./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/bist_cell.cil.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/systemc/bist_cell.cil.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 de455e90ef2ae1a82fb7a87bbcdb07831c7ef68e47976e1b2868a3e9de47a0a2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 03:11:48,504 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 03:11:48,558 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 03:11:48,563 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 03:11:48,564 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 03:11:48,595 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 03:11:48,595 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 03:11:48,596 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 03:11:48,596 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 03:11:48,596 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 03:11:48,597 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 03:11:48,597 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 03:11:48,598 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 03:11:48,599 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 03:11:48,599 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 03:11:48,601 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 03:11:48,602 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 03:11:48,602 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 03:11:48,602 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 03:11:48,602 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 03:11:48,603 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 03:11:48,606 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 03:11:48,606 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 03:11:48,607 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 03:11:48,607 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 03:11:48,607 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 03:11:48,607 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 03:11:48,608 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 03:11:48,608 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 03:11:48,608 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 03:11:48,608 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 03:11:48,609 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 03:11:48,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:11:48,609 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 03:11:48,609 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 03:11:48,609 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 03:11:48,610 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 03:11:48,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 03:11:48,612 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 03:11:48,612 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 03:11:48,613 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 03:11:48,613 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 03:11:48,613 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de455e90ef2ae1a82fb7a87bbcdb07831c7ef68e47976e1b2868a3e9de47a0a2 [2024-10-11 03:11:48,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 03:11:48,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 03:11:48,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 03:11:48,879 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 03:11:48,879 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 03:11:48,880 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/bist_cell.cil.c [2024-10-11 03:11:50,265 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 03:11:50,489 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 03:11:50,490 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/bist_cell.cil.c [2024-10-11 03:11:50,517 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/c4c477285/0456586cb72048a393dcc0ebd2c3717d/FLAG571ec0109 [2024-10-11 03:11:50,530 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/c4c477285/0456586cb72048a393dcc0ebd2c3717d [2024-10-11 03:11:50,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 03:11:50,534 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 03:11:50,535 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 03:11:50,535 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 03:11:50,539 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 03:11:50,540 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:11:50" (1/1) ... [2024-10-11 03:11:50,541 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@198b4ae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:50, skipping insertion in model container [2024-10-11 03:11:50,541 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:11:50" (1/1) ... [2024-10-11 03:11:50,580 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 03:11:50,751 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/systemc/bist_cell.cil.c[639,652] [2024-10-11 03:11:50,824 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:11:50,841 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 03:11:50,854 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/systemc/bist_cell.cil.c[639,652] [2024-10-11 03:11:50,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:11:50,903 INFO L204 MainTranslator]: Completed translation [2024-10-11 03:11:50,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:50 WrapperNode [2024-10-11 03:11:50,903 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 03:11:50,904 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 03:11:50,904 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 03:11:50,905 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 03:11:50,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:50" (1/1) ... [2024-10-11 03:11:50,917 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:50" (1/1) ... [2024-10-11 03:11:50,936 INFO L138 Inliner]: procedures = 30, calls = 30, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 229 [2024-10-11 03:11:50,936 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 03:11:50,937 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 03:11:50,937 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 03:11:50,937 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 03:11:50,946 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:50" (1/1) ... [2024-10-11 03:11:50,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:50" (1/1) ... [2024-10-11 03:11:50,948 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:50" (1/1) ... [2024-10-11 03:11:50,960 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 03:11:50,960 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:50" (1/1) ... [2024-10-11 03:11:50,961 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:50" (1/1) ... [2024-10-11 03:11:50,970 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:50" (1/1) ... [2024-10-11 03:11:50,974 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:50" (1/1) ... [2024-10-11 03:11:50,976 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:50" (1/1) ... [2024-10-11 03:11:50,981 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:50" (1/1) ... [2024-10-11 03:11:50,983 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 03:11:50,984 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 03:11:50,984 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 03:11:50,984 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 03:11:50,985 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:50" (1/1) ... [2024-10-11 03:11:50,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:11:51,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:11:51,018 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 03:11:51,021 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 03:11:51,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 03:11:51,067 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-11 03:11:51,068 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-11 03:11:51,068 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-11 03:11:51,068 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-11 03:11:51,069 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-11 03:11:51,069 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-11 03:11:51,069 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-11 03:11:51,070 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-11 03:11:51,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 03:11:51,071 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-11 03:11:51,071 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-11 03:11:51,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 03:11:51,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 03:11:51,153 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 03:11:51,157 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 03:11:51,455 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-10-11 03:11:51,455 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 03:11:51,496 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 03:11:51,496 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 03:11:51,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:11:51 BoogieIcfgContainer [2024-10-11 03:11:51,497 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 03:11:51,502 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 03:11:51,502 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 03:11:51,507 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 03:11:51,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:11:50" (1/3) ... [2024-10-11 03:11:51,508 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db358b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:11:51, skipping insertion in model container [2024-10-11 03:11:51,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:50" (2/3) ... [2024-10-11 03:11:51,509 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db358b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:11:51, skipping insertion in model container [2024-10-11 03:11:51,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:11:51" (3/3) ... [2024-10-11 03:11:51,511 INFO L112 eAbstractionObserver]: Analyzing ICFG bist_cell.cil.c [2024-10-11 03:11:51,526 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 03:11:51,527 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 03:11:51,585 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 03:11:51,590 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;@612f22d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 03:11:51,591 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 03:11:51,594 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 71 states have (on average 1.676056338028169) internal successors, (119), 73 states have internal predecessors, (119), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-11 03:11:51,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-11 03:11:51,601 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:11:51,601 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:11:51,601 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:11:51,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:11:51,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1929751186, now seen corresponding path program 1 times [2024-10-11 03:11:51,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:11:51,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73929393] [2024-10-11 03:11:51,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:11:51,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:11:51,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:51,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:11:52,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:52,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-11 03:11:52,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:52,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 03:11:52,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:52,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-11 03:11:52,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:52,166 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 03:11:52,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:11:52,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73929393] [2024-10-11 03:11:52,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73929393] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:11:52,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:11:52,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 03:11:52,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955020785] [2024-10-11 03:11:52,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:11:52,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 03:11:52,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:11:52,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 03:11:52,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-11 03:11:52,204 INFO L87 Difference]: Start difference. First operand has 88 states, 71 states have (on average 1.676056338028169) internal successors, (119), 73 states have internal predecessors, (119), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 03:11:53,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:11:53,173 INFO L93 Difference]: Finished difference Result 246 states and 393 transitions. [2024-10-11 03:11:53,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 03:11:53,175 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2024-10-11 03:11:53,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:11:53,184 INFO L225 Difference]: With dead ends: 246 [2024-10-11 03:11:53,185 INFO L226 Difference]: Without dead ends: 158 [2024-10-11 03:11:53,190 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2024-10-11 03:11:53,194 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 264 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 03:11:53,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 295 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 03:11:53,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-10-11 03:11:53,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 101. [2024-10-11 03:11:53,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 84 states have (on average 1.5952380952380953) internal successors, (134), 85 states have internal predecessors, (134), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-10-11 03:11:53,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 155 transitions. [2024-10-11 03:11:53,250 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 155 transitions. Word has length 39 [2024-10-11 03:11:53,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:11:53,250 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 155 transitions. [2024-10-11 03:11:53,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 03:11:53,251 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 155 transitions. [2024-10-11 03:11:53,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-11 03:11:53,254 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:11:53,254 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:11:53,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 03:11:53,255 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:11:53,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:11:53,255 INFO L85 PathProgramCache]: Analyzing trace with hash -609134686, now seen corresponding path program 1 times [2024-10-11 03:11:53,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:11:53,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323347677] [2024-10-11 03:11:53,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:11:53,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:11:53,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:53,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:11:53,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:53,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 03:11:53,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:53,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 03:11:53,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:53,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 03:11:53,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:53,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 03:11:53,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:53,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-11 03:11:53,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:53,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 03:11:53,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:53,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 03:11:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:53,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 03:11:53,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:53,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 03:11:53,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:53,538 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-11 03:11:53,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:11:53,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323347677] [2024-10-11 03:11:53,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323347677] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:11:53,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914528408] [2024-10-11 03:11:53,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:11:53,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:11:53,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:11:53,542 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 03:11:53,543 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 03:11:53,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:53,672 INFO L255 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 03:11:53,678 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:11:53,742 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-11 03:11:53,742 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:11:53,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914528408] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:11:53,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:11:53,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 9 [2024-10-11 03:11:53,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906292993] [2024-10-11 03:11:53,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:11:53,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:11:53,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:11:53,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:11:53,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:11:53,749 INFO L87 Difference]: Start difference. First operand 101 states and 155 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 03:11:53,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:11:53,782 INFO L93 Difference]: Finished difference Result 194 states and 298 transitions. [2024-10-11 03:11:53,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:11:53,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 92 [2024-10-11 03:11:53,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:11:53,785 INFO L225 Difference]: With dead ends: 194 [2024-10-11 03:11:53,785 INFO L226 Difference]: Without dead ends: 101 [2024-10-11 03:11:53,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:11:53,787 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 119 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:11:53,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 119 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:11:53,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-10-11 03:11:53,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-10-11 03:11:53,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 84 states have (on average 1.5833333333333333) internal successors, (133), 85 states have internal predecessors, (133), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-10-11 03:11:53,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 154 transitions. [2024-10-11 03:11:53,810 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 154 transitions. Word has length 92 [2024-10-11 03:11:53,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:11:53,811 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 154 transitions. [2024-10-11 03:11:53,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 03:11:53,811 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 154 transitions. [2024-10-11 03:11:53,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-11 03:11:53,813 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:11:53,813 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:11:53,831 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 03:11:54,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:11:54,015 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:11:54,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:11:54,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1751637152, now seen corresponding path program 1 times [2024-10-11 03:11:54,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:11:54,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295614432] [2024-10-11 03:11:54,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:11:54,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:11:54,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:54,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:11:54,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:54,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 03:11:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:54,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 03:11:54,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:54,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 03:11:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:54,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 03:11:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:54,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-11 03:11:54,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:54,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 03:11:54,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:54,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 03:11:54,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:54,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 03:11:54,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:54,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 03:11:54,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:54,219 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-11 03:11:54,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:11:54,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295614432] [2024-10-11 03:11:54,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295614432] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:11:54,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815065628] [2024-10-11 03:11:54,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:11:54,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:11:54,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:11:54,224 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 03:11:54,226 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 03:11:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:54,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 03:11:54,334 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:11:54,420 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-11 03:11:54,420 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:11:54,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815065628] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:11:54,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:11:54,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-10-11 03:11:54,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878440510] [2024-10-11 03:11:54,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:11:54,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:11:54,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:11:54,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:11:54,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:11:54,423 INFO L87 Difference]: Start difference. First operand 101 states and 154 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 03:11:54,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:11:54,619 INFO L93 Difference]: Finished difference Result 302 states and 471 transitions. [2024-10-11 03:11:54,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:11:54,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 92 [2024-10-11 03:11:54,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:11:54,622 INFO L225 Difference]: With dead ends: 302 [2024-10-11 03:11:54,622 INFO L226 Difference]: Without dead ends: 211 [2024-10-11 03:11:54,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:11:54,627 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 218 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:11:54,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 324 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:11:54,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-10-11 03:11:54,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 198. [2024-10-11 03:11:54,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 165 states have (on average 1.5757575757575757) internal successors, (260), 168 states have internal predecessors, (260), 19 states have call successors, (19), 11 states have call predecessors, (19), 13 states have return successors, (27), 20 states have call predecessors, (27), 19 states have call successors, (27) [2024-10-11 03:11:54,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 306 transitions. [2024-10-11 03:11:54,673 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 306 transitions. Word has length 92 [2024-10-11 03:11:54,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:11:54,675 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 306 transitions. [2024-10-11 03:11:54,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 03:11:54,675 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 306 transitions. [2024-10-11 03:11:54,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-11 03:11:54,681 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:11:54,681 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:11:54,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-11 03:11:54,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:11:54,882 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:11:54,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:11:54,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1617302816, now seen corresponding path program 1 times [2024-10-11 03:11:54,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:11:54,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379430392] [2024-10-11 03:11:54,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:11:54,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:11:54,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:54,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:11:54,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:55,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 03:11:55,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:55,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 03:11:55,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:55,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 03:11:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:55,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 03:11:55,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:55,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-11 03:11:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:55,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 03:11:55,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:55,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 03:11:55,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:55,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 03:11:55,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:55,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 03:11:55,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:55,048 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-11 03:11:55,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:11:55,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379430392] [2024-10-11 03:11:55,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379430392] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:11:55,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269065424] [2024-10-11 03:11:55,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:11:55,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:11:55,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:11:55,054 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 03:11:55,055 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 03:11:55,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:55,161 INFO L255 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 03:11:55,164 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:11:55,244 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-11 03:11:55,245 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:11:55,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [269065424] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:11:55,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:11:55,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-10-11 03:11:55,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369514247] [2024-10-11 03:11:55,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:11:55,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:11:55,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:11:55,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:11:55,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:11:55,249 INFO L87 Difference]: Start difference. First operand 198 states and 306 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 03:11:55,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:11:55,465 INFO L93 Difference]: Finished difference Result 593 states and 936 transitions. [2024-10-11 03:11:55,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:11:55,466 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 92 [2024-10-11 03:11:55,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:11:55,472 INFO L225 Difference]: With dead ends: 593 [2024-10-11 03:11:55,473 INFO L226 Difference]: Without dead ends: 409 [2024-10-11 03:11:55,474 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:11:55,477 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 215 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:11:55,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 314 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:11:55,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-10-11 03:11:55,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 395. [2024-10-11 03:11:55,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 328 states have (on average 1.5609756097560976) internal successors, (512), 337 states have internal predecessors, (512), 37 states have call successors, (37), 21 states have call predecessors, (37), 29 states have return successors, (71), 40 states have call predecessors, (71), 37 states have call successors, (71) [2024-10-11 03:11:55,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 620 transitions. [2024-10-11 03:11:55,539 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 620 transitions. Word has length 92 [2024-10-11 03:11:55,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:11:55,540 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 620 transitions. [2024-10-11 03:11:55,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 03:11:55,541 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 620 transitions. [2024-10-11 03:11:55,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-11 03:11:55,547 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:11:55,547 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:11:55,565 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 03:11:55,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:11:55,748 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:11:55,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:11:55,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1468221796, now seen corresponding path program 1 times [2024-10-11 03:11:55,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:11:55,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174407900] [2024-10-11 03:11:55,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:11:55,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:11:55,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:55,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:11:55,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:55,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 03:11:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:55,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 03:11:55,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:55,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 03:11:55,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:55,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 03:11:55,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:55,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-11 03:11:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:55,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 03:11:55,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:55,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 03:11:55,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:55,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 03:11:55,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:55,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 03:11:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:55,927 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-11 03:11:55,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:11:55,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174407900] [2024-10-11 03:11:55,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174407900] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:11:55,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138195179] [2024-10-11 03:11:55,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:11:55,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:11:55,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:11:55,931 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 03:11:55,932 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 03:11:56,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:56,035 INFO L255 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 03:11:56,037 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:11:56,105 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-11 03:11:56,105 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:11:56,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138195179] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:11:56,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:11:56,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-10-11 03:11:56,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464986277] [2024-10-11 03:11:56,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:11:56,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:11:56,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:11:56,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:11:56,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:11:56,108 INFO L87 Difference]: Start difference. First operand 395 states and 620 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 03:11:56,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:11:56,345 INFO L93 Difference]: Finished difference Result 1308 states and 2136 transitions. [2024-10-11 03:11:56,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:11:56,346 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 92 [2024-10-11 03:11:56,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:11:56,351 INFO L225 Difference]: With dead ends: 1308 [2024-10-11 03:11:56,351 INFO L226 Difference]: Without dead ends: 935 [2024-10-11 03:11:56,353 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:11:56,354 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 233 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:11:56,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 353 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:11:56,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2024-10-11 03:11:56,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 863. [2024-10-11 03:11:56,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 722 states have (on average 1.5401662049861495) internal successors, (1112), 749 states have internal predecessors, (1112), 73 states have call successors, (73), 41 states have call predecessors, (73), 67 states have return successors, (201), 80 states have call predecessors, (201), 73 states have call successors, (201) [2024-10-11 03:11:56,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1386 transitions. [2024-10-11 03:11:56,442 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1386 transitions. Word has length 92 [2024-10-11 03:11:56,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:11:56,442 INFO L471 AbstractCegarLoop]: Abstraction has 863 states and 1386 transitions. [2024-10-11 03:11:56,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 03:11:56,443 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1386 transitions. [2024-10-11 03:11:56,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-11 03:11:56,446 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:11:56,447 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:11:56,465 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 03:11:56,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:11:56,652 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:11:56,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:11:56,652 INFO L85 PathProgramCache]: Analyzing trace with hash -2131635018, now seen corresponding path program 1 times [2024-10-11 03:11:56,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:11:56,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073760706] [2024-10-11 03:11:56,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:11:56,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:11:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:56,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:11:56,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:56,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 03:11:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:56,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 03:11:56,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:56,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-11 03:11:56,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:56,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 03:11:56,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:56,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 03:11:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:56,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 03:11:56,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:56,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 03:11:56,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:56,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 03:11:56,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:56,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 03:11:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:56,835 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-11 03:11:56,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:11:56,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073760706] [2024-10-11 03:11:56,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073760706] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:11:56,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308171948] [2024-10-11 03:11:56,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:11:56,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:11:56,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:11:56,837 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 03:11:56,839 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 03:11:56,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:56,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 03:11:56,931 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:11:57,003 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-11 03:11:57,003 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:11:57,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1308171948] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:11:57,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:11:57,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-10-11 03:11:57,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763355849] [2024-10-11 03:11:57,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:11:57,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:11:57,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:11:57,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:11:57,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:11:57,006 INFO L87 Difference]: Start difference. First operand 863 states and 1386 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 03:11:57,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:11:57,326 INFO L93 Difference]: Finished difference Result 2816 states and 4760 transitions. [2024-10-11 03:11:57,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:11:57,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 94 [2024-10-11 03:11:57,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:11:57,337 INFO L225 Difference]: With dead ends: 2816 [2024-10-11 03:11:57,337 INFO L226 Difference]: Without dead ends: 1993 [2024-10-11 03:11:57,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:11:57,340 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 223 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:11:57,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 334 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:11:57,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1993 states. [2024-10-11 03:11:57,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1993 to 1885. [2024-10-11 03:11:57,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1885 states, 1578 states have (on average 1.5158428390367553) internal successors, (2392), 1659 states have internal predecessors, (2392), 145 states have call successors, (145), 81 states have call predecessors, (145), 161 states have return successors, (611), 160 states have call predecessors, (611), 145 states have call successors, (611) [2024-10-11 03:11:57,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1885 states to 1885 states and 3148 transitions. [2024-10-11 03:11:57,530 INFO L78 Accepts]: Start accepts. Automaton has 1885 states and 3148 transitions. Word has length 94 [2024-10-11 03:11:57,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:11:57,530 INFO L471 AbstractCegarLoop]: Abstraction has 1885 states and 3148 transitions. [2024-10-11 03:11:57,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 03:11:57,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1885 states and 3148 transitions. [2024-10-11 03:11:57,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-11 03:11:57,539 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:11:57,540 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:11:57,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-11 03:11:57,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:11:57,741 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:11:57,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:11:57,741 INFO L85 PathProgramCache]: Analyzing trace with hash -86155466, now seen corresponding path program 1 times [2024-10-11 03:11:57,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:11:57,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613584705] [2024-10-11 03:11:57,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:11:57,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:11:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:57,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:11:57,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:57,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 03:11:57,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:57,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 03:11:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:57,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-11 03:11:57,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:57,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 03:11:57,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:57,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 03:11:57,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:57,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 03:11:57,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:57,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 03:11:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:57,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 03:11:57,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:57,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 03:11:57,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:57,884 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-11 03:11:57,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:11:57,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613584705] [2024-10-11 03:11:57,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613584705] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:11:57,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842156326] [2024-10-11 03:11:57,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:11:57,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:11:57,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:11:57,887 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:11:57,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 03:11:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:57,974 INFO L255 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 03:11:57,977 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:11:58,025 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:11:58,025 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:11:58,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842156326] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:11:58,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:11:58,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-10-11 03:11:58,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45886590] [2024-10-11 03:11:58,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:11:58,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 03:11:58,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:11:58,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 03:11:58,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-10-11 03:11:58,030 INFO L87 Difference]: Start difference. First operand 1885 states and 3148 transitions. Second operand has 6 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 03:11:58,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:11:58,206 INFO L93 Difference]: Finished difference Result 3730 states and 6157 transitions. [2024-10-11 03:11:58,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:11:58,207 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 94 [2024-10-11 03:11:58,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:11:58,218 INFO L225 Difference]: With dead ends: 3730 [2024-10-11 03:11:58,219 INFO L226 Difference]: Without dead ends: 1949 [2024-10-11 03:11:58,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-10-11 03:11:58,226 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:11:58,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 584 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:11:58,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1949 states. [2024-10-11 03:11:58,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1949 to 1949. [2024-10-11 03:11:58,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1949 states, 1626 states have (on average 1.5006150061500616) internal successors, (2440), 1707 states have internal predecessors, (2440), 145 states have call successors, (145), 81 states have call predecessors, (145), 177 states have return successors, (643), 176 states have call predecessors, (643), 145 states have call successors, (643) [2024-10-11 03:11:58,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1949 states to 1949 states and 3228 transitions. [2024-10-11 03:11:58,412 INFO L78 Accepts]: Start accepts. Automaton has 1949 states and 3228 transitions. Word has length 94 [2024-10-11 03:11:58,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:11:58,413 INFO L471 AbstractCegarLoop]: Abstraction has 1949 states and 3228 transitions. [2024-10-11 03:11:58,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 03:11:58,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1949 states and 3228 transitions. [2024-10-11 03:11:58,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-11 