./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.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 648a34748ee6f317001c61f0628c2e00b2100c77ff87e7d85b52ec2f91d6d096 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:42:20,411 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:42:20,492 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:42:20,496 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:42:20,499 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:42:20,533 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:42:20,533 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:42:20,534 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:42:20,534 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:42:20,535 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:42:20,535 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:42:20,536 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:42:20,536 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:42:20,537 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:42:20,537 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:42:20,539 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:42:20,540 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:42:20,540 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:42:20,540 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:42:20,541 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:42:20,541 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:42:20,545 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:42:20,546 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:42:20,546 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:42:20,546 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:42:20,546 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:42:20,546 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:42:20,547 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:42:20,547 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:42:20,547 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:42:20,547 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:42:20,548 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:42:20,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:42:20,548 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:42:20,548 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:42:20,548 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:42:20,549 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:42:20,549 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:42:20,550 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:42:20,551 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:42:20,551 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:42:20,552 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:42:20,552 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 648a34748ee6f317001c61f0628c2e00b2100c77ff87e7d85b52ec2f91d6d096 [2024-11-18 14:42:20,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:42:20,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:42:20,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:42:20,831 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:42:20,832 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:42:20,833 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c [2024-11-18 14:42:22,316 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:42:22,530 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:42:22,531 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c [2024-11-18 14:42:22,547 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a6ba0b41/5d6f460705ce400bafcf07efc4a550fb/FLAG4b22ddfec [2024-11-18 14:42:22,887 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a6ba0b41/5d6f460705ce400bafcf07efc4a550fb [2024-11-18 14:42:22,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:42:22,890 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:42:22,891 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:42:22,892 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:42:22,896 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:42:22,897 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:42:22" (1/1) ... [2024-11-18 14:42:22,897 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3936a0b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:42:22, skipping insertion in model container [2024-11-18 14:42:22,898 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:42:22" (1/1) ... [2024-11-18 14:42:22,937 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:42:23,219 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_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c[16824,16837] [2024-11-18 14:42:23,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:42:23,234 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:42:23,316 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_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c[16824,16837] [2024-11-18 14:42:23,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:42:23,349 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:42:23,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:42:23 WrapperNode [2024-11-18 14:42:23,350 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:42:23,351 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:42:23,352 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:42:23,353 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:42:23,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:42:23" (1/1) ... [2024-11-18 14:42:23,377 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:42:23" (1/1) ... [2024-11-18 14:42:23,439 INFO L138 Inliner]: procedures = 25, calls = 17, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 453 [2024-11-18 14:42:23,439 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:42:23,440 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:42:23,440 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:42:23,440 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:42:23,455 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:42:23" (1/1) ... [2024-11-18 14:42:23,459 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:42:23" (1/1) ... [2024-11-18 14:42:23,471 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:42:23" (1/1) ... [2024-11-18 14:42:23,505 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]. [2024-11-18 14:42:23,505 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:42:23" (1/1) ... [2024-11-18 14:42:23,506 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:42:23" (1/1) ... [2024-11-18 14:42:23,518 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:42:23" (1/1) ... [2024-11-18 14:42:23,531 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:42:23" (1/1) ... [2024-11-18 14:42:23,537 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:42:23" (1/1) ... [2024-11-18 14:42:23,539 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:42:23" (1/1) ... [2024-11-18 14:42:23,547 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:42:23,549 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:42:23,550 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:42:23,550 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:42:23,551 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:42:23" (1/1) ... [2024-11-18 14:42:23,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:42:23,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:42:23,585 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) [2024-11-18 14:42:23,590 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 [2024-11-18 14:42:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:42:23,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:42:23,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:42:23,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:42:23,761 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:42:23,763 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:42:24,387 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-18 14:42:24,388 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:42:24,434 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:42:24,434 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 14:42:24,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:42:24 BoogieIcfgContainer [2024-11-18 14:42:24,435 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:42:24,448 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:42:24,449 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:42:24,454 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:42:24,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:42:22" (1/3) ... [2024-11-18 14:42:24,460 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5d05b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:42:24, skipping insertion in model container [2024-11-18 14:42:24,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:42:23" (2/3) ... [2024-11-18 14:42:24,460 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5d05b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:42:24, skipping insertion in model container [2024-11-18 14:42:24,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:42:24" (3/3) ... [2024-11-18 14:42:24,461 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c [2024-11-18 14:42:24,479 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:42:24,480 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:42:24,579 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:42:24,585 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;@409854, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:42:24,585 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:42:24,590 INFO L276 IsEmpty]: Start isEmpty. Operand has 120 states, 118 states have (on average 1.7627118644067796) internal successors, (208), 119 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:24,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-18 14:42:24,600 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:42:24,601 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] [2024-11-18 14:42:24,602 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:42:24,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:42:24,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1199138120, now seen corresponding path program 1 times [2024-11-18 14:42:24,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:42:24,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138778314] [2024-11-18 14:42:24,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:42:24,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:42:24,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:42:25,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:42:25,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:42:25,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138778314] [2024-11-18 14:42:25,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138778314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:42:25,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:42:25,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:42:25,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813540453] [2024-11-18 14:42:25,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:42:25,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:42:25,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:42:25,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:42:25,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:42:25,185 INFO L87 Difference]: Start difference. First operand has 120 states, 118 states have (on average 1.7627118644067796) internal successors, (208), 119 states have internal predecessors, (208), 0 states have call successors, (0), 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 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:25,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:42:25,315 INFO L93 Difference]: Finished difference Result 197 states and 332 transitions. [2024-11-18 14:42:25,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:42:25,321 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2024-11-18 14:42:25,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:42:25,329 INFO L225 Difference]: With dead ends: 197 [2024-11-18 14:42:25,329 INFO L226 Difference]: Without dead ends: 116 [2024-11-18 14:42:25,332 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 [2024-11-18 14:42:25,338 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 0 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:42:25,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 766 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:42:25,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-18 14:42:25,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-18 14:42:25,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 1.391304347826087) internal successors, (160), 115 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:25,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 160 transitions. [2024-11-18 14:42:25,371 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 160 transitions. Word has length 37 [2024-11-18 14:42:25,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:42:25,371 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 160 transitions. [2024-11-18 14:42:25,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:25,372 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 160 transitions. [2024-11-18 14:42:25,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-18 14:42:25,374 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:42:25,375 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] [2024-11-18 14:42:25,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:42:25,375 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:42:25,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:42:25,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1556169746, now seen corresponding path program 1 times [2024-11-18 14:42:25,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:42:25,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758526672] [2024-11-18 14:42:25,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:42:25,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:42:25,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:42:25,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:42:25,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:42:25,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758526672] [2024-11-18 14:42:25,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758526672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:42:25,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:42:25,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:42:25,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519116752] [2024-11-18 14:42:25,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:42:25,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:42:25,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:42:25,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:42:25,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:42:25,554 INFO L87 Difference]: Start difference. First operand 116 states and 160 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:25,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:42:25,606 INFO L93 Difference]: Finished difference Result 246 states and 372 transitions. [2024-11-18 14:42:25,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:42:25,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-18 14:42:25,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:42:25,612 INFO L225 Difference]: With dead ends: 246 [2024-11-18 14:42:25,613 INFO L226 Difference]: Without dead ends: 177 [2024-11-18 14:42:25,613 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 [2024-11-18 14:42:25,614 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 97 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 354 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 [2024-11-18 14:42:25,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 354 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:42:25,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-18 14:42:25,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 175. [2024-11-18 14:42:25,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 174 states have (on average 1.4770114942528736) internal successors, (257), 174 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:25,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 257 transitions. [2024-11-18 14:42:25,631 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 257 transitions. Word has length 77 [2024-11-18 14:42:25,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:42:25,631 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 257 transitions. [2024-11-18 14:42:25,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:25,632 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 257 transitions. [2024-11-18 14:42:25,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-18 14:42:25,634 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:42:25,634 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] [2024-11-18 14:42:25,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:42:25,635 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:42:25,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:42:25,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1133879341, now seen corresponding path program 1 times [2024-11-18 14:42:25,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:42:25,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019206163] [2024-11-18 14:42:25,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:42:25,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:42:25,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:42:25,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:42:25,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:42:25,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019206163] [2024-11-18 14:42:25,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019206163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:42:25,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:42:25,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:42:25,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813960684] [2024-11-18 14:42:25,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:42:25,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:42:25,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:42:25,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:42:25,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:42:25,783 INFO L87 Difference]: Start difference. First operand 175 states and 257 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:25,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:42:25,822 INFO L93 Difference]: Finished difference Result 415 states and 649 transitions. [2024-11-18 14:42:25,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:42:25,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-18 14:42:25,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:42:25,827 INFO L225 Difference]: With dead ends: 415 [2024-11-18 14:42:25,829 INFO L226 Difference]: Without dead ends: 287 [2024-11-18 14:42:25,830 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 [2024-11-18 14:42:25,831 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 93 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 351 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 [2024-11-18 14:42:25,831 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 351 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:42:25,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-11-18 14:42:25,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 285. [2024-11-18 14:42:25,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 284 states have (on average 1.5352112676056338) internal successors, (436), 284 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:25,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 436 transitions. [2024-11-18 14:42:25,861 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 436 transitions. Word has length 77 [2024-11-18 14:42:25,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:42:25,862 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 436 transitions. [2024-11-18 14:42:25,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:25,863 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 436 transitions. [2024-11-18 14:42:25,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-18 14:42:25,864 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:42:25,864 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] [2024-11-18 14:42:25,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:42:25,865 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:42:25,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:42:25,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1733196780, now seen corresponding path program 1 times [2024-11-18 14:42:25,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:42:25,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397541285] [2024-11-18 14:42:25,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:42:25,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:42:25,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:42:26,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:42:26,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:42:26,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397541285] [2024-11-18 14:42:26,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397541285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:42:26,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:42:26,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:42:26,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119815151] [2024-11-18 14:42:26,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:42:26,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:42:26,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:42:26,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:42:26,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:42:26,023 INFO L87 Difference]: Start difference. First operand 285 states and 436 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:26,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:42:26,055 INFO L93 Difference]: Finished difference Result 729 states and 1158 transitions. [2024-11-18 14:42:26,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:42:26,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-18 14:42:26,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:42:26,060 INFO L225 Difference]: With dead ends: 729 [2024-11-18 14:42:26,060 INFO L226 Difference]: Without dead ends: 491 [2024-11-18 14:42:26,062 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 [2024-11-18 14:42:26,063 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 81 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 322 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 [2024-11-18 14:42:26,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 322 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:42:26,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2024-11-18 14:42:26,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 489. [2024-11-18 14:42:26,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 488 states have (on average 1.5655737704918034) internal successors, (764), 488 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:26,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 764 transitions. [2024-11-18 14:42:26,098 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 764 transitions. Word has length 77 [2024-11-18 14:42:26,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:42:26,098 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 764 transitions. [2024-11-18 14:42:26,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:26,099 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 764 transitions. [2024-11-18 14:42:26,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-18 14:42:26,099 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:42:26,100 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] [2024-11-18 14:42:26,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:42:26,100 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:42:26,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:42:26,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1667514837, now seen corresponding path program 1 times [2024-11-18 14:42:26,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:42:26,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524536155] [2024-11-18 14:42:26,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:42:26,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:42:26,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:42:26,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:42:26,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:42:26,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524536155] [2024-11-18 14:42:26,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524536155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:42:26,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:42:26,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:42:26,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848065396] [2024-11-18 14:42:26,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:42:26,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:42:26,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:42:26,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:42:26,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:42:26,426 INFO L87 Difference]: Start difference. First operand 489 states and 764 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 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) [2024-11-18 14:42:26,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:42:26,703 INFO L93 Difference]: Finished difference Result 3583 states and 5783 transitions. [2024-11-18 14:42:26,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:42:26,704 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 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 [2024-11-18 14:42:26,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:42:26,722 INFO L225 Difference]: With dead ends: 3583 [2024-11-18 14:42:26,722 INFO L226 Difference]: Without dead ends: 3141 [2024-11-18 14:42:26,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-11-18 14:42:26,726 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 1834 mSDsluCounter, 1232 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1834 SdHoareTripleChecker+Valid, 1388 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:42:26,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1834 Valid, 1388 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:42:26,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3141 states. [2024-11-18 14:42:26,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3141 to 929. [2024-11-18 14:42:26,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 928 states have (on average 1.5775862068965518) internal successors, (1464), 928 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:26,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1464 transitions. [2024-11-18 14:42:26,801 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1464 transitions. Word has length 77 [2024-11-18 14:42:26,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:42:26,802 INFO L471 AbstractCegarLoop]: Abstraction has 929 states and 1464 transitions. [2024-11-18 14:42:26,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 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) [2024-11-18 14:42:26,803 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1464 transitions. [2024-11-18 14:42:26,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-18 14:42:26,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:42:26,809 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:42:26,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:42:26,810 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:42:26,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:42:26,810 INFO L85 PathProgramCache]: Analyzing trace with hash -229970796, now seen corresponding path program 1 times [2024-11-18 14:42:26,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:42:26,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272138487] [2024-11-18 14:42:26,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:42:26,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:42:26,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:42:27,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:42:27,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:42:27,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272138487] [2024-11-18 14:42:27,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272138487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:42:27,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:42:27,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:42:27,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054354155] [2024-11-18 14:42:27,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:42:27,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:42:27,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:42:27,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:42:27,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:42:27,158 INFO L87 Difference]: Start difference. First operand 929 states and 1464 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:27,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:42:27,193 INFO L93 Difference]: Finished difference Result 979 states and 1529 transitions. [2024-11-18 14:42:27,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:42:27,194 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-18 14:42:27,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:42:27,199 INFO L225 Difference]: With dead ends: 979 [2024-11-18 14:42:27,200 INFO L226 Difference]: Without dead ends: 977 [2024-11-18 14:42:27,201 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 [2024-11-18 14:42:27,203 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 0 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:42:27,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 620 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:42:27,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2024-11-18 14:42:27,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2024-11-18 14:42:27,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 976 states have (on average 1.5491803278688525) internal successors, (1512), 976 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:27,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1512 transitions. [2024-11-18 14:42:27,231 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1512 transitions. Word has length 78 [2024-11-18 14:42:27,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:42:27,232 INFO L471 AbstractCegarLoop]: Abstraction has 977 states and 1512 transitions. [2024-11-18 14:42:27,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:27,232 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1512 transitions. [2024-11-18 14:42:27,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-18 14:42:27,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:42:27,235 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:42:27,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:42:27,236 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:42:27,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:42:27,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1513418637, now seen corresponding path program 1 times [2024-11-18 14:42:27,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:42:27,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131949053] [2024-11-18 14:42:27,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:42:27,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:42:27,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:42:27,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:42:27,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:42:27,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131949053] [2024-11-18 14:42:27,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131949053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:42:27,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:42:27,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:42:27,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381760839] [2024-11-18 14:42:27,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:42:27,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:42:27,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:42:27,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:42:27,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:42:27,351 INFO L87 Difference]: Start difference. First operand 977 states and 1512 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:27,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:42:27,393 INFO L93 Difference]: Finished difference Result 2717 states and 4242 transitions. [2024-11-18 14:42:27,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:42:27,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-18 14:42:27,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:42:27,401 INFO L225 Difference]: With dead ends: 2717 [2024-11-18 14:42:27,402 INFO L226 Difference]: Without dead ends: 1787 [2024-11-18 14:42:27,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:42:27,406 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 74 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:42:27,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 270 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:42:27,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1787 states. [2024-11-18 14:42:27,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1787 to 1785. [2024-11-18 14:42:27,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1785 states, 1784 states have (on average 1.547085201793722) internal successors, (2760), 1784 states have internal predecessors, (2760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:27,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1785 states to 1785 states and 2760 transitions. [2024-11-18 14:42:27,462 INFO L78 Accepts]: Start accepts. Automaton has 1785 states and 2760 transitions. Word has length 79 [2024-11-18 14:42:27,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:42:27,463 INFO L471 AbstractCegarLoop]: Abstraction has 1785 states and 2760 transitions. [2024-11-18 14:42:27,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:27,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1785 states and 2760 transitions. [2024-11-18 14:42:27,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-18 14:42:27,465 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:42:27,465 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:42:27,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:42:27,465 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:42:27,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:42:27,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1039605999, now seen corresponding path program 1 times [2024-11-18 14:42:27,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:42:27,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475705891] [2024-11-18 14:42:27,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:42:27,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:42:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:42:27,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:42:27,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:42:27,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475705891] [2024-11-18 14:42:27,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475705891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:42:27,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:42:27,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:42:27,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108873221] [2024-11-18 14:42:27,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:42:27,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:42:27,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:42:27,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:42:27,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:42:27,546 INFO L87 Difference]: Start difference. First operand 1785 states and 2760 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:27,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:42:27,633 INFO L93 Difference]: Finished difference Result 3535 states and 5501 transitions. [2024-11-18 14:42:27,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:42:27,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-18 14:42:27,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:42:27,644 INFO L225 Difference]: With dead ends: 3535 [2024-11-18 14:42:27,644 INFO L226 Difference]: Without dead ends: 2605 [2024-11-18 14:42:27,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:42:27,646 INFO L432 NwaCegarLoop]: 254 mSDtfsCounter, 101 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 366 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 [2024-11-18 14:42:27,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 366 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:42:27,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2605 states. [2024-11-18 14:42:27,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2605 to 2603. [2024-11-18 14:42:27,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2603 states, 2602 states have (on average 1.544196771714066) internal successors, (4018), 2602 states have internal predecessors, (4018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:27,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2603 states to 2603 states and 4018 transitions. [2024-11-18 14:42:27,720 INFO L78 Accepts]: Start accepts. Automaton has 2603 states and 4018 transitions. Word has length 79 [2024-11-18 14:42:27,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:42:27,721 INFO L471 AbstractCegarLoop]: Abstraction has 2603 states and 4018 transitions. [2024-11-18 14:42:27,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:27,721 INFO L276 IsEmpty]: Start isEmpty. Operand 2603 states and 4018 transitions. [2024-11-18 14:42:27,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 14:42:27,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:42:27,722 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:42:27,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:42:27,722 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:42:27,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:42:27,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1131505421, now seen corresponding path program 1 times [2024-11-18 14:42:27,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:42:27,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030771978] [2024-11-18 14:42:27,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:42:27,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:42:27,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:42:27,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:42:27,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:42:27,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030771978] [2024-11-18 14:42:27,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030771978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:42:27,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:42:27,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:42:27,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464881394] [2024-11-18 14:42:27,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:42:27,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:42:27,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:42:27,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:42:27,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:42:27,792 INFO L87 Difference]: Start difference. First operand 2603 states and 4018 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:27,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:42:27,886 INFO L93 Difference]: Finished difference Result 7327 states and 11284 transitions. [2024-11-18 14:42:27,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:42:27,887 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-18 14:42:27,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:42:27,905 INFO L225 Difference]: With dead ends: 7327 [2024-11-18 14:42:27,905 INFO L226 Difference]: Without dead ends: 4773 [2024-11-18 14:42:27,911 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 [2024-11-18 14:42:27,911 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 85 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 345 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 [2024-11-18 14:42:27,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 345 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:42:27,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4773 states. [2024-11-18 14:42:28,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4773 to 4771. [2024-11-18 14:42:28,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4771 states, 4770 states have (on average 1.5232704402515724) internal successors, (7266), 4770 states have internal predecessors, (7266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:28,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4771 states to 4771 states and 7266 transitions. [2024-11-18 14:42:28,094 INFO L78 Accepts]: Start accepts. Automaton has 4771 states and 7266 transitions. Word has length 80 [2024-11-18 14:42:28,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:42:28,094 INFO L471 AbstractCegarLoop]: Abstraction has 4771 states and 7266 transitions. [2024-11-18 14:42:28,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:28,095 INFO L276 IsEmpty]: Start isEmpty. Operand 4771 states and 7266 transitions. [2024-11-18 14:42:28,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 14:42:28,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:42:28,096 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:42:28,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:42:28,096 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:42:28,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:42:28,096 INFO L85 PathProgramCache]: Analyzing trace with hash -225664531, now seen corresponding path program 1 times [2024-11-18 14:42:28,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:42:28,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172563410] [2024-11-18 14:42:28,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:42:28,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:42:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:42:28,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:42:28,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:42:28,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172563410] [2024-11-18 14:42:28,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172563410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:42:28,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:42:28,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:42:28,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524905767] [2024-11-18 14:42:28,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:42:28,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:42:28,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:42:28,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:42:28,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:42:28,166 INFO L87 Difference]: Start difference. First operand 4771 states and 7266 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:28,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:42:28,315 INFO L93 Difference]: Finished difference Result 13447 states and 20356 transitions. [2024-11-18 14:42:28,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:42:28,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-18 14:42:28,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:42:28,347 INFO L225 Difference]: With dead ends: 13447 [2024-11-18 14:42:28,347 INFO L226 Difference]: Without dead ends: 8725 [2024-11-18 14:42:28,356 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 [2024-11-18 14:42:28,357 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 89 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 358 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 [2024-11-18 14:42:28,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 358 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:42:28,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8725 states. [2024-11-18 14:42:28,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8725 to 8723. [2024-11-18 14:42:28,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8723 states, 8722 states have (on average 1.4952992432928227) internal successors, (13042), 8722 states have internal predecessors, (13042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:28,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8723 states to 8723 states and 13042 transitions. [2024-11-18 14:42:28,692 INFO L78 Accepts]: Start accepts. Automaton has 8723 states and 13042 transitions. Word has length 80 [2024-11-18 14:42:28,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:42:28,692 INFO L471 AbstractCegarLoop]: Abstraction has 8723 states and 13042 transitions. [2024-11-18 14:42:28,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:28,693 INFO L276 IsEmpty]: Start isEmpty. Operand 8723 states and 13042 transitions. [2024-11-18 14:42:28,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-18 14:42:28,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:42:28,699 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 14:42:28,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 14:42:28,700 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:42:28,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:42:28,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1666554688, now seen corresponding path program 1 times [2024-11-18 14:42:28,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:42:28,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378798455] [2024-11-18 14:42:28,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:42:28,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:42:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:42:28,860 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:42:28,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:42:28,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378798455] [2024-11-18 14:42:28,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378798455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:42:28,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:42:28,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:42:28,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26312500] [2024-11-18 14:42:28,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:42:28,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:42:28,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:42:28,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:42:28,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:42:28,863 INFO L87 Difference]: Start difference. First operand 8723 states and 13042 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:29,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:42:29,063 INFO L93 Difference]: Finished difference Result 17399 states and 26036 transitions. [2024-11-18 14:42:29,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:42:29,064 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2024-11-18 14:42:29,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:42:29,100 INFO L225 Difference]: With dead ends: 17399 [2024-11-18 14:42:29,101 INFO L226 Difference]: Without dead ends: 8725 [2024-11-18 14:42:29,110 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 [2024-11-18 14:42:29,111 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 78 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:42:29,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 350 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:42:29,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8725 states. [2024-11-18 14:42:29,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8725 to 8723. [2024-11-18 14:42:29,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8723 states, 8722 states have (on average 1.4842925934418711) internal successors, (12946), 8722 states have internal predecessors, (12946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:29,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8723 states to 8723 states and 12946 transitions. [2024-11-18 14:42:29,362 INFO L78 Accepts]: Start accepts. Automaton has 8723 states and 12946 transitions. Word has length 110 [2024-11-18 14:42:29,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:42:29,362 INFO L471 AbstractCegarLoop]: Abstraction has 8723 states and 12946 transitions. [2024-11-18 14:42:29,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:29,363 INFO L276 IsEmpty]: Start isEmpty. Operand 8723 states and 12946 transitions. [2024-11-18 14:42:29,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-18 14:42:29,366 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:42:29,366 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 14:42:29,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 14:42:29,366 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:42:29,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:42:29,367 INFO L85 PathProgramCache]: Analyzing trace with hash -267049921, now seen corresponding path program 1 times [2024-11-18 14:42:29,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:42:29,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757203686] [2024-11-18 14:42:29,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:42:29,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:42:29,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:42:29,529 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:42:29,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:42:29,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757203686] [2024-11-18 14:42:29,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757203686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:42:29,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:42:29,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:42:29,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665506050] [2024-11-18 14:42:29,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:42:29,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:42:29,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:42:29,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:42:29,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:42:29,531 INFO L87 Difference]: Start difference. First operand 8723 states and 12946 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:29,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:42:29,618 INFO L93 Difference]: Finished difference Result 13063 states and 19396 transitions. [2024-11-18 14:42:29,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:42:29,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2024-11-18 14:42:29,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:42:29,628 INFO L225 Difference]: With dead ends: 13063 [2024-11-18 14:42:29,629 INFO L226 Difference]: Without dead ends: 4389 [2024-11-18 14:42:29,639 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 [2024-11-18 14:42:29,639 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 72 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:42:29,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 331 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:42:29,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4389 states. [2024-11-18 14:42:29,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4389 to 4387. [2024-11-18 14:42:29,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4387 states, 4386 states have (on average 1.4705882352941178) internal successors, (6450), 4386 states have internal predecessors, (6450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:29,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4387 states to 4387 states and 6450 transitions. [2024-11-18 14:42:29,762 INFO L78 Accepts]: Start accepts. Automaton has 4387 states and 6450 transitions. Word has length 110 [2024-11-18 14:42:29,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:42:29,762 INFO L471 AbstractCegarLoop]: Abstraction has 4387 states and 6450 transitions. [2024-11-18 14:42:29,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:29,763 INFO L276 IsEmpty]: Start isEmpty. Operand 4387 states and 6450 transitions. [2024-11-18 14:42:29,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-18 14:42:29,766 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:42:29,766 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 14:42:29,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 14:42:29,766 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:42:29,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:42:29,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1752073410, now seen corresponding path program 1 times [2024-11-18 14:42:29,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:42:29,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373452374] [2024-11-18 14:42:29,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:42:29,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:42:29,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:42:30,008 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-18 14:42:30,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:42:30,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373452374] [2024-11-18 14:42:30,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373452374] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:42:30,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713363750] [2024-11-18 14:42:30,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:42:30,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:42:30,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:42:30,012 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:42:30,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 14:42:30,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:42:30,181 INFO L255 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-18 14:42:30,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:42:30,436 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-18 14:42:30,436 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:42:31,053 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-18 14:42:31,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713363750] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:42:31,054 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:42:31,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 7] total 15 [2024-11-18 14:42:31,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265929070] [2024-11-18 14:42:31,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:42:31,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-18 14:42:31,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:42:31,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-18 14:42:31,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210 [2024-11-18 14:42:31,056 INFO L87 Difference]: Start difference. First operand 4387 states and 6450 transitions. Second operand has 15 states, 15 states have (on average 19.2) internal successors, (288), 15 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:31,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:42:31,333 INFO L93 Difference]: Finished difference Result 12907 states and 19158 transitions. [2024-11-18 14:42:31,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 14:42:31,334 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 19.2) internal successors, (288), 15 states have internal predecessors, (288), 0 states have call successors, (0), 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 110 [2024-11-18 14:42:31,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:42:31,353 INFO L225 Difference]: With dead ends: 12907 [2024-11-18 14:42:31,353 INFO L226 Difference]: Without dead ends: 9929 [2024-11-18 14:42:31,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=141, Unknown=0, NotChecked=0, Total=240 [2024-11-18 14:42:31,360 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 589 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 1640 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:42:31,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 1640 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:42:31,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9929 states. [2024-11-18 14:42:31,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9929 to 9923. [2024-11-18 14:42:31,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9923 states, 9922 states have (on average 1.4724853860108849) internal successors, (14610), 9922 states have internal predecessors, (14610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:31,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9923 states to 9923 states and 14610 transitions. [2024-11-18 14:42:31,673 INFO L78 Accepts]: Start accepts. Automaton has 9923 states and 14610 transitions. Word has length 110 [2024-11-18 14:42:31,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:42:31,673 INFO L471 AbstractCegarLoop]: Abstraction has 9923 states and 14610 transitions. [2024-11-18 14:42:31,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 19.2) internal successors, (288), 15 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:31,673 INFO L276 IsEmpty]: Start isEmpty. Operand 9923 states and 14610 transitions. [2024-11-18 14:42:31,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-18 14:42:31,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:42:31,676 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 14:42:31,697 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 14:42:31,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-18 14:42:31,878 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:42:31,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:42:31,878 INFO L85 PathProgramCache]: Analyzing trace with hash -988398793, now seen corresponding path program 1 times [2024-11-18 14:42:31,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:42:31,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644563107] [2024-11-18 14:42:31,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:42:31,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:42:31,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:42:32,122 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-18 14:42:32,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:42:32,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644563107] [2024-11-18 14:42:32,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644563107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:42:32,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:42:32,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:42:32,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182461123] [2024-11-18 14:42:32,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:42:32,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:42:32,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:42:32,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:42:32,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:42:32,124 INFO L87 Difference]: Start difference. First operand 9923 states and 14610 transitions. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:32,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:42:32,801 INFO L93 Difference]: Finished difference Result 39553 states and 58497 transitions. [2024-11-18 14:42:32,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:42:32,802 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2024-11-18 14:42:32,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:42:32,867 INFO L225 Difference]: With dead ends: 39553 [2024-11-18 14:42:32,867 INFO L226 Difference]: Without dead ends: 34447 [2024-11-18 14:42:32,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-18 14:42:32,880 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 1140 mSDsluCounter, 1455 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 1735 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:42:32,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1140 Valid, 1735 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:42:32,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34447 states. [2024-11-18 14:42:33,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34447 to 14787. [2024-11-18 14:42:33,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14787 states, 14786 states have (on average 1.4701744893818478) internal successors, (21738), 14786 states have internal predecessors, (21738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:33,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14787 states to 14787 states and 21738 transitions. [2024-11-18 14:42:33,463 INFO L78 Accepts]: Start accepts. Automaton has 14787 states and 21738 transitions. Word has length 111 [2024-11-18 14:42:33,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:42:33,464 INFO L471 AbstractCegarLoop]: Abstraction has 14787 states and 21738 transitions. [2024-11-18 14:42:33,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:33,464 INFO L276 IsEmpty]: Start isEmpty. Operand 14787 states and 21738 transitions. [2024-11-18 14:42:33,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-18 14:42:33,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:42:33,467 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 14:42:33,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 14:42:33,468 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:42:33,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:42:33,468 INFO L85 PathProgramCache]: Analyzing trace with hash -538557447, now seen corresponding path program 1 times [2024-11-18 14:42:33,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:42:33,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461500493] [2024-11-18 14:42:33,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:42:33,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:42:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:42:33,688 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-18 14:42:33,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:42:33,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461500493] [2024-11-18 14:42:33,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461500493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:42:33,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:42:33,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:42:33,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829993904] [2024-11-18 14:42:33,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:42:33,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:42:33,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:42:33,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:42:33,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:42:33,692 INFO L87 Difference]: Start difference. First operand 14787 states and 21738 transitions. Second operand has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:34,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:42:34,645 INFO L93 Difference]: Finished difference Result 44417 states and 65625 transitions. [2024-11-18 14:42:34,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:42:34,646 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2024-11-18 14:42:34,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:42:34,731 INFO L225 Difference]: With dead ends: 44417 [2024-11-18 14:42:34,731 INFO L226 Difference]: Without dead ends: 39311 [2024-11-18 14:42:34,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-18 14:42:34,752 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 1187 mSDsluCounter, 1314 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 1591 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:42:34,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1187 Valid, 1591 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:42:34,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39311 states. [2024-11-18 14:42:35,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39311 to 19651. [2024-11-18 14:42:35,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19651 states, 19650 states have (on average 1.4690076335877862) internal successors, (28866), 19650 states have internal predecessors, (28866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:35,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19651 states to 19651 states and 28866 transitions. [2024-11-18 14:42:35,529 INFO L78 Accepts]: Start accepts. Automaton has 19651 states and 28866 transitions. Word has length 111 [2024-11-18 14:42:35,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:42:35,529 INFO L471 AbstractCegarLoop]: Abstraction has 19651 states and 28866 transitions. [2024-11-18 14:42:35,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:35,530 INFO L276 IsEmpty]: Start isEmpty. Operand 19651 states and 28866 transitions. [2024-11-18 14:42:35,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-18 14:42:35,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:42:35,533 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 14:42:35,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 14:42:35,534 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:42:35,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:42:35,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1141702075, now seen corresponding path program 1 times [2024-11-18 14:42:35,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:42:35,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486615098] [2024-11-18 14:42:35,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:42:35,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:42:35,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:42:35,753 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-18 14:42:35,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:42:35,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486615098] [2024-11-18 14:42:35,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486615098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:42:35,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:42:35,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:42:35,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012660197] [2024-11-18 14:42:35,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:42:35,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:42:35,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:42:35,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:42:35,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:42:35,755 INFO L87 Difference]: Start difference. First operand 19651 states and 28866 transitions. Second operand has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:36,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:42:36,610 INFO L93 Difference]: Finished difference Result 49281 states and 72753 transitions. [2024-11-18 14:42:36,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:42:36,611 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2024-11-18 14:42:36,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:42:36,702 INFO L225 Difference]: With dead ends: 49281 [2024-11-18 14:42:36,702 INFO L226 Difference]: Without dead ends: 44175 [2024-11-18 14:42:36,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-18 14:42:36,724 INFO L432 NwaCegarLoop]: 274 mSDtfsCounter, 1270 mSDsluCounter, 1217 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1270 SdHoareTripleChecker+Valid, 1491 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:42:36,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1270 Valid, 1491 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:42:36,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44175 states. [2024-11-18 14:42:37,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44175 to 24515. [2024-11-18 14:42:37,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24515 states, 24514 states have (on average 1.4683038263849228) internal successors, (35994), 24514 states have internal predecessors, (35994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:37,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24515 states to 24515 states and 35994 transitions. [2024-11-18 14:42:37,486 INFO L78 Accepts]: Start accepts. Automaton has 24515 states and 35994 transitions. Word has length 111 [2024-11-18 14:42:37,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:42:37,486 INFO L471 AbstractCegarLoop]: Abstraction has 24515 states and 35994 transitions. [2024-11-18 14:42:37,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:37,487 INFO L276 IsEmpty]: Start isEmpty. Operand 24515 states and 35994 transitions. [2024-11-18 14:42:37,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-18 14:42:37,490 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:42:37,490 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 14:42:37,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 14:42:37,491 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:42:37,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:42:37,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1116399741, now seen corresponding path program 1 times [2024-11-18 14:42:37,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:42:37,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042371129] [2024-11-18 14:42:37,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:42:37,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:42:37,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:42:37,696 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 14:42:37,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:42:37,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042371129] [2024-11-18 14:42:37,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042371129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:42:37,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:42:37,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:42:37,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628010369] [2024-11-18 14:42:37,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:42:37,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:42:37,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:42:37,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:42:37,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:42:37,699 INFO L87 Difference]: Start difference. First operand 24515 states and 35994 transitions. Second operand has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:38,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:42:38,835 INFO L93 Difference]: Finished difference Result 54145 states and 79881 transitions. [2024-11-18 14:42:38,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:42:38,835 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2024-11-18 14:42:38,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:42:38,934 INFO L225 Difference]: With dead ends: 54145 [2024-11-18 14:42:38,935 INFO L226 Difference]: Without dead ends: 49039 [2024-11-18 14:42:38,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-18 14:42:38,960 INFO L432 NwaCegarLoop]: 271 mSDtfsCounter, 1362 mSDsluCounter, 1258 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1362 SdHoareTripleChecker+Valid, 1529 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:42:38,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1362 Valid, 1529 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:42:38,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49039 states. [2024-11-18 14:42:40,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49039 to 29379. [2024-11-18 14:42:40,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29379 states, 29378 states have (on average 1.4678330723670774) internal successors, (43122), 29378 states have internal predecessors, (43122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:40,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29379 states to 29379 states and 43122 transitions. [2024-11-18 14:42:40,118 INFO L78 Accepts]: Start accepts. Automaton has 29379 states and 43122 transitions. Word has length 111 [2024-11-18 14:42:40,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:42:40,119 INFO L471 AbstractCegarLoop]: Abstraction has 29379 states and 43122 transitions. [2024-11-18 14:42:40,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:40,119 INFO L276 IsEmpty]: Start isEmpty. Operand 29379 states and 43122 transitions. [2024-11-18 14:42:40,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-18 14:42:40,123 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:42:40,123 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 14:42:40,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 14:42:40,124 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:42:40,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:42:40,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1063222209, now seen corresponding path program 1 times [2024-11-18 14:42:40,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:42:40,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822293377] [2024-11-18 14:42:40,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:42:40,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:42:40,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:42:40,323 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-18 14:42:40,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:42:40,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822293377] [2024-11-18 14:42:40,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822293377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:42:40,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:42:40,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:42:40,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141868931] [2024-11-18 14:42:40,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:42:40,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:42:40,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:42:40,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:42:40,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:42:40,326 INFO L87 Difference]: Start difference. First operand 29379 states and 43122 transitions. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:41,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:42:41,233 INFO L93 Difference]: Finished difference Result 59009 states and 87009 transitions. [2024-11-18 14:42:41,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:42:41,234 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2024-11-18 14:42:41,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:42:41,477 INFO L225 Difference]: With dead ends: 59009 [2024-11-18 14:42:41,478 INFO L226 Difference]: Without dead ends: 53903 [2024-11-18 14:42:41,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-18 14:42:41,497 INFO L432 NwaCegarLoop]: 279 mSDtfsCounter, 1176 mSDsluCounter, 1476 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 1755 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:42:41,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1176 Valid, 1755 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:42:41,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53903 states. [2024-11-18 14:42:42,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53903 to 34243. [2024-11-18 14:42:42,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34243 states, 34242 states have (on average 1.4674960574732785) internal successors, (50250), 34242 states have internal predecessors, (50250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:42,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34243 states to 34243 states and 50250 transitions. [2024-11-18 14:42:42,481 INFO L78 Accepts]: Start accepts. Automaton has 34243 states and 50250 transitions. Word has length 111 [2024-11-18 14:42:42,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:42:42,482 INFO L471 AbstractCegarLoop]: Abstraction has 34243 states and 50250 transitions. [2024-11-18 14:42:42,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:42,483 INFO L276 IsEmpty]: Start isEmpty. Operand 34243 states and 50250 transitions. [2024-11-18 14:42:42,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-18 14:42:42,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:42:42,488 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:42:42,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 14:42:42,488 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:42:42,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:42:42,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1254118294, now seen corresponding path program 1 times [2024-11-18 14:42:42,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:42:42,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144095713] [2024-11-18 14:42:42,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:42:42,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:42:42,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:42:42,805 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-18 14:42:42,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:42:42,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144095713] [2024-11-18 14:42:42,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144095713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:42:42,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:42:42,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:42:42,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355251987] [2024-11-18 14:42:42,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:42:42,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:42:42,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:42:42,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:42:42,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:42:42,808 INFO L87 Difference]: Start difference. First operand 34243 states and 50250 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:44,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:42:44,041 INFO L93 Difference]: Finished difference Result 61793 states and 91009 transitions. [2024-11-18 14:42:44,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:42:44,041 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2024-11-18 14:42:44,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:42:44,109 INFO L225 Difference]: With dead ends: 61793 [2024-11-18 14:42:44,109 INFO L226 Difference]: Without dead ends: 58047 [2024-11-18 14:42:44,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-18 14:42:44,122 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 1143 mSDsluCounter, 1741 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 2018 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:42:44,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1143 Valid, 2018 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:42:44,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58047 states. [2024-11-18 14:42:45,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58047 to 38387. [2024-11-18 14:42:45,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38387 states, 38386 states have (on average 1.4666284582920857) internal successors, (56298), 38386 states have internal predecessors, (56298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:45,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38387 states to 38387 states and 56298 transitions. [2024-11-18 14:42:45,078 INFO L78 Accepts]: Start accepts. Automaton has 38387 states and 56298 transitions. Word has length 111 [2024-11-18 14:42:45,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:42:45,078 INFO L471 AbstractCegarLoop]: Abstraction has 38387 states and 56298 transitions. [2024-11-18 14:42:45,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:45,078 INFO L276 IsEmpty]: Start isEmpty. Operand 38387 states and 56298 transitions. [2024-11-18 14:42:45,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-18 14:42:45,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:42:45,184 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 14:42:45,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 14:42:45,184 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:42:45,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:42:45,184 INFO L85 PathProgramCache]: Analyzing trace with hash -362328604, now seen corresponding path program 1 times [2024-11-18 14:42:45,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:42:45,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093435165] [2024-11-18 14:42:45,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:42:45,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:42:45,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:42:45,303 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:42:45,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:42:45,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093435165] [2024-11-18 14:42:45,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093435165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:42:45,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:42:45,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:42:45,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354803021] [2024-11-18 14:42:45,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:42:45,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:42:45,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:42:45,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:42:45,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:42:45,305 INFO L87 Difference]: Start difference. First operand 38387 states and 56298 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:45,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:42:45,828 INFO L93 Difference]: Finished difference Result 53212 states and 77867 transitions. [2024-11-18 14:42:45,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:42:45,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2024-11-18 14:42:45,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:42:45,855 INFO L225 Difference]: With dead ends: 53212 [2024-11-18 14:42:45,856 INFO L226 Difference]: Without dead ends: 14874 [2024-11-18 14:42:45,881 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 [2024-11-18 14:42:45,882 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 60 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:42:45,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 329 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:42:45,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14874 states. [2024-11-18 14:42:46,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14874 to 14488. [2024-11-18 14:42:46,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14488 states, 14487 states have (on average 1.451784358390281) internal successors, (21032), 14487 states have internal predecessors, (21032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:46,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14488 states to 14488 states and 21032 transitions. [2024-11-18 14:42:46,378 INFO L78 Accepts]: Start accepts. Automaton has 14488 states and 21032 transitions. Word has length 114 [2024-11-18 14:42:46,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:42:46,379 INFO L471 AbstractCegarLoop]: Abstraction has 14488 states and 21032 transitions. [2024-11-18 14:42:46,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:42:46,379 INFO L276 IsEmpty]: Start isEmpty. Operand 14488 states and 21032 transitions. [2024-11-18 14:42:46,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-18 14:42:46,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:42:46,384 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 14:42:46,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 14:42:46,384 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:42:46,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:42:46,385 INFO L85 PathProgramCache]: Analyzing trace with hash 2093046883, now seen corresponding path program 1 times [2024-11-18 14:42:46,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:42:46,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054650454] [2024-11-18 14:42:46,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:42:46,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:42:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:42:46,861 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:42:46,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:42:46,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054650454] [2024-11-18 14:42:46,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054650454] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:42:46,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618263350] [2024-11-18 14:42:46,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:42:46,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:42:46,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:42:46,864 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:42:46,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 14:42:47,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:42:47,036 INFO L255 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-18 14:42:47,040 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:42:49,030 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:42:49,031 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:42:51,242 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:42:51,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618263350] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:42:51,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:42:51,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 16, 14] total 37 [2024-11-18 14:42:51,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593305099] [2024-11-18 14:42:51,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:42:51,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-18 14:42:51,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:42:51,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-18 14:42:51,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1152, Unknown=0, NotChecked=0, Total=1332 [2024-11-18 14:42:51,246 INFO L87 Difference]: Start difference. First operand 14488 states and 21032 transitions. Second operand has 37 states, 37 states have (on average 8.54054054054054) internal successors, (316), 37 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:43:39,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:43:39,787 INFO L93 Difference]: Finished difference Result 425835 states and 626000 transitions. [2024-11-18 14:43:39,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 617 states. [2024-11-18 14:43:39,788 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 8.54054054054054) internal successors, (316), 37 states have internal predecessors, (316), 0 states have call successors, (0), 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 114 [2024-11-18 14:43:39,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted.