./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label02.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 71ab165d8600c7bf3c601364205c3c131ed910663de3282b3121f676cf35500e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 04:45:07,083 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 04:45:07,154 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 04:45:07,161 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 04:45:07,162 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 04:45:07,202 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 04:45:07,203 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 04:45:07,203 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 04:45:07,204 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 04:45:07,205 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 04:45:07,205 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 04:45:07,206 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 04:45:07,206 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 04:45:07,207 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 04:45:07,208 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 04:45:07,209 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 04:45:07,209 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 04:45:07,209 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 04:45:07,210 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 04:45:07,210 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 04:45:07,210 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 04:45:07,214 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 04:45:07,214 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 04:45:07,214 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 04:45:07,214 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 04:45:07,215 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 04:45:07,215 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 04:45:07,215 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 04:45:07,215 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 04:45:07,215 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 04:45:07,216 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 04:45:07,216 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 04:45:07,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 04:45:07,216 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 04:45:07,217 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 04:45:07,217 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 04:45:07,217 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 04:45:07,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 04:45:07,219 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 04:45:07,219 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 04:45:07,219 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 04:45:07,220 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 04:45:07,220 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71ab165d8600c7bf3c601364205c3c131ed910663de3282b3121f676cf35500e [2024-10-11 04:45:07,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 04:45:07,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 04:45:07,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 04:45:07,571 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 04:45:07,571 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 04:45:07,573 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label02.c [2024-10-11 04:45:09,084 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 04:45:09,602 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 04:45:09,604 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label02.c [2024-10-11 04:45:09,643 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/79c270fbe/d78e6d9d7c2d4fba99bf8cbf32ecb926/FLAGff8953bb8 [2024-10-11 04:45:09,660 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/79c270fbe/d78e6d9d7c2d4fba99bf8cbf32ecb926 [2024-10-11 04:45:09,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 04:45:09,666 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 04:45:09,668 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 04:45:09,668 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 04:45:09,675 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 04:45:09,676 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:45:09" (1/1) ... [2024-10-11 04:45:09,677 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a1c03aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:09, skipping insertion in model container [2024-10-11 04:45:09,677 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:45:09" (1/1) ... [2024-10-11 04:45:09,793 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 04:45:10,166 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/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label02.c[8616,8629] [2024-10-11 04:45:10,228 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/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label02.c[15906,15919] [2024-10-11 04:45:10,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 04:45:10,945 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 04:45:10,979 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/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label02.c[8616,8629] [2024-10-11 04:45:10,993 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/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label02.c[15906,15919] [2024-10-11 04:45:11,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 04:45:11,470 INFO L204 MainTranslator]: Completed translation [2024-10-11 04:45:11,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:11 WrapperNode [2024-10-11 04:45:11,471 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 04:45:11,472 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 04:45:11,472 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 04:45:11,472 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 04:45:11,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:11" (1/1) ... [2024-10-11 04:45:11,550 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:11" (1/1) ... [2024-10-11 04:45:11,851 INFO L138 Inliner]: procedures = 34, calls = 20, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 5039 [2024-10-11 04:45:11,852 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 04:45:11,853 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 04:45:11,853 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 04:45:11,853 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 04:45:11,864 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:11" (1/1) ... [2024-10-11 04:45:11,864 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:11" (1/1) ... [2024-10-11 04:45:11,918 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:11" (1/1) ... [2024-10-11 04:45:12,137 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]. [2024-10-11 04:45:12,137 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:11" (1/1) ... [2024-10-11 04:45:12,137 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:11" (1/1) ... [2024-10-11 04:45:12,333 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:11" (1/1) ... [2024-10-11 04:45:12,358 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:11" (1/1) ... [2024-10-11 04:45:12,377 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:11" (1/1) ... [2024-10-11 04:45:12,400 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:11" (1/1) ... [2024-10-11 04:45:12,451 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 04:45:12,452 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 04:45:12,452 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 04:45:12,453 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 04:45:12,454 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:11" (1/1) ... [2024-10-11 04:45:12,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 04:45:12,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:45:12,488 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 04:45:12,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 04:45:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 04:45:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 04:45:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 04:45:12,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 04:45:12,626 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 04:45:12,627 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 04:45:16,937 INFO L? ?]: Removed 737 outVars from TransFormulas that were not future-live. [2024-10-11 04:45:16,937 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 04:45:17,023 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 04:45:17,023 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 04:45:17,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:45:17 BoogieIcfgContainer [2024-10-11 04:45:17,024 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 04:45:17,026 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 04:45:17,026 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 04:45:17,030 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 04:45:17,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 04:45:09" (1/3) ... [2024-10-11 04:45:17,031 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@489d716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:45:17, skipping insertion in model container [2024-10-11 04:45:17,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:11" (2/3) ... [2024-10-11 04:45:17,031 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@489d716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:45:17, skipping insertion in model container [2024-10-11 04:45:17,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:45:17" (3/3) ... [2024-10-11 04:45:17,033 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label02.c [2024-10-11 04:45:17,052 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 04:45:17,053 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 04:45:17,146 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 04:45:17,156 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;@7d68ff12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 04:45:17,156 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-11 04:45:17,165 INFO L276 IsEmpty]: Start isEmpty. Operand has 820 states, 817 states have (on average 1.97796817625459) internal successors, (1616), 819 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:17,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-11 04:45:17,174 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:45:17,175 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:45:17,176 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:45:17,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:45:17,181 INFO L85 PathProgramCache]: Analyzing trace with hash -404549255, now seen corresponding path program 1 times [2024-10-11 04:45:17,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:45:17,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249278837] [2024-10-11 04:45:17,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:45:17,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:45:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:45:17,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:45:17,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:45:17,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249278837] [2024-10-11 04:45:17,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249278837] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:45:17,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:45:17,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 04:45:17,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234229011] [2024-10-11 04:45:17,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:45:17,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 04:45:17,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:45:17,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 04:45:17,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 04:45:17,509 INFO L87 Difference]: Start difference. First operand has 820 states, 817 states have (on average 1.97796817625459) internal successors, (1616), 819 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:17,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:45:17,626 INFO L93 Difference]: Finished difference Result 1613 states and 3180 transitions. [2024-10-11 04:45:17,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 04:45:17,629 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2024-10-11 04:45:17,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:45:17,653 INFO L225 Difference]: With dead ends: 1613 [2024-10-11 04:45:17,653 INFO L226 Difference]: Without dead ends: 816 [2024-10-11 04:45:17,660 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 04:45:17,664 INFO L432 NwaCegarLoop]: 1545 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1545 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:45:17,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1545 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:45:17,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2024-10-11 04:45:17,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 816. [2024-10-11 04:45:17,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 814 states have (on average 1.898034398034398) internal successors, (1545), 815 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:17,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1545 transitions. [2024-10-11 04:45:17,754 