03:11:58,422 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:11:58,422 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:11:58,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-11 03:11:58,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-10-11 03:11:58,624 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:11:58,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:11:58,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1452184564, now seen corresponding path program 1 times [2024-10-11 03:11:58,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:11:58,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823747487] [2024-10-11 03:11:58,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:11:58,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:11:58,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:58,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:11:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:58,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 03:11:58,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:58,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 03:11:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:58,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-11 03:11:58,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:58,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 03:11:58,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:58,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 03:11:58,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:58,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 03:11:58,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:58,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 03:11:58,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:58,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 03:11:58,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:58,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 03:11:58,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:58,769 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-11 03:11:58,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:11:58,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823747487] [2024-10-11 03:11:58,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823747487] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:11:58,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631200350] [2024-10-11 03:11:58,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:11:58,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:11:58,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:11:58,772 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 03:11:58,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 03:11:58,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:58,864 INFO L255 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 03:11:58,866 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:11:58,892 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 03:11:58,893 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:11:58,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631200350] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:11:58,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:11:58,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-10-11 03:11:58,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27344588] [2024-10-11 03:11:58,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:11:58,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:11:58,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:11:58,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:11:58,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:11:58,895 INFO L87 Difference]: Start difference. First operand 1949 states and 3228 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 03:11:59,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:11:59,081 INFO L93 Difference]: Finished difference Result 4258 states and 7036 transitions. [2024-10-11 03:11:59,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:11:59,081 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 94 [2024-10-11 03:11:59,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:11:59,094 INFO L225 Difference]: With dead ends: 4258 [2024-10-11 03:11:59,094 INFO L226 Difference]: Without dead ends: 2413 [2024-10-11 03:11:59,100 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:11:59,101 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 56 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:11:59,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 228 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:11:59,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2413 states. [2024-10-11 03:11:59,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2413 to 2233. [2024-10-11 03:11:59,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2233 states, 1814 states have (on average 1.456449834619625) internal successors, (2642), 1895 states have internal predecessors, (2642), 209 states have call successors, (209), 113 states have call predecessors, (209), 209 states have return successors, (788), 256 states have call predecessors, (788), 209 states have call successors, (788) [2024-10-11 03:11:59,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2233 states to 2233 states and 3639 transitions. [2024-10-11 03:11:59,325 INFO L78 Accepts]: Start accepts. Automaton has 2233 states and 3639 transitions. Word has length 94 [2024-10-11 03:11:59,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:11:59,326 INFO L471 AbstractCegarLoop]: Abstraction has 2233 states and 3639 transitions. [2024-10-11 03:11:59,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 03:11:59,326 INFO L276 IsEmpty]: Start isEmpty. Operand 2233 states and 3639 transitions. [2024-10-11 03:11:59,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-11 03:11:59,336 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:11:59,336 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:11:59,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-11 03:11:59,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:11:59,541 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:11:59,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:11:59,541 INFO L85 PathProgramCache]: Analyzing trace with hash 236030838, now seen corresponding path program 1 times [2024-10-11 03:11:59,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:11:59,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324298876] [2024-10-11 03:11:59,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:11:59,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:11:59,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:59,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:11:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:59,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 03:11:59,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:59,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 03:11:59,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:59,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-11 03:11:59,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:59,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 03:11:59,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:59,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 03:11:59,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:59,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 03:11:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:59,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 03:11:59,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:59,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 03:11:59,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:59,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 03:11:59,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:59,691 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-11 03:11:59,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:11:59,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324298876] [2024-10-11 03:11:59,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324298876] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:11:59,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985710952] [2024-10-11 03:11:59,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:11:59,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:11:59,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:11:59,693 INFO L229 MonitoredProcess]: Starting monitored process 9 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 03:11:59,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 03:11:59,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:11:59,779 INFO L255 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 03:11:59,781 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:11:59,801 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-11 03:11:59,801 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:11:59,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985710952] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:11:59,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:11:59,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2024-10-11 03:11:59,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642544858] [2024-10-11 03:11:59,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:11:59,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 03:11:59,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:11:59,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 03:11:59,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-11 03:11:59,803 INFO L87 Difference]: Start difference. First operand 2233 states and 3639 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 03:11:59,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:11:59,967 INFO L93 Difference]: Finished difference Result 4302 states and 7001 transitions. [2024-10-11 03:11:59,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 03:11:59,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 94 [2024-10-11 03:11:59,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:11:59,982 INFO L225 Difference]: With dead ends: 4302 [2024-10-11 03:11:59,982 INFO L226 Difference]: Without dead ends: 2265 [2024-10-11 03:11:59,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-11 03:11:59,989 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:11:59,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 349 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:11:59,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2265 states. [2024-10-11 03:12:00,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2265 to 2265. [2024-10-11 03:12:00,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2265 states, 1846 states have (on average 1.448537378114843) internal successors, (2674), 1927 states have internal predecessors, (2674), 209 states have call successors, (209), 113 states have call predecessors, (209), 209 states have return successors, (788), 256 states have call predecessors, (788), 209 states have call successors, (788) [2024-10-11 03:12:00,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2265 states to 2265 states and 3671 transitions. [2024-10-11 03:12:00,182 INFO L78 Accepts]: Start accepts. Automaton has 2265 states and 3671 transitions. Word has length 94 [2024-10-11 03:12:00,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:00,183 INFO L471 AbstractCegarLoop]: Abstraction has 2265 states and 3671 transitions. [2024-10-11 03:12:00,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 03:12:00,183 INFO L276 IsEmpty]: Start isEmpty. Operand 2265 states and 3671 transitions. [2024-10-11 03:12:00,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-11 03:12:00,192 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:00,192 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:12:00,211 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-11 03:12:00,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:00,394 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:00,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:00,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1971241955, now seen corresponding path program 1 times [2024-10-11 03:12:00,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:00,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612470595] [2024-10-11 03:12:00,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:00,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:00,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:00,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:12:00,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:00,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 03:12:00,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:00,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 03:12:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:00,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 03:12:00,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:00,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 03:12:00,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:00,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 03:12:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:00,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 03:12:00,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:00,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 03:12:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:00,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 03:12:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:00,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 03:12:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:00,543 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-11 03:12:00,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:00,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612470595] [2024-10-11 03:12:00,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612470595] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:12:00,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522948231] [2024-10-11 03:12:00,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:00,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:00,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:12:00,545 INFO L229 MonitoredProcess]: Starting monitored process 10 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 03:12:00,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-11 03:12:00,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:00,636 INFO L255 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 03:12:00,637 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:12:00,663 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-11 03:12:00,663 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:12:00,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522948231] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:00,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:12:00,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-10-11 03:12:00,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333798631] [2024-10-11 03:12:00,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:00,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:12:00,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:00,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:12:00,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:12:00,666 INFO L87 Difference]: Start difference. First operand 2265 states and 3671 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 03:12:00,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:00,863 INFO L93 Difference]: Finished difference Result 4634 states and 7890 transitions. [2024-10-11 03:12:00,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:12:00,864 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), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 96 [2024-10-11 03:12:00,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:00,883 INFO L225 Difference]: With dead ends: 4634 [2024-10-11 03:12:00,884 INFO L226 Difference]: Without dead ends: 2549 [2024-10-11 03:12:00,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:12:00,892 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 18 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:00,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 233 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:12:00,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2549 states. [2024-10-11 03:12:01,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2549 to 2549. [2024-10-11 03:12:01,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2549 states, 2034 states have (on average 1.4267453294001966) internal successors, (2902), 2115 states have internal predecessors, (2902), 273 states have call successors, (273), 145 states have call predecessors, (273), 241 states have return successors, (1046), 320 states have call predecessors, (1046), 273 states have call successors, (1046) [2024-10-11 03:12:01,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2549 states to 2549 states and 4221 transitions. [2024-10-11 03:12:01,146 INFO L78 Accepts]: Start accepts. Automaton has 2549 states and 4221 transitions. Word has length 96 [2024-10-11 03:12:01,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:01,147 INFO L471 AbstractCegarLoop]: Abstraction has 2549 states and 4221 transitions. [2024-10-11 03:12:01,147 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), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 03:12:01,147 INFO L276 IsEmpty]: Start isEmpty. Operand 2549 states and 4221 transitions. [2024-10-11 03:12:01,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-11 03:12:01,157 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:01,157 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:12:01,175 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-11 03:12:01,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:01,358 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:01,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:01,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1181222875, now seen corresponding path program 1 times [2024-10-11 03:12:01,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:01,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46343759] [2024-10-11 03:12:01,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:01,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:01,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:01,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:12:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:01,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 03:12:01,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:01,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 03:12:01,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:01,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 03:12:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:01,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 03:12:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:01,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 03:12:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:01,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 03:12:01,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:01,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 03:12:01,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:01,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 03:12:01,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:01,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 03:12:01,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:01,530 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-11 03:12:01,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:01,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46343759] [2024-10-11 03:12:01,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46343759] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:12:01,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505726011] [2024-10-11 03:12:01,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:01,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:01,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:12:01,533 INFO L229 MonitoredProcess]: Starting monitored process 11 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 03:12:01,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-11 03:12:01,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:01,620 INFO L255 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 03:12:01,622 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:12:01,690 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 03:12:01,691 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:12:01,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1505726011] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:01,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:12:01,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-10-11 03:12:01,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330917499] [2024-10-11 03:12:01,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:01,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:12:01,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:01,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:12:01,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:12:01,692 INFO L87 Difference]: Start difference. First operand 2549 states and 4221 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 03:12:02,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:02,219 INFO L93 Difference]: Finished difference Result 7898 states and 13749 transitions. [2024-10-11 03:12:02,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:12:02,220 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 96 [2024-10-11 03:12:02,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:02,260 INFO L225 Difference]: With dead ends: 7898 [2024-10-11 03:12:02,261 INFO L226 Difference]: Without dead ends: 5577 [2024-10-11 03:12:02,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:12:02,274 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 183 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:02,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 576 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:12:02,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5577 states. [2024-10-11 03:12:02,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5577 to 5493. [2024-10-11 03:12:02,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5493 states, 4456 states have (on average 1.4254937163375225) internal successors, (6352), 4723 states have internal predecessors, (6352), 481 states have call successors, (481), 257 states have call predecessors, (481), 555 states have return successors, (2556), 576 states have call predecessors, (2556), 481 states have call successors, (2556) [2024-10-11 03:12:02,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5493 states to 5493 states and 9389 transitions. [2024-10-11 03:12:02,977 INFO L78 Accepts]: Start accepts. Automaton has 5493 states and 9389 transitions. Word has length 96 [2024-10-11 03:12:02,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:02,977 INFO L471 AbstractCegarLoop]: Abstraction has 5493 states and 9389 transitions. [2024-10-11 03:12:02,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 03:12:02,978 INFO L276 IsEmpty]: Start isEmpty. Operand 5493 states and 9389 transitions. [2024-10-11 03:12:03,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-11 03:12:03,010 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:03,011 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:12:03,028 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-11 03:12:03,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-11 03:12:03,215 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:03,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:03,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1860495129, now seen corresponding path program 1 times [2024-10-11 03:12:03,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:03,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449807745] [2024-10-11 03:12:03,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:03,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:03,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:03,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:12:03,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:03,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 03:12:03,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:03,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 03:12:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:03,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 03:12:03,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:03,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 03:12:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:03,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 03:12:03,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:03,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 03:12:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:03,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 03:12:03,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:03,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 03:12:03,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:03,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 03:12:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:03,381 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-11 03:12:03,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:03,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449807745] [2024-10-11 03:12:03,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449807745] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:12:03,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576645049] [2024-10-11 03:12:03,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:03,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:03,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:12:03,384 INFO L229 MonitoredProcess]: Starting monitored process 12 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 03:12:03,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-11 03:12:03,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:03,483 INFO L255 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 03:12:03,486 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:12:03,546 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-11 03:12:03,546 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:12:03,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576645049] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:03,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:12:03,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-10-11 03:12:03,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73585031] [2024-10-11 03:12:03,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:03,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:12:03,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:03,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:12:03,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:12:03,549 INFO L87 Difference]: Start difference. First operand 5493 states and 9389 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 03:12:04,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:04,196 INFO L93 Difference]: Finished difference Result 11994 states and 20213 transitions. [2024-10-11 03:12:04,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:12:04,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 96 [2024-10-11 03:12:04,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:04,262 INFO L225 Difference]: With dead ends: 11994 [2024-10-11 03:12:04,262 INFO L226 Difference]: Without dead ends: 6727 [2024-10-11 03:12:04,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-10-11 03:12:04,284 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 75 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:04,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 244 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:12:04,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6727 states. [2024-10-11 03:12:04,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6727 to 5493. [2024-10-11 03:12:04,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5493 states, 4456 states have (on average 1.4252692998204668) internal successors, (6351), 4723 states have internal predecessors, (6351), 481 states have call successors, (481), 257 states have call predecessors, (481), 555 states have return successors, (2556), 576 states have call predecessors, (2556), 481 states have call successors, (2556) [2024-10-11 03:12:04,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5493 states to 5493 states and 9388 transitions. [2024-10-11 03:12:04,856 INFO L78 Accepts]: Start accepts. Automaton has 5493 states and 9388 transitions. Word has length 96 [2024-10-11 03:12:04,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:04,857 INFO L471 AbstractCegarLoop]: Abstraction has 5493 states and 9388 transitions. [2024-10-11 03:12:04,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 03:12:04,858 INFO L276 IsEmpty]: Start isEmpty. Operand 5493 states and 9388 transitions. [2024-10-11 03:12:04,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-11 03:12:04,894 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:04,894 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:12:04,912 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-11 03:12:05,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-11 03:12:05,095 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:05,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:05,095 INFO L85 PathProgramCache]: Analyzing trace with hash -315091207, now seen corresponding path program 1 times [2024-10-11 03:12:05,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:05,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305167270] [2024-10-11 03:12:05,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:05,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:05,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:05,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:12:05,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:05,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-11 03:12:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:05,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 03:12:05,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:05,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-11 03:12:05,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:05,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 03:12:05,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:05,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 03:12:05,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:05,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 03:12:05,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:05,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 03:12:05,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:05,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 03:12:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:05,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-11 03:12:05,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:05,243 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-11 03:12:05,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:05,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305167270] [2024-10-11 03:12:05,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305167270] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:12:05,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422970884] [2024-10-11 03:12:05,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:05,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:05,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:12:05,247 INFO L229 MonitoredProcess]: Starting monitored process 13 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 03:12:05,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-11 03:12:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:05,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 03:12:05,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:12:05,356 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-11 03:12:05,357 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:12:05,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422970884] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:05,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:12:05,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-10-11 03:12:05,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968789999] [2024-10-11 03:12:05,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:05,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:12:05,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:05,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:12:05,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:12:05,360 INFO L87 Difference]: Start difference. First operand 5493 states and 9388 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 03:12:05,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:05,751 INFO L93 Difference]: Finished difference Result 10940 states and 19073 transitions. [2024-10-11 03:12:05,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:12:05,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 97 [2024-10-11 03:12:05,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:05,839 INFO L225 Difference]: With dead ends: 10940 [2024-10-11 03:12:05,839 INFO L226 Difference]: Without dead ends: 5853 [2024-10-11 03:12:05,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:12:05,857 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 16 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:05,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 233 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:12:05,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5853 states. [2024-10-11 03:12:06,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5853 to 5853. [2024-10-11 03:12:06,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5853 states, 4680 states have (on average 1.416025641025641) internal successors, (6627), 4939 states have internal predecessors, (6627), 577 states have call successors, (577), 305 states have call predecessors, (577), 595 states have return successors, (2916), 672 states have call predecessors, (2916), 577 states have call successors, (2916) [2024-10-11 03:12:06,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5853 states to 5853 states and 10120 transitions. [2024-10-11 03:12:06,697 INFO L78 Accepts]: Start accepts. Automaton has 5853 states and 10120 transitions. Word has length 97 [2024-10-11 03:12:06,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:06,697 INFO L471 AbstractCegarLoop]: Abstraction has 5853 states and 10120 transitions. [2024-10-11 03:12:06,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 03:12:06,697 INFO L276 IsEmpty]: Start isEmpty. Operand 5853 states and 10120 transitions. [2024-10-11 03:12:06,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-11 03:12:06,735 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:06,735 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:12:06,753 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-11 03:12:06,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-11 03:12:06,936 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:06,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:06,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1457593673, now seen corresponding path program 1 times [2024-10-11 03:12:06,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:06,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059388888] [2024-10-11 03:12:06,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:06,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:06,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:07,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:12:07,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:07,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-11 03:12:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:07,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 03:12:07,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:07,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-11 03:12:07,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:07,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 03:12:07,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:07,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 03:12:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:07,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 03:12:07,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:07,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 03:12:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:07,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 03:12:07,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:07,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-11 03:12:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:07,065 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-11 03:12:07,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:07,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059388888] [2024-10-11 03:12:07,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059388888] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:12:07,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424871936] [2024-10-11 03:12:07,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:07,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:07,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:12:07,068 INFO L229 MonitoredProcess]: Starting monitored process 14 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 03:12:07,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-11 03:12:07,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:07,163 INFO L255 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 03:12:07,165 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:12:07,219 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-11 03:12:07,222 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:12:07,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424871936] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:07,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:12:07,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-10-11 03:12:07,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031493185] [2024-10-11 03:12:07,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:07,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:12:07,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:07,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:12:07,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:12:07,223 INFO L87 Difference]: Start difference. First operand 5853 states and 10120 transitions. Second operand has 5 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 03:12:07,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:07,790 INFO L93 Difference]: Finished difference Result 12398 states and 21091 transitions. [2024-10-11 03:12:07,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:12:07,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 97 [2024-10-11 03:12:07,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:07,840 INFO L225 Difference]: With dead ends: 12398 [2024-10-11 03:12:07,841 INFO L226 Difference]: Without dead ends: 6807 [2024-10-11 03:12:07,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-10-11 03:12:07,868 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 77 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:07,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 230 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:12:07,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6807 states. [2024-10-11 03:12:08,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6807 to 5853. [2024-10-11 03:12:08,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5853 states, 4680 states have (on average 1.4151709401709403) internal successors, (6623), 4939 states have internal predecessors, (6623), 577 states have call successors, (577), 305 states have call predecessors, (577), 595 states have return successors, (2916), 672 states have call predecessors, (2916), 577 states have call successors, (2916) [2024-10-11 03:12:08,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5853 states to 5853 states and 10116 transitions. [2024-10-11 03:12:08,532 INFO L78 Accepts]: Start accepts. Automaton has 5853 states and 10116 transitions. Word has length 97 [2024-10-11 03:12:08,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:08,533 INFO L471 AbstractCegarLoop]: Abstraction has 5853 states and 10116 transitions. [2024-10-11 03:12:08,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 03:12:08,533 INFO L276 IsEmpty]: Start isEmpty. Operand 5853 states and 10116 transitions. [2024-10-11 03:12:08,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-11 03:12:08,556 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:08,556 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:12:08,573 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-11 03:12:08,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,14 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:08,760 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:08,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:08,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1091145433, now seen corresponding path program 1 times [2024-10-11 03:12:08,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:08,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128689393] [2024-10-11 03:12:08,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:08,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:08,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:08,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:12:08,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:08,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:12:08,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:08,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 03:12:08,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:08,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 03:12:08,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:08,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 03:12:08,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:08,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 03:12:08,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:08,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 03:12:08,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:08,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 03:12:08,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:08,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 03:12:08,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:08,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-11 03:12:08,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:08,888 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-11 03:12:08,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:08,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128689393] [2024-10-11 03:12:08,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128689393] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:12:08,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424589723] [2024-10-11 03:12:08,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:08,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:08,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:12:08,892 INFO L229 MonitoredProcess]: Starting monitored process 15 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 03:12:08,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-11 03:12:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:08,982 INFO L255 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 03:12:08,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:12:09,003 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-11 03:12:09,003 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:12:09,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [424589723] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:09,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:12:09,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-10-11 03:12:09,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056528214] [2024-10-11 03:12:09,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:09,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:12:09,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:09,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:12:09,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:12:09,005 INFO L87 Difference]: Start difference. First operand 5853 states and 10116 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 03:12:09,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:09,408 INFO L93 Difference]: Finished difference Result 11856 states and 20687 transitions. [2024-10-11 03:12:09,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:12:09,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 99 [2024-10-11 03:12:09,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:09,444 INFO L225 Difference]: With dead ends: 11856 [2024-10-11 03:12:09,445 INFO L226 Difference]: Without dead ends: 6465 [2024-10-11 03:12:09,460 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:12:09,461 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 20 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:09,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 237 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:12:09,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6465 states. [2024-10-11 03:12:09,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6465 to 6465. [2024-10-11 03:12:09,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6465 states, 5076 states have (on average 1.3977541371158393) internal successors, (7095), 5335 states have internal predecessors, (7095), 721 states have call successors, (721), 377 states have call predecessors, (721), 667 states have return successors, (3444), 816 states have call predecessors, (3444), 721 states have call successors, (3444) [2024-10-11 03:12:09,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6465 states to 6465 states and 11260 transitions. [2024-10-11 03:12:09,980 INFO L78 Accepts]: Start accepts. Automaton has 6465 states and 11260 transitions. Word has length 99 [2024-10-11 03:12:09,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:09,981 INFO L471 AbstractCegarLoop]: Abstraction has 6465 states and 11260 transitions. [2024-10-11 03:12:09,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 03:12:09,981 INFO L276 IsEmpty]: Start isEmpty. Operand 6465 states and 11260 transitions. [2024-10-11 03:12:10,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-11 03:12:10,006 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:10,006 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:12:10,023 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-11 03:12:10,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-11 03:12:10,207 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:10,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:10,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1930179095, now seen corresponding path program 1 times [2024-10-11 03:12:10,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:10,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653527640] [2024-10-11 03:12:10,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:10,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:10,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:12:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:10,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:12:10,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:10,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 03:12:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:10,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 03:12:10,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:10,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 03:12:10,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:10,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 03:12:10,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:10,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 03:12:10,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:10,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 03:12:10,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:10,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 03:12:10,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:10,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-11 03:12:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:10,325 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-11 03:12:10,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:10,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653527640] [2024-10-11 03:12:10,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653527640] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:12:10,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719831589] [2024-10-11 03:12:10,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:10,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:10,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:12:10,328 INFO L229 MonitoredProcess]: Starting monitored process 16 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 03:12:10,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-11 03:12:10,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:10,417 INFO L255 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 03:12:10,420 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:12:10,482 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 03:12:10,482 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:12:10,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719831589] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:10,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:12:10,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-10-11 03:12:10,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842746235] [2024-10-11 03:12:10,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:10,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:12:10,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:10,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:12:10,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:12:10,485 INFO L87 Difference]: Start difference. First operand 6465 states and 11260 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 03:12:11,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:11,431 INFO L93 Difference]: Finished difference Result 12480 states and 20997 transitions. [2024-10-11 03:12:11,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:12:11,432 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 99 [2024-10-11 03:12:11,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:11,478 INFO L225 Difference]: With dead ends: 12480 [2024-10-11 03:12:11,478 INFO L226 Difference]: Without dead ends: 6565 [2024-10-11 03:12:11,501 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:12:11,502 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 178 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:11,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 547 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:12:11,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6565 states. [2024-10-11 03:12:12,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6565 to 6561. [2024-10-11 03:12:12,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6561 states, 5148 states have (on average 1.385975135975136) internal successors, (7135), 5431 states have internal predecessors, (7135), 721 states have call successors, (721), 377 states have call predecessors, (721), 691 states have return successors, (3016), 816 states have call predecessors, (3016), 721 states have call successors, (3016) [2024-10-11 03:12:12,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6561 states to 6561 states and 10872 transitions. [2024-10-11 03:12:12,420 INFO L78 Accepts]: Start accepts. Automaton has 6561 states and 10872 transitions. Word has length 99 [2024-10-11 03:12:12,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:12,420 INFO L471 AbstractCegarLoop]: Abstraction has 6561 states and 10872 transitions. [2024-10-11 03:12:12,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 03:12:12,421 INFO L276 IsEmpty]: Start isEmpty. Operand 6561 states and 10872 transitions. [2024-10-11 03:12:12,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-11 03:12:12,448 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:12,448 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:12:12,465 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-10-11 03:12:12,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-11 03:12:12,653 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:12,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:12,654 INFO L85 PathProgramCache]: Analyzing trace with hash -96433003, now seen corresponding path program 2 times [2024-10-11 03:12:12,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:12,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018767362] [2024-10-11 03:12:12,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:12,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:12,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:12,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:12:12,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:12,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:12:12,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:12,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 03:12:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:12,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 03:12:12,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:12,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 03:12:12,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:12,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 03:12:12,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:12,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 03:12:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:12,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 03:12:12,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:12,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 03:12:12,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:12,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-11 03:12:12,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:12,794 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-11 03:12:12,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:12,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018767362] [2024-10-11 03:12:12,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018767362] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:12:12,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48286438] [2024-10-11 03:12:12,795 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 03:12:12,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:12,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:12:12,797 INFO L229 MonitoredProcess]: Starting monitored process 17 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 03:12:12,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-11 03:12:12,872 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 03:12:12,872 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 03:12:12,874 INFO L255 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 03:12:12,876 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:12:12,897 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-10-11 03:12:12,898 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:12:12,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48286438] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:12,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:12:12,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2024-10-11 03:12:12,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285022157] [2024-10-11 03:12:12,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:12,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 03:12:12,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:12,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 03:12:12,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-11 03:12:12,902 INFO L87 Difference]: Start difference. First operand 6561 states and 10872 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-10-11 03:12:13,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:13,444 INFO L93 Difference]: Finished difference Result 6693 states and 11067 transitions. [2024-10-11 03:12:13,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 03:12:13,444 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 99 [2024-10-11 03:12:13,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:13,475 INFO L225 Difference]: With dead ends: 6693 [2024-10-11 03:12:13,475 INFO L226 Difference]: Without dead ends: 6689 [2024-10-11 03:12:13,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-11 03:12:13,479 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:13,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 352 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:12:13,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6689 states. [2024-10-11 03:12:14,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6689 to 6689. [2024-10-11 03:12:14,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6689 states, 5276 states have (on average 1.3766110689916604) internal successors, (7263), 5559 states have internal predecessors, (7263), 721 states have call successors, (721), 377 states have call predecessors, (721), 691 states have return successors, (3016), 816 states have call predecessors, (3016), 721 states have call successors, (3016) [2024-10-11 03:12:14,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6689 states to 6689 states and 11000 transitions. [2024-10-11 03:12:14,061 INFO L78 Accepts]: Start accepts. Automaton has 6689 states and 11000 transitions. Word has length 99 [2024-10-11 03:12:14,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:14,062 INFO L471 AbstractCegarLoop]: Abstraction has 6689 states and 11000 transitions. [2024-10-11 03:12:14,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-10-11 03:12:14,062 INFO L276 IsEmpty]: Start isEmpty. Operand 6689 states and 11000 transitions. [2024-10-11 03:12:14,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-11 03:12:14,085 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:14,085 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:12:14,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-10-11 03:12:14,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-11 03:12:14,287 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:14,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:14,288 INFO L85 PathProgramCache]: Analyzing trace with hash -39174701, now seen corresponding path program 1 times [2024-10-11 03:12:14,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:14,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182119074] [2024-10-11 03:12:14,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:14,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:14,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:14,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:12:14,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:14,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:12:14,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:14,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 03:12:14,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:14,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 03:12:14,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:14,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 03:12:14,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:14,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 03:12:14,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:14,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 03:12:14,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:14,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 03:12:14,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:14,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 03:12:14,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:14,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-11 03:12:14,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:14,406 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-11 03:12:14,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:14,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182119074] [2024-10-11 03:12:14,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182119074] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:12:14,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318189689] [2024-10-11 03:12:14,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:14,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:14,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:12:14,409 INFO L229 MonitoredProcess]: Starting monitored process 18 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 03:12:14,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-11 03:12:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:14,496 INFO L255 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 03:12:14,498 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:12:14,536 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-10-11 03:12:14,537 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:12:14,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318189689] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:14,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:12:14,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-10-11 03:12:14,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830627137] [2024-10-11 03:12:14,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:14,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 03:12:14,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:14,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 03:12:14,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-10-11 03:12:14,539 INFO L87 Difference]: Start difference. First operand 6689 states and 11000 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2024-10-11 03:12:14,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:14,927 INFO L93 Difference]: Finished difference Result 12748 states and 20399 transitions. [2024-10-11 03:12:14,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:12:14,928 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 99 [2024-10-11 03:12:14,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:14,968 INFO L225 Difference]: With dead ends: 12748 [2024-10-11 03:12:14,968 INFO L226 Difference]: Without dead ends: 6625 [2024-10-11 03:12:14,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-10-11 03:12:14,988 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:14,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 584 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:12:14,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6625 states. [2024-10-11 03:12:15,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6625 to 6625. [2024-10-11 03:12:15,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6625 states, 5212 states have (on average 1.3689562547966232) internal successors, (7135), 5495 states have internal predecessors, (7135), 721 states have call successors, (721), 377 states have call predecessors, (721), 691 states have return successors, (3016), 816 states have call predecessors, (3016), 721 states have call successors, (3016) [2024-10-11 03:12:15,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6625 states to 6625 states and 10872 transitions. [2024-10-11 03:12:15,652 INFO L78 Accepts]: Start accepts. Automaton has 6625 states and 10872 transitions. Word has length 99 [2024-10-11 03:12:15,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:15,652 INFO L471 AbstractCegarLoop]: Abstraction has 6625 states and 10872 transitions. [2024-10-11 03:12:15,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2024-10-11 03:12:15,653 INFO L276 IsEmpty]: Start isEmpty. Operand 6625 states and 10872 transitions. [2024-10-11 03:12:15,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-11 03:12:15,674 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:15,676 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:12:15,694 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-10-11 03:12:15,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-11 03:12:15,877 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:15,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:15,878 INFO L85 PathProgramCache]: Analyzing trace with hash 871855670, now seen corresponding path program 1 times [2024-10-11 03:12:15,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:15,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670307468] [2024-10-11 03:12:15,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:15,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:15,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:15,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:12:15,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:15,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:12:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:15,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 03:12:15,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:15,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 03:12:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:15,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 03:12:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:15,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 03:12:15,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:15,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 03:12:15,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:15,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 03:12:15,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:15,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-11 03:12:15,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:15,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 03:12:15,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:15,999 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-11 03:12:15,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:15,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670307468] [2024-10-11 03:12:15,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670307468] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:12:16,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386633537] [2024-10-11 03:12:16,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:16,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:16,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:12:16,002 INFO L229 MonitoredProcess]: Starting monitored process 19 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 03:12:16,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-11 03:12:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:16,089 INFO L255 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 03:12:16,091 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:12:16,158 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 03:12:16,160 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:12:16,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386633537] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:16,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:12:16,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-10-11 03:12:16,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575005432] [2024-10-11 03:12:16,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:16,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:12:16,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:16,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:12:16,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:12:16,163 INFO L87 Difference]: Start difference. First operand 6625 states and 10872 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 03:12:16,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:16,868 INFO L93 Difference]: Finished difference Result 12940 states and 20614 transitions. [2024-10-11 03:12:16,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:12:16,869 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 102 [2024-10-11 03:12:16,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:16,909 INFO L225 Difference]: With dead ends: 12940 [2024-10-11 03:12:16,909 INFO L226 Difference]: Without dead ends: 6845 [2024-10-11 03:12:16,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:12:16,928 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 191 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:16,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 570 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:12:16,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6845 states. [2024-10-11 03:12:17,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6845 to 6841. [2024-10-11 03:12:17,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6841 states, 5392 states have (on average 1.3492210682492582) internal successors, (7275), 5711 states have internal predecessors, (7275), 721 states have call successors, (721), 377 states have call predecessors, (721), 727 states have return successors, (2656), 816 states have call predecessors, (2656), 721 states have call successors, (2656) [2024-10-11 03:12:17,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6841 states to 6841 states and 10652 transitions. [2024-10-11 03:12:17,514 INFO L78 Accepts]: Start accepts. Automaton has 6841 states and 10652 transitions. Word has length 102 [2024-10-11 03:12:17,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:17,515 INFO L471 AbstractCegarLoop]: Abstraction has 6841 states and 10652 transitions. [2024-10-11 03:12:17,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 03:12:17,515 INFO L276 IsEmpty]: Start isEmpty. Operand 6841 states and 10652 transitions. [2024-10-11 03:12:17,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-11 03:12:17,532 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:17,532 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:12:17,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-10-11 03:12:17,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:17,733 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:17,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:17,733 INFO L85 PathProgramCache]: Analyzing trace with hash -814324168, now seen corresponding path program 1 times [2024-10-11 03:12:17,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:17,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996100964] [2024-10-11 03:12:17,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:17,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:17,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:17,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:12:17,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:17,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:12:17,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:17,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 03:12:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:17,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 03:12:17,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:17,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 03:12:17,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:17,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 03:12:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:17,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 03:12:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:17,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 03:12:17,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:17,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-11 03:12:17,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:17,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 03:12:17,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:17,855 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-11 03:12:17,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:17,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996100964] [2024-10-11 03:12:17,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996100964] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:12:17,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979136423] [2024-10-11 03:12:17,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:17,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:17,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:12:17,857 INFO L229 MonitoredProcess]: Starting monitored process 20 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 03:12:17,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-10-11 03:12:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:17,951 INFO L255 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 03:12:17,953 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:12:17,983 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-10-11 03:12:17,984 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:12:17,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979136423] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:17,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:12:17,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 9 [2024-10-11 03:12:17,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329208483] [2024-10-11 03:12:17,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:17,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:12:17,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:17,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:12:17,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:12:17,986 INFO L87 Difference]: Start difference. First operand 6841 states and 10652 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 03:12:18,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:18,635 INFO L93 Difference]: Finished difference Result 14070 states and 21801 transitions. [2024-10-11 03:12:18,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:12:18,635 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 102 [2024-10-11 03:12:18,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:18,679 INFO L225 Difference]: With dead ends: 14070 [2024-10-11 03:12:18,679 INFO L226 Difference]: Without dead ends: 7543 [2024-10-11 03:12:18,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-11 03:12:18,699 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 76 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:18,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 222 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:12:18,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7543 states. [2024-10-11 03:12:19,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7543 to 6841. [2024-10-11 03:12:19,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6841 states, 5392 states have (on average 1.3477373887240356) internal successors, (7267), 5711 states have internal predecessors, (7267), 721 states have call successors, (721), 377 states have call predecessors, (721), 727 states have return successors, (2656), 816 states have call predecessors, (2656), 721 states have call successors, (2656) [2024-10-11 03:12:19,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6841 states to 6841 states and 10644 transitions. [2024-10-11 03:12:19,348 INFO L78 Accepts]: Start accepts. Automaton has 6841 states and 10644 transitions. Word has length 102 [2024-10-11 03:12:19,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:19,349 INFO L471 AbstractCegarLoop]: Abstraction has 6841 states and 10644 transitions. [2024-10-11 03:12:19,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 03:12:19,349 INFO L276 IsEmpty]: Start isEmpty. Operand 6841 states and 10644 transitions. [2024-10-11 03:12:19,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-11 03:12:19,370 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:19,370 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:12:19,387 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-10-11 03:12:19,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:19,571 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:19,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:19,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1864122538, now seen corresponding path program 1 times [2024-10-11 03:12:19,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:19,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900690741] [2024-10-11 03:12:19,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:19,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:19,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:12:19,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:19,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 03:12:19,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:19,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 03:12:19,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:19,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 03:12:19,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:19,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 03:12:19,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:19,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 03:12:19,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:19,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 03:12:19,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:19,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 03:12:19,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:19,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-11 03:12:19,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:19,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 03:12:19,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:19,689 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-11 03:12:19,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:19,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900690741] [2024-10-11 03:12:19,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900690741] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:12:19,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652554450] [2024-10-11 03:12:19,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:19,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:19,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:12:19,692 INFO L229 MonitoredProcess]: Starting monitored process 21 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 03:12:19,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-10-11 03:12:19,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:19,782 INFO L255 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 03:12:19,784 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:12:19,804 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-11 03:12:19,804 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:12:19,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652554450] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:19,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:12:19,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-10-11 03:12:19,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626233626] [2024-10-11 03:12:19,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:19,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:12:19,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:19,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:12:19,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 03:12:19,806 INFO L87 Difference]: Start difference. First operand 6841 states and 10644 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 03:12:20,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:20,593 INFO L93 Difference]: Finished difference Result 14110 states and 21908 transitions. [2024-10-11 03:12:20,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:12:20,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 104 [2024-10-11 03:12:20,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:20,641 INFO L225 Difference]: With dead ends: 14110 [2024-10-11 03:12:20,641 INFO L226 Difference]: Without dead ends: 7803 [2024-10-11 03:12:20,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 03:12:20,664 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 22 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:20,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 239 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:12:20,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7803 states. [2024-10-11 03:12:21,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7803 to 7803. [2024-10-11 03:12:21,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7803 states, 6030 states have (on average 1.3203980099502488) internal successors, (7962), 6349 states have internal predecessors, (7962), 937 states have call successors, (937), 485 states have call predecessors, (937), 835 states have return successors, (3180), 1032 states have call predecessors, (3180), 937 states have call successors, (3180) [2024-10-11 03:12:21,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7803 states to 7803 states and 12079 transitions. [2024-10-11 03:12:21,677 INFO L78 Accepts]: Start accepts. Automaton has 7803 states and 12079 transitions. Word has length 104 [2024-10-11 03:12:21,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:21,678 INFO L471 AbstractCegarLoop]: Abstraction has 7803 states and 12079 transitions. [2024-10-11 03:12:21,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 03:12:21,678 INFO L276 IsEmpty]: Start isEmpty. Operand 7803 states and 12079 transitions. [2024-10-11 03:12:21,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-11 03:12:21,700 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:21,700 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:12:21,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-10-11 03:12:21,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,21 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:21,901 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:21,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:21,901 INFO L85 PathProgramCache]: Analyzing trace with hash 721620072, now seen corresponding path program 1 times [2024-10-11 03:12:21,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:21,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218359104] [2024-10-11 03:12:21,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:21,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:21,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:12:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:21,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 03:12:21,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:22,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 03:12:22,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:22,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 03:12:22,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:22,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 03:12:22,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:22,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 03:12:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:22,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 03:12:22,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:22,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 03:12:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:22,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-11 03:12:22,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:22,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 03:12:22,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:22,019 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-11 03:12:22,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:22,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218359104] [2024-10-11 03:12:22,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218359104] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:12:22,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797919102] [2024-10-11 03:12:22,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:22,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:22,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:12:22,022 INFO L229 MonitoredProcess]: Starting monitored process 22 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 03:12:22,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-10-11 03:12:22,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:22,116 INFO L255 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 03:12:22,118 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:12:22,186 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 03:12:22,187 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:12:22,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1797919102] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:22,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:12:22,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2024-10-11 03:12:22,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874141437] [2024-10-11 03:12:22,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:22,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:12:22,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:22,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:12:22,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-11 03:12:22,189 INFO L87 Difference]: Start difference. First operand 7803 states and 12079 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 03:12:22,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:22,751 INFO L93 Difference]: Finished difference Result 15114 states and 22661 transitions. [2024-10-11 03:12:22,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:12:22,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 104 [2024-10-11 03:12:22,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:22,793 INFO L225 Difference]: With dead ends: 15114 [2024-10-11 03:12:22,793 INFO L226 Difference]: Without dead ends: 7969 [2024-10-11 03:12:22,814 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-10-11 03:12:22,815 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 173 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:22,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 508 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:12:22,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7969 states. [2024-10-11 03:12:23,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7969 to 7965. [2024-10-11 03:12:23,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7965 states, 6138 states have (on average 1.30514825676116) internal successors, (8011), 6511 states have internal predecessors, (8011), 937 states have call successors, (937), 485 states have call predecessors, (937), 889 states have return successors, (2884), 1032 states have call predecessors, (2884), 937 states have call successors, (2884) [2024-10-11 03:12:23,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7965 states to 7965 states and 11832 transitions. [2024-10-11 03:12:23,613 INFO L78 Accepts]: Start accepts. Automaton has 7965 states and 11832 transitions. Word has length 104 [2024-10-11 03:12:23,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:23,613 INFO L471 AbstractCegarLoop]: Abstraction has 7965 states and 11832 transitions. [2024-10-11 03:12:23,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-11 03:12:23,613 INFO L276 IsEmpty]: Start isEmpty. Operand 7965 states and 11832 transitions. [2024-10-11 03:12:23,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-11 03:12:23,631 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:23,631 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:12:23,643 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-10-11 03:12:23,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-10-11 03:12:23,832 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:23,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:23,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1400892326, now seen corresponding path program 1 times [2024-10-11 03:12:23,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:23,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841669334] [2024-10-11 03:12:23,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:23,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:23,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:12:23,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:23,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 03:12:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:23,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 03:12:23,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:23,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 03:12:23,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:23,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 03:12:23,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:23,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 03:12:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:23,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 03:12:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:23,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 03:12:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:23,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-11 03:12:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:23,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 03:12:23,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:23,942 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-11 03:12:23,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:23,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841669334] [2024-10-11 03:12:23,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841669334] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:12:23,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377769458] [2024-10-11 03:12:23,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:23,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:23,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:12:23,944 INFO L229 MonitoredProcess]: Starting monitored process 23 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 03:12:23,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-10-11 03:12:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:24,032 INFO L255 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-11 03:12:24,033 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:12:24,154 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-11 03:12:24,154 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:12:24,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [377769458] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:24,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:12:24,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-10-11 03:12:24,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560240673] [2024-10-11 03:12:24,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:24,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 03:12:24,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:24,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 03:12:24,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:12:24,156 INFO L87 Difference]: Start difference. First operand 7965 states and 11832 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-10-11 03:12:24,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:24,836 INFO L93 Difference]: Finished difference Result 11491 states and 16748 transitions. [2024-10-11 03:12:24,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:12:24,836 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 104 [2024-10-11 03:12:24,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:24,888 INFO L225 Difference]: With dead ends: 11491 [2024-10-11 03:12:24,888 INFO L226 Difference]: Without dead ends: 11487 [2024-10-11 03:12:24,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-10-11 03:12:24,897 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 159 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:24,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 206 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:12:24,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11487 states. [2024-10-11 03:12:25,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11487 to 11455. [2024-10-11 03:12:25,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11455 states, 8966 states have (on average 1.299018514387687) internal successors, (11647), 9469 states have internal predecessors, (11647), 1211 states have call successors, (1211), 727 states have call predecessors, (1211), 1277 states have return successors, (3839), 1354 states have call predecessors, (3839), 1211 states have call successors, (3839) [2024-10-11 03:12:25,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11455 states to 11455 states and 16697 transitions. [2024-10-11 03:12:25,824 INFO L78 Accepts]: Start accepts. Automaton has 11455 states and 16697 transitions. Word has length 104 [2024-10-11 03:12:25,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:25,824 INFO L471 AbstractCegarLoop]: Abstraction has 11455 states and 16697 transitions. [2024-10-11 03:12:25,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-10-11 03:12:25,824 INFO L276 IsEmpty]: Start isEmpty. Operand 11455 states and 16697 transitions. [2024-10-11 03:12:25,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-11 03:12:25,847 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:25,847 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:12:25,859 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-10-11 03:12:26,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:26,048 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:26,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:26,048 INFO L85 PathProgramCache]: Analyzing trace with hash 529672484, now seen corresponding path program 1 times [2024-10-11 03:12:26,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:26,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677047848] [2024-10-11 03:12:26,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:26,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:26,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:26,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:12:26,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:26,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 03:12:26,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:26,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 03:12:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:26,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 03:12:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:26,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 03:12:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:26,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 03:12:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:26,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 03:12:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:26,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 03:12:26,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:26,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-11 03:12:26,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:26,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-11 03:12:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:26,156 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-11 03:12:26,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:26,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677047848] [2024-10-11 03:12:26,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677047848] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:12:26,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347490147] [2024-10-11 03:12:26,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:26,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:26,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:12:26,158 INFO L229 MonitoredProcess]: Starting monitored process 24 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 03:12:26,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-10-11 03:12:26,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:26,243 INFO L255 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 03:12:26,245 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:12:26,335 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 27 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-11 03:12:26,335 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:12:26,533 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-11 03:12:26,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347490147] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-11 03:12:26,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-11 03:12:26,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 4] total 11 [2024-10-11 03:12:26,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074055073] [2024-10-11 03:12:26,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:26,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:12:26,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:26,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:12:26,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:12:26,535 INFO L87 Difference]: Start difference. First operand 11455 states and 16697 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 03:12:28,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:28,186 INFO L93 Difference]: Finished difference Result 33048 states and 48522 transitions. [2024-10-11 03:12:28,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:12:28,186 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 106 [2024-10-11 03:12:28,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:28,255 INFO L225 Difference]: With dead ends: 33048 [2024-10-11 03:12:28,255 INFO L226 Difference]: Without dead ends: 21671 [2024-10-11 03:12:28,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 222 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-10-11 03:12:28,293 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 236 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:28,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 261 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:12:28,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21671 states. [2024-10-11 03:12:30,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21671 to 21139. [2024-10-11 03:12:30,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21139 states, 16631 states have (on average 1.259575491551921) internal successors, (20948), 17751 states have internal predecessors, (20948), 1839 states have call successors, (1839), 1453 states have call predecessors, (1839), 2668 states have return successors, (6341), 1966 states have call predecessors, (6341), 1839 states have call successors, (6341) [2024-10-11 03:12:30,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21139 states to 21139 states and 29128 transitions. [2024-10-11 03:12:30,184 INFO L78 Accepts]: Start accepts. Automaton has 21139 states and 29128 transitions. Word has length 106 [2024-10-11 03:12:30,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:30,185 INFO L471 AbstractCegarLoop]: Abstraction has 21139 states and 29128 transitions. [2024-10-11 03:12:30,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-11 03:12:30,185 INFO L276 IsEmpty]: Start isEmpty. Operand 21139 states and 29128 transitions. [2024-10-11 03:12:30,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-10-11 03:12:30,201 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:30,201 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:12:30,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-10-11 03:12:30,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,24 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:30,402 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:30,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:30,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1787052981, now seen corresponding path program 1 times [2024-10-11 03:12:30,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:30,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568608008] [2024-10-11 03:12:30,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:30,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:30,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:30,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:12:30,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:30,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 03:12:30,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:30,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 03:12:30,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:30,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 03:12:30,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:30,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 03:12:30,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:30,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 03:12:30,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:30,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 03:12:30,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:30,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 03:12:30,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:30,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 03:12:30,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:30,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 03:12:30,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:30,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 03:12:30,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:30,619 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-10-11 03:12:30,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:30,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568608008] [2024-10-11 03:12:30,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568608008] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:12:30,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792903938] [2024-10-11 03:12:30,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:30,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:30,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:12:30,621 INFO L229 MonitoredProcess]: Starting monitored process 25 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 03:12:30,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-10-11 03:12:30,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:30,726 INFO L255 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 03:12:30,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:12:30,744 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 03:12:30,745 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:12:30,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792903938] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:30,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:12:30,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-11 03:12:30,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347945829] [2024-10-11 03:12:30,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:30,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:12:30,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:30,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:12:30,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-11 03:12:30,748 INFO L87 Difference]: Start difference. First operand 21139 states and 29128 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-11 03:12:32,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:32,519 INFO L93 Difference]: Finished difference Result 42070 states and 57830 transitions. [2024-10-11 03:12:32,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:12:32,520 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 119 [2024-10-11 03:12:32,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:32,598 INFO L225 Difference]: With dead ends: 42070 [2024-10-11 03:12:32,598 INFO L226 Difference]: Without dead ends: 21283 [2024-10-11 03:12:32,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-11 03:12:32,638 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:32,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 226 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:12:32,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21283 states. [2024-10-11 03:12:34,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21283 to 21283. [2024-10-11 03:12:34,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21283 states, 16775 states have (on average 1.2573472429210135) internal successors, (21092), 17895 states have internal predecessors, (21092), 1839 states have call successors, (1839), 1453 states have call predecessors, (1839), 2668 states have return successors, (6341), 1966 states have call predecessors, (6341), 1839 states have call successors, (6341) [2024-10-11 03:12:34,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21283 states to 21283 states and 29272 transitions. [2024-10-11 03:12:34,414 INFO L78 Accepts]: Start accepts. Automaton has 21283 states and 29272 transitions. Word has length 119 [2024-10-11 03:12:34,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:34,414 INFO L471 AbstractCegarLoop]: Abstraction has 21283 states and 29272 transitions. [2024-10-11 03:12:34,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-11 03:12:34,415 INFO L276 IsEmpty]: Start isEmpty. Operand 21283 states and 29272 transitions. [2024-10-11 03:12:34,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-11 03:12:34,433 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:34,433 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:12:34,445 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-10-11 03:12:34,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-10-11 03:12:34,634 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:34,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:34,634 INFO L85 PathProgramCache]: Analyzing trace with hash -883405082, now seen corresponding path program 1 times [2024-10-11 03:12:34,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:34,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311252502] [2024-10-11 03:12:34,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:34,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:34,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:12:34,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:34,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 03:12:34,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:34,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 03:12:34,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:34,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 03:12:34,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:34,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 03:12:34,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:34,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 03:12:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:34,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 03:12:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:34,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-11 03:12:34,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:34,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 03:12:34,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:34,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 03:12:34,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:34,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 03:12:34,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:34,786 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-10-11 03:12:34,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:34,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311252502] [2024-10-11 03:12:34,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311252502] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:12:34,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688132679] [2024-10-11 03:12:34,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:34,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:34,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:12:34,789 INFO L229 MonitoredProcess]: Starting monitored process 26 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 03:12:34,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-10-11 03:12:34,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:34,890 INFO L255 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 03:12:34,892 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:12:34,906 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 03:12:34,907 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:12:34,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688132679] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:34,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:12:34,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-11 03:12:34,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625566268] [2024-10-11 03:12:34,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:34,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:12:34,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:34,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:12:34,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-11 03:12:34,911 INFO L87 Difference]: Start difference. First operand 21283 states and 29272 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-11 03:12:36,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:36,368 INFO L93 Difference]: Finished difference Result 42214 states and 57830 transitions. [2024-10-11 03:12:36,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:12:36,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 120 [2024-10-11 03:12:36,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:36,471 INFO L225 Difference]: With dead ends: 42214 [2024-10-11 03:12:36,471 INFO L226 Difference]: Without dead ends: 21283 [2024-10-11 03:12:36,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-11 03:12:36,522 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 3 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:36,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 223 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:12:36,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21283 states. [2024-10-11 03:12:38,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21283 to 21283. [2024-10-11 03:12:38,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21283 states, 16775 states have (on average 1.24876304023845) internal successors, (20948), 17895 states have internal predecessors, (20948), 1839 states have call successors, (1839), 1453 states have call predecessors, (1839), 2668 states have return successors, (6341), 1966 states have call predecessors, (6341), 1839 states have call successors, (6341) [2024-10-11 03:12:38,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21283 states to 21283 states and 29128 transitions. [2024-10-11 03:12:38,440 INFO L78 Accepts]: Start accepts. Automaton has 21283 states and 29128 transitions. Word has length 120 [2024-10-11 03:12:38,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:38,440 INFO L471 AbstractCegarLoop]: Abstraction has 21283 states and 29128 transitions. [2024-10-11 03:12:38,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-11 03:12:38,440 INFO L276 IsEmpty]: Start isEmpty. Operand 21283 states and 29128 transitions. [2024-10-11 03:12:38,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-11 03:12:38,460 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:38,460 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:12:38,477 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-10-11 03:12:38,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-10-11 03:12:38,665 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:38,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:38,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1018147445, now seen corresponding path program 1 times [2024-10-11 03:12:38,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:38,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430660157] [2024-10-11 03:12:38,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:38,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:38,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:38,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:12:38,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:38,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 03:12:38,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:38,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 03:12:38,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:38,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 03:12:38,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:38,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 03:12:38,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:38,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 03:12:38,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:38,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 03:12:38,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:38,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-11 03:12:38,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:38,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 03:12:38,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:38,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 03:12:38,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:38,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 03:12:38,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:38,825 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-10-11 03:12:38,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:38,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430660157] [2024-10-11 03:12:38,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430660157] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:12:38,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460068112] [2024-10-11 03:12:38,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:38,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:38,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:12:38,828 INFO L229 MonitoredProcess]: Starting monitored process 27 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 03:12:38,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-10-11 03:12:38,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:38,936 INFO L255 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 03:12:38,938 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:12:39,039 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 03:12:39,040 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:12:39,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460068112] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:39,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:12:39,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2024-10-11 03:12:39,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819261023] [2024-10-11 03:12:39,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:39,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:12:39,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:39,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:12:39,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-10-11 03:12:39,043 INFO L87 Difference]: Start difference. First operand 21283 states and 29128 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-11 03:12:41,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:41,024 INFO L93 Difference]: Finished difference Result 42214 states and 57542 transitions. [2024-10-11 03:12:41,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 03:12:41,024 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 120 [2024-10-11 03:12:41,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:41,102 INFO L225 Difference]: With dead ends: 42214 [2024-10-11 03:12:41,102 INFO L226 Difference]: Without dead ends: 21283 [2024-10-11 03:12:41,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-10-11 03:12:41,140 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 209 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:41,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 120 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:12:41,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21283 states. [2024-10-11 03:12:42,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21283 to 21283. [2024-10-11 03:12:42,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21283 states, 16775 states have (on average 1.2459016393442623) internal successors, (20900), 17895 states have internal predecessors, (20900), 1839 states have call successors, (1839), 1453 states have call predecessors, (1839), 2668 states have return successors, (6341), 1966 states have call predecessors, (6341), 1839 states have call successors, (6341) [2024-10-11 03:12:42,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21283 states to 21283 states and 29080 transitions. [2024-10-11 03:12:42,961 INFO L78 Accepts]: Start accepts. Automaton has 21283 states and 29080 transitions. Word has length 120 [2024-10-11 03:12:42,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:42,961 INFO L471 AbstractCegarLoop]: Abstraction has 21283 states and 29080 transitions. [2024-10-11 03:12:42,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-11 03:12:42,961 INFO L276 IsEmpty]: Start isEmpty. Operand 21283 states and 29080 transitions. [2024-10-11 03:12:42,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-11 03:12:42,979 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:42,979 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:12:42,992 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-10-11 03:12:43,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-10-11 03:12:43,180 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:43,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:43,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1385487328, now seen corresponding path program 1 times [2024-10-11 03:12:43,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:43,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246422027] [2024-10-11 03:12:43,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:43,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:43,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:43,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:12:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:43,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 03:12:43,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:43,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 03:12:43,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:43,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 03:12:43,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:43,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 03:12:43,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:43,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 03:12:43,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:43,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 03:12:43,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:43,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 03:12:43,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:43,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 03:12:43,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:43,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 03:12:43,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:43,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 03:12:43,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:43,389 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-10-11 03:12:43,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:43,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246422027] [2024-10-11 03:12:43,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246422027] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:12:43,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958732767] [2024-10-11 03:12:43,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:43,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:43,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:12:43,392 INFO L229 MonitoredProcess]: Starting monitored process 28 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 03:12:43,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-10-11 03:12:43,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:43,497 INFO L255 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 03:12:43,499 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:12:43,513 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 03:12:43,513 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:12:43,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958732767] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:43,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:12:43,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-10-11 03:12:43,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605715835] [2024-10-11 03:12:43,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:43,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:12:43,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:43,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:12:43,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:12:43,515 INFO L87 Difference]: Start difference. First operand 21283 states and 29080 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-11 03:12:45,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:45,036 INFO L93 Difference]: Finished difference Result 42742 states and 58214 transitions. [2024-10-11 03:12:45,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:12:45,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 121 [2024-10-11 03:12:45,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:45,118 INFO L225 Difference]: With dead ends: 42742 [2024-10-11 03:12:45,119 INFO L226 Difference]: Without dead ends: 21811 [2024-10-11 03:12:45,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:12:45,158 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 9 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:45,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 232 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:12:45,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21811 states. [2024-10-11 03:12:46,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21811 to 21619. [2024-10-11 03:12:46,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21619 states, 17111 states have (on average 1.2466834200222079) internal successors, (21332), 18231 states have internal predecessors, (21332), 1839 states have call successors, (1839), 1453 states have call predecessors, (1839), 2668 states have return successors, (6341), 1966 states have call predecessors, (6341), 1839 states have call successors, (6341) [2024-10-11 03:12:46,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21619 states to 21619 states and 29512 transitions. [2024-10-11 03:12:46,943 INFO L78 Accepts]: Start accepts. Automaton has 21619 states and 29512 transitions. Word has length 121 [2024-10-11 03:12:46,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:46,943 INFO L471 AbstractCegarLoop]: Abstraction has 21619 states and 29512 transitions. [2024-10-11 03:12:46,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-11 03:12:46,943 INFO L276 IsEmpty]: Start isEmpty. Operand 21619 states and 29512 transitions. [2024-10-11 03:12:46,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-11 03:12:46,962 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:46,962 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:12:46,974 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-10-11 03:12:47,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,28 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:47,162 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:47,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:47,163 INFO L85 PathProgramCache]: Analyzing trace with hash -2117454754, now seen corresponding path program 1 times [2024-10-11 03:12:47,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:47,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035953061] [2024-10-11 03:12:47,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:47,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:47,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:47,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:12:47,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:47,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 03:12:47,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:47,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 03:12:47,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:47,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 03:12:47,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:47,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 03:12:47,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:47,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 03:12:47,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:47,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 03:12:47,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:47,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 03:12:47,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:47,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 03:12:47,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:47,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 03:12:47,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:47,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 03:12:47,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:47,349 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-10-11 03:12:47,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:47,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035953061] [2024-10-11 03:12:47,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035953061] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:12:47,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676338050] [2024-10-11 03:12:47,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:47,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:47,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:12:47,352 INFO L229 MonitoredProcess]: Starting monitored process 29 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 03:12:47,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-10-11 03:12:47,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:47,453 INFO L255 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 03:12:47,454 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:12:47,535 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 03:12:47,535 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:12:47,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676338050] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:47,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:12:47,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 13 [2024-10-11 03:12:47,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810634117] [2024-10-11 03:12:47,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:47,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:12:47,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:47,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:12:47,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:12:47,538 INFO L87 Difference]: Start difference. First operand 21619 states and 29512 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-11 03:12:49,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:49,102 INFO L93 Difference]: Finished difference Result 42886 states and 58310 transitions. [2024-10-11 03:12:49,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 03:12:49,103 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 121 [2024-10-11 03:12:49,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:49,187 INFO L225 Difference]: With dead ends: 42886 [2024-10-11 03:12:49,187 INFO L226 Difference]: Without dead ends: 21619 [2024-10-11 03:12:49,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:12:49,226 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 190 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:49,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 130 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:12:49,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21619 states. [2024-10-11 03:12:51,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21619 to 21619. [2024-10-11 03:12:51,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21619 states, 17111 states have (on average 1.2410729939804803) internal successors, (21236), 18231 states have internal predecessors, (21236), 1839 states have call successors, (1839), 1453 states have call predecessors, (1839), 2668 states have return successors, (6341), 1966 states have call predecessors, (6341), 1839 states have call successors, (6341) [2024-10-11 03:12:51,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21619 states to 21619 states and 29416 transitions. [2024-10-11 03:12:51,124 INFO L78 Accepts]: Start accepts. Automaton has 21619 states and 29416 transitions. Word has length 121 [2024-10-11 03:12:51,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:51,124 INFO L471 AbstractCegarLoop]: Abstraction has 21619 states and 29416 transitions. [2024-10-11 03:12:51,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-11 03:12:51,125 INFO L276 IsEmpty]: Start isEmpty. Operand 21619 states and 29416 transitions. [2024-10-11 03:12:51,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-11 03:12:51,143 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:51,143 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:12:51,155 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-10-11 03:12:51,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-10-11 03:12:51,343 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:51,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:51,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1139138957, now seen corresponding path program 1 times [2024-10-11 03:12:51,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:51,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829277306] [2024-10-11 03:12:51,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:51,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:51,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:51,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:12:51,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:51,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 03:12:51,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:51,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 03:12:51,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:51,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 03:12:51,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:51,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 03:12:51,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:51,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 03:12:51,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:51,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 03:12:51,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:51,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-11 03:12:51,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:51,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 03:12:51,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:51,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-11 03:12:51,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:51,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 03:12:51,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:51,529 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-10-11 03:12:51,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:51,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829277306] [2024-10-11 03:12:51,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829277306] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:12:51,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491193436] [2024-10-11 03:12:51,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:51,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:51,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:12:51,535 INFO L229 MonitoredProcess]: Starting monitored process 30 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 03:12:51,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-10-11 03:12:51,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:51,638 INFO L255 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 03:12:51,640 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:12:51,728 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 03:12:51,728 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 03:12:51,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491193436] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:51,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 03:12:51,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 13 [2024-10-11 03:12:51,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784366822] [2024-10-11 03:12:51,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:51,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:12:51,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:51,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:12:51,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:12:51,730 INFO L87 Difference]: Start difference. First operand 21619 states and 29416 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-11 03:12:53,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:53,880 INFO L93 Difference]: Finished difference Result 42550 states and 57734 transitions. [2024-10-11 03:12:53,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 03:12:53,880 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 122 [2024-10-11 03:12:53,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:54,005 INFO L225 Difference]: With dead ends: 42550 [2024-10-11 03:12:54,006 INFO L226 Difference]: Without dead ends: 21283 [2024-10-11 03:12:54,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:12:54,060 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 257 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:54,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 118 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:12:54,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21283 states. [2024-10-11 03:12:55,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21283 to 21283. [2024-10-11 03:12:55,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21283 states, 16775 states have (on average 1.237317436661699) internal successors, (20756), 17895 states have internal predecessors, (20756), 1839 states have call successors, (1839), 1453 states have call predecessors, (1839), 2668 states have return successors, (6341), 1966 states have call predecessors, (6341), 1839 states have call successors, (6341) [2024-10-11 03:12:55,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21283 states to 21283 states and 28936 transitions. [2024-10-11 03:12:56,007 INFO L78 Accepts]: Start accepts. Automaton has 21283 states and 28936 transitions. Word has length 122 [2024-10-11 03:12:56,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:12:56,007 INFO L471 AbstractCegarLoop]: Abstraction has 21283 states and 28936 transitions. [2024-10-11 03:12:56,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-11 03:12:56,007 INFO L276 IsEmpty]: Start isEmpty. Operand 21283 states and 28936 transitions. [2024-10-11 03:12:56,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-11 03:12:56,025 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:12:56,025 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:12:56,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-10-11 03:12:56,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:12:56,226 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:12:56,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:12:56,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1422742400, now seen corresponding path program 1 times [2024-10-11 03:12:56,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:12:56,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566956460] [2024-10-11 03:12:56,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:12:56,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:12:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:56,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:12:56,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:56,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 03:12:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:56,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 03:12:56,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:56,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 03:12:56,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:56,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 03:12:56,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:56,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 03:12:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:56,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 03:12:56,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:56,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 03:12:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:56,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 03:12:56,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:56,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 03:12:56,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:56,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 03:12:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:12:56,457 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-10-11 03:12:56,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:12:56,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566956460] [2024-10-11 03:12:56,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566956460] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:12:56,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:12:56,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:12:56,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389580989] [2024-10-11 03:12:56,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:12:56,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:12:56,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:12:56,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:12:56,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:12:56,460 INFO L87 Difference]: Start difference. First operand 21283 states and 28936 transitions. Second operand has 7 states, 6 states have (on average 14.666666666666666) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-11 03:12:58,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:12:58,486 INFO L93 Difference]: Finished difference Result 44006 states and 59642 transitions. [2024-10-11 03:12:58,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:12:58,486 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.666666666666666) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 123 [2024-10-11 03:12:58,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:12:58,606 INFO L225 Difference]: With dead ends: 44006 [2024-10-11 03:12:58,606 INFO L226 Difference]: Without dead ends: 22928 [2024-10-11 03:12:58,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-11 03:12:58,648 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 188 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:12:58,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 201 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:12:58,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22928 states. [2024-10-11 03:13:00,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22928 to 21456. [2024-10-11 03:13:00,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21456 states, 16962 states have (on average 1.2342294540738121) internal successors, (20935), 18138 states have internal predecessors, (20935), 1769 states have call successors, (1769), 1453 states have call predecessors, (1769), 2724 states have return successors, (6225), 1888 states have call predecessors, (6225), 1769 states have call successors, (6225) [2024-10-11 03:13:00,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21456 states to 21456 states and 28929 transitions. [2024-10-11 03:13:00,748 INFO L78 Accepts]: Start accepts. Automaton has 21456 states and 28929 transitions. Word has length 123 [2024-10-11 03:13:00,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:13:00,749 INFO L471 AbstractCegarLoop]: Abstraction has 21456 states and 28929 transitions. [2024-10-11 03:13:00,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.666666666666666) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-11 03:13:00,749 INFO L276 IsEmpty]: Start isEmpty. Operand 21456 states and 28929 transitions. [2024-10-11 03:13:00,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-11 03:13:00,764 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:13:00,764 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:13:00,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-11 03:13:00,765 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:13:00,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:13:00,765 INFO L85 PathProgramCache]: Analyzing trace with hash -538832258, now seen corresponding path program 1 times [2024-10-11 03:13:00,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:13:00,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191761589] [2024-10-11 03:13:00,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:13:00,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:13:00,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:13:00,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:13:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:13:00,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 03:13:00,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:13:00,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 03:13:00,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:13:00,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 03:13:00,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:13:00,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 03:13:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:13:00,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 03:13:00,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:13:00,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 03:13:00,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:13:00,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 03:13:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:13:00,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 03:13:00,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:13:00,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 03:13:00,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:13:00,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 03:13:00,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:13:00,927 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-10-11 03:13:00,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:13:00,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191761589] [2024-10-11 03:13:00,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191761589] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:13:00,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527508800] [2024-10-11 03:13:00,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:13:00,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:13:00,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:13:00,929 INFO L229 MonitoredProcess]: Starting monitored process 31 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 03:13:00,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-10-11 03:13:01,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:13:01,033 INFO L255 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 03:13:01,035 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:13:01,143 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 30 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 03:13:01,144 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:13:01,351 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 5 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-11 03:13:01,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527508800] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:13:01,351 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:13:01,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 13 [2024-10-11 03:13:01,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048355422] [2024-10-11 03:13:01,352 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:13:01,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 03:13:01,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:13:01,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 03:13:01,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:13:01,353 INFO L87 Difference]: Start difference. First operand 21456 states and 28929 transitions. Second operand has 13 states, 13 states have (on average 14.23076923076923) internal successors, (185), 10 states have internal predecessors, (185), 5 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) [2024-10-11 03:13:05,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:13:05,758 INFO L93 Difference]: Finished difference Result 48244 states and 65468 transitions. [2024-10-11 03:13:05,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2024-10-11 03:13:05,759 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 14.23076923076923) internal successors, (185), 10 states have internal predecessors, (185), 5 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) Word has length 123 [2024-10-11 03:13:05,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:13:05,865 INFO L225 Difference]: With dead ends: 48244 [2024-10-11 03:13:05,865 INFO L226 Difference]: Without dead ends: 26957 [2024-10-11 03:13:05,912 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 295 SyntacticMatches, 4 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1732 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=912, Invalid=4058, Unknown=0, NotChecked=0, Total=4970 [2024-10-11 03:13:05,913 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 3296 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 418 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3312 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 1693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 418 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-11 03:13:05,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3312 Valid, 366 Invalid, 1693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [418 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-11 03:13:05,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26957 states.