 551 mSDtfsCounter, 0 mSDsluCounter, 1602 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2153 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:33:19,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2153 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 22:33:19,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-11-19 22:33:19,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2024-11-19 22:33:19,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 304 states have (on average 1.667763157894737) internal successors, (507), 304 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:19,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 507 transitions. [2024-11-19 22:33:19,813 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 507 transitions. Word has length 77 [2024-11-19 22:33:19,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:33:19,813 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 507 transitions. [2024-11-19 22:33:19,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:19,814 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 507 transitions. [2024-11-19 22:33:19,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-19 22:33:19,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:33:19,817 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:33:19,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 22:33:19,818 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:33:19,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:33:19,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1503263658, now seen corresponding path program 1 times [2024-11-19 22:33:19,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:33:19,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738961356] [2024-11-19 22:33:19,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:33:19,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:33:19,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:33:20,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:33:20,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:33:20,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738961356] [2024-11-19 22:33:20,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738961356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:33:20,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:33:20,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:33:20,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140393146] [2024-11-19 22:33:20,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:33:20,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:33:20,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:33:20,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:33:20,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:33:20,132 INFO L87 Difference]: Start difference. First operand 305 states and 507 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:20,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:33:20,195 INFO L93 Difference]: Finished difference Result 511 states and 867 transitions. [2024-11-19 22:33:20,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:33:20,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2024-11-19 22:33:20,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:33:20,198 INFO L225 Difference]: With dead ends: 511 [2024-11-19 22:33:20,199 INFO L226 Difference]: Without dead ends: 402 [2024-11-19 22:33:20,200 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:33:20,204 INFO L432 NwaCegarLoop]: 500 mSDtfsCounter, 160 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:33:20,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 950 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:33:20,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2024-11-19 22:33:20,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 399. [2024-11-19 22:33:20,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 398 states have (on average 1.678391959798995) internal successors, (668), 398 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:20,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 668 transitions. [2024-11-19 22:33:20,231 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 668 transitions. Word has length 122 [2024-11-19 22:33:20,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:33:20,233 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 668 transitions. [2024-11-19 22:33:20,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:20,233 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 668 transitions. [2024-11-19 22:33:20,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-19 22:33:20,237 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:33:20,237 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:33:20,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 22:33:20,238 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:33:20,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:33:20,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1698701903, now seen corresponding path program 1 times [2024-11-19 22:33:20,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:33:20,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902597920] [2024-11-19 22:33:20,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:33:20,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:33:20,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:33:20,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:33:20,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:33:20,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902597920] [2024-11-19 22:33:20,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902597920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:33:20,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:33:20,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:33:20,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065481312] [2024-11-19 22:33:20,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:33:20,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:33:20,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:33:20,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:33:20,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:33:20,473 INFO L87 Difference]: Start difference. First operand 399 states and 668 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:20,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:33:20,517 INFO L93 Difference]: Finished difference Result 785 states and 1336 transitions. [2024-11-19 22:33:20,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:33:20,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-11-19 22:33:20,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:33:20,522 INFO L225 Difference]: With dead ends: 785 [2024-11-19 22:33:20,523 INFO L226 Difference]: Without dead ends: 582 [2024-11-19 22:33:20,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:33:20,529 INFO L432 NwaCegarLoop]: 504 mSDtfsCounter, 161 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:33:20,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 963 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:33:20,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2024-11-19 22:33:20,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 578. [2024-11-19 22:33:20,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 577 states have (on average 1.6932409012131715) internal successors, (977), 577 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:20,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 977 transitions. [2024-11-19 22:33:20,553 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 977 transitions. Word has length 125 [2024-11-19 22:33:20,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:33:20,555 INFO L471 AbstractCegarLoop]: Abstraction has 578 states and 977 transitions. [2024-11-19 22:33:20,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:20,555 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 977 transitions. [2024-11-19 22:33:20,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-19 22:33:20,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:33:20,559 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:33:20,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 22:33:20,559 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:33:20,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:33:20,560 INFO L85 PathProgramCache]: Analyzing trace with hash 490600502, now seen corresponding path program 1 times [2024-11-19 22:33:20,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:33:20,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461549001] [2024-11-19 22:33:20,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:33:20,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:33:20,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:33:20,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:33:20,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:33:20,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461549001] [2024-11-19 22:33:20,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461549001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:33:20,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:33:20,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:33:20,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4330418] [2024-11-19 22:33:20,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:33:20,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:33:20,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:33:20,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:33:20,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:33:20,787 INFO L87 Difference]: Start difference. First operand 578 states and 977 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:20,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:33:20,832 INFO L93 Difference]: Finished difference Result 1302 states and 2227 transitions. [2024-11-19 22:33:20,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:33:20,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2024-11-19 22:33:20,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:33:20,838 INFO L225 Difference]: With dead ends: 1302 [2024-11-19 22:33:20,838 INFO L226 Difference]: Without dead ends: 920 [2024-11-19 22:33:20,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:33:20,841 INFO L432 NwaCegarLoop]: 504 mSDtfsCounter, 154 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:33:20,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 964 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:33:20,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2024-11-19 22:33:20,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 914. [2024-11-19 22:33:20,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 914 states, 913 states have (on average 1.7009857612267252) internal successors, (1553), 913 states have internal predecessors, (1553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:20,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1553 transitions. [2024-11-19 22:33:20,874 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1553 transitions. Word has length 128 [2024-11-19 22:33:20,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:33:20,874 INFO L471 AbstractCegarLoop]: Abstraction has 914 states and 1553 transitions. [2024-11-19 22:33:20,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:20,876 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1553 transitions. [2024-11-19 22:33:20,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-19 22:33:20,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:33:20,877 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:33:20,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 22:33:20,878 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:33:20,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:33:20,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1051719067, now seen corresponding path program 1 times [2024-11-19 22:33:20,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:33:20,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564622980] [2024-11-19 22:33:20,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:33:20,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:33:20,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:33:21,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:33:21,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:33:21,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564622980] [2024-11-19 22:33:21,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564622980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:33:21,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:33:21,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:33:21,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385844343] [2024-11-19 22:33:21,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:33:21,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:33:21,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:33:21,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:33:21,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:33:21,039 INFO L87 Difference]: Start difference. First operand 914 states and 1553 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:21,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:33:21,098 INFO L93 Difference]: Finished difference Result 2270 states and 3883 transitions. [2024-11-19 22:33:21,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:33:21,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2024-11-19 22:33:21,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:33:21,107 INFO L225 Difference]: With dead ends: 2270 [2024-11-19 22:33:21,108 INFO L226 Difference]: Without dead ends: 1552 [2024-11-19 22:33:21,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:33:21,110 INFO L432 NwaCegarLoop]: 503 mSDtfsCounter, 146 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:33:21,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 962 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:33:21,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2024-11-19 22:33:21,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1542. [2024-11-19 22:33:21,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1542 states, 1541 states have (on average 1.6956521739130435) internal successors, (2613), 1541 states have internal predecessors, (2613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:21,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1542 states to 1542 states and 2613 transitions. [2024-11-19 22:33:21,157 INFO L78 Accepts]: Start accepts. Automaton has 1542 states and 2613 transitions. Word has length 131 [2024-11-19 22:33:21,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:33:21,157 INFO L471 AbstractCegarLoop]: Abstraction has 1542 states and 2613 transitions. [2024-11-19 22:33:21,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:21,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states and 2613 transitions. [2024-11-19 22:33:21,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-19 22:33:21,162 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:33:21,163 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:33:21,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 22:33:21,163 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:33:21,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:33:21,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1198235708, now seen corresponding path program 1 times [2024-11-19 22:33:21,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:33:21,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760640249] [2024-11-19 22:33:21,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:33:21,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:33:21,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:33:21,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:33:21,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:33:21,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760640249] [2024-11-19 22:33:21,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760640249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:33:21,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:33:21,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 22:33:21,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022057221] [2024-11-19 22:33:21,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:33:21,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 22:33:21,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:33:21,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 22:33:21,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 22:33:21,460 INFO L87 Difference]: Start difference. First operand 1542 states and 2613 transitions. Second operand has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:21,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:33:21,757 INFO L93 Difference]: Finished difference Result 7882 states and 13549 transitions. [2024-11-19 22:33:21,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:33:21,758 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2024-11-19 22:33:21,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:33:21,785 INFO L225 Difference]: With dead ends: 7882 [2024-11-19 22:33:21,785 INFO L226 Difference]: Without dead ends: 6536 [2024-11-19 22:33:21,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-19 22:33:21,793 INFO L432 NwaCegarLoop]: 504 mSDtfsCounter, 1778 mSDsluCounter, 3009 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1778 SdHoareTripleChecker+Valid, 3513 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:33:21,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1778 Valid, 3513 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 22:33:21,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6536 states. [2024-11-19 22:33:21,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6536 to 2797. [2024-11-19 22:33:21,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2797 states, 2796 states have (on average 1.699928469241774) internal successors, (4753), 2796 states have internal predecessors, (4753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:21,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 4753 transitions. [2024-11-19 22:33:21,977 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 4753 transitions. Word has length 134 [2024-11-19 22:33:21,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:33:21,977 INFO L471 AbstractCegarLoop]: Abstraction has 2797 states and 4753 transitions. [2024-11-19 22:33:21,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:21,978 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 4753 transitions. [2024-11-19 22:33:21,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 22:33:21,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:33:21,980 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:33:21,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 22:33:21,981 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:33:21,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:33:21,981 INFO L85 PathProgramCache]: Analyzing trace with hash 690961965, now seen corresponding path program 1 times [2024-11-19 22:33:21,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:33:21,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130563011] [2024-11-19 22:33:21,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:33:21,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:33:22,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:33:22,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:33:22,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:33:22,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130563011] [2024-11-19 22:33:22,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130563011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:33:22,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:33:22,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 22:33:22,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054596939] [2024-11-19 22:33:22,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:33:22,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 22:33:22,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:33:22,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 22:33:22,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 22:33:22,212 INFO L87 Difference]: Start difference. First operand 2797 states and 4753 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:22,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:33:22,346 INFO L93 Difference]: Finished difference Result 8150 states and 13964 transitions. [2024-11-19 22:33:22,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 22:33:22,347 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2024-11-19 22:33:22,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:33:22,370 INFO L225 Difference]: With dead ends: 8150 [2024-11-19 22:33:22,370 INFO L226 Difference]: Without dead ends: 5549 [2024-11-19 22:33:22,376 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:33:22,377 INFO L432 NwaCegarLoop]: 498 mSDtfsCounter, 553 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 1497 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:33:22,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 1497 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:33:22,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5549 states. [2024-11-19 22:33:22,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5549 to 4156. [2024-11-19 22:33:22,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4156 states, 4155 states have (on average 1.7037304452466908) internal successors, (7079), 4155 states have internal predecessors, (7079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:22,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4156 states to 4156 states and 7079 transitions. [2024-11-19 22:33:22,512 INFO L78 Accepts]: Start accepts. Automaton has 4156 states and 7079 transitions. Word has length 135 [2024-11-19 22:33:22,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:33:22,513 INFO L471 AbstractCegarLoop]: Abstraction has 4156 states and 7079 transitions. [2024-11-19 22:33:22,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:22,513 INFO L276 IsEmpty]: Start isEmpty. Operand 4156 states and 7079 transitions. [2024-11-19 22:33:22,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-19 22:33:22,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:33:22,517 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:33:22,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 22:33:22,517 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:33:22,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:33:22,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1980617837, now seen corresponding path program 1 times [2024-11-19 22:33:22,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:33:22,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294416135] [2024-11-19 22:33:22,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:33:22,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:33:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:33:22,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:33:22,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:33:22,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294416135] [2024-11-19 22:33:22,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294416135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:33:22,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:33:22,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 22:33:22,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033685124] [2024-11-19 22:33:22,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:33:22,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 22:33:22,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:33:22,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 22:33:22,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 22:33:22,721 INFO L87 Difference]: Start difference. First operand 4156 states and 7079 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:22,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:33:22,882 INFO L93 Difference]: Finished difference Result 12168 states and 20812 transitions. [2024-11-19 22:33:22,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 22:33:22,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2024-11-19 22:33:22,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:33:22,926 INFO L225 Difference]: With dead ends: 12168 [2024-11-19 22:33:22,929 INFO L226 Difference]: Without dead ends: 8208 [2024-11-19 22:33:22,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:33:22,943 INFO L432 NwaCegarLoop]: 498 mSDtfsCounter, 551 mSDsluCounter, 1129 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 1627 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:33:22,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 1627 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:33:22,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8208 states. [2024-11-19 22:33:23,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8208 to 6158. [2024-11-19 22:33:23,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6158 states, 6157 states have (on average 1.7013155757674192) internal successors, (10475), 6157 states have internal predecessors, (10475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:23,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6158 states to 6158 states and 10475 transitions. [2024-11-19 22:33:23,245 INFO L78 Accepts]: Start accepts. Automaton has 6158 states and 10475 transitions. Word has length 136 [2024-11-19 22:33:23,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:33:23,246 INFO L471 AbstractCegarLoop]: Abstraction has 6158 states and 10475 transitions. [2024-11-19 22:33:23,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:23,247 INFO L276 IsEmpty]: Start isEmpty. Operand 6158 states and 10475 transitions. [2024-11-19 22:33:23,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-19 22:33:23,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:33:23,250 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:33:23,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 22:33:23,250 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:33:23,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:33:23,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1268758564, now seen corresponding path program 1 times [2024-11-19 22:33:23,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:33:23,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424551785] [2024-11-19 22:33:23,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:33:23,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:33:23,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:33:23,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:33:23,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:33:23,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424551785] [2024-11-19 22:33:23,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424551785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:33:23,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:33:23,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 22:33:23,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48272958] [2024-11-19 22:33:23,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:33:23,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 22:33:23,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:33:23,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 22:33:23,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 22:33:23,420 INFO L87 Difference]: Start difference. First operand 6158 states and 10475 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:23,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:33:23,639 INFO L93 Difference]: Finished difference Result 18112 states and 30920 transitions. [2024-11-19 22:33:23,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 22:33:23,640 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2024-11-19 22:33:23,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:33:23,677 INFO L225 Difference]: With dead ends: 18112 [2024-11-19 22:33:23,677 INFO L226 Difference]: Without dead ends: 12150 [2024-11-19 22:33:23,690 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:33:23,691 INFO L432 NwaCegarLoop]: 508 mSDtfsCounter, 549 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 1639 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:33:23,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 1639 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:33:23,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12150 states. [2024-11-19 22:33:24,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12150 to 9120. [2024-11-19 22:33:24,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9120 states, 9119 states have (on average 1.6985415067441605) internal successors, (15489), 9119 states have internal predecessors, (15489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:24,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9120 states to 9120 states and 15489 transitions. [2024-11-19 22:33:24,116 INFO L78 Accepts]: Start accepts. Automaton has 9120 states and 15489 transitions. Word has length 137 [2024-11-19 22:33:24,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:33:24,116 INFO L471 AbstractCegarLoop]: Abstraction has 9120 states and 15489 transitions. [2024-11-19 22:33:24,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:24,117 INFO L276 IsEmpty]: Start isEmpty. Operand 9120 states and 15489 transitions. [2024-11-19 22:33:24,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-19 22:33:24,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:33:24,122 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:33:24,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 22:33:24,123 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:33:24,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:33:24,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1198283606, now seen corresponding path program 1 times [2024-11-19 22:33:24,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:33:24,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153784541] [2024-11-19 22:33:24,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:33:24,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:33:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:33:24,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:33:24,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:33:24,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153784541] [2024-11-19 22:33:24,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153784541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:33:24,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:33:24,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:33:24,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083187677] [2024-11-19 22:33:24,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:33:24,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:33:24,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:33:24,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:33:24,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:33:24,273 INFO L87 Difference]: Start difference. First operand 9120 states and 15489 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:24,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:33:24,459 INFO L93 Difference]: Finished difference Result 20516 states and 34824 transitions. [2024-11-19 22:33:24,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:33:24,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2024-11-19 22:33:24,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:33:24,568 INFO L225 Difference]: With dead ends: 20516 [2024-11-19 22:33:24,568 INFO L226 Difference]: Without dead ends: 14220 [2024-11-19 22:33:24,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:33:24,579 INFO L432 NwaCegarLoop]: 583 mSDtfsCounter, 153 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:33:24,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1060 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:33:24,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14220 states. [2024-11-19 22:33:24,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14220 to 14218. [2024-11-19 22:33:24,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14218 states, 14217 states have (on average 1.6875571498909756) internal successors, (23992), 14217 states have internal predecessors, (23992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:24,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14218 states to 14218 states and 23992 transitions. [2024-11-19 22:33:24,899 INFO L78 Accepts]: Start accepts. Automaton has 14218 states and 23992 transitions. Word has length 138 [2024-11-19 22:33:24,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:33:24,899 INFO L471 AbstractCegarLoop]: Abstraction has 14218 states and 23992 transitions. [2024-11-19 22:33:24,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:24,900 INFO L276 IsEmpty]: Start isEmpty. Operand 14218 states and 23992 transitions. [2024-11-19 22:33:24,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-19 22:33:24,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:33:24,903 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:33:24,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 22:33:24,903 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:33:24,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:33:24,904 INFO L85 PathProgramCache]: Analyzing trace with hash -910783766, now seen corresponding path program 1 times [2024-11-19 22:33:24,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:33:24,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005323213] [2024-11-19 22:33:24,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:33:24,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:33:24,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:33:25,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:33:25,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:33:25,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005323213] [2024-11-19 22:33:25,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005323213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:33:25,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:33:25,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 22:33:25,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242329956] [2024-11-19 22:33:25,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:33:25,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 22:33:25,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:33:25,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 22:33:25,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 22:33:25,064 INFO L87 Difference]: Start difference. First operand 14218 states and 23992 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:25,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:33:25,472 INFO L93 Difference]: Finished difference Result 41854 states and 70969 transitions. [2024-11-19 22:33:25,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 22:33:25,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2024-11-19 22:33:25,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:33:25,541 INFO L225 Difference]: With dead ends: 41854 [2024-11-19 22:33:25,541 INFO L226 Difference]: Without dead ends: 27978 [2024-11-19 22:33:25,568 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:33:25,570 INFO L432 NwaCegarLoop]: 499 mSDtfsCounter, 547 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:33:25,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 1632 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:33:25,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27978 states. [2024-11-19 22:33:26,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27978 to 21018. [2024-11-19 22:33:26,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21018 states, 21017 states have (on average 1.6862539848693914) internal successors, (35440), 21017 states have internal predecessors, (35440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:26,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21018 states to 21018 states and 35440 transitions. [2024-11-19 22:33:26,169 INFO L78 Accepts]: Start accepts. Automaton has 21018 states and 35440 transitions. Word has length 138 [2024-11-19 22:33:26,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:33:26,170 INFO L471 AbstractCegarLoop]: Abstraction has 21018 states and 35440 transitions. [2024-11-19 22:33:26,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:26,170 INFO L276 IsEmpty]: Start isEmpty. Operand 21018 states and 35440 transitions. [2024-11-19 22:33:26,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-19 22:33:26,173 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:33:26,173 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:33:26,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 22:33:26,173 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:33:26,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:33:26,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1702546546, now seen corresponding path program 1 times [2024-11-19 22:33:26,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:33:26,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641242160] [2024-11-19 22:33:26,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:33:26,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:33:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:33:26,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:33:26,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:33:26,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641242160] [2024-11-19 22:33:26,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641242160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:33:26,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:33:26,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:33:26,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467908519] [2024-11-19 22:33:26,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:33:26,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:33:26,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:33:26,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:33:26,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:33:26,455 INFO L87 Difference]: Start difference. First operand 21018 states and 35440 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:26,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:33:26,925 INFO L93 Difference]: Finished difference Result 47048 states and 79314 transitions. [2024-11-19 22:33:26,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:33:26,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2024-11-19 22:33:26,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:33:27,001 INFO L225 Difference]: With dead ends: 47048 [2024-11-19 22:33:27,001 INFO L226 Difference]: Without dead ends: 32318 [2024-11-19 22:33:27,032 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:33:27,033 INFO L432 NwaCegarLoop]: 620 mSDtfsCounter, 160 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:33:27,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1096 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:33:27,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32318 states. [2024-11-19 22:33:27,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32318 to 32316. [2024-11-19 22:33:27,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32316 states, 32315 states have (on average 1.6757542936716694) internal successors, (54152), 32315 states have internal predecessors, (54152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:28,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32316 states to 32316 states and 54152 transitions. [2024-11-19 22:33:28,036 INFO L78 Accepts]: Start accepts. Automaton has 32316 states and 54152 transitions. Word has length 138 [2024-11-19 22:33:28,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:33:28,037 INFO L471 AbstractCegarLoop]: Abstraction has 32316 states and 54152 transitions. [2024-11-19 22:33:28,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:28,037 INFO L276 IsEmpty]: Start isEmpty. Operand 32316 states and 54152 transitions. [2024-11-19 22:33:28,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-19 22:33:28,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:33:28,039 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:33:28,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 22:33:28,039 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:33:28,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:33:28,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1122229290, now seen corresponding path program 1 times [2024-11-19 22:33:28,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:33:28,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523468425] [2024-11-19 22:33:28,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:33:28,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:33:28,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:33:28,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:33:28,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:33:28,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523468425] [2024-11-19 22:33:28,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523468425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:33:28,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:33:28,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:33:28,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87343807] [2024-11-19 22:33:28,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:33:28,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:33:28,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:33:28,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:33:28,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:33:28,152 INFO L87 Difference]: Start difference. First operand 32316 states and 54152 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:28,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:33:28,950 INFO L93 Difference]: Finished difference Result 73000 states and 122814 transitions. [2024-11-19 22:33:28,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:33:28,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2024-11-19 22:33:28,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:33:29,084 INFO L225 Difference]: With dead ends: 73000 [2024-11-19 22:33:29,085 INFO L226 Difference]: Without dead ends: 49854 [2024-11-19 22:33:29,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:33:29,127 INFO L432 NwaCegarLoop]: 649 mSDtfsCounter, 167 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:33:29,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 1124 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:33:29,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49854 states. [2024-11-19 22:33:30,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49854 to 49852. [2024-11-19 22:33:30,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49852 states, 49851 states have (on average 1.668552285811719) internal successors, (83179), 49851 states have internal predecessors, (83179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:30,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49852 states to 49852 states and 83179 transitions. [2024-11-19 22:33:30,464 INFO L78 Accepts]: Start accepts. Automaton has 49852 states and 83179 transitions. Word has length 138 [2024-11-19 22:33:30,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:33:30,465 INFO L471 AbstractCegarLoop]: Abstraction has 49852 states and 83179 transitions. [2024-11-19 22:33:30,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:30,465 INFO L276 IsEmpty]: Start isEmpty. Operand 49852 states and 83179 transitions. [2024-11-19 22:33:30,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 22:33:30,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:33:30,466 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:33:30,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 22:33:30,467 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:33:30,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:33:30,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1736329343, now seen corresponding path program 1 times [2024-11-19 22:33:30,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:33:30,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902761301] [2024-11-19 22:33:30,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:33:30,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:33:30,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:33:30,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:33:30,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:33:30,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902761301] [2024-11-19 22:33:30,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902761301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:33:30,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:33:30,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:33:30,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937366403] [2024-11-19 22:33:30,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:33:30,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:33:30,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:33:30,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:33:30,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:33:30,579 INFO L87 Difference]: Start difference. First operand 49852 states and 83179 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:31,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:33:31,803 INFO L93 Difference]: Finished difference Result 110770 states and 184710 transitions. [2024-11-19 22:33:31,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:33:31,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 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 139 [2024-11-19 22:33:31,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:33:32,014 INFO L225 Difference]: With dead ends: 110770 [2024-11-19 22:33:32,015 INFO L226 Difference]: Without dead ends: 75460 [2024-11-19 22:33:32,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:33:32,188 INFO L432 NwaCegarLoop]: 607 mSDtfsCounter, 144 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1085 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:33:32,190 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1085 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:33:32,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75460 states. [2024-11-19 22:33:33,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75460 to 75458. [2024-11-19 22:33:33,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75458 states, 75457 states have (on average 1.6527691267874418) internal successors, (124713), 75457 states have internal predecessors, (124713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:34,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75458 states to 75458 states and 124713 transitions. [2024-11-19 22:33:34,043 INFO L78 Accepts]: Start accepts. Automaton has 75458 states and 124713 transitions. Word has length 139 [2024-11-19 22:33:34,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:33:34,044 INFO L471 AbstractCegarLoop]: Abstraction has 75458 states and 124713 transitions. [2024-11-19 22:33:34,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:34,049 INFO L276 IsEmpty]: Start isEmpty. Operand 75458 states and 124713 transitions. [2024-11-19 22:33:34,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 22:33:34,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:33:34,050 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:33:34,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 22:33:34,051 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:33:34,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:33:34,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1306020350, now seen corresponding path program 1 times [2024-11-19 22:33:34,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:33:34,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254027522] [2024-11-19 22:33:34,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:33:34,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:33:34,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:33:34,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:33:34,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:33:34,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254027522] [2024-11-19 22:33:34,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254027522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:33:34,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:33:34,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 22:33:34,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975700120] [2024-11-19 22:33:34,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:33:34,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 22:33:34,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:33:34,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 22:33:34,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-19 22:33:34,444 INFO L87 Difference]: Start difference. First operand 75458 states and 124713 transitions. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:35,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:33:35,519 INFO L93 Difference]: Finished difference Result 150690 states and 249061 transitions. [2024-11-19 22:33:35,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 22:33:35,519 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2024-11-19 22:33:35,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:33:35,692 INFO L225 Difference]: With dead ends: 150690 [2024-11-19 22:33:35,693 INFO L226 Difference]: Without dead ends: 75460 [2024-11-19 22:33:35,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-19 22:33:35,762 INFO L432 NwaCegarLoop]: 505 mSDtfsCounter, 450 mSDsluCounter, 1401 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 1906 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:33:35,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 1906 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:33:35,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75460 states. [2024-11-19 22:33:37,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75460 to 75458. [2024-11-19 22:33:37,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75458 states, 75457 states have (on average 1.6444862636998556) internal successors, (124088), 75457 states have internal predecessors, (124088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:37,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75458 states to 75458 states and 124088 transitions. [2024-11-19 22:33:37,390 INFO L78 Accepts]: Start accepts. Automaton has 75458 states and 124088 transitions. Word has length 140 [2024-11-19 22:33:37,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:33:37,391 INFO L471 AbstractCegarLoop]: Abstraction has 75458 states and 124088 transitions. [2024-11-19 22:33:37,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:37,391 INFO L276 IsEmpty]: Start isEmpty. Operand 75458 states and 124088 transitions. [2024-11-19 22:33:37,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-19 22:33:37,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:33:37,393 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:33:37,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 22:33:37,394 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:33:37,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:33:37,394 INFO L85 PathProgramCache]: Analyzing trace with hash -590810265, now seen corresponding path program 1 times [2024-11-19 22:33:37,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:33:37,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521447179] [2024-11-19 22:33:37,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:33:37,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:33:37,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:33:38,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:33:38,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:33:38,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521447179] [2024-11-19 22:33:38,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521447179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:33:38,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:33:38,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 22:33:38,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039047179] [2024-11-19 22:33:38,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:33:38,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 22:33:38,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:33:38,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 22:33:38,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-19 22:33:38,184 INFO L87 Difference]: Start difference. First operand 75458 states and 124088 transitions. Second operand has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:39,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:33:39,485 INFO L93 Difference]: Finished difference Result 220690 states and 363361 transitions. [2024-11-19 22:33:39,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 22:33:39,485 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2024-11-19 22:33:39,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:33:39,717 INFO L225 Difference]: With dead ends: 220690 [2024-11-19 22:33:39,717 INFO L226 Difference]: Without dead ends: 145460 [2024-11-19 22:33:39,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-19 22:33:39,802 INFO L432 NwaCegarLoop]: 495 mSDtfsCounter, 150 mSDsluCounter, 1892 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 2387 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:33:39,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 2387 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:33:40,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145460 states. [2024-11-19 22:33:42,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145460 to 145458. [2024-11-19 22:33:42,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145458 states, 145457 states have (on average 1.6336168077163697) internal successors, (237621), 145457 states have internal predecessors, (237621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:42,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145458 states to 145458 states and 237621 transitions. [2024-11-19 22:33:42,951 INFO L78 Accepts]: Start accepts. Automaton has 145458 states and 237621 transitions. Word has length 143 [2024-11-19 22:33:42,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:33:42,951 INFO L471 AbstractCegarLoop]: Abstraction has 145458 states and 237621 transitions. [2024-11-19 22:33:42,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:42,952 INFO L276 IsEmpty]: Start isEmpty. Operand 145458 states and 237621 transitions. [2024-11-19 22:33:42,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-19 22:33:42,954 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:33:42,954 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:33:42,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 22:33:42,954 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:33:42,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:33:42,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1566594325, now seen corresponding path program 1 times [2024-11-19 22:33:42,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:33:42,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126735902] [2024-11-19 22:33:42,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:33:42,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:33:43,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:33:43,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:33:43,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:33:43,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126735902] [2024-11-19 22:33:43,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126735902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:33:43,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:33:43,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 22:33:43,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906938228] [2024-11-19 22:33:43,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:33:43,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:33:43,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:33:43,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:33:43,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:33:43,942 INFO L87 Difference]: Start difference. First operand 145458 states and 237621 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:45,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:33:45,000 INFO L93 Difference]: Finished difference Result 151268 states and 245366 transitions. [2024-11-19 22:33:45,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 22:33:45,001 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 0 states have call successors, (0), 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 144 [2024-11-19 22:33:45,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:33:45,239 INFO L225 Difference]: With dead ends: 151268 [2024-11-19 22:33:45,239 INFO L226 Difference]: Without dead ends: 151266 [2024-11-19 22:33:45,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:33:45,279 INFO L432 NwaCegarLoop]: 504 mSDtfsCounter, 0 mSDsluCounter, 1497 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2001 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:33:45,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2001 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:33:45,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151266 states. [2024-11-19 22:33:47,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151266 to 151266. [2024-11-19 22:33:48,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151266 states, 151265 states have (on average 1.609109840346412) internal successors, (243402), 151265 states have internal predecessors, (243402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:48,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151266 states to 151266 states and 243402 transitions. [2024-11-19 22:33:48,541 INFO L78 Accepts]: Start accepts. Automaton has 151266 states and 243402 transitions. Word has length 144 [2024-11-19 22:33:48,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:33:48,542 INFO L471 AbstractCegarLoop]: Abstraction has 151266 states and 243402 transitions. [2024-11-19 22:33:48,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:48,542 INFO L276 IsEmpty]: Start isEmpty. Operand 151266 states and 243402 transitions. [2024-11-19 22:33:48,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-19 22:33:48,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:33:48,546 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:33:48,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 22:33:48,547 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:33:48,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:33:48,547 INFO L85 PathProgramCache]: Analyzing trace with hash 404142113, now seen corresponding path program 1 times [2024-11-19 22:33:48,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:33:48,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782904461] [2024-11-19 22:33:48,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:33:48,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:33:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:33:48,799 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-19 22:33:48,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:33:48,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782904461] [2024-11-19 22:33:48,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782904461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:33:48,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:33:48,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 22:33:48,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636269424] [2024-11-19 22:33:48,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:33:48,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 22:33:48,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:33:48,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 22:33:48,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 22:33:48,801 INFO L87 Difference]: Start difference. First operand 151266 states and 243402 transitions. Second operand has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 6 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:52,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:33:52,480 INFO L93 Difference]: Finished difference Result 415594 states and 670531 transitions. [2024-11-19 22:33:52,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 22:33:52,481 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 6 states have internal predecessors, (167), 0 states have call successors, (0), 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 182 [2024-11-19 22:33:52,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:33:53,096 INFO L225 Difference]: With dead ends: 415594 [2024-11-19 22:33:53,096 INFO L226 Difference]: Without dead ends: 348492 [2024-11-19 22:33:53,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-19 22:33:53,182 INFO L432 NwaCegarLoop]: 692 mSDtfsCounter, 1105 mSDsluCounter, 2170 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1105 SdHoareTripleChecker+Valid, 2862 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:33:53,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1105 Valid, 2862 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:33:53,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348492 states. [2024-11-19 22:33:57,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348492 to 243780. [2024-11-19 22:33:58,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243780 states, 243779 states have (on average 1.6066027016272937) internal successors, (391656), 243779 states have internal predecessors, (391656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:58,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243780 states to 243780 states and 391656 transitions. [2024-11-19 22:33:58,656 INFO L78 Accepts]: Start accepts. Automaton has 243780 states and 391656 transitions. Word has length 182 [2024-11-19 22:33:58,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:33:58,657 INFO L471 AbstractCegarLoop]: Abstraction has 243780 states and 391656 transitions. [2024-11-19 22:33:58,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 6 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:33:58,657 INFO L276 IsEmpty]: Start isEmpty. Operand 243780 states and 391656 transitions. [2024-11-19 22:33:58,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-19 22:33:58,660 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:33:58,660 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:33:58,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 22:33:58,661 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:33:58,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:33:58,661 INFO L85 PathProgramCache]: Analyzing trace with hash -100120827, now seen corresponding path program 1 times [2024-11-19 22:33:58,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:33:58,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177628801] [2024-11-19 22:33:58,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:33:58,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:33:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:33:59,685 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-19 22:33:59,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:33:59,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177628801] [2024-11-19 22:33:59,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177628801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:33:59,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:33:59,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 22:33:59,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357227956] [2024-11-19 22:33:59,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:33:59,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 22:33:59,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:33:59,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 22:33:59,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 22:33:59,687 INFO L87 Difference]: Start difference. First operand 243780 states and 391656 transitions. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:34:03,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:34:03,413 INFO L93 Difference]: Finished difference Result 458706 states and 740287 transitions. [2024-11-19 22:34:03,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 22:34:03,414 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 0 states have call successors, (0), 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 182 [2024-11-19 22:34:03,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:34:04,240 INFO L225 Difference]: With dead ends: 458706 [2024-11-19 22:34:04,240 INFO L226 Difference]: Without dead ends: 391604 [2024-11-19 22:34:04,380 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-19 22:34:04,380 INFO L432 NwaCegarLoop]: 694 mSDtfsCounter, 1195 mSDsluCounter, 2203 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 2897 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:34:04,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1195 Valid, 2897 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:34:04,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391604 states.