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1545 transitions. Word has length 19 [2024-10-11 04:45:17,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:45:17,754 INFO L471 AbstractCegarLoop]: Abstraction has 816 states and 1545 transitions. [2024-10-11 04:45:17,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:17,755 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1545 transitions. [2024-10-11 04:45:17,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-11 04:45:17,756 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:45:17,757 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:45:17,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 04:45:17,757 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:45:17,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:45:17,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1684412933, now seen corresponding path program 1 times [2024-10-11 04:45:17,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:45:17,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948053046] [2024-10-11 04:45:17,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:45:17,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:45:17,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:45:17,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:45:17,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:45:17,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948053046] [2024-10-11 04:45:17,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948053046] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:45:17,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:45:17,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 04:45:17,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795025169] [2024-10-11 04:45:17,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:45:17,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 04:45:17,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:45:17,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 04:45:17,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 04:45:17,979 INFO L87 Difference]: Start difference. First operand 816 states and 1545 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:18,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:45:18,093 INFO L93 Difference]: Finished difference Result 889 states and 1660 transitions. [2024-10-11 04:45:18,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 04:45:18,094 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2024-10-11 04:45:18,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:45:18,101 INFO L225 Difference]: With dead ends: 889 [2024-10-11 04:45:18,102 INFO L226 Difference]: Without dead ends: 851 [2024-10-11 04:45:18,103 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 [2024-10-11 04:45:18,104 INFO L432 NwaCegarLoop]: 1540 mSDtfsCounter, 55 mSDsluCounter, 3052 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4592 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:45:18,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4592 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:45:18,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2024-10-11 04:45:18,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 816. [2024-10-11 04:45:18,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 814 states have (on average 1.8697788697788698) internal successors, (1522), 815 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:18,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1522 transitions. [2024-10-11 04:45:18,142 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1522 transitions. Word has length 19 [2024-10-11 04:45:18,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:45:18,143 INFO L471 AbstractCegarLoop]: Abstraction has 816 states and 1522 transitions. [2024-10-11 04:45:18,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:18,143 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1522 transitions. [2024-10-11 04:45:18,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-11 04:45:18,146 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:45:18,146 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] [2024-10-11 04:45:18,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 04:45:18,148 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:45:18,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:45:18,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1796642934, now seen corresponding path program 1 times [2024-10-11 04:45:18,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:45:18,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66649336] [2024-10-11 04:45:18,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:45:18,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:45:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:45:18,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:45:18,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:45:18,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66649336] [2024-10-11 04:45:18,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66649336] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:45:18,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:45:18,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 04:45:18,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069709129] [2024-10-11 04:45:18,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:45:18,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 04:45:18,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:45:18,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 04:45:18,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 04:45:18,395 INFO L87 Difference]: Start difference. First operand 816 states and 1522 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:18,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:45:18,627 INFO L93 Difference]: Finished difference Result 1096 states and 1970 transitions. [2024-10-11 04:45:18,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 04:45:18,628 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2024-10-11 04:45:18,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:45:18,634 INFO L225 Difference]: With dead ends: 1096 [2024-10-11 04:45:18,634 INFO L226 Difference]: Without dead ends: 1061 [2024-10-11 04:45:18,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-11 04:45:18,637 INFO L432 NwaCegarLoop]: 1515 mSDtfsCounter, 6246 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6246 SdHoareTripleChecker+Valid, 2155 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:45:18,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6246 Valid, 2155 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:45:18,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2024-10-11 04:45:18,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 849. [2024-10-11 04:45:18,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 847 states have (on average 1.859504132231405) internal successors, (1575), 848 states have internal predecessors, (1575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:18,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1575 transitions. [2024-10-11 04:45:18,661 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1575 transitions. Word has length 41 [2024-10-11 04:45:18,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:45:18,664 INFO L471 AbstractCegarLoop]: Abstraction has 849 states and 1575 transitions. [2024-10-11 04:45:18,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:18,664 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1575 transitions. [2024-10-11 04:45:18,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-11 04:45:18,666 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:45:18,666 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] [2024-10-11 04:45:18,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 04:45:18,666 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:45:18,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:45:18,667 INFO L85 PathProgramCache]: Analyzing trace with hash -125681594, now seen corresponding path program 1 times [2024-10-11 04:45:18,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:45:18,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607591837] [2024-10-11 04:45:18,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:45:18,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:45:18,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:45:18,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:45:18,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:45:18,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607591837] [2024-10-11 04:45:18,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607591837] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:45:18,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:45:18,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:45:18,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561380562] [2024-10-11 04:45:18,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:45:18,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:45:18,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:45:18,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:45:18,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:45:18,764 INFO L87 Difference]: Start difference. First operand 849 states and 1575 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:18,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:45:18,797 INFO L93 Difference]: Finished difference Result 974 states and 1774 transitions. [2024-10-11 04:45:18,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:45:18,798 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2024-10-11 04:45:18,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:45:18,802 INFO L225 Difference]: With dead ends: 974 [2024-10-11 04:45:18,802 INFO L226 Difference]: Without dead ends: 906 [2024-10-11 04:45:18,805 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 [2024-10-11 04:45:18,807 INFO L432 NwaCegarLoop]: 1517 mSDtfsCounter, 1472 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 1567 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:45:18,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1472 Valid, 1567 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:45:18,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2024-10-11 04:45:18,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 904. [2024-10-11 04:45:18,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904 states, 902 states have (on average 1.8414634146341464) internal successors, (1661), 903 states have internal predecessors, (1661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:18,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1661 transitions. [2024-10-11 04:45:18,828 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1661 transitions. Word has length 43 [2024-10-11 04:45:18,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:45:18,829 INFO L471 AbstractCegarLoop]: Abstraction has 904 states and 1661 transitions. [2024-10-11 04:45:18,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:18,830 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1661 transitions. [2024-10-11 04:45:18,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-11 04:45:18,835 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:45:18,835 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] [2024-10-11 04:45:18,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 04:45:18,835 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:45:18,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:45:18,836 INFO L85 PathProgramCache]: Analyzing trace with hash -123536642, now seen corresponding path program 1 times [2024-10-11 04:45:18,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:45:18,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978291586] [2024-10-11 04:45:18,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:45:18,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:45:18,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:45:19,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:45:19,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:45:19,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978291586] [2024-10-11 04:45:19,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978291586] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:45:19,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:45:19,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 04:45:19,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277555847] [2024-10-11 04:45:19,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:45:19,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 04:45:19,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:45:19,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 04:45:19,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 04:45:19,103 INFO L87 Difference]: Start difference. First operand 904 states and 1661 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:19,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:45:19,250 INFO L93 Difference]: Finished difference Result 1029 states and 1857 transitions. [2024-10-11 04:45:19,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 04:45:19,251 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2024-10-11 04:45:19,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:45:19,256 INFO L225 Difference]: With dead ends: 1029 [2024-10-11 04:45:19,256 INFO L226 Difference]: Without dead ends: 906 [2024-10-11 04:45:19,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:45:19,258 INFO L432 NwaCegarLoop]: 1513 mSDtfsCounter, 5916 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5916 SdHoareTripleChecker+Valid, 1666 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:45:19,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5916 Valid, 1666 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:45:19,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2024-10-11 04:45:19,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 904. [2024-10-11 04:45:19,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904 states, 902 states have (on average 1.8392461197339247) internal successors, (1659), 903 states have internal predecessors, (1659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:19,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1659 transitions. [2024-10-11 04:45:19,283 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1659 transitions. Word has length 43 [2024-10-11 04:45:19,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:45:19,283 INFO L471 AbstractCegarLoop]: Abstraction has 904 states and 1659 transitions. [2024-10-11 04:45:19,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:19,285 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1659 transitions. [2024-10-11 04:45:19,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-11 04:45:19,286 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:45:19,286 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] [2024-10-11 04:45:19,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 04:45:19,287 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:45:19,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:45:19,289 INFO L85 PathProgramCache]: Analyzing trace with hash 336976631, now seen corresponding path program 1 times [2024-10-11 04:45:19,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:45:19,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067528052] [2024-10-11 04:45:19,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:45:19,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:45:19,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:45:19,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:45:19,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:45:19,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067528052] [2024-10-11 04:45:19,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067528052] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:45:19,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:45:19,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 04:45:19,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558954820] [2024-10-11 04:45:19,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:45:19,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 04:45:19,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:45:19,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 04:45:19,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 04:45:19,449 INFO L87 Difference]: Start difference. First operand 904 states and 1659 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:19,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:45:19,497 INFO L93 Difference]: Finished difference Result 910 states and 1666 transitions. [2024-10-11 04:45:19,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 04:45:19,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2024-10-11 04:45:19,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:45:19,505 INFO L225 Difference]: With dead ends: 910 [2024-10-11 04:45:19,505 INFO L226 Difference]: Without dead ends: 908 [2024-10-11 04:45:19,506 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 [2024-10-11 04:45:19,507 INFO L432 NwaCegarLoop]: 1518 mSDtfsCounter, 0 mSDsluCounter, 3028 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4546 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:45:19,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4546 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:45:19,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2024-10-11 04:45:19,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 908. [2024-10-11 04:45:19,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 906 states have (on average 1.8344370860927153) internal successors, (1662), 907 states have internal predecessors, (1662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:19,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1662 transitions. [2024-10-11 04:45:19,535 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1662 transitions. Word has length 44 [2024-10-11 04:45:19,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:45:19,536 INFO L471 AbstractCegarLoop]: Abstraction has 908 states and 1662 transitions. [2024-10-11 04:45:19,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:19,536 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1662 transitions. [2024-10-11 04:45:19,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-11 04:45:19,538 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:45:19,538 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] [2024-10-11 04:45:19,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 04:45:19,539 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:45:19,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:45:19,540 INFO L85 PathProgramCache]: Analyzing trace with hash 514996542, now seen corresponding path program 1 times [2024-10-11 04:45:19,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:45:19,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324336357] [2024-10-11 04:45:19,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:45:19,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:45:19,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:45:19,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:45:19,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:45:19,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324336357] [2024-10-11 04:45:19,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324336357] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:45:19,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:45:19,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:45:19,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323585305] [2024-10-11 04:45:19,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:45:19,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:45:19,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:45:19,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:45:19,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:45:19,613 INFO L87 Difference]: Start difference. First operand 908 states and 1662 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:19,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:45:19,656 INFO L93 Difference]: Finished difference Result 1046 states and 1875 transitions. [2024-10-11 04:45:19,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:45:19,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2024-10-11 04:45:19,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:45:19,660 INFO L225 Difference]: With dead ends: 1046 [2024-10-11 04:45:19,661 INFO L226 Difference]: Without dead ends: 974 [2024-10-11 04:45:19,661 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 [2024-10-11 04:45:19,664 INFO L432 NwaCegarLoop]: 1559 mSDtfsCounter, 1484 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1615 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:45:19,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1615 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:45:19,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2024-10-11 04:45:19,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 972. [2024-10-11 04:45:19,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 970 states have (on average 1.81340206185567) internal successors, (1759), 971 states have internal predecessors, (1759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:19,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1759 transitions. [2024-10-11 04:45:19,690 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1759 transitions. Word has length 45 [2024-10-11 04:45:19,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:45:19,692 INFO L471 AbstractCegarLoop]: Abstraction has 972 states and 1759 transitions. [2024-10-11 04:45:19,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:19,693 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1759 transitions. [2024-10-11 04:45:19,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-11 04:45:19,694 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:45:19,694 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] [2024-10-11 04:45:19,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 04:45:19,694 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:45:19,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:45:19,695 INFO L85 PathProgramCache]: Analyzing trace with hash -70715586, now seen corresponding path program 1 times [2024-10-11 04:45:19,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:45:19,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807975685] [2024-10-11 04:45:19,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:45:19,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:45:19,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:45:19,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:45:19,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:45:19,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807975685] [2024-10-11 04:45:19,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807975685] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:45:19,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:45:19,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:45:19,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82423836] [2024-10-11 04:45:19,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:45:19,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:45:19,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:45:19,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:45:19,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:45:19,805 INFO L87 Difference]: Start difference. First operand 972 states and 1759 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:19,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:45:19,843 INFO L93 Difference]: Finished difference Result 1326 states and 2299 transitions. [2024-10-11 04:45:19,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:45:19,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2024-10-11 04:45:19,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:45:19,849 INFO L225 Difference]: With dead ends: 1326 [2024-10-11 04:45:19,849 INFO L226 Difference]: Without dead ends: 1137 [2024-10-11 04:45:19,850 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 [2024-10-11 04:45:19,851 INFO L432 NwaCegarLoop]: 1551 mSDtfsCounter, 1480 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1480 SdHoareTripleChecker+Valid, 1615 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:45:19,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1480 Valid, 1615 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:45:19,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2024-10-11 04:45:19,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 1135. [2024-10-11 04:45:19,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1135 states, 1133 states have (on average 1.766107678729038) internal successors, (2001), 1134 states have internal predecessors, (2001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:19,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1135 states to 1135 states and 2001 transitions. [2024-10-11 04:45:19,878 INFO L78 Accepts]: Start accepts. Automaton has 1135 states and 2001 transitions. Word has length 45 [2024-10-11 04:45:19,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:45:19,879 INFO L471 AbstractCegarLoop]: Abstraction has 1135 states and 2001 transitions. [2024-10-11 04:45:19,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:19,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1135 states and 2001 transitions. [2024-10-11 04:45:19,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-11 04:45:19,880 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:45:19,880 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] [2024-10-11 04:45:19,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 04:45:19,880 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:45:19,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:45:19,881 INFO L85 PathProgramCache]: Analyzing trace with hash 818017854, now seen corresponding path program 1 times [2024-10-11 04:45:19,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:45:19,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943749254] [2024-10-11 04:45:19,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:45:19,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:45:19,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:45:19,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:45:19,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:45:19,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943749254] [2024-10-11 04:45:19,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943749254] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:45:19,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:45:19,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:45:19,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558508668] [2024-10-11 