./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.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 e1221f43edcd55fb28cc2c33b3cd78828237d81c097e561fccaa486cdd56e141 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 20:22:20,513 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 20:22:20,604 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 20:22:20,610 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 20:22:20,611 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 20:22:20,641 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 20:22:20,642 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 20:22:20,642 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 20:22:20,643 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 20:22:20,644 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 20:22:20,644 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 20:22:20,645 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 20:22:20,645 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 20:22:20,647 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 20:22:20,648 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 20:22:20,648 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 20:22:20,648 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 20:22:20,649 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 20:22:20,649 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 20:22:20,649 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 20:22:20,650 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 20:22:20,653 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 20:22:20,653 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 20:22:20,654 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 20:22:20,654 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 20:22:20,654 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 20:22:20,655 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 20:22:20,655 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 20:22:20,655 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 20:22:20,656 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 20:22:20,656 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 20:22:20,656 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 20:22:20,656 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 20:22:20,657 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 20:22:20,657 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 20:22:20,657 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 20:22:20,657 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 20:22:20,658 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 20:22:20,658 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 20:22:20,658 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 20:22:20,658 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 20:22:20,660 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 20:22:20,660 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1221f43edcd55fb28cc2c33b3cd78828237d81c097e561fccaa486cdd56e141 [2024-10-12 20:22:20,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 20:22:20,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 20:22:20,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 20:22:20,953 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 20:22:20,954 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 20:22:20,955 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-12 20:22:22,385 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 20:22:22,617 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 20:22:22,617 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-12 20:22:22,637 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53fcdc618/bf7ac123117845de9139c02f826d6f11/FLAG44f03c33d [2024-10-12 20:22:22,660 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53fcdc618/bf7ac123117845de9139c02f826d6f11 [2024-10-12 20:22:22,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 20:22:22,663 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 20:22:22,666 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 20:22:22,667 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 20:22:22,672 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 20:22:22,673 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 08:22:22" (1/1) ... [2024-10-12 20:22:22,673 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bfe9a23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:22:22, skipping insertion in model container [2024-10-12 20:22:22,674 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 08:22:22" (1/1) ... [2024-10-12 20:22:22,745 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 20:22:23,028 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[7107,7120] [2024-10-12 20:22:23,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 20:22:23,116 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 20:22:23,168 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[7107,7120] [2024-10-12 20:22:23,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 20:22:23,219 INFO L204 MainTranslator]: Completed translation [2024-10-12 20:22:23,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:22:23 WrapperNode [2024-10-12 20:22:23,220 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 20:22:23,221 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 20:22:23,222 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 20:22:23,223 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 20:22:23,230 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:22:23" (1/1) ... [2024-10-12 20:22:23,241 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:22:23" (1/1) ... [2024-10-12 20:22:23,287 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 695 [2024-10-12 20:22:23,288 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 20:22:23,288 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 20:22:23,289 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 20:22:23,289 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 20:22:23,305 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:22:23" (1/1) ... [2024-10-12 20:22:23,305 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:22:23" (1/1) ... [2024-10-12 20:22:23,312 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:22:23" (1/1) ... [2024-10-12 20:22:23,347 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-12 20:22:23,347 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:22:23" (1/1) ... [2024-10-12 20:22:23,347 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:22:23" (1/1) ... [2024-10-12 20:22:23,363 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:22:23" (1/1) ... [2024-10-12 20:22:23,367 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:22:23" (1/1) ... [2024-10-12 20:22:23,375 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:22:23" (1/1) ... [2024-10-12 20:22:23,382 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:22:23" (1/1) ... [2024-10-12 20:22:23,386 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 20:22:23,387 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 20:22:23,387 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 20:22:23,387 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 20:22:23,388 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:22:23" (1/1) ... [2024-10-12 20:22:23,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 20:22:23,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 20:22:23,420 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 20:22:23,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 20:22:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 20:22:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 20:22:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 20:22:23,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 20:22:23,589 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 20:22:23,591 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 20:22:24,237 INFO L? ?]: Removed 82 outVars from TransFormulas that were not future-live. [2024-10-12 20:22:24,237 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 20:22:24,293 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 20:22:24,294 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-12 20:22:24,294 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:22:24 BoogieIcfgContainer [2024-10-12 20:22:24,294 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 20:22:24,298 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 20:22:24,298 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 20:22:24,301 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 20:22:24,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 08:22:22" (1/3) ... [2024-10-12 20:22:24,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@761a81f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:22:24, skipping insertion in model container [2024-10-12 20:22:24,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:22:23" (2/3) ... [2024-10-12 20:22:24,303 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@761a81f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:22:24, skipping insertion in model container [2024-10-12 20:22:24,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:22:24" (3/3) ... [2024-10-12 20:22:24,304 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-12 20:22:24,320 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 20:22:24,321 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 20:22:24,409 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 20:22:24,416 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;@6d53ed05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 20:22:24,416 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 20:22:24,422 INFO L276 IsEmpty]: Start isEmpty. Operand has 168 states, 166 states have (on average 1.7289156626506024) internal successors, (287), 167 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:24,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-12 20:22:24,432 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:24,433 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] [2024-10-12 20:22:24,434 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:24,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:24,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1574066593, now seen corresponding path program 1 times [2024-10-12 20:22:24,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:24,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110840200] [2024-10-12 20:22:24,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:24,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:24,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:25,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:25,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:25,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110840200] [2024-10-12 20:22:25,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110840200] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:25,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:25,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:22:25,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478913248] [2024-10-12 20:22:25,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:25,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 20:22:25,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:25,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 20:22:25,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-12 20:22:25,064 INFO L87 Difference]: Start difference. First operand has 168 states, 166 states have (on average 1.7289156626506024) internal successors, (287), 167 states have internal predecessors, (287), 0 states have call successors, (0), 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 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:25,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:25,328 INFO L93 Difference]: Finished difference Result 598 states and 972 transitions. [2024-10-12 20:22:25,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 20:22:25,332 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-10-12 20:22:25,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:25,350 INFO L225 Difference]: With dead ends: 598 [2024-10-12 20:22:25,350 INFO L226 Difference]: Without dead ends: 510 [2024-10-12 20:22:25,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-12 20:22:25,359 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 1744 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1744 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:25,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1744 Valid, 926 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:22:25,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2024-10-12 20:22:25,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 259. [2024-10-12 20:22:25,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 258 states have (on average 1.5116279069767442) internal successors, (390), 258 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:25,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 390 transitions. [2024-10-12 20:22:25,424 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 390 transitions. Word has length 62 [2024-10-12 20:22:25,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:25,428 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 390 transitions. [2024-10-12 20:22:25,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:25,428 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 390 transitions. [2024-10-12 20:22:25,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-12 20:22:25,430 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:25,430 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:22:25,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 20:22:25,430 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:25,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:25,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1813766352, now seen corresponding path program 1 times [2024-10-12 20:22:25,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:25,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889176183] [2024-10-12 20:22:25,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:25,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:25,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:25,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:25,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889176183] [2024-10-12 20:22:25,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889176183] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:25,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:25,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:22:25,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459420186] [2024-10-12 20:22:25,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:25,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 20:22:25,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:25,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 20:22:25,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-12 20:22:25,797 INFO L87 Difference]: Start difference. First operand 259 states and 390 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:25,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:25,987 INFO L93 Difference]: Finished difference Result 967 states and 1494 transitions. [2024-10-12 20:22:25,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 20:22:25,988 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-10-12 20:22:25,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:25,994 INFO L225 Difference]: With dead ends: 967 [2024-10-12 20:22:25,994 INFO L226 Difference]: Without dead ends: 765 [2024-10-12 20:22:25,996 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-12 20:22:25,998 INFO L432 NwaCegarLoop]: 365 mSDtfsCounter, 874 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 874 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:25,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [874 Valid, 961 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:22:26,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2024-10-12 20:22:26,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 759. [2024-10-12 20:22:26,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 759 states, 758 states have (on average 1.5343007915567282) internal successors, (1163), 758 states have internal predecessors, (1163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:26,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 1163 transitions. [2024-10-12 20:22:26,051 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 1163 transitions. Word has length 63 [2024-10-12 20:22:26,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:26,052 INFO L471 AbstractCegarLoop]: Abstraction has 759 states and 1163 transitions. [2024-10-12 20:22:26,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:26,052 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 1163 transitions. [2024-10-12 20:22:26,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-12 20:22:26,060 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:26,060 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] [2024-10-12 20:22:26,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 20:22:26,061 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:26,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:26,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1900745855, now seen corresponding path program 1 times [2024-10-12 20:22:26,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:26,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865552041] [2024-10-12 20:22:26,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:26,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:26,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:26,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:26,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:26,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865552041] [2024-10-12 20:22:26,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865552041] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:26,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:26,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:22:26,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484383934] [2024-10-12 20:22:26,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:26,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:22:26,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:26,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:22:26,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:22:26,245 INFO L87 Difference]: Start difference. First operand 759 states and 1163 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:26,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:26,472 INFO L93 Difference]: Finished difference Result 2031 states and 3153 transitions. [2024-10-12 20:22:26,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:22:26,473 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-10-12 20:22:26,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:26,479 INFO L225 Difference]: With dead ends: 2031 [2024-10-12 20:22:26,479 INFO L226 Difference]: Without dead ends: 1317 [2024-10-12 20:22:26,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:22:26,485 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 944 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 944 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:26,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [944 Valid, 233 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:22:26,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2024-10-12 20:22:26,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 1315. [2024-10-12 20:22:26,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1315 states, 1314 states have (on average 1.54337899543379) internal successors, (2028), 1314 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:26,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1315 states to 1315 states and 2028 transitions. [2024-10-12 20:22:26,528 INFO L78 Accepts]: Start accepts. Automaton has 1315 states and 2028 transitions. Word has length 64 [2024-10-12 20:22:26,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:26,530 INFO L471 AbstractCegarLoop]: Abstraction has 1315 states and 2028 transitions. [2024-10-12 20:22:26,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:26,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states and 2028 transitions. [2024-10-12 20:22:26,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-12 20:22:26,532 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:26,532 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] [2024-10-12 20:22:26,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 20:22:26,532 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:26,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:26,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1065542559, now seen corresponding path program 1 times [2024-10-12 20:22:26,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:26,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701173334] [2024-10-12 20:22:26,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:26,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:26,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:26,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:26,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:26,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701173334] [2024-10-12 20:22:26,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701173334] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:26,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:26,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:22:26,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846469060] [2024-10-12 20:22:26,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:26,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:22:26,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:26,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:22:26,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:22:26,739 INFO L87 Difference]: Start difference. First operand 1315 states and 2028 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:26,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:26,976 INFO L93 Difference]: Finished difference Result 3527 states and 5494 transitions. [2024-10-12 20:22:26,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:22:26,977 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-10-12 20:22:26,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:26,986 INFO L225 Difference]: With dead ends: 3527 [2024-10-12 20:22:26,986 INFO L226 Difference]: Without dead ends: 2307 [2024-10-12 20:22:26,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:22:26,990 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 870 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:26,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 239 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:22:26,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2307 states. [2024-10-12 20:22:27,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2307 to 2305. [2024-10-12 20:22:27,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2305 states, 2304 states have (on average 1.5477430555555556) internal successors, (3566), 2304 states have internal predecessors, (3566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:27,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 3566 transitions. [2024-10-12 20:22:27,042 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 3566 transitions. Word has length 64 [2024-10-12 20:22:27,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:27,043 INFO L471 AbstractCegarLoop]: Abstraction has 2305 states and 3566 transitions. [2024-10-12 20:22:27,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:27,043 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 3566 transitions. [2024-10-12 20:22:27,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-12 20:22:27,045 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:27,045 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] [2024-10-12 20:22:27,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 20:22:27,046 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:27,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:27,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1926804080, now seen corresponding path program 1 times [2024-10-12 20:22:27,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:27,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643646545] [2024-10-12 20:22:27,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:27,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:27,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:27,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:27,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:27,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643646545] [2024-10-12 20:22:27,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643646545] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:27,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:27,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:22:27,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801437355] [2024-10-12 20:22:27,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:27,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:22:27,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:27,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:22:27,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:22:27,208 INFO L87 Difference]: Start difference. First operand 2305 states and 3566 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:27,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:27,422 INFO L93 Difference]: Finished difference Result 6568 states and 10217 transitions. [2024-10-12 20:22:27,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:22:27,423 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-10-12 20:22:27,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:27,439 INFO L225 Difference]: With dead ends: 6568 [2024-10-12 20:22:27,439 INFO L226 Difference]: Without dead ends: 4331 [2024-10-12 20:22:27,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:22:27,462 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 900 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:27,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [900 Valid, 235 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:22:27,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4331 states. [2024-10-12 20:22:27,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4331 to 4329. [2024-10-12 20:22:27,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4329 states, 4328 states have (on average 1.5457486136783734) internal successors, (6690), 4328 states have internal predecessors, (6690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:27,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4329 states to 4329 states and 6690 transitions. [2024-10-12 20:22:27,544 INFO L78 Accepts]: Start accepts. Automaton has 4329 states and 6690 transitions. Word has length 64 [2024-10-12 20:22:27,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:27,544 INFO L471 AbstractCegarLoop]: Abstraction has 4329 states and 6690 transitions. [2024-10-12 20:22:27,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:27,545 INFO L276 IsEmpty]: Start isEmpty. Operand 4329 states and 6690 transitions. [2024-10-12 20:22:27,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-12 20:22:27,547 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:27,547 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] [2024-10-12 20:22:27,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 20:22:27,547 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:27,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:27,549 INFO L85 PathProgramCache]: Analyzing trace with hash -843769412, now seen corresponding path program 1 times [2024-10-12 20:22:27,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:27,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24472191] [2024-10-12 20:22:27,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:27,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:27,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:27,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:27,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:27,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24472191] [2024-10-12 20:22:27,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24472191] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:27,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:27,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 20:22:27,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326874457] [2024-10-12 20:22:27,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:27,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:22:27,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:27,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:22:27,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:22:27,868 INFO L87 Difference]: Start difference. First operand 4329 states and 6690 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:27,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:27,927 INFO L93 Difference]: Finished difference Result 4459 states and 6883 transitions. [2024-10-12 20:22:27,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:22:27,928 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-10-12 20:22:27,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:27,943 INFO L225 Difference]: With dead ends: 4459 [2024-10-12 20:22:27,944 INFO L226 Difference]: Without dead ends: 4457 [2024-10-12 20:22:27,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:22:27,947 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 0 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:27,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 917 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:22:27,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4457 states. [2024-10-12 20:22:28,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4457 to 4457. [2024-10-12 20:22:28,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4457 states, 4456 states have (on average 1.5300718132854578) internal successors, (6818), 4456 states have internal predecessors, (6818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:28,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4457 states to 4457 states and 6818 transitions. [2024-10-12 20:22:28,032 INFO L78 Accepts]: Start accepts. Automaton has 4457 states and 6818 transitions. Word has length 65 [2024-10-12 20:22:28,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:28,033 INFO L471 AbstractCegarLoop]: Abstraction has 4457 states and 6818 transitions. [2024-10-12 20:22:28,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:28,033 INFO L276 IsEmpty]: Start isEmpty. Operand 4457 states and 6818 transitions. [2024-10-12 20:22:28,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-12 20:22:28,035 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:28,035 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] [2024-10-12 20:22:28,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 20:22:28,035 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:28,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:28,036 INFO L85 PathProgramCache]: Analyzing trace with hash -125753814, now seen corresponding path program 1 times [2024-10-12 20:22:28,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:28,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979260394] [2024-10-12 20:22:28,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:28,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:28,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:28,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:28,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979260394] [2024-10-12 20:22:28,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979260394] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:28,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:28,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 20:22:28,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893797308] [2024-10-12 20:22:28,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:28,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 20:22:28,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:28,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 20:22:28,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 20:22:28,413 INFO L87 Difference]: Start difference. First operand 4457 states and 6818 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:29,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:29,115 INFO L93 Difference]: Finished difference Result 9126 states and 13861 transitions. [2024-10-12 20:22:29,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 20:22:29,116 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-10-12 20:22:29,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:29,138 INFO L225 Difference]: With dead ends: 9126 [2024-10-12 20:22:29,138 INFO L226 Difference]: Without dead ends: 6412 [2024-10-12 20:22:29,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-10-12 20:22:29,146 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 1122 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:29,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1122 Valid, 737 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-12 20:22:29,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6412 states. [2024-10-12 20:22:29,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6412 to 4552. [2024-10-12 20:22:29,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4552 states, 4551 states have (on average 1.5260382333553064) internal successors, (6945), 4551 states have internal predecessors, (6945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:29,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4552 states to 4552 states and 6945 transitions. [2024-10-12 20:22:29,266 INFO L78 Accepts]: Start accepts. Automaton has 4552 states and 6945 transitions. Word has length 66 [2024-10-12 20:22:29,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:29,266 INFO L471 AbstractCegarLoop]: Abstraction has 4552 states and 6945 transitions. [2024-10-12 20:22:29,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:29,267 INFO L276 IsEmpty]: Start isEmpty. Operand 4552 states and 6945 transitions. [2024-10-12 20:22:29,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-12 20:22:29,268 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:29,268 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] [2024-10-12 20:22:29,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 20:22:29,269 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:29,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:29,269 INFO L85 PathProgramCache]: Analyzing trace with hash 118212074, now seen corresponding path program 1 times [2024-10-12 20:22:29,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:29,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646696134] [2024-10-12 20:22:29,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:29,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:29,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:29,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:29,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646696134] [2024-10-12 20:22:29,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646696134] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:29,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:29,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 20:22:29,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520761283] [2024-10-12 20:22:29,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:29,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 20:22:29,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:29,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 20:22:29,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-12 20:22:29,570 INFO L87 Difference]: Start difference. First operand 4552 states and 6945 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:30,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:30,064 INFO L93 Difference]: Finished difference Result 5893 states and 8917 transitions. [2024-10-12 20:22:30,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-12 20:22:30,065 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-10-12 20:22:30,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:30,088 INFO L225 Difference]: With dead ends: 5893 [2024-10-12 20:22:30,088 INFO L226 Difference]: Without dead ends: 5234 [2024-10-12 20:22:30,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-10-12 20:22:30,092 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 579 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:30,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 726 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 20:22:30,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5234 states. [2024-10-12 20:22:30,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5234 to 4552. [2024-10-12 20:22:30,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4552 states, 4551 states have (on average 1.5255987695012085) internal successors, (6943), 4551 states have internal predecessors, (6943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:30,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4552 states to 4552 states and 6943 transitions. [2024-10-12 20:22:30,179 INFO L78 Accepts]: Start accepts. Automaton has 4552 states and 6943 transitions. Word has length 66 [2024-10-12 20:22:30,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:30,180 INFO L471 AbstractCegarLoop]: Abstraction has 4552 states and 6943 transitions. [2024-10-12 20:22:30,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:30,180 INFO L276 IsEmpty]: Start isEmpty. Operand 4552 states and 6943 transitions. [2024-10-12 20:22:30,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-12 20:22:30,184 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:30,184 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] [2024-10-12 20:22:30,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 20:22:30,184 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:30,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:30,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1351209482, now seen corresponding path program 1 times [2024-10-12 20:22:30,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:30,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650349571] [2024-10-12 20:22:30,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:30,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:30,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:30,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:30,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:30,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650349571] [2024-10-12 20:22:30,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650349571] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:30,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:30,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 20:22:30,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829917933] [2024-10-12 20:22:30,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:30,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 20:22:30,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:30,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 20:22:30,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 20:22:30,568 INFO L87 Difference]: Start difference. First operand 4552 states and 6943 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:31,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:31,233 INFO L93 Difference]: Finished difference Result 8625 states and 13067 transitions. [2024-10-12 20:22:31,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-12 20:22:31,236 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-10-12 20:22:31,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:31,259 INFO L225 Difference]: With dead ends: 8625 [2024-10-12 20:22:31,259 INFO L226 Difference]: Without dead ends: 6955 [2024-10-12 20:22:31,268 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-12 20:22:31,271 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 725 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:31,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [725 Valid, 954 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-12 20:22:31,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6955 states. [2024-10-12 20:22:31,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6955 to 4693. [2024-10-12 20:22:31,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4693 states, 4692 states have (on average 1.5202472293265132) internal successors, (7133), 4692 states have internal predecessors, (7133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:31,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4693 states to 4693 states and 7133 transitions. [2024-10-12 20:22:31,373 INFO L78 Accepts]: Start accepts. Automaton has 4693 states and 7133 transitions. Word has length 66 [2024-10-12 20:22:31,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:31,373 INFO L471 AbstractCegarLoop]: Abstraction has 4693 states and 7133 transitions. [2024-10-12 20:22:31,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:31,374 INFO L276 IsEmpty]: Start isEmpty. Operand 4693 states and 7133 transitions. [2024-10-12 20:22:31,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-12 20:22:31,376 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:31,376 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] [2024-10-12 20:22:31,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 20:22:31,376 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:31,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:31,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1022513016, now seen corresponding path program 1 times [2024-10-12 20:22:31,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:31,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609727121] [2024-10-12 20:22:31,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:31,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:31,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:31,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:31,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609727121] [2024-10-12 20:22:31,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609727121] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:31,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:31,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:22:31,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586137515] [2024-10-12 20:22:31,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:31,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:22:31,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:31,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:22:31,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:22:31,476 INFO L87 Difference]: Start difference. First operand 4693 states and 7133 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:31,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:31,682 INFO L93 Difference]: Finished difference Result 12741 states and 19424 transitions. [2024-10-12 20:22:31,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:22:31,686 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-10-12 20:22:31,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:31,704 INFO L225 Difference]: With dead ends: 12741 [2024-10-12 20:22:31,705 INFO L226 Difference]: Without dead ends: 8095 [2024-10-12 20:22:31,712 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:22:31,713 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 961 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 961 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:31,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [961 Valid, 238 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:22:31,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8095 states. [2024-10-12 20:22:31,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8095 to 8093. [2024-10-12 20:22:31,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8093 states, 8092 states have (on average 1.5173010380622838) internal successors, (12278), 8092 states have internal predecessors, (12278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:31,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8093 states to 8093 states and 12278 transitions. [2024-10-12 20:22:31,832 INFO L78 Accepts]: Start accepts. Automaton has 8093 states and 12278 transitions. Word has length 66 [2024-10-12 20:22:31,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:31,833 INFO L471 AbstractCegarLoop]: Abstraction has 8093 states and 12278 transitions. [2024-10-12 20:22:31,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:31,833 INFO L276 IsEmpty]: Start isEmpty. Operand 8093 states and 12278 transitions. [2024-10-12 20:22:31,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-12 20:22:31,836 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:31,836 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] [2024-10-12 20:22:31,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-12 20:22:31,837 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:31,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:31,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1273718427, now seen corresponding path program 1 times [2024-10-12 20:22:31,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:31,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909333497] [2024-10-12 20:22:31,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:31,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:31,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:32,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:32,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:32,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909333497] [2024-10-12 20:22:32,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909333497] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:32,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:32,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:22:32,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913705139] [2024-10-12 20:22:32,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:32,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 20:22:32,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:32,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 20:22:32,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 20:22:32,033 INFO L87 Difference]: Start difference. First operand 8093 states and 12278 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:32,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:32,114 INFO L93 Difference]: Finished difference Result 21233 states and 32296 transitions. [2024-10-12 20:22:32,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 20:22:32,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-10-12 20:22:32,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:32,145 INFO L225 Difference]: With dead ends: 21233 [2024-10-12 20:22:32,145 INFO L226 Difference]: Without dead ends: 14063 [2024-10-12 20:22:32,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 20:22:32,161 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 158 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:32,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 569 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:22:32,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14063 states. [2024-10-12 20:22:32,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14063 to 13957. [2024-10-12 20:22:32,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13957 states, 13956 states have (on average 1.503439380911436) internal successors, (20982), 13956 states have internal predecessors, (20982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:32,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13957 states to 13957 states and 20982 transitions. [2024-10-12 20:22:32,367 INFO L78 Accepts]: Start accepts. Automaton has 13957 states and 20982 transitions. Word has length 67 [2024-10-12 20:22:32,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:32,368 INFO L471 AbstractCegarLoop]: Abstraction has 13957 states and 20982 transitions. [2024-10-12 20:22:32,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:32,368 INFO L276 IsEmpty]: Start isEmpty. Operand 13957 states and 20982 transitions. [2024-10-12 20:22:32,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-12 20:22:32,371 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:32,371 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] [2024-10-12 20:22:32,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 20:22:32,371 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:32,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:32,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1507383957, now seen corresponding path program 1 times [2024-10-12 20:22:32,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:32,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195212995] [2024-10-12 20:22:32,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:32,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:32,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:32,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:32,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:32,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195212995] [2024-10-12 20:22:32,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195212995] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:32,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:32,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:22:32,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412858210] [2024-10-12 20:22:32,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:32,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:22:32,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:32,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:22:32,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:22:32,471 INFO L87 Difference]: Start difference. First operand 13957 states and 20982 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:32,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:32,546 INFO L93 Difference]: Finished difference Result 25361 states and 38159 transitions. [2024-10-12 20:22:32,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:22:32,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-10-12 20:22:32,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:32,580 INFO L225 Difference]: With dead ends: 25361 [2024-10-12 20:22:32,580 INFO L226 Difference]: Without dead ends: 17035 [2024-10-12 20:22:32,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:22:32,596 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 148 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:32,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 452 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:22:32,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17035 states. [2024-10-12 20:22:32,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17035 to 16817. [2024-10-12 20:22:32,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16817 states, 16816 states have (on average 1.4811489058039962) internal successors, (24907), 16816 states have internal predecessors, (24907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:32,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16817 states to 16817 states and 24907 transitions. [2024-10-12 20:22:32,849 INFO L78 Accepts]: Start accepts. Automaton has 16817 states and 24907 transitions. Word has length 67 [2024-10-12 20:22:32,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:32,849 INFO L471 AbstractCegarLoop]: Abstraction has 16817 states and 24907 transitions. [2024-10-12 20:22:32,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:32,850 INFO L276 IsEmpty]: Start isEmpty. Operand 16817 states and 24907 transitions. [2024-10-12 20:22:32,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-12 20:22:32,852 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:32,852 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] [2024-10-12 20:22:32,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-12 20:22:32,853 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:32,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:32,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1111780341, now seen corresponding path program 1 times [2024-10-12 20:22:32,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:32,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387942764] [2024-10-12 20:22:32,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:32,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:32,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:32,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:32,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:32,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387942764] [2024-10-12 20:22:32,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387942764] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:32,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:32,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:22:32,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626054054] [2024-10-12 20:22:32,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:32,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:22:32,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:32,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:22:32,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:22:32,946 INFO L87 Difference]: Start difference. First operand 16817 states and 24907 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:33,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:33,043 INFO L93 Difference]: Finished difference Result 37670 states and 55841 transitions. [2024-10-12 20:22:33,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:22:33,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-10-12 20:22:33,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:33,084 INFO L225 Difference]: With dead ends: 37670 [2024-10-12 20:22:33,085 INFO L226 Difference]: Without dead ends: 23114 [2024-10-12 20:22:33,106 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:22:33,107 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 163 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:33,107 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 450 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:22:33,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23114 states. [2024-10-12 20:22:33,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23114 to 16686. [2024-10-12 20:22:33,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16686 states, 16685 states have (on average 1.4625711717111178) internal successors, (24403), 16685 states have internal predecessors, (24403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:33,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16686 states to 16686 states and 24403 transitions. [2024-10-12 20:22:33,491 INFO L78 Accepts]: Start accepts. Automaton has 16686 states and 24403 transitions. Word has length 67 [2024-10-12 20:22:33,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:33,491 INFO L471 AbstractCegarLoop]: Abstraction has 16686 states and 24403 transitions. [2024-10-12 20:22:33,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:33,492 INFO L276 IsEmpty]: Start isEmpty. Operand 16686 states and 24403 transitions. [2024-10-12 20:22:33,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-12 20:22:33,494 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:33,494 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] [2024-10-12 20:22:33,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-12 20:22:33,495 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:33,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:33,495 INFO L85 PathProgramCache]: Analyzing trace with hash -5065132, now seen corresponding path program 1 times [2024-10-12 20:22:33,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:33,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198990093] [2024-10-12 20:22:33,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:33,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:33,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:33,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:33,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:33,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198990093] [2024-10-12 20:22:33,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198990093] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:33,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:33,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:22:33,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375208861] [2024-10-12 20:22:33,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:33,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:22:33,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:33,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:22:33,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:22:33,543 INFO L87 Difference]: Start difference. First operand 16686 states and 24403 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:33,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:33,616 INFO L93 Difference]: Finished difference Result 22882 states and 33320 transitions. [2024-10-12 20:22:33,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:22:33,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-10-12 20:22:33,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:33,643 INFO L225 Difference]: With dead ends: 22882 [2024-10-12 20:22:33,644 INFO L226 Difference]: Without dead ends: 17040 [2024-10-12 20:22:33,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:22:33,658 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 135 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:33,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 434 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:22:33,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17040 states. [2024-10-12 20:22:33,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17040 to 15374. [2024-10-12 20:22:33,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15374 states, 15373 states have (on average 1.4325765953294738) internal successors, (22023), 15373 states have internal predecessors, (22023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:34,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15374 states to 15374 states and 22023 transitions. [2024-10-12 20:22:34,006 INFO L78 Accepts]: Start accepts. Automaton has 15374 states and 22023 transitions. Word has length 67 [2024-10-12 20:22:34,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:34,006 INFO L471 AbstractCegarLoop]: Abstraction has 15374 states and 22023 transitions. [2024-10-12 20:22:34,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:34,007 INFO L276 IsEmpty]: Start isEmpty. Operand 15374 states and 22023 transitions. [2024-10-12 20:22:34,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-12 20:22:34,010 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:34,010 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] [2024-10-12 20:22:34,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-12 20:22:34,010 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:34,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:34,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1345977939, now seen corresponding path program 1 times [2024-10-12 20:22:34,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:34,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360200374] [2024-10-12 20:22:34,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:34,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:34,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:34,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:34,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:34,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360200374] [2024-10-12 20:22:34,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360200374] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:34,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:34,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:22:34,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391376206] [2024-10-12 20:22:34,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:34,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 20:22:34,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:34,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 20:22:34,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 20:22:34,141 INFO L87 Difference]: Start difference. First operand 15374 states and 22023 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:34,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:34,385 INFO L93 Difference]: Finished difference Result 32727 states and 47288 transitions. [2024-10-12 20:22:34,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 20:22:34,387 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-10-12 20:22:34,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:34,420 INFO L225 Difference]: With dead ends: 32727 [2024-10-12 20:22:34,420 INFO L226 Difference]: Without dead ends: 26333 [2024-10-12 20:22:34,430 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-12 20:22:34,431 INFO L432 NwaCegarLoop]: 362 mSDtfsCounter, 1030 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:34,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1030 Valid, 1082 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:22:34,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26333 states. [2024-10-12 20:22:34,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26333 to 21733. [2024-10-12 20:22:34,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21733 states, 21732 states have (on average 1.4335081906865452) internal successors, (31153), 21732 states have internal predecessors, (31153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:34,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21733 states to 21733 states and 31153 transitions. [2024-10-12 20:22:34,847 INFO L78 Accepts]: Start accepts. Automaton has 21733 states and 31153 transitions. Word has length 68 [2024-10-12 20:22:34,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:34,848 INFO L471 AbstractCegarLoop]: Abstraction has 21733 states and 31153 transitions. [2024-10-12 20:22:34,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:34,848 INFO L276 IsEmpty]: Start isEmpty. Operand 21733 states and 31153 transitions. [2024-10-12 20:22:34,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-12 20:22:34,854 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:34,854 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] [2024-10-12 20:22:34,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-12 20:22:34,854 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:34,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:34,855 INFO L85 PathProgramCache]: Analyzing trace with hash -337734033, now seen corresponding path program 1 times [2024-10-12 20:22:34,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:34,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533151783] [2024-10-12 20:22:34,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:34,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:34,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:34,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:34,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:34,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533151783] [2024-10-12 20:22:34,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533151783] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:34,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:34,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:22:34,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472568905] [2024-10-12 20:22:34,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:34,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 20:22:34,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:34,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 20:22:34,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 20:22:34,973 INFO L87 Difference]: Start difference. First operand 21733 states and 31153 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:35,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:35,123 INFO L93 Difference]: Finished difference Result 30899 states and 44494 transitions. [2024-10-12 20:22:35,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 20:22:35,124 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-10-12 20:22:35,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:35,167 INFO L225 Difference]: With dead ends: 30899 [2024-10-12 20:22:35,168 INFO L226 Difference]: Without dead ends: 29481 [2024-10-12 20:22:35,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-12 20:22:35,185 INFO L432 NwaCegarLoop]: 332 mSDtfsCounter, 1051 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 1105 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:35,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1051 Valid, 1105 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:22:35,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29481 states. [2024-10-12 20:22:35,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29481 to 23135. [2024-10-12 20:22:35,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23135 states, 23134 states have (on average 1.4337771245785425) internal successors, (33169), 23134 states have internal predecessors, (33169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:35,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23135 states to 23135 states and 33169 transitions. [2024-10-12 20:22:35,614 INFO L78 Accepts]: Start accepts. Automaton has 23135 states and 33169 transitions. Word has length 68 [2024-10-12 20:22:35,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:35,614 INFO L471 AbstractCegarLoop]: Abstraction has 23135 states and 33169 transitions. [2024-10-12 20:22:35,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:35,615 INFO L276 IsEmpty]: Start isEmpty. Operand 23135 states and 33169 transitions. [2024-10-12 20:22:35,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-12 20:22:35,618 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:35,618 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] [2024-10-12 20:22:35,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-12 20:22:35,618 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:35,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:35,619 INFO L85 PathProgramCache]: Analyzing trace with hash -533764226, now seen corresponding path program 1 times [2024-10-12 20:22:35,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:35,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386175170] [2024-10-12 20:22:35,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:35,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:35,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:35,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:35,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:35,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386175170] [2024-10-12 20:22:35,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386175170] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:35,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:35,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:22:35,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473401092] [2024-10-12 20:22:35,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:35,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 20:22:35,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:35,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 20:22:35,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 20:22:35,873 INFO L87 Difference]: Start difference. First operand 23135 states and 33169 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:36,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:36,062 INFO L93 Difference]: Finished difference Result 33991 states and 48976 transitions. [2024-10-12 20:22:36,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 20:22:36,063 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-10-12 20:22:36,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:36,108 INFO L225 Difference]: With dead ends: 33991 [2024-10-12 20:22:36,109 INFO L226 Difference]: Without dead ends: 30845 [2024-10-12 20:22:36,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-12 20:22:36,129 INFO L432 NwaCegarLoop]: 357 mSDtfsCounter, 964 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 1264 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:36,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [964 Valid, 1264 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:22:36,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30845 states. [2024-10-12 20:22:36,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30845 to 26260. [2024-10-12 20:22:36,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26260 states, 26259 states have (on average 1.434098785178415) internal successors, (37658), 26259 states have internal predecessors, (37658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:36,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26260 states to 26260 states and 37658 transitions. [2024-10-12 20:22:36,574 INFO L78 Accepts]: Start accepts. Automaton has 26260 states and 37658 transitions. Word has length 68 [2024-10-12 20:22:36,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:36,574 INFO L471 AbstractCegarLoop]: Abstraction has 26260 states and 37658 transitions. [2024-10-12 20:22:36,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:36,575 INFO L276 IsEmpty]: Start isEmpty. Operand 26260 states and 37658 transitions. [2024-10-12 20:22:36,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-12 20:22:36,577 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:36,577 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] [2024-10-12 20:22:36,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-12 20:22:36,578 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:36,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:36,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1790888741, now seen corresponding path program 1 times [2024-10-12 20:22:36,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:36,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450781911] [2024-10-12 20:22:36,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:36,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:36,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:36,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:36,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:36,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450781911] [2024-10-12 20:22:36,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450781911] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:36,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:36,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:22:36,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977217728] [2024-10-12 20:22:36,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:36,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 20:22:36,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:36,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 20:22:36,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 20:22:36,679 INFO L87 Difference]: Start difference. First operand 26260 states and 37658 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:36,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:36,871 INFO L93 Difference]: Finished difference Result 44438 states and 64122 transitions. [2024-10-12 20:22:36,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 20:22:36,872 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-10-12 20:22:36,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:36,911 INFO L225 Difference]: With dead ends: 44438 [2024-10-12 20:22:36,911 INFO L226 Difference]: Without dead ends: 37188 [2024-10-12 20:22:36,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-12 20:22:36,932 INFO L432 NwaCegarLoop]: 378 mSDtfsCounter, 1035 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1035 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:36,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1035 Valid, 1263 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:22:36,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37188 states. [2024-10-12 20:22:37,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37188 to 31795. [2024-10-12 20:22:37,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31795 states, 31794 states have (on average 1.4346103038309115) internal successors, (45612), 31794 states have internal predecessors, (45612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:37,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31795 states to 31795 states and 45612 transitions. [2024-10-12 20:22:37,620 INFO L78 Accepts]: Start accepts. Automaton has 31795 states and 45612 transitions. Word has length 68 [2024-10-12 20:22:37,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:37,620 INFO L471 AbstractCegarLoop]: Abstraction has 31795 states and 45612 transitions. [2024-10-12 20:22:37,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:37,621 INFO L276 IsEmpty]: Start isEmpty. Operand 31795 states and 45612 transitions. [2024-10-12 20:22:37,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-12 20:22:37,625 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:37,625 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] [2024-10-12 20:22:37,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-12 20:22:37,625 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:37,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:37,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1281950280, now seen corresponding path program 1 times [2024-10-12 20:22:37,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:37,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811571681] [2024-10-12 20:22:37,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:37,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:37,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:37,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:37,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811571681] [2024-10-12 20:22:37,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811571681] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:37,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:37,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:22:37,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005427034] [2024-10-12 20:22:37,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:37,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:22:37,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:37,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:22:37,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:22:37,692 INFO L87 Difference]: Start difference. First operand 31795 states and 45612 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:37,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:37,863 INFO L93 Difference]: Finished difference Result 64004 states and 91470 transitions. [2024-10-12 20:22:37,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:22:37,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-10-12 20:22:37,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:37,902 INFO L225 Difference]: With dead ends: 64004 [2024-10-12 20:22:37,902 INFO L226 Difference]: Without dead ends: 34688 [2024-10-12 20:22:37,927 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:22:37,928 INFO L432 NwaCegarLoop]: 314 mSDtfsCounter, 150 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:37,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 520 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:22:37,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34688 states. [2024-10-12 20:22:38,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34688 to 31690. [2024-10-12 20:22:38,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31690 states, 31689 states have (on average 1.3971409637413614) internal successors, (44274), 31689 states have internal predecessors, (44274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:38,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31690 states to 31690 states and 44274 transitions. [2024-10-12 20:22:38,656 INFO L78 Accepts]: Start accepts. Automaton has 31690 states and 44274 transitions. Word has length 71 [2024-10-12 20:22:38,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:38,656 INFO L471 AbstractCegarLoop]: Abstraction has 31690 states and 44274 transitions. [2024-10-12 20:22:38,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:38,656 INFO L276 IsEmpty]: Start isEmpty. Operand 31690 states and 44274 transitions. [2024-10-12 20:22:38,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-12 20:22:38,660 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:38,660 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] [2024-10-12 20:22:38,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-12 20:22:38,660 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:38,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:38,661 INFO L85 PathProgramCache]: Analyzing trace with hash -943759221, now seen corresponding path program 1 times [2024-10-12 20:22:38,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:38,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175061706] [2024-10-12 20:22:38,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:38,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:38,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:38,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:38,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:38,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175061706] [2024-10-12 20:22:38,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175061706] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:38,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:38,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:22:38,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67122535] [2024-10-12 20:22:38,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:38,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:22:38,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:38,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:22:38,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:22:38,778 INFO L87 Difference]: Start difference. First operand 31690 states and 44274 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:39,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:39,310 INFO L93 Difference]: Finished difference Result 75862 states and 105871 transitions. [2024-10-12 20:22:39,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 20:22:39,311 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2024-10-12 20:22:39,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:39,610 INFO L225 Difference]: With dead ends: 75862 [2024-10-12 20:22:39,611 INFO L226 Difference]: Without dead ends: 65632 [2024-10-12 20:22:39,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:22:39,636 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 1694 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1694 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:39,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1694 Valid, 453 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 20:22:39,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65632 states. [2024-10-12 20:22:40,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65632 to 31714. [2024-10-12 20:22:40,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31714 states, 31713 states have (on average 1.3970926749282628) internal successors, (44306), 31713 states have internal predecessors, (44306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:40,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31714 states to 31714 states and 44306 transitions. [2024-10-12 20:22:40,103 INFO L78 Accepts]: Start accepts. Automaton has 31714 states and 44306 transitions. Word has length 73 [2024-10-12 20:22:40,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:40,104 INFO L471 AbstractCegarLoop]: Abstraction has 31714 states and 44306 transitions. [2024-10-12 20:22:40,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:40,104 INFO L276 IsEmpty]: Start isEmpty. Operand 31714 states and 44306 transitions. [2024-10-12 20:22:40,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-12 20:22:40,108 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:40,108 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] [2024-10-12 20:22:40,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-12 20:22:40,108 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:40,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:40,109 INFO L85 PathProgramCache]: Analyzing trace with hash -908443837, now seen corresponding path program 1 times [2024-10-12 20:22:40,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:40,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885912451] [2024-10-12 20:22:40,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:40,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:40,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:40,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:40,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:40,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885912451] [2024-10-12 20:22:40,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885912451] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:40,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:40,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:22:40,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96627693] [2024-10-12 20:22:40,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:40,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:22:40,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:40,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:22:40,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:22:40,226 INFO L87 Difference]: Start difference. First operand 31714 states and 44306 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:40,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:40,927 INFO L93 Difference]: Finished difference Result 94136 states and 130617 transitions. [2024-10-12 20:22:40,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 20:22:40,927 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2024-10-12 20:22:40,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:41,022 INFO L225 Difference]: With dead ends: 94136 [2024-10-12 20:22:41,022 INFO L226 Difference]: Without dead ends: 82500 [2024-10-12 20:22:41,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:22:41,061 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 1464 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:41,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1464 Valid, 455 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-12 20:22:41,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82500 states. [2024-10-12 20:22:41,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82500 to 31878. [2024-10-12 20:22:41,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31878 states, 31877 states have (on average 1.3962418044358) internal successors, (44508), 31877 states have internal predecessors, (44508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:41,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31878 states to 31878 states and 44508 transitions. [2024-10-12 20:22:41,885 INFO L78 Accepts]: Start accepts. Automaton has 31878 states and 44508 transitions. Word has length 73 [2024-10-12 20:22:41,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:41,885 INFO L471 AbstractCegarLoop]: Abstraction has 31878 states and 44508 transitions. [2024-10-12 20:22:41,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:41,885 INFO L276 IsEmpty]: Start isEmpty. Operand 31878 states and 44508 transitions. [2024-10-12 20:22:41,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-12 20:22:41,890 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:41,890 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] [2024-10-12 20:22:41,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-12 20:22:41,891 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:41,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:41,891 INFO L85 PathProgramCache]: Analyzing trace with hash -2065668138, now seen corresponding path program 1 times [2024-10-12 20:22:41,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:41,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170238177] [2024-10-12 20:22:41,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:41,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:41,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:42,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:42,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:42,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170238177] [2024-10-12 20:22:42,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170238177] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:42,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:42,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:22:42,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901680661] [2024-10-12 20:22:42,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:42,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:22:42,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:42,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:22:42,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:22:42,008 INFO L87 Difference]: Start difference. First operand 31878 states and 44508 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:42,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:42,722 INFO L93 Difference]: Finished difference Result 74784 states and 103426 transitions. [2024-10-12 20:22:42,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 20:22:42,722 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2024-10-12 20:22:42,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:42,801 INFO L225 Difference]: With dead ends: 74784 [2024-10-12 20:22:42,801 INFO L226 Difference]: Without dead ends: 68933 [2024-10-12 20:22:42,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:22:42,821 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 1364 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1364 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:42,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1364 Valid, 423 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 20:22:42,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68933 states. [2024-10-12 20:22:43,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68933 to 32139. [2024-10-12 20:22:43,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32139 states, 32138 states have (on average 1.3945796253656109) internal successors, (44819), 32138 states have internal predecessors, (44819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:43,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32139 states to 32139 states and 44819 transitions. [2024-10-12 20:22:43,401 INFO L78 Accepts]: Start accepts. Automaton has 32139 states and 44819 transitions. Word has length 73 [2024-10-12 20:22:43,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:43,401 INFO L471 AbstractCegarLoop]: Abstraction has 32139 states and 44819 transitions. [2024-10-12 20:22:43,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:43,402 INFO L276 IsEmpty]: Start isEmpty. Operand 32139 states and 44819 transitions. [2024-10-12 20:22:43,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-12 20:22:43,407 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:43,407 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:22:43,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-12 20:22:43,407 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:43,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:43,408 INFO L85 PathProgramCache]: Analyzing trace with hash 922254347, now seen corresponding path program 1 times [2024-10-12 20:22:43,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:43,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587924105] [2024-10-12 20:22:43,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:43,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:43,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:43,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:43,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:43,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587924105] [2024-10-12 20:22:43,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587924105] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:43,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:43,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:22:43,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778647795] [2024-10-12 20:22:43,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:43,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:22:43,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:43,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:22:43,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:22:43,516 INFO L87 Difference]: Start difference. First operand 32139 states and 44819 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:43,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:43,949 INFO L93 Difference]: Finished difference Result 81138 states and 112526 transitions. [2024-10-12 20:22:43,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 20:22:43,950 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-10-12 20:22:43,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:44,013 INFO L225 Difference]: With dead ends: 81138 [2024-10-12 20:22:44,013 INFO L226 Difference]: Without dead ends: 60053 [2024-10-12 20:22:44,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:22:44,040 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 1178 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:44,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1178 Valid, 386 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:22:44,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60053 states. [2024-10-12 20:22:44,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60053 to 32189. [2024-10-12 20:22:44,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32189 states, 32188 states have (on average 1.3942773704486144) internal successors, (44879), 32188 states have internal predecessors, (44879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:44,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32189 states to 32189 states and 44879 transitions. [2024-10-12 20:22:44,862 INFO L78 Accepts]: Start accepts. Automaton has 32189 states and 44879 transitions. Word has length 74 [2024-10-12 20:22:44,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:44,862 INFO L471 AbstractCegarLoop]: Abstraction has 32189 states and 44879 transitions. [2024-10-12 20:22:44,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:44,863 INFO L276 IsEmpty]: Start isEmpty. Operand 32189 states and 44879 transitions. [2024-10-12 20:22:44,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-10-12 20:22:44,867 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:44,868 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] [2024-10-12 20:22:44,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-12 20:22:44,868 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:44,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:44,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1018398001, now seen corresponding path program 1 times [2024-10-12 20:22:44,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:44,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867911654] [2024-10-12 20:22:44,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:44,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:44,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:45,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:45,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:45,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867911654] [2024-10-12 20:22:45,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867911654] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:45,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:45,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-12 20:22:45,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538543844] [2024-10-12 20:22:45,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:45,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-12 20:22:45,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:45,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-12 20:22:45,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-10-12 20:22:45,640 INFO L87 Difference]: Start difference. First operand 32189 states and 44879 transitions. Second operand has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 13 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:47,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:47,114 INFO L93 Difference]: Finished difference Result 110821 states and 154533 transitions. [2024-10-12 20:22:47,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-12 20:22:47,115 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 13 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2024-10-12 20:22:47,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:47,236 INFO L225 Difference]: With dead ends: 110821 [2024-10-12 20:22:47,236 INFO L226 Difference]: Without dead ends: 102394 [2024-10-12 20:22:47,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2024-10-12 20:22:47,277 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 2100 mSDsluCounter, 2451 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2100 SdHoareTripleChecker+Valid, 2712 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:47,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2100 Valid, 2712 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-12 20:22:47,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102394 states. [2024-10-12 20:22:48,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102394 to 32166. [2024-10-12 20:22:48,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32166 states, 32165 states have (on average 1.394279496346961) internal successors, (44847), 32165 states have internal predecessors, (44847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:48,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32166 states to 32166 states and 44847 transitions. [2024-10-12 20:22:48,163 INFO L78 Accepts]: Start accepts. Automaton has 32166 states and 44847 transitions. Word has length 75 [2024-10-12 20:22:48,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:48,164 INFO L471 AbstractCegarLoop]: Abstraction has 32166 states and 44847 transitions. [2024-10-12 20:22:48,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 13 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:48,164 INFO L276 IsEmpty]: Start isEmpty. Operand 32166 states and 44847 transitions. [2024-10-12 20:22:48,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-10-12 20:22:48,169 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:48,170 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] [2024-10-12 20:22:48,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-12 20:22:48,170 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:48,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:48,170 INFO L85 PathProgramCache]: Analyzing trace with hash 455174826, now seen corresponding path program 1 times [2024-10-12 20:22:48,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:48,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762934646] [2024-10-12 20:22:48,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:48,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:48,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:48,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:48,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762934646] [2024-10-12 20:22:48,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762934646] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:48,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:48,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 20:22:48,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081659655] [2024-10-12 20:22:48,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:48,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 20:22:48,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:48,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 20:22:48,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 20:22:48,477 INFO L87 Difference]: Start difference. First operand 32166 states and 44847 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:49,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:49,332 INFO L93 Difference]: Finished difference Result 90834 states and 126900 transitions. [2024-10-12 20:22:49,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 20:22:49,332 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2024-10-12 20:22:49,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:49,401 INFO L225 Difference]: With dead ends: 90834 [2024-10-12 20:22:49,401 INFO L226 Difference]: Without dead ends: 59904 [2024-10-12 20:22:49,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-10-12 20:22:49,427 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 985 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:49,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 897 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 20:22:49,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59904 states. [2024-10-12 20:22:49,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59904 to 31961. [2024-10-12 20:22:49,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31961 states, 31960 states have (on average 1.3940863579474343) internal successors, (44555), 31960 states have internal predecessors, (44555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:49,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31961 states to 31961 states and 44555 transitions. [2024-10-12 20:22:49,834 INFO L78 Accepts]: Start accepts. Automaton has 31961 states and 44555 transitions. Word has length 75 [2024-10-12 20:22:49,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:49,834 INFO L471 AbstractCegarLoop]: Abstraction has 31961 states and 44555 transitions. [2024-10-12 20:22:49,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:49,835 INFO L276 IsEmpty]: Start isEmpty. Operand 31961 states and 44555 transitions. [2024-10-12 20:22:49,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-12 20:22:49,838 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:49,838 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] [2024-10-12 20:22:49,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-12 20:22:49,838 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:49,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:49,839 INFO L85 PathProgramCache]: Analyzing trace with hash 685533809, now seen corresponding path program 1 times [2024-10-12 20:22:49,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:49,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826783559] [2024-10-12 20:22:49,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:49,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:50,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:50,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:50,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:50,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826783559] [2024-10-12 20:22:50,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826783559] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:50,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:50,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:22:50,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793379025] [2024-10-12 20:22:50,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:50,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:22:50,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:50,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:22:50,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:22:50,090 INFO L87 Difference]: Start difference. First operand 31961 states and 44555 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:50,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:50,358 INFO L93 Difference]: Finished difference Result 70752 states and 98764 transitions. [2024-10-12 20:22:50,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:22:50,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-10-12 20:22:50,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:50,445 INFO L225 Difference]: With dead ends: 70752 [2024-10-12 20:22:50,445 INFO L226 Difference]: Without dead ends: 50315 [2024-10-12 20:22:50,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:22:50,479 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 183 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:50,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 350 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:22:50,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50315 states. [2024-10-12 20:22:51,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50315 to 50119. [2024-10-12 20:22:51,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50119 states, 50118 states have (on average 1.3976615188155952) internal successors, (70048), 50118 states have internal predecessors, (70048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:51,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50119 states to 50119 states and 70048 transitions. [2024-10-12 20:22:51,581 INFO L78 Accepts]: Start accepts. Automaton has 50119 states and 70048 transitions. Word has length 76 [2024-10-12 20:22:51,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:51,582 INFO L471 AbstractCegarLoop]: Abstraction has 50119 states and 70048 transitions. [2024-10-12 20:22:51,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:51,582 INFO L276 IsEmpty]: Start isEmpty. Operand 50119 states and 70048 transitions. [2024-10-12 20:22:51,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-12 20:22:51,586 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:51,586 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] [2024-10-12 20:22:51,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-12 20:22:51,587 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:51,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:51,587 INFO L85 PathProgramCache]: Analyzing trace with hash 499307479, now seen corresponding path program 1 times [2024-10-12 20:22:51,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:51,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217707040] [2024-10-12 20:22:51,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:51,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:51,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:52,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:52,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:52,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217707040] [2024-10-12 20:22:52,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217707040] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:52,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:52,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-12 20:22:52,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798149886] [2024-10-12 20:22:52,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:52,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-12 20:22:52,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:52,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-12 20:22:52,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-10-12 20:22:52,227 INFO L87 Difference]: Start difference. First operand 50119 states and 70048 transitions. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:52,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:52,979 INFO L93 Difference]: Finished difference Result 114530 states and 160675 transitions. [2024-10-12 20:22:52,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-12 20:22:52,980 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-10-12 20:22:52,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:53,096 INFO L225 Difference]: With dead ends: 114530 [2024-10-12 20:22:53,096 INFO L226 Difference]: Without dead ends: 93444 [2024-10-12 20:22:53,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=143, Invalid=457, Unknown=0, NotChecked=0, Total=600 [2024-10-12 20:22:53,136 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 1123 mSDsluCounter, 1461 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 1709 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:53,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1123 Valid, 1709 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:22:53,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93444 states. [2024-10-12 20:22:54,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93444 to 49940. [2024-10-12 20:22:54,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49940 states, 49939 states have (on average 1.398185786659725) internal successors, (69824), 49939 states have internal predecessors, (69824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:54,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49940 states to 49940 states and 69824 transitions. [2024-10-12 20:22:54,143 INFO L78 Accepts]: Start accepts. Automaton has 49940 states and 69824 transitions. Word has length 76 [2024-10-12 20:22:54,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:54,143 INFO L471 AbstractCegarLoop]: Abstraction has 49940 states and 69824 transitions. [2024-10-12 20:22:54,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:54,144 INFO L276 IsEmpty]: Start isEmpty. Operand 49940 states and 69824 transitions. [2024-10-12 20:22:54,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-12 20:22:54,147 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:54,147 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] [2024-10-12 20:22:54,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-12 20:22:54,147 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:54,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:54,148 INFO L85 PathProgramCache]: Analyzing trace with hash 447576891, now seen corresponding path program 1 times [2024-10-12 20:22:54,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:54,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432398479] [2024-10-12 20:22:54,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:54,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:54,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:54,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:54,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:54,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432398479] [2024-10-12 20:22:54,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432398479] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:54,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:54,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-12 20:22:54,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230214587] [2024-10-12 20:22:54,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:54,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-12 20:22:54,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:54,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-12 20:22:54,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-10-12 20:22:54,848 INFO L87 Difference]: Start difference. First operand 49940 states and 69824 transitions. Second operand has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 10 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:55,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:55,618 INFO L93 Difference]: Finished difference Result 82381 states and 115439 transitions. [2024-10-12 20:22:55,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 20:22:55,618 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 10 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-10-12 20:22:55,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:55,699 INFO L225 Difference]: With dead ends: 82381 [2024-10-12 20:22:55,700 INFO L226 Difference]: Without dead ends: 76155 [2024-10-12 20:22:55,727 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-12 20:22:55,727 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 828 mSDsluCounter, 1772 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 2068 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:55,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [828 Valid, 2068 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 20:22:55,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76155 states. [2024-10-12 20:22:56,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76155 to 49950. [2024-10-12 20:22:56,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49950 states, 49949 states have (on average 1.3981060681895534) internal successors, (69834), 49949 states have internal predecessors, (69834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:56,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49950 states to 49950 states and 69834 transitions. [2024-10-12 20:22:56,676 INFO L78 Accepts]: Start accepts. Automaton has 49950 states and 69834 transitions. Word has length 76 [2024-10-12 20:22:56,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:56,676 INFO L471 AbstractCegarLoop]: Abstraction has 49950 states and 69834 transitions. [2024-10-12 20:22:56,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 10 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:56,676 INFO L276 IsEmpty]: Start isEmpty. Operand 49950 states and 69834 transitions. [2024-10-12 20:22:56,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-12 20:22:56,680 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:56,681 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] [2024-10-12 20:22:56,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-12 20:22:56,681 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:56,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:56,681 INFO L85 PathProgramCache]: Analyzing trace with hash 160341832, now seen corresponding path program 1 times [2024-10-12 20:22:56,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:56,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498808146] [2024-10-12 20:22:56,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:56,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:56,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:56,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:56,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:56,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498808146] [2024-10-12 20:22:56,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498808146] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:56,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:56,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:22:56,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407244273] [2024-10-12 20:22:56,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:56,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:22:56,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:56,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:22:56,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:22:56,748 INFO L87 Difference]: Start difference. First operand 49950 states and 69834 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) [2024-10-12 20:22:57,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:57,079 INFO L93 Difference]: Finished difference Result 106357 states and 148750 transitions. [2024-10-12 20:22:57,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:22:57,079 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 [2024-10-12 20:22:57,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:57,171 INFO L225 Difference]: With dead ends: 106357 [2024-10-12 20:22:57,171 INFO L226 Difference]: Without dead ends: 72848 [2024-10-12 20:22:57,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:22:57,211 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 169 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:57,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 404 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:22:57,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72848 states. [2024-10-12 20:22:58,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72848 to 72574. [2024-10-12 20:22:58,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72574 states, 72573 states have (on average 1.401361387843964) internal successors, (101701), 72573 states have internal predecessors, (101701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:58,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72574 states to 72574 states and 101701 transitions. [2024-10-12 20:22:58,314 INFO L78 Accepts]: Start accepts. Automaton has 72574 states and 101701 transitions. Word has length 77 [2024-10-12 20:22:58,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:22:58,315 INFO L471 AbstractCegarLoop]: Abstraction has 72574 states and 101701 transitions. [2024-10-12 20:22:58,315 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) [2024-10-12 20:22:58,315 INFO L276 IsEmpty]: Start isEmpty. Operand 72574 states and 101701 transitions. [2024-10-12 20:22:58,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-12 20:22:58,330 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:22:58,330 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:22:58,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-12 20:22:58,330 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:22:58,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:22:58,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1901503926, now seen corresponding path program 1 times [2024-10-12 20:22:58,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:22:58,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996274837] [2024-10-12 20:22:58,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:22:58,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:22:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:22:58,432 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:22:58,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:22:58,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996274837] [2024-10-12 20:22:58,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996274837] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:22:58,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:22:58,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:22:58,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299471574] [2024-10-12 20:22:58,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:22:58,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:22:58,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:22:58,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:22:58,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:22:58,434 INFO L87 Difference]: Start difference. First operand 72574 states and 101701 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:22:59,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:22:59,315 INFO L93 Difference]: Finished difference Result 146070 states and 206207 transitions. [2024-10-12 20:22:59,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:22:59,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2024-10-12 20:22:59,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:22:59,446 INFO L225 Difference]: With dead ends: 146070 [2024-10-12 20:22:59,446 INFO L226 Difference]: Without dead ends: 107438 [2024-10-12 20:22:59,487 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:22:59,487 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 115 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:22:59,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 486 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:22:59,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107438 states. [2024-10-12 20:23:00,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107438 to 103949. [2024-10-12 20:23:00,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103949 states, 103948 states have (on average 1.400613768422673) internal successors, (145591), 103948 states have internal predecessors, (145591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:00,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103949 states to 103949 states and 145591 transitions. [2024-10-12 20:23:00,811 INFO L78 Accepts]: Start accepts. Automaton has 103949 states and 145591 transitions. Word has length 89 [2024-10-12 20:23:00,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:00,812 INFO L471 AbstractCegarLoop]: Abstraction has 103949 states and 145591 transitions. [2024-10-12 20:23:00,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:00,812 INFO L276 IsEmpty]: Start isEmpty. Operand 103949 states and 145591 transitions. [2024-10-12 20:23:00,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-12 20:23:00,823 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:00,823 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-12 20:23:00,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-12 20:23:00,824 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:00,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:00,824 INFO L85 PathProgramCache]: Analyzing trace with hash -855430784, now seen corresponding path program 1 times [2024-10-12 20:23:00,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:00,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447865575] [2024-10-12 20:23:00,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:00,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:00,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:00,947 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:00,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:00,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447865575] [2024-10-12 20:23:00,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447865575] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:00,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:00,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:23:00,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24401505] [2024-10-12 20:23:00,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:00,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:23:00,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:00,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:23:00,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:23:00,950 INFO L87 Difference]: Start difference. First operand 103949 states and 145591 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:02,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:02,655 INFO L93 Difference]: Finished difference Result 256827 states and 360558 transitions. [2024-10-12 20:23:02,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 20:23:02,656 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-10-12 20:23:02,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:02,930 INFO L225 Difference]: With dead ends: 256827 [2024-10-12 20:23:02,930 INFO L226 Difference]: Without dead ends: 171731 [2024-10-12 20:23:03,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-10-12 20:23:03,020 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 1577 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1577 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:03,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1577 Valid, 439 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:23:03,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171731 states. [2024-10-12 20:23:05,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171731 to 104973. [2024-10-12 20:23:05,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104973 states, 104972 states have (on average 1.4030503372327858) internal successors, (147281), 104972 states have internal predecessors, (147281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:05,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104973 states to 104973 states and 147281 transitions. [2024-10-12 20:23:05,543 INFO L78 Accepts]: Start accepts. Automaton has 104973 states and 147281 transitions. Word has length 94 [2024-10-12 20:23:05,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:05,544 INFO L471 AbstractCegarLoop]: Abstraction has 104973 states and 147281 transitions. [2024-10-12 20:23:05,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 6 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:05,544 INFO L276 IsEmpty]: Start isEmpty. Operand 104973 states and 147281 transitions. [2024-10-12 20:23:05,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-12 20:23:05,553 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:05,553 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-12 20:23:05,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-12 20:23:05,553 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:05,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:05,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1977611808, now seen corresponding path program 1 times [2024-10-12 20:23:05,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:05,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458486615] [2024-10-12 20:23:05,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:05,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:05,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:05,611 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:05,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:05,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458486615] [2024-10-12 20:23:05,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458486615] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:05,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:05,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:23:05,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952326557] [2024-10-12 20:23:05,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:05,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:23:05,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:05,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:23:05,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:23:05,613 INFO L87 Difference]: Start difference. First operand 104973 states and 147281 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:05,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:05,949 INFO L93 Difference]: Finished difference Result 120264 states and 168140 transitions. [2024-10-12 20:23:05,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:23:05,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-10-12 20:23:05,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:06,036 INFO L225 Difference]: With dead ends: 120264 [2024-10-12 20:23:06,037 INFO L226 Difference]: Without dead ends: 75879 [2024-10-12 20:23:06,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:23:06,078 INFO L432 NwaCegarLoop]: 379 mSDtfsCounter, 142 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:06,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 569 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:23:06,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75879 states. [2024-10-12 20:23:07,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75879 to 75877. [2024-10-12 20:23:07,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75877 states, 75876 states have (on average 1.380041119721651) internal successors, (104712), 75876 states have internal predecessors, (104712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:07,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75877 states to 75877 states and 104712 transitions. [2024-10-12 20:23:07,248 INFO L78 Accepts]: Start accepts. Automaton has 75877 states and 104712 transitions. Word has length 94 [2024-10-12 20:23:07,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:07,249 INFO L471 AbstractCegarLoop]: Abstraction has 75877 states and 104712 transitions. [2024-10-12 20:23:07,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:07,249 INFO L276 IsEmpty]: Start isEmpty. Operand 75877 states and 104712 transitions. [2024-10-12 20:23:07,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-12 20:23:07,256 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:07,256 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-12 20:23:07,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-12 20:23:07,256 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:07,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:07,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1177718009, now seen corresponding path program 1 times [2024-10-12 20:23:07,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:07,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478894663] [2024-10-12 20:23:07,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:07,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:07,376 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:07,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:07,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478894663] [2024-10-12 20:23:07,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478894663] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:07,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:07,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:23:07,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674089189] [2024-10-12 20:23:07,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:07,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:23:07,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:07,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:23:07,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:23:07,379 INFO L87 Difference]: Start difference. First operand 75877 states and 104712 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:08,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:08,794 INFO L93 Difference]: Finished difference Result 240630 states and 334571 transitions. [2024-10-12 20:23:08,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 20:23:08,795 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-10-12 20:23:08,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:09,080 INFO L225 Difference]: With dead ends: 240630 [2024-10-12 20:23:09,080 INFO L226 Difference]: Without dead ends: 190617 [2024-10-12 20:23:09,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-10-12 20:23:09,138 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 1402 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1402 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:09,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1402 Valid, 441 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:23:09,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190617 states. [2024-10-12 20:23:11,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190617 to 108285. [2024-10-12 20:23:11,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108285 states, 108284 states have (on average 1.3958110154778176) internal successors, (151144), 108284 states have internal predecessors, (151144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:11,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108285 states to 108285 states and 151144 transitions. [2024-10-12 20:23:11,292 INFO L78 Accepts]: Start accepts. Automaton has 108285 states and 151144 transitions. Word has length 95 [2024-10-12 20:23:11,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:11,292 INFO L471 AbstractCegarLoop]: Abstraction has 108285 states and 151144 transitions. [2024-10-12 20:23:11,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:11,293 INFO L276 IsEmpty]: Start isEmpty. Operand 108285 states and 151144 transitions. [2024-10-12 20:23:11,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-12 20:23:11,301 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:11,301 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-12 20:23:11,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-12 20:23:11,302 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:11,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:11,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1775173248, now seen corresponding path program 1 times [2024-10-12 20:23:11,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:11,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781423185] [2024-10-12 20:23:11,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:11,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:11,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:11,977 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:11,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:11,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781423185] [2024-10-12 20:23:11,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781423185] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:11,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:11,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:23:11,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697051820] [2024-10-12 20:23:11,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:11,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:23:11,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:11,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:23:11,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:23:11,980 INFO L87 Difference]: Start difference. First operand 108285 states and 151144 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:12,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:12,790 INFO L93 Difference]: Finished difference Result 279578 states and 390684 transitions. [2024-10-12 20:23:12,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 20:23:12,790 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2024-10-12 20:23:12,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:13,144 INFO L225 Difference]: With dead ends: 279578 [2024-10-12 20:23:13,144 INFO L226 Difference]: Without dead ends: 236109 [2024-10-12 20:23:13,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-10-12 20:23:13,237 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 1299 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1299 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:13,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1299 Valid, 407 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:23:13,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236109 states.