04:45:19,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:45:19,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:45:19,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:45:19,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:45:19,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:45:19,940 INFO L87 Difference]: Start difference. First operand 1135 states and 2001 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:19,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:45:19,982 INFO L93 Difference]: Finished difference Result 1791 states and 2983 transitions. [2024-10-11 04:45:19,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:45:19,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2024-10-11 04:45:19,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:45:19,989 INFO L225 Difference]: With dead ends: 1791 [2024-10-11 04:45:19,989 INFO L226 Difference]: Without dead ends: 1439 [2024-10-11 04:45:19,990 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 [2024-10-11 04:45:19,991 INFO L432 NwaCegarLoop]: 1549 mSDtfsCounter, 1478 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1478 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:45:19,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1478 Valid, 1617 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:45:19,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1439 states. [2024-10-11 04:45:20,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1439 to 1437. [2024-10-11 04:45:20,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1437 states, 1435 states have (on average 1.6982578397212544) internal successors, (2437), 1436 states have internal predecessors, (2437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:20,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 2437 transitions. [2024-10-11 04:45:20,025 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 2437 transitions. Word has length 45 [2024-10-11 04:45:20,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:45:20,026 INFO L471 AbstractCegarLoop]: Abstraction has 1437 states and 2437 transitions. [2024-10-11 04:45:20,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:20,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 2437 transitions. [2024-10-11 04:45:20,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-11 04:45:20,026 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:45:20,026 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] [2024-10-11 04:45:20,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 04:45:20,027 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:45:20,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:45:20,028 INFO L85 PathProgramCache]: Analyzing trace with hash 554940478, now seen corresponding path program 1 times [2024-10-11 04:45:20,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:45:20,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764777194] [2024-10-11 04:45:20,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:45:20,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:45:20,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:45:20,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:45:20,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:45:20,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764777194] [2024-10-11 04:45:20,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764777194] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:45:20,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:45:20,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:45:20,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366546924] [2024-10-11 04:45:20,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:45:20,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:45:20,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:45:20,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:45:20,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:45:20,080 INFO L87 Difference]: Start difference. First operand 1437 states and 2437 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:20,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:45:20,124 INFO L93 Difference]: Finished difference Result 2649 states and 4207 transitions. [2024-10-11 04:45:20,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:45:20,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2024-10-11 04:45:20,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:45:20,133 INFO L225 Difference]: With dead ends: 2649 [2024-10-11 04:45:20,133 INFO L226 Difference]: Without dead ends: 1995 [2024-10-11 04:45:20,135 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 [2024-10-11 04:45:20,135 INFO L432 NwaCegarLoop]: 1561 mSDtfsCounter, 1482 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 1621 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:45:20,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1482 Valid, 1621 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:45:20,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1995 states. [2024-10-11 04:45:20,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1995 to 1993. [2024-10-11 04:45:20,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1993 states, 1991 states have (on average 1.6137619286790557) internal successors, (3213), 1992 states have internal predecessors, (3213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:20,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1993 states to 1993 states and 3213 transitions. [2024-10-11 04:45:20,184 INFO L78 Accepts]: Start accepts. Automaton has 1993 states and 3213 transitions. Word has length 45 [2024-10-11 04:45:20,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:45:20,185 INFO L471 AbstractCegarLoop]: Abstraction has 1993 states and 3213 transitions. [2024-10-11 04:45:20,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:20,185 INFO L276 IsEmpty]: Start isEmpty. Operand 1993 states and 3213 transitions. [2024-10-11 04:45:20,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-11 04:45:20,186 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:45:20,187 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:45:20,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 04:45:20,187 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:45:20,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:45:20,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1873610167, now seen corresponding path program 1 times [2024-10-11 04:45:20,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:45:20,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150943797] [2024-10-11 04:45:20,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:45:20,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:45:20,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:45:20,341 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 04:45:20,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:45:20,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150943797] [2024-10-11 04:45:20,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150943797] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:45:20,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:45:20,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 04:45:20,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665651098] [2024-10-11 04:45:20,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:45:20,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 04:45:20,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:45:20,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 04:45:20,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 04:45:20,344 INFO L87 Difference]: Start difference. First operand 1993 states and 3213 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:20,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:45:20,526 INFO L93 Difference]: Finished difference Result 6755 states and 10074 transitions. [2024-10-11 04:45:20,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 04:45:20,527 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 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 61 [2024-10-11 04:45:20,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:45:20,548 INFO L225 Difference]: With dead ends: 6755 [2024-10-11 04:45:20,549 INFO L226 Difference]: Without dead ends: 5889 [2024-10-11 04:45:20,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-11 04:45:20,553 INFO L432 NwaCegarLoop]: 1566 mSDtfsCounter, 4637 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4637 SdHoareTripleChecker+Valid, 3284 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:45:20,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4637 Valid, 3284 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:45:20,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5889 states. [2024-10-11 04:45:20,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5889 to 3033. [2024-10-11 04:45:20,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3033 states, 3031 states have (on average 1.5483338832068625) internal successors, (4693), 3032 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:20,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3033 states to 3033 states and 4693 transitions. [2024-10-11 04:45:20,655 INFO L78 Accepts]: Start accepts. Automaton has 3033 states and 4693 transitions. Word has length 61 [2024-10-11 04:45:20,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:45:20,656 INFO L471 AbstractCegarLoop]: Abstraction has 3033 states and 4693 transitions. [2024-10-11 04:45:20,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:20,656 INFO L276 IsEmpty]: Start isEmpty. Operand 3033 states and 4693 transitions. [2024-10-11 04:45:20,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-11 04:45:20,657 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:45:20,657 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:45:20,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 04:45:20,658 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:45:20,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:45:20,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1287898039, now seen corresponding path program 1 times [2024-10-11 04:45:20,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:45:20,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380523125] [2024-10-11 04:45:20,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:45:20,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:45:20,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:45:20,809 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 04:45:20,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:45:20,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380523125] [2024-10-11 04:45:20,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380523125] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:45:20,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:45:20,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 04:45:20,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860225926] [2024-10-11 04:45:20,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:45:20,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 04:45:20,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:45:20,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 04:45:20,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 04:45:20,813 INFO L87 Difference]: Start difference. First operand 3033 states and 4693 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:21,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:45:21,067 INFO L93 Difference]: Finished difference Result 7963 states and 11802 transitions. [2024-10-11 04:45:21,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 04:45:21,068 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 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 61 [2024-10-11 04:45:21,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:45:21,092 INFO L225 Difference]: With dead ends: 7963 [2024-10-11 04:45:21,092 INFO L226 Difference]: Without dead ends: 6753 [2024-10-11 04:45:21,097 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-11 04:45:21,098 INFO L432 NwaCegarLoop]: 1566 mSDtfsCounter, 4672 mSDsluCounter, 1738 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4672 SdHoareTripleChecker+Valid, 3304 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:45:21,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4672 Valid, 3304 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:45:21,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6753 states. [2024-10-11 04:45:21,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6753 to 4673. [2024-10-11 04:45:21,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4673 states, 4671 states have (on average 1.5031042603296938) internal successors, (7021), 4672 states have internal predecessors, (7021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:21,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4673 states to 4673 states and 7021 transitions. [2024-10-11 04:45:21,253 INFO L78 Accepts]: Start accepts. Automaton has 4673 states and 7021 transitions. Word has length 61 [2024-10-11 04:45:21,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:45:21,253 INFO L471 AbstractCegarLoop]: Abstraction has 4673 states and 7021 transitions. [2024-10-11 04:45:21,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:21,254 INFO L276 IsEmpty]: Start isEmpty. Operand 4673 states and 7021 transitions. [2024-10-11 04:45:21,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-11 04:45:21,255 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:45:21,255 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:45:21,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 04:45:21,255 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:45:21,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:45:21,256 INFO L85 PathProgramCache]: Analyzing trace with hash -2118335817, now seen corresponding path program 1 times [2024-10-11 04:45:21,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:45:21,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060893863] [2024-10-11 04:45:21,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:45:21,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:45:21,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:45:21,380 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 04:45:21,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:45:21,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060893863] [2024-10-11 04:45:21,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060893863] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:45:21,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:45:21,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 04:45:21,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506177021] [2024-10-11 04:45:21,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:45:21,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 04:45:21,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:45:21,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 04:45:21,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 04:45:21,384 INFO L87 Difference]: Start difference. First operand 4673 states and 7021 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:21,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:45:21,629 INFO L93 Difference]: Finished difference Result 9171 states and 13522 transitions. [2024-10-11 04:45:21,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 04:45:21,630 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 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 61 [2024-10-11 04:45:21,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:45:21,659 INFO L225 Difference]: With dead ends: 9171 [2024-10-11 04:45:21,659 INFO L226 Difference]: Without dead ends: 7961 [2024-10-11 04:45:21,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-11 04:45:21,665 INFO L432 NwaCegarLoop]: 1566 mSDtfsCounter, 4667 mSDsluCounter, 1752 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4667 SdHoareTripleChecker+Valid, 3318 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:45:21,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4667 Valid, 3318 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:45:21,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7961 states. [2024-10-11 04:45:21,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7961 to 5881. [2024-10-11 04:45:21,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5881 states, 5879 states have (on average 1.4868174859670011) internal successors, (8741), 5880 states have internal predecessors, (8741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:21,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5881 states to 5881 states and 8741 transitions. [2024-10-11 04:45:21,882 INFO L78 Accepts]: Start accepts. Automaton has 5881 states and 8741 transitions. Word has length 61 [2024-10-11 04:45:21,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:45:21,885 INFO L471 AbstractCegarLoop]: Abstraction has 5881 states and 8741 transitions. [2024-10-11 04:45:21,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:21,886 INFO L276 IsEmpty]: Start isEmpty. Operand 5881 states and 8741 transitions. [2024-10-11 04:45:21,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-11 04:45:21,887 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:45:21,888 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:45:21,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 04:45:21,888 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:45:21,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:45:21,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1913554103, now seen corresponding path program 1 times [2024-10-11 04:45:21,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:45:21,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212971958] [2024-10-11 04:45:21,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:45:21,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:45:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:45:22,079 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 04:45:22,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:45:22,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212971958] [2024-10-11 04:45:22,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212971958] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:45:22,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:45:22,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 04:45:22,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121196025] [2024-10-11 04:45:22,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:45:22,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 04:45:22,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:45:22,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 04:45:22,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 04:45:22,082 INFO L87 Difference]: Start difference. First operand 5881 states and 8741 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:22,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:45:22,430 INFO L93 Difference]: Finished difference Result 10379 states and 15242 transitions. [2024-10-11 04:45:22,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 04:45:22,431 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 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 61 [2024-10-11 04:45:22,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:45:22,451 INFO L225 Difference]: With dead ends: 10379 [2024-10-11 04:45:22,451 INFO L226 Difference]: Without dead ends: 9169 [2024-10-11 04:45:22,457 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-11 04:45:22,458 INFO L432 NwaCegarLoop]: 1565 mSDtfsCounter, 4637 mSDsluCounter, 1785 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4637 SdHoareTripleChecker+Valid, 3350 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:45:22,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4637 Valid, 3350 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:45:22,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9169 states. [2024-10-11 04:45:22,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9169 to 7089. [2024-10-11 04:45:22,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7089 states, 7087 states have (on average 1.4760829688161423) internal successors, (10461), 7088 states have internal predecessors, (10461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:22,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7089 states to 7089 states and 10461 transitions. [2024-10-11 04:45:22,736 INFO L78 Accepts]: Start accepts. Automaton has 7089 states and 10461 transitions. Word has length 61 [2024-10-11 04:45:22,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:45:22,736 INFO L471 AbstractCegarLoop]: Abstraction has 7089 states and 10461 transitions. [2024-10-11 04:45:22,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:22,736 INFO L276 IsEmpty]: Start isEmpty. Operand 7089 states and 10461 transitions. [2024-10-11 04:45:22,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-11 04:45:22,740 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:45:22,740 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:45:22,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 04:45:22,740 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:45:22,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:45:22,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1134695091, now seen corresponding path program 1 times [2024-10-11 04:45:22,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:45:22,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489840103] [2024-10-11 04:45:22,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:45:22,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:45:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:45:22,851 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:45:22,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:45:22,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489840103] [2024-10-11 04:45:22,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489840103] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:45:22,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:45:22,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:45:22,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484932053] [2024-10-11 04:45:22,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:45:22,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:45:22,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:45:22,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:45:22,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:45:22,855 INFO L87 Difference]: Start difference. First operand 7089 states and 10461 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 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) [2024-10-11 04:45:23,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:45:23,036 INFO L93 Difference]: Finished difference Result 13397 states and 19455 transitions. [2024-10-11 04:45:23,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:45:23,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 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 [2024-10-11 04:45:23,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:45:23,051 INFO L225 Difference]: With dead ends: 13397 [2024-10-11 04:45:23,051 INFO L226 Difference]: Without dead ends: 7091 [2024-10-11 04:45:23,060 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 [2024-10-11 04:45:23,061 INFO L432 NwaCegarLoop]: 1545 mSDtfsCounter, 37 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 3053 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:45:23,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 3053 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:45:23,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7091 states. [2024-10-11 04:45:23,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7091 to 7089. [2024-10-11 04:45:23,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7089 states, 7087 states have (on average 1.4585861436432905) internal successors, (10337), 7088 states have internal predecessors, (10337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:23,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7089 states to 7089 states and 10337 transitions. [2024-10-11 04:45:23,245 INFO L78 Accepts]: Start accepts. Automaton has 7089 states and 10337 transitions. Word has length 62 [2024-10-11 04:45:23,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:45:23,246 INFO L471 AbstractCegarLoop]: Abstraction has 7089 states and 10337 transitions. [2024-10-11 04:45:23,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 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) [2024-10-11 04:45:23,246 INFO L276 IsEmpty]: Start isEmpty. Operand 7089 states and 10337 transitions. [2024-10-11 04:45:23,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-11 04:45:23,247 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:45:23,247 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] [2024-10-11 04:45:23,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 04:45:23,247 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:45:23,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:45:23,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1794718171, now seen corresponding path program 1 times [2024-10-11 04:45:23,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:45:23,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773122156] [2024-10-11 04:45:23,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:45:23,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:45:23,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:45:23,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:45:23,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:45:23,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773122156] [2024-10-11 04:45:23,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773122156] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:45:23,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:45:23,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 04:45:23,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327964090] [2024-10-11 04:45:23,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:45:23,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:45:23,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:45:23,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:45:23,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:45:23,309 INFO L87 Difference]: Start difference. First operand 7089 states and 10337 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 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) [2024-10-11 04:45:26,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:45:26,477 INFO L93 Difference]: Finished difference Result 8593 states and 13210 transitions. [2024-10-11 04:45:26,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:45:26,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 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 [2024-10-11 04:45:26,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:45:26,493 INFO L225 Difference]: With dead ends: 8593 [2024-10-11 04:45:26,494 INFO L226 Difference]: Without dead ends: 7840 [2024-10-11 04:45:26,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:45:26,500 INFO L432 NwaCegarLoop]: 548 mSDtfsCounter, 822 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 822 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 2916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:45:26,500 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [822 Valid, 555 Invalid, 2916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-10-11 04:45:26,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7840 states. [2024-10-11 04:45:26,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7840 to 7840. [2024-10-11 04:45:26,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7840 states, 7838 states have (on average 1.443735646848686) internal successors, (11316), 7839 states have internal predecessors, (11316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:26,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7840 states to 7840 states and 11316 transitions. [2024-10-11 04:45:26,686 INFO L78 Accepts]: Start accepts. Automaton has 7840 states and 11316 transitions. Word has length 62 [2024-10-11 04:45:26,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:45:26,686 INFO L471 AbstractCegarLoop]: Abstraction has 7840 states and 11316 transitions. [2024-10-11 04:45:26,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 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) [2024-10-11 04:45:26,686 INFO L276 IsEmpty]: Start isEmpty. Operand 7840 states and 11316 transitions. [2024-10-11 04:45:26,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-11 04:45:26,688 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:45:26,688 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:45:26,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 04:45:26,688 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:45:26,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:45:26,689 INFO L85 PathProgramCache]: Analyzing trace with hash 558947071, now seen corresponding path program 1 times [2024-10-11 04:45:26,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:45:26,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966506012] [2024-10-11 04:45:26,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:45:26,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:45:26,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:45:26,801 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:45:26,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:45:26,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966506012] [2024-10-11 04:45:26,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966506012] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:45:26,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:45:26,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:45:26,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536318648] [2024-10-11 04:45:26,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:45:26,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:45:26,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:45:26,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:45:26,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:45:26,803 INFO L87 Difference]: Start difference. First operand 7840 states and 11316 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:26,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:45:26,880 INFO L93 Difference]: Finished difference Result 10236 states and 14723 transitions. [2024-10-11 04:45:26,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:45:26,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-10-11 04:45:26,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:45:26,890 INFO L225 Difference]: With dead ends: 10236 [2024-10-11 04:45:26,890 INFO L226 Difference]: Without dead ends: 3930 [2024-10-11 04:45:26,897 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 [2024-10-11 04:45:26,898 INFO L432 NwaCegarLoop]: 1543 mSDtfsCounter, 31 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 3050 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:45:26,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 3050 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:45:26,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3930 states. [2024-10-11 04:45:26,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3930 to 3923. [2024-10-11 04:45:26,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3923 states, 3921 states have (on average 1.479979597041571) internal successors, (5803), 3922 states have internal predecessors, (5803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:26,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3923 states to 3923 states and 5803 transitions. [2024-10-11 04:45:26,983 INFO L78 Accepts]: Start accepts. Automaton has 3923 states and 5803 transitions. Word has length 63 [2024-10-11 04:45:26,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:45:26,983 INFO L471 AbstractCegarLoop]: Abstraction has 3923 states and 5803 transitions. [2024-10-11 04:45:26,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:26,984 INFO L276 IsEmpty]: Start isEmpty. Operand 3923 states and 5803 transitions. [2024-10-11 04:45:26,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-11 04:45:26,985 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:45:26,985 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:45:26,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 04:45:26,985 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:45:26,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:45:26,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1485090395, now seen corresponding path program 1 times [2024-10-11 04:45:26,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:45:26,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517601863] [2024-10-11 04:45:26,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:45:26,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:45:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:45:27,068 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:45:27,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:45:27,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517601863] [2024-10-11 04:45:27,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517601863] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:45:27,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:45:27,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:45:27,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208308203] [2024-10-11 04:45:27,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:45:27,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:45:27,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:45:27,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:45:27,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:45:27,070 INFO L87 Difference]: Start difference. First operand 3923 states and 5803 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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) [2024-10-11 04:45:27,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:45:27,121 INFO L93 Difference]: Finished difference Result 5115 states and 7477 transitions. [2024-10-11 04:45:27,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:45:27,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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 [2024-10-11 04:45:27,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:45:27,127 INFO L225 Difference]: With dead ends: 5115 [2024-10-11 04:45:27,128 INFO L226 Difference]: Without dead ends: 2737 [2024-10-11 04:45:27,130 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 [2024-10-11 04:45:27,131 INFO L432 NwaCegarLoop]: 1537 mSDtfsCounter, 33 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 3029 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:45:27,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 3029 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:45:27,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2737 states. [2024-10-11 04:45:27,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2737 to 2735. [2024-10-11 04:45:27,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2735 states, 2733 states have (on average 1.5034760336626418) internal successors, (4109), 2734 states have internal predecessors, (4109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:27,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2735 states to 2735 states and 4109 transitions. [2024-10-11 04:45:27,184 INFO L78 Accepts]: Start accepts. Automaton has 2735 states and 4109 transitions. Word has length 64 [2024-10-11 04:45:27,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:45:27,184 INFO L471 AbstractCegarLoop]: Abstraction has 2735 states and 4109 transitions. [2024-10-11 04:45:27,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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) [2024-10-11 04:45:27,184 INFO L276 IsEmpty]: Start isEmpty. Operand 2735 states and 4109 transitions. [2024-10-11 04:45:27,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-11 04:45:27,185 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:45:27,185 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:45:27,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 04:45:27,186 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:45:27,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:45:27,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1800255255, now seen corresponding path program 1 times [2024-10-11 04:45:27,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:45:27,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738304592] [2024-10-11 04:45:27,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:45:27,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:45:27,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:45:27,280 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:45:27,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:45:27,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738304592] [2024-10-11 04:45:27,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738304592] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:45:27,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:45:27,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:45:27,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576479336] [2024-10-11 04:45:27,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:45:27,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:45:27,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:45:27,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:45:27,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:45:27,283 INFO L87 Difference]: Start difference. First operand 2735 states and 4109 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 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) [2024-10-11 04:45:27,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:45:27,408 INFO L93 Difference]: Finished difference Result 3333 states and 4936 transitions. [2024-10-11 04:45:27,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:45:27,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 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 [2024-10-11 04:45:27,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:45:27,413 INFO L225 Difference]: With dead ends: 3333 [2024-10-11 04:45:27,413 INFO L226 Difference]: Without dead ends: 2143 [2024-10-11 04:45:27,414 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 [2024-10-11 04:45:27,415 INFO L432 NwaCegarLoop]: 1530 mSDtfsCounter, 30 mSDsluCounter, 1484 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 3014 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:45:27,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 3014 Invalid, 10 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:45:27,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2143 states. [2024-10-11 04:45:27,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2143 to 2141. [2024-10-11 04:45:27,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2141 states, 2139 states have (on average 1.5301542776998598) internal successors, (3273), 2140 states have internal predecessors, (3273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:27,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2141 states to 2141 states and 3273 transitions. [2024-10-11 04:45:27,449 INFO L78 Accepts]: Start accepts. Automaton has 2141 states and 3273 transitions. Word has length 66 [2024-10-11 04:45:27,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:45:27,449 INFO L471 AbstractCegarLoop]: Abstraction has 2141 states and 3273 transitions. [2024-10-11 04:45:27,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 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) [2024-10-11 04:45:27,449 INFO L276 IsEmpty]: Start isEmpty. Operand 2141 states and 3273 transitions. [2024-10-11 04:45:27,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-11 04:45:27,450 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:45:27,450 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:45:27,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 04:45:27,451 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:45:27,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:45:27,451 INFO L85 PathProgramCache]: Analyzing trace with hash -200565513, now seen corresponding path program 1 times [2024-10-11 04:45:27,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:45:27,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548194840] [2024-10-11 04:45:27,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:45:27,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:45:27,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:45:27,582 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 04:45:27,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:45:27,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548194840] [2024-10-11 04:45:27,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548194840] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 04:45:27,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890168157] [2024-10-11 04:45:27,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:45:27,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:45:27,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:45:27,585 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 04:45:27,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 04:45:27,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:45:27,707 INFO L255 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-11 04:45:27,712 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 04:45:27,855 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 04:45:27,856 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 04:45:28,197 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 04:45:28,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890168157] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 04:45:28,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 04:45:28,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 4] total 8 [2024-10-11 04:45:28,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524003136] [2024-10-11 04:45:28,198 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 04:45:28,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 04:45:28,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:45:28,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 04:45:28,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:45:28,200 INFO L87 Difference]: Start difference. First operand 2141 states and 3273 transitions. Second operand has 8 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:28,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:45:28,318 INFO L93 Difference]: Finished difference Result 3569 states and 5183 transitions. [2024-10-11 04:45:28,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 04:45:28,319 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 0 states have call successors, (0), 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 [2024-10-11 04:45:28,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:45:28,325 INFO L225 Difference]: With dead ends: 3569 [2024-10-11 04:45:28,325 INFO L226 Difference]: Without dead ends: 2973 [2024-10-11 04:45:28,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=38, Unknown=0, NotChecked=0, Total=72 [2024-10-11 04:45:28,326 INFO L432 NwaCegarLoop]: 1516 mSDtfsCounter, 4454 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4454 SdHoareTripleChecker+Valid, 3217 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:45:28,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4454 Valid, 3217 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:45:28,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2973 states. [2024-10-11 04:45:28,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2973 to 2916. [2024-10-11 04:45:28,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2916 states, 2914 states have (on average 1.4567604667124228) internal successors, (4245), 2915 states have internal predecessors, (4245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:28,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2916 states to 2916 states and 4245 transitions. [2024-10-11 04:45:28,386 INFO L78 Accepts]: Start accepts. Automaton has 2916 states and 4245 transitions. Word has length 68 [2024-10-11 04:45:28,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:45:28,387 INFO L471 AbstractCegarLoop]: Abstraction has 2916 states and 4245 transitions. [2024-10-11 04:45:28,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:28,387 INFO L276 IsEmpty]: Start isEmpty. Operand 2916 states and 4245 transitions. [2024-10-11 04:45:28,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-11 04:45:28,388 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:45:28,388 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:45:28,407 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 04:45:28,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:45:28,589 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:45:28,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:45:28,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1703842709, now seen corresponding path program 1 times [2024-10-11 04:45:28,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:45:28,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975256243] [2024-10-11 04:45:28,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:45:28,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:45:28,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:45:30,772 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:45:30,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:45:30,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975256243] [2024-10-11 04:45:30,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975256243] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 04:45:30,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354291668] [2024-10-11 04:45:30,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:45:30,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:45:30,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:45:30,775 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 04:45:30,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 04:45:30,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:45:30,893 INFO L255 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-11 04:45:30,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 04:45:31,501 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:45:31,502 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 04:45:32,558 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:45:32,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354291668] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 04:45:32,558 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 04:45:32,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 13] total 32 [2024-10-11 04:45:32,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424330481] [2024-10-11 04:45:32,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 04:45:32,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-10-11 04:45:32,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:45:32,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-10-11 04:45:32,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=839, Unknown=0, NotChecked=0, Total=992 [2024-10-11 04:45:32,560 INFO L87 Difference]: Start difference. First operand 2916 states and 4245 transitions. Second operand has 32 states, 32 states have (on average 5.5625) internal successors, (178), 32 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:33,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:45:33,964 INFO L93 Difference]: Finished difference Result 5556 states and 7699 transitions. [2024-10-11 04:45:33,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-11 04:45:33,965 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 5.5625) internal successors, (178), 32 states have internal predecessors, (178), 0 states have call successors, (0), 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 69 [2024-10-11 04:45:33,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:45:33,973 INFO L225 Difference]: With dead ends: 5556 [2024-10-11 04:45:33,973 INFO L226 Difference]: Without dead ends: 4312 [2024-10-11 04:45:33,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=473, Invalid=1783, Unknown=0, NotChecked=0, Total=2256 [2024-10-11 04:45:33,976 INFO L432 NwaCegarLoop]: 1496 mSDtfsCounter, 12086 mSDsluCounter, 7920 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12086 SdHoareTripleChecker+Valid, 9416 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 04:45:33,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12086 Valid, 9416 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 04:45:33,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4312 states. [2024-10-11 04:45:34,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4312 to 4266. [2024-10-11 04:45:34,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4266 states, 4264 states have (on average 1.3951688555347093) internal successors, (5949), 4265 states have internal predecessors, (5949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:34,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4266 states to 4266 states and 5949 transitions. [2024-10-11 04:45:34,124 INFO L78 Accepts]: Start accepts. Automaton has 4266 states and 5949 transitions. Word has length 69 [2024-10-11 04:45:34,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:45:34,125 INFO L471 AbstractCegarLoop]: Abstraction has 4266 states and 5949 transitions. [2024-10-11 04:45:34,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 5.5625) internal successors, (178), 32 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:34,125 INFO L276 IsEmpty]: Start isEmpty. Operand 4266 states and 5949 transitions. [2024-10-11 04:45:34,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-11 04:45:34,126 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:45:34,127 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:45:34,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 04:45:34,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:45:34,328 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:45:34,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:45:34,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1884833821, now seen corresponding path program 1 times [2024-10-11 04:45:34,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:45:34,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750679113] [2024-10-11 04:45:34,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:45:34,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:45:34,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:45:35,983 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:45:35,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:45:35,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750679113] [2024-10-11 04:45:35,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750679113] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 04:45:35,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096612463] [2024-10-11 04:45:35,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:45:35,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:45:35,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:45:35,988 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 04:45:35,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 04:45:36,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:45:36,082 INFO L255 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-11 04:45:36,084 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 04:45:36,464 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:45:36,464 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 04:45:37,188 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:45:37,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096612463] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 04:45:37,188 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 04:45:37,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 28 [2024-10-11 04:45:37,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764887600] [2024-10-11 04:45:37,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 04:45:37,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-10-11 04:45:37,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:45:37,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-11 04:45:37,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=695, Unknown=0, NotChecked=0, Total=812 [2024-10-11 04:45:37,190 INFO L87 Difference]: Start difference. First operand 4266 states and 5949 transitions. Second operand has 29 states, 29 states have (on average 6.172413793103448) internal successors, (179), 28 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:38,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:45:38,615 INFO L93 Difference]: Finished difference Result 14805 states and 19480 transitions. [2024-10-11 04:45:38,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-10-11 04:45:38,619 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.172413793103448) internal successors, (179), 28 states have internal predecessors, (179), 0 states have call successors, (0), 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 69 [2024-10-11 04:45:38,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:45:38,644 INFO L225 Difference]: With dead ends: 14805 [2024-10-11 04:45:38,645 INFO L226 Difference]: Without dead ends: 12240 [2024-10-11 04:45:38,654 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 705 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=615, Invalid=2465, Unknown=0, NotChecked=0, Total=3080 [2024-10-11 04:45:38,655 INFO L432 NwaCegarLoop]: 1494 mSDtfsCounter, 15963 mSDsluCounter, 7937 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15963 SdHoareTripleChecker+Valid, 9431 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 04:45:38,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15963 Valid, 9431 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 960 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 04:45:38,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12240 states. [2024-10-11 04:45:39,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12240 to 12228. [2024-10-11 04:45:39,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12228 states, 12226 states have (on average 1.310240471127106) internal successors, (16019), 12227 states have internal predecessors, (16019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:39,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12228 states to 12228 states and 16019 transitions. [2024-10-11 04:45:39,139 INFO L78 Accepts]: Start accepts. Automaton has 12228 states and 16019 transitions. Word has length 69 [2024-10-11 04:45:39,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:45:39,139 INFO L471 AbstractCegarLoop]: Abstraction has 12228 states and 16019 transitions. [2024-10-11 04:45:39,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.172413793103448) internal successors, (179), 28 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:39,140 INFO L276 IsEmpty]: Start isEmpty. Operand 12228 states and 16019 transitions. [2024-10-11 04:45:39,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-11 04:45:39,141 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:45:39,141 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:45:39,159 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 04:45:39,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:45:39,342 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:45:39,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:45:39,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1383295715, now seen corresponding path program 1 times [2024-10-11 04:45:39,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:45:39,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088560958] [2024-10-11 04:45:39,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:45:39,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:45:39,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:45:40,262 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:45:40,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:45:40,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088560958] [2024-10-11 04:45:40,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088560958] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 04:45:40,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397276372] [2024-10-11 04:45:40,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:45:40,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:45:40,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:45:40,265 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 04:45:40,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 04:45:40,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:45:40,372 INFO L255 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 04:45:40,374 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 04:45:40,722 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:45:40,722 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 04:45:41,335 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:45:41,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1397276372] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 04:45:41,335 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 04:45:41,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 27 [2024-10-11 04:45:41,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343441316] [2024-10-11 04:45:41,336 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 04:45:41,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-11 04:45:41,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:45:41,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-11 04:45:41,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=651, Unknown=0, NotChecked=0, Total=756 [2024-10-11 04:45:41,337 INFO L87 Difference]: Start difference. First operand 12228 states and 16019 transitions. Second operand has 28 states, 28 states have (on average 6.607142857142857) internal successors, (185), 27 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:42,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:45:42,956 INFO L93 Difference]: Finished difference Result 33653 states and 43469 transitions. [2024-10-11 04:45:42,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-10-11 04:45:42,956 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.607142857142857) internal successors, (185), 27 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-10-11 04:45:42,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:45:42,998 INFO L225 Difference]: With dead ends: 33653 [2024-10-11 04:45:42,999 INFO L226 Difference]: Without dead ends: 24498 [2024-10-11 04:45:43,016 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 789 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=714, Invalid=2708, Unknown=0, NotChecked=0, Total=3422 [2024-10-11 04:45:43,017 INFO L432 NwaCegarLoop]: 1515 mSDtfsCounter, 21591 mSDsluCounter, 6528 mSDsCounter, 0 mSdLazyCounter, 1200 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21591 SdHoareTripleChecker+Valid, 8043 SdHoareTripleChecker+Invalid, 1222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 04:45:43,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21591 Valid, 8043 Invalid, 1222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1200 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 04:45:43,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24498 states. [2024-10-11 04:45:43,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24498 to 23298. [2024-10-11 04:45:43,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23298 states, 23296 states have (on average 1.275154532967033) internal successors, (29706), 23297 states have internal predecessors, (29706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:43,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23298 states to 23298 states and 29706 transitions. [2024-10-11 04:45:43,586 INFO L78 Accepts]: Start accepts. Automaton has 23298 states and 29706 transitions. Word has length 69 [2024-10-11 04:45:43,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:45:43,586 INFO L471 AbstractCegarLoop]: Abstraction has 23298 states and 29706 transitions. [2024-10-11 04:45:43,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.607142857142857) internal successors, (185), 27 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:45:43,586 INFO L276 IsEmpty]: Start isEmpty. Operand 23298 states and 29706 transitions. [2024-10-11 04:45:43,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-11 04:45:43,588 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:45:43,589 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:45:43,603 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 04:45:43,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-10-11 04:45:43,789 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:45:43,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:45:43,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1292347099, now seen corresponding path program 1 times [2024-10-11 04:45:43,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:45:43,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156600559] [2024-10-11 04:45:43,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:45:43,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:45:43,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:45:44,286 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:45:44,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:45:44,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156600559] [2024-10-11 04:45:44,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156600559] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 04:45:44,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807437017] [2024-10-11 04:45:44,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:45:44,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:45:44,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:45:44,289 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 04:45:44,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 04:45:44,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:45:44,412 INFO L255 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-10-11 04:45:44,415 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 04:45:46,630 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:45:46,630 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 04:45:49,419 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:45:49,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807437017] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 04:45:49,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 04:45:49,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 21, 21] total 49 [2024-10-11 04:45:49,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170724414] [2024-10-11 04:45:49,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 04:45:49,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-10-11 04:45:49,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:45:49,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-10-11 04:45:49,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=317, Invalid=2035, Unknown=0, NotChecked=0, Total=2352 [2024-10-11 04:45:49,422 INFO L87 Difference]: Start difference. First operand 23298 states and 29706 transitions. Second operand has 49 states, 49 states have (on average 4.040816326530612) internal successors, (198), 49 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:46:21,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:46:21,472 INFO L93 Difference]: Finished difference Result 70521 states and 90908 transitions. [2024-10-11 04:46:21,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 160 states. [2024-10-11 04:46:21,473 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 4.040816326530612) internal successors, (198), 49 states have internal predecessors, (198), 0 states have call successors, (0), 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 70 [2024-10-11 04:46:21,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:46:21,559 INFO L225 Difference]: With dead ends: 70521 [2024-10-11 04:46:21,559 INFO L226 Difference]: Without dead ends: 51925 [2024-10-11 04:46:21,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 205 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16715 ImplicationChecksByTransitivity, 30.0s TimeCoverageRelationStatistics Valid=8336, Invalid=34306, Unknown=0, NotChecked=0, Total=42642 [2024-10-11 04:46:21,600 INFO L432 NwaCegarLoop]: 1555 mSDtfsCounter, 32929 mSDsluCounter, 17796 mSDsCounter, 0 mSdLazyCounter, 2715 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32929 SdHoareTripleChecker+Valid, 19351 SdHoareTripleChecker+Invalid, 2857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 2715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-11 04:46:21,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32929 Valid, 19351 Invalid, 2857 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [142 Valid, 2715 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-11 04:46:21,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51925 states. [2024-10-11 04:46:22,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51925 to 21128. [2024-10-11 04:46:22,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21128 states, 21126 states have (on average 1.2634194831013916) internal successors, (26691), 21127 states have internal predecessors, (26691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:46:22,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21128 states to 21128 states and 26691 transitions. [2024-10-11 04:46:22,630 INFO L78 Accepts]: Start accepts. Automaton has 21128 states and 26691 transitions. Word has length 70 [2024-10-11 04:46:22,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:46:22,630 INFO L471 AbstractCegarLoop]: Abstraction has 21128 states and 26691 transitions. [2024-10-11 04:46:22,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 4.040816326530612) internal successors, (198), 49 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:46:22,630 INFO L276 IsEmpty]: Start isEmpty. Operand 21128 states and 26691 transitions. [2024-10-11 04:46:22,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-11 04:46:22,632 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:46:22,632 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:46:22,651 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-11 04:46:22,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-10-11 04:46:22,837 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:46:22,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:46:22,837 INFO L85 PathProgramCache]: Analyzing trace with hash -993642665, now seen corresponding path program 1 times [2024-10-11 04:46:22,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:46:22,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461448412] [2024-10-11 04:46:22,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:46:22,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:46:22,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat