./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/transmitter.11.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/transmitter.11.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 940a677bfde7dbbc79e036121bd0ec6fd3518c0f58a02d336e5d42fafb098792 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 03:15:59,338 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 03:15:59,395 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 03:15:59,400 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 03:15:59,400 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 03:15:59,422 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 03:15:59,422 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 03:15:59,422 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 03:15:59,423 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 03:15:59,426 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 03:15:59,426 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 03:15:59,426 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 03:15:59,427 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 03:15:59,428 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 03:15:59,428 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 03:15:59,428 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 03:15:59,429 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 03:15:59,429 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 03:15:59,429 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 03:15:59,431 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 03:15:59,431 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 03:15:59,433 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 03:15:59,433 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 03:15:59,433 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 03:15:59,433 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 03:15:59,433 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 03:15:59,433 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 03:15:59,434 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 03:15:59,434 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 03:15:59,434 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 03:15:59,434 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 03:15:59,434 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 03:15:59,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:15:59,435 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 03:15:59,435 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 03:15:59,435 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 03:15:59,435 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 03:15:59,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 03:15:59,435 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 03:15:59,436 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 03:15:59,436 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 03:15:59,437 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 03:15:59,437 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 940a677bfde7dbbc79e036121bd0ec6fd3518c0f58a02d336e5d42fafb098792 [2024-10-11 03:15:59,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 03:15:59,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 03:15:59,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 03:15:59,705 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 03:15:59,705 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 03:15:59,707 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.11.cil.c [2024-10-11 03:16:01,151 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 03:16:01,352 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 03:16:01,353 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.11.cil.c [2024-10-11 03:16:01,363 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/e85e9bea3/6612ff07e878450891f08c544f608ca1/FLAG720e286b0 [2024-10-11 03:16:01,379 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/e85e9bea3/6612ff07e878450891f08c544f608ca1 [2024-10-11 03:16:01,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 03:16:01,382 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 03:16:01,386 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 03:16:01,386 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 03:16:01,390 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 03:16:01,391 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:16:01" (1/1) ... [2024-10-11 03:16:01,391 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@335e0abb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:16:01, skipping insertion in model container [2024-10-11 03:16:01,392 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:16:01" (1/1) ... [2024-10-11 03:16:01,424 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 03:16:01,560 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/transmitter.11.cil.c[706,719] [2024-10-11 03:16:01,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:16:01,750 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 03:16:01,758 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/transmitter.11.cil.c[706,719] [2024-10-11 03:16:01,799 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:16:01,817 INFO L204 MainTranslator]: Completed translation [2024-10-11 03:16:01,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:16:01 WrapperNode [2024-10-11 03:16:01,818 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 03:16:01,819 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 03:16:01,819 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 03:16:01,819 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 03:16:01,825 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:16:01" (1/1) ... [2024-10-11 03:16:01,835 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:16:01" (1/1) ... [2024-10-11 03:16:01,879 INFO L138 Inliner]: procedures = 50, calls = 63, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 800 [2024-10-11 03:16:01,880 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 03:16:01,881 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 03:16:01,881 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 03:16:01,881 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 03:16:01,894 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:16:01" (1/1) ... [2024-10-11 03:16:01,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:16:01" (1/1) ... [2024-10-11 03:16:01,908 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:16:01" (1/1) ... [2024-10-11 03:16:01,923 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 03:16:01,923 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:16:01" (1/1) ... [2024-10-11 03:16:01,923 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:16:01" (1/1) ... [2024-10-11 03:16:01,931 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:16:01" (1/1) ... [2024-10-11 03:16:01,941 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:16:01" (1/1) ... [2024-10-11 03:16:01,944 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:16:01" (1/1) ... [2024-10-11 03:16:01,946 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:16:01" (1/1) ... [2024-10-11 03:16:01,949 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 03:16:01,950 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 03:16:01,950 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 03:16:01,950 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 03:16:01,951 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:16:01" (1/1) ... [2024-10-11 03:16:01,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:16:01,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:16:01,984 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 03:16:01,991 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 03:16:02,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 03:16:02,034 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-11 03:16:02,034 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-11 03:16:02,034 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-11 03:16:02,034 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-11 03:16:02,034 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-11 03:16:02,035 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-11 03:16:02,035 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-11 03:16:02,035 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-11 03:16:02,035 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-11 03:16:02,035 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-11 03:16:02,035 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-11 03:16:02,035 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-11 03:16:02,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 03:16:02,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 03:16:02,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 03:16:02,133 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 03:16:02,135 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 03:16:02,771 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2024-10-11 03:16:02,772 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 03:16:02,840 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 03:16:02,840 INFO L314 CfgBuilder]: Removed 15 assume(true) statements. [2024-10-11 03:16:02,840 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:16:02 BoogieIcfgContainer [2024-10-11 03:16:02,841 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 03:16:02,842 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 03:16:02,842 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 03:16:02,847 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 03:16:02,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:16:01" (1/3) ... [2024-10-11 03:16:02,854 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66a98f96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:16:02, skipping insertion in model container [2024-10-11 03:16:02,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:16:01" (2/3) ... [2024-10-11 03:16:02,854 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66a98f96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:16:02, skipping insertion in model container [2024-10-11 03:16:02,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:16:02" (3/3) ... [2024-10-11 03:16:02,856 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.11.cil.c [2024-10-11 03:16:02,870 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 03:16:02,870 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 03:16:02,984 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 03:16:02,990 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;@7bdd06c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 03:16:02,991 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 03:16:02,997 INFO L276 IsEmpty]: Start isEmpty. Operand has 320 states, 288 states have (on average 1.7361111111111112) internal successors, (500), 290 states have internal predecessors, (500), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-11 03:16:03,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-11 03:16:03,018 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:16:03,019 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:16:03,020 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:16:03,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:16:03,032 INFO L85 PathProgramCache]: Analyzing trace with hash -342489240, now seen corresponding path program 1 times [2024-10-11 03:16:03,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:16:03,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869131610] [2024-10-11 03:16:03,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:16:03,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:16:03,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:03,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:16:03,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:03,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:16:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:03,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 03:16:03,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:03,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 03:16:03,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:03,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 03:16:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:03,820 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 03:16:03,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:16:03,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869131610] [2024-10-11 03:16:03,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869131610] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:16:03,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:16:03,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:16:03,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116535692] [2024-10-11 03:16:03,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:16:03,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:16:03,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:16:03,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:16:03,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:16:03,864 INFO L87 Difference]: Start difference. First operand has 320 states, 288 states have (on average 1.7361111111111112) internal successors, (500), 290 states have internal predecessors, (500), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 3 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:06,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:16:06,029 INFO L93 Difference]: Finished difference Result 750 states and 1292 transitions. [2024-10-11 03:16:06,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:16:06,032 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 3 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 158 [2024-10-11 03:16:06,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:16:06,043 INFO L225 Difference]: With dead ends: 750 [2024-10-11 03:16:06,043 INFO L226 Difference]: Without dead ends: 436 [2024-10-11 03:16:06,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-11 03:16:06,051 INFO L432 NwaCegarLoop]: 271 mSDtfsCounter, 889 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 911 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 1014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-11 03:16:06,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [911 Valid, 570 Invalid, 1014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-11 03:16:06,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-10-11 03:16:06,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 318. [2024-10-11 03:16:06,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 287 states have (on average 1.6236933797909407) internal successors, (466), 288 states have internal predecessors, (466), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-11 03:16:06,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 514 transitions. [2024-10-11 03:16:06,172 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 514 transitions. Word has length 158 [2024-10-11 03:16:06,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:16:06,173 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 514 transitions. [2024-10-11 03:16:06,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 3 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:06,173 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 514 transitions. [2024-10-11 03:16:06,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-11 03:16:06,181 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:16:06,181 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:16:06,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 03:16:06,182 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:16:06,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:16:06,183 INFO L85 PathProgramCache]: Analyzing trace with hash -728351642, now seen corresponding path program 1 times [2024-10-11 03:16:06,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:16:06,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908997646] [2024-10-11 03:16:06,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:16:06,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:16:06,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:06,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:16:06,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:06,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:16:06,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:06,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 03:16:06,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:06,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 03:16:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:06,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 03:16:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:06,622 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 03:16:06,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:16:06,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908997646] [2024-10-11 03:16:06,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908997646] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:16:06,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:16:06,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:16:06,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466268448] [2024-10-11 03:16:06,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:16:06,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 03:16:06,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:16:06,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 03:16:06,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:16:06,629 INFO L87 Difference]: Start difference. First operand 318 states and 514 transitions. Second operand has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:09,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:16:09,107 INFO L93 Difference]: Finished difference Result 1172 states and 1948 transitions. [2024-10-11 03:16:09,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 03:16:09,108 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 158 [2024-10-11 03:16:09,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:16:09,113 INFO L225 Difference]: With dead ends: 1172 [2024-10-11 03:16:09,113 INFO L226 Difference]: Without dead ends: 871 [2024-10-11 03:16:09,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:16:09,115 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 1341 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 2081 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1358 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 2182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 2081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:16:09,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1358 Valid, 958 Invalid, 2182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 2081 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-11 03:16:09,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2024-10-11 03:16:09,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 636. [2024-10-11 03:16:09,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 579 states have (on average 1.6303972366148531) internal successors, (944), 581 states have internal predecessors, (944), 43 states have call successors, (43), 12 states have call predecessors, (43), 13 states have return successors, (46), 43 states have call predecessors, (46), 43 states have call successors, (46) [2024-10-11 03:16:09,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 1033 transitions. [2024-10-11 03:16:09,193 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 1033 transitions. Word has length 158 [2024-10-11 03:16:09,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:16:09,194 INFO L471 AbstractCegarLoop]: Abstraction has 636 states and 1033 transitions. [2024-10-11 03:16:09,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:09,199 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 1033 transitions. [2024-10-11 03:16:09,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-11 03:16:09,201 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:16:09,202 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:16:09,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 03:16:09,202 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:16:09,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:16:09,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1994676027, now seen corresponding path program 1 times [2024-10-11 03:16:09,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:16:09,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427925336] [2024-10-11 03:16:09,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:16:09,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:16:09,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:09,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:16:09,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:09,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:16:09,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:09,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 03:16:09,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:09,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 03:16:09,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:09,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 03:16:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:09,542 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 03:16:09,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:16:09,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427925336] [2024-10-11 03:16:09,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427925336] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:16:09,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:16:09,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:16:09,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039389816] [2024-10-11 03:16:09,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:16:09,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:16:09,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:16:09,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:16:09,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:16:09,546 INFO L87 Difference]: Start difference. First operand 636 states and 1033 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:14,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:16:14,073 INFO L93 Difference]: Finished difference Result 2084 states and 3435 transitions. [2024-10-11 03:16:14,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 03:16:14,074 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 158 [2024-10-11 03:16:14,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:16:14,082 INFO L225 Difference]: With dead ends: 2084 [2024-10-11 03:16:14,082 INFO L226 Difference]: Without dead ends: 1465 [2024-10-11 03:16:14,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-11 03:16:14,086 INFO L432 NwaCegarLoop]: 445 mSDtfsCounter, 1472 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 4233 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 1841 SdHoareTripleChecker+Invalid, 4292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 4233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-10-11 03:16:14,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 1841 Invalid, 4292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 4233 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-10-11 03:16:14,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1465 states. [2024-10-11 03:16:14,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1465 to 930. [2024-10-11 03:16:14,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 930 states, 847 states have (on average 1.6221959858323494) internal successors, (1374), 850 states have internal predecessors, (1374), 62 states have call successors, (62), 18 states have call predecessors, (62), 20 states have return successors, (67), 63 states have call predecessors, (67), 62 states have call successors, (67) [2024-10-11 03:16:14,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1503 transitions. [2024-10-11 03:16:14,213 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1503 transitions. Word has length 158 [2024-10-11 03:16:14,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:16:14,214 INFO L471 AbstractCegarLoop]: Abstraction has 930 states and 1503 transitions. [2024-10-11 03:16:14,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:14,218 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1503 transitions. [2024-10-11 03:16:14,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-11 03:16:14,221 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:16:14,221 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:16:14,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 03:16:14,221 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:16:14,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:16:14,222 INFO L85 PathProgramCache]: Analyzing trace with hash 164408067, now seen corresponding path program 1 times [2024-10-11 03:16:14,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:16:14,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249085873] [2024-10-11 03:16:14,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:16:14,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:16:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:14,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:16:14,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:14,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:16:14,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:14,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 03:16:14,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:14,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 03:16:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:14,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 03:16:14,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:14,664 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 03:16:14,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:16:14,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249085873] [2024-10-11 03:16:14,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249085873] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:16:14,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:16:14,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:16:14,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120423454] [2024-10-11 03:16:14,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:16:14,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:16:14,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:16:14,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:16:14,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:16:14,667 INFO L87 Difference]: Start difference. First operand 930 states and 1503 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:19,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:16:19,475 INFO L93 Difference]: Finished difference Result 3214 states and 5285 transitions. [2024-10-11 03:16:19,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 03:16:19,476 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 158 [2024-10-11 03:16:19,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:16:19,487 INFO L225 Difference]: With dead ends: 3214 [2024-10-11 03:16:19,487 INFO L226 Difference]: Without dead ends: 2301 [2024-10-11 03:16:19,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-11 03:16:19,491 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 1470 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 4229 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1487 SdHoareTripleChecker+Valid, 1839 SdHoareTripleChecker+Invalid, 4290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 4229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-10-11 03:16:19,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1487 Valid, 1839 Invalid, 4290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 4229 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-10-11 03:16:19,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2301 states. [2024-10-11 03:16:19,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2301 to 1519. [2024-10-11 03:16:19,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1384 states have (on average 1.614884393063584) internal successors, (2235), 1389 states have internal predecessors, (2235), 100 states have call successors, (100), 30 states have call predecessors, (100), 34 states have return successors, (113), 103 states have call predecessors, (113), 100 states have call successors, (113) [2024-10-11 03:16:19,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 2448 transitions. [2024-10-11 03:16:19,599 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 2448 transitions. Word has length 158 [2024-10-11 03:16:19,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:16:19,599 INFO L471 AbstractCegarLoop]: Abstraction has 1519 states and 2448 transitions. [2024-10-11 03:16:19,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:19,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 2448 transitions. [2024-10-11 03:16:19,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-11 03:16:19,602 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:16:19,602 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:16:19,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 03:16:19,603 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:16:19,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:16:19,603 INFO L85 PathProgramCache]: Analyzing trace with hash 234055941, now seen corresponding path program 1 times [2024-10-11 03:16:19,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:16:19,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014935316] [2024-10-11 03:16:19,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:16:19,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:16:19,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:19,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:16:19,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:19,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:16:19,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:19,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 03:16:19,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:19,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 03:16:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:19,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 03:16:19,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:19,837 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 03:16:19,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:16:19,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014935316] [2024-10-11 03:16:19,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014935316] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:16:19,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:16:19,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:16:19,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424155955] [2024-10-11 03:16:19,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:16:19,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:16:19,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:16:19,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:16:19,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:16:19,839 INFO L87 Difference]: Start difference. First operand 1519 states and 2448 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:21,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:16:21,593 INFO L93 Difference]: Finished difference Result 3651 states and 5990 transitions. [2024-10-11 03:16:21,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:16:21,593 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 158 [2024-10-11 03:16:21,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:16:21,602 INFO L225 Difference]: With dead ends: 3651 [2024-10-11 03:16:21,602 INFO L226 Difference]: Without dead ends: 2149 [2024-10-11 03:16:21,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:16:21,608 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 1122 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 1557 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 1642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-11 03:16:21,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1140 Valid, 785 Invalid, 1642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1557 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-11 03:16:21,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2149 states. [2024-10-11 03:16:21,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2149 to 1519. [2024-10-11 03:16:21,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1384 states have (on average 1.611271676300578) internal successors, (2230), 1389 states have internal predecessors, (2230), 100 states have call successors, (100), 30 states have call predecessors, (100), 34 states have return successors, (113), 103 states have call predecessors, (113), 100 states have call successors, (113) [2024-10-11 03:16:21,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 2443 transitions. [2024-10-11 03:16:21,731 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 2443 transitions. Word has length 158 [2024-10-11 03:16:21,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:16:21,731 INFO L471 AbstractCegarLoop]: Abstraction has 1519 states and 2443 transitions. [2024-10-11 03:16:21,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:21,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 2443 transitions. [2024-10-11 03:16:21,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-11 03:16:21,734 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:16:21,735 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:16:21,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 03:16:21,735 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:16:21,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:16:21,736 INFO L85 PathProgramCache]: Analyzing trace with hash 651944643, now seen corresponding path program 1 times [2024-10-11 03:16:21,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:16:21,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561774751] [2024-10-11 03:16:21,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:16:21,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:16:21,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:21,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:16:21,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:21,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:16:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:21,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 03:16:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:21,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 03:16:21,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:21,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 03:16:21,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:21,993 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 03:16:21,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:16:21,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561774751] [2024-10-11 03:16:21,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561774751] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:16:21,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:16:21,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:16:21,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640101767] [2024-10-11 03:16:21,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:16:21,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:16:21,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:16:21,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:16:21,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:16:21,995 INFO L87 Difference]: Start difference. First operand 1519 states and 2443 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:23,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:16:23,582 INFO L93 Difference]: Finished difference Result 3645 states and 5964 transitions. [2024-10-11 03:16:23,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:16:23,582 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 158 [2024-10-11 03:16:23,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:16:23,592 INFO L225 Difference]: With dead ends: 3645 [2024-10-11 03:16:23,592 INFO L226 Difference]: Without dead ends: 2143 [2024-10-11 03:16:23,597 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:16:23,598 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 1120 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 1543 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 1628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:16:23,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1138 Valid, 785 Invalid, 1628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1543 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-11 03:16:23,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2143 states. [2024-10-11 03:16:23,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2143 to 1519. [2024-10-11 03:16:23,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1384 states have (on average 1.6076589595375723) internal successors, (2225), 1389 states have internal predecessors, (2225), 100 states have call successors, (100), 30 states have call predecessors, (100), 34 states have return successors, (113), 103 states have call predecessors, (113), 100 states have call successors, (113) [2024-10-11 03:16:23,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 2438 transitions. [2024-10-11 03:16:23,695 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 2438 transitions. Word has length 158 [2024-10-11 03:16:23,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:16:23,696 INFO L471 AbstractCegarLoop]: Abstraction has 1519 states and 2438 transitions. [2024-10-11 03:16:23,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:23,696 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 2438 transitions. [2024-10-11 03:16:23,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-11 03:16:23,699 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:16:23,699 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:16:23,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 03:16:23,700 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:16:23,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:16:23,700 INFO L85 PathProgramCache]: Analyzing trace with hash 2050898245, now seen corresponding path program 1 times [2024-10-11 03:16:23,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:16:23,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389688830] [2024-10-11 03:16:23,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:16:23,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:16:23,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:23,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:16:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:23,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:16:23,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:23,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 03:16:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:23,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 03:16:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:23,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 03:16:23,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:23,946 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 03:16:23,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:16:23,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389688830] [2024-10-11 03:16:23,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389688830] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:16:23,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:16:23,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:16:23,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500924362] [2024-10-11 03:16:23,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:16:23,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:16:23,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:16:23,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:16:23,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:16:23,948 INFO L87 Difference]: Start difference. First operand 1519 states and 2438 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:25,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:16:25,277 INFO L93 Difference]: Finished difference Result 3638 states and 5936 transitions. [2024-10-11 03:16:25,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:16:25,277 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 158 [2024-10-11 03:16:25,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:16:25,292 INFO L225 Difference]: With dead ends: 3638 [2024-10-11 03:16:25,292 INFO L226 Difference]: Without dead ends: 2136 [2024-10-11 03:16:25,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:16:25,296 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 1124 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 1524 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 1609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:16:25,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1142 Valid, 785 Invalid, 1609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1524 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-11 03:16:25,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2136 states. [2024-10-11 03:16:25,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2136 to 1519. [2024-10-11 03:16:25,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1384 states have (on average 1.6040462427745665) internal successors, (2220), 1389 states have internal predecessors, (2220), 100 states have call successors, (100), 30 states have call predecessors, (100), 34 states have return successors, (113), 103 states have call predecessors, (113), 100 states have call successors, (113) [2024-10-11 03:16:25,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 2433 transitions. [2024-10-11 03:16:25,391 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 2433 transitions. Word has length 158 [2024-10-11 03:16:25,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:16:25,394 INFO L471 AbstractCegarLoop]: Abstraction has 1519 states and 2433 transitions. [2024-10-11 03:16:25,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:25,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 2433 transitions. [2024-10-11 03:16:25,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-11 03:16:25,398 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:16:25,398 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:16:25,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 03:16:25,399 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:16:25,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:16:25,399 INFO L85 PathProgramCache]: Analyzing trace with hash 433457795, now seen corresponding path program 1 times [2024-10-11 03:16:25,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:16:25,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451456640] [2024-10-11 03:16:25,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:16:25,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:16:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:25,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:16:25,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:25,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:16:25,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:25,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 03:16:25,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:25,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 03:16:25,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:25,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 03:16:25,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:25,617 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 03:16:25,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:16:25,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451456640] [2024-10-11 03:16:25,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451456640] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:16:25,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:16:25,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:16:25,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532487282] [2024-10-11 03:16:25,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:16:25,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:16:25,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:16:25,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:16:25,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:16:25,619 INFO L87 Difference]: Start difference. First operand 1519 states and 2433 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:27,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:16:27,236 INFO L93 Difference]: Finished difference Result 3626 states and 5898 transitions. [2024-10-11 03:16:27,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:16:27,236 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 158 [2024-10-11 03:16:27,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:16:27,244 INFO L225 Difference]: With dead ends: 3626 [2024-10-11 03:16:27,244 INFO L226 Difference]: Without dead ends: 2124 [2024-10-11 03:16:27,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:16:27,250 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 1041 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 1566 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 1628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:16:27,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 934 Invalid, 1628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1566 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-11 03:16:27,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2124 states. [2024-10-11 03:16:27,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2124 to 1519. [2024-10-11 03:16:27,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1384 states have (on average 1.6004335260115607) internal successors, (2215), 1389 states have internal predecessors, (2215), 100 states have call successors, (100), 30 states have call predecessors, (100), 34 states have return successors, (113), 103 states have call predecessors, (113), 100 states have call successors, (113) [2024-10-11 03:16:27,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 2428 transitions. [2024-10-11 03:16:27,355 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 2428 transitions. Word has length 158 [2024-10-11 03:16:27,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:16:27,355 INFO L471 AbstractCegarLoop]: Abstraction has 1519 states and 2428 transitions. [2024-10-11 03:16:27,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:27,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 2428 transitions. [2024-10-11 03:16:27,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-11 03:16:27,359 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:16:27,359 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:16:27,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 03:16:27,359 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:16:27,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:16:27,360 INFO L85 PathProgramCache]: Analyzing trace with hash 722277185, now seen corresponding path program 1 times [2024-10-11 03:16:27,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:16:27,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752273937] [2024-10-11 03:16:27,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:16:27,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:16:27,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:27,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:16:27,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:27,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:16:27,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:27,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 03:16:27,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:27,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 03:16:27,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:27,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 03:16:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:27,614 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 03:16:27,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:16:27,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752273937] [2024-10-11 03:16:27,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752273937] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:16:27,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:16:27,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:16:27,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398474931] [2024-10-11 03:16:27,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:16:27,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:16:27,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:16:27,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:16:27,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:16:27,617 INFO L87 Difference]: Start difference. First operand 1519 states and 2428 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:31,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:16:31,355 INFO L93 Difference]: Finished difference Result 5348 states and 8660 transitions. [2024-10-11 03:16:31,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 03:16:31,356 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 158 [2024-10-11 03:16:31,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:16:31,380 INFO L225 Difference]: With dead ends: 5348 [2024-10-11 03:16:31,380 INFO L226 Difference]: Without dead ends: 3846 [2024-10-11 03:16:31,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-11 03:16:31,388 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 1441 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 4099 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1458 SdHoareTripleChecker+Valid, 1839 SdHoareTripleChecker+Invalid, 4160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 4099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-10-11 03:16:31,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1458 Valid, 1839 Invalid, 4160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 4099 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-10-11 03:16:31,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3846 states. [2024-10-11 03:16:31,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3846 to 2720. [2024-10-11 03:16:31,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2720 states, 2481 states have (on average 1.5929060862555422) internal successors, (3952), 2490 states have internal predecessors, (3952), 176 states have call successors, (176), 54 states have call predecessors, (176), 62 states have return successors, (211), 183 states have call predecessors, (211), 176 states have call successors, (211) [2024-10-11 03:16:31,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2720 states to 2720 states and 4339 transitions. [2024-10-11 03:16:31,586 INFO L78 Accepts]: Start accepts. Automaton has 2720 states and 4339 transitions. Word has length 158 [2024-10-11 03:16:31,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:16:31,587 INFO L471 AbstractCegarLoop]: Abstraction has 2720 states and 4339 transitions. [2024-10-11 03:16:31,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:31,587 INFO L276 IsEmpty]: Start isEmpty. Operand 2720 states and 4339 transitions. [2024-10-11 03:16:31,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-11 03:16:31,592 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:16:31,592 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:16:31,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 03:16:31,592 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:16:31,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:16:31,593 INFO L85 PathProgramCache]: Analyzing trace with hash 177404611, now seen corresponding path program 1 times [2024-10-11 03:16:31,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:16:31,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254329729] [2024-10-11 03:16:31,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:16:31,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:16:31,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:31,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:16:31,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:31,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:16:31,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:31,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 03:16:31,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:31,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 03:16:31,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:31,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 03:16:31,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:31,857 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 03:16:31,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:16:31,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254329729] [2024-10-11 03:16:31,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254329729] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:16:31,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:16:31,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:16:31,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418450115] [2024-10-11 03:16:31,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:16:31,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:16:31,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:16:31,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:16:31,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:16:31,859 INFO L87 Difference]: Start difference. First operand 2720 states and 4339 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:36,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:16:36,103 INFO L93 Difference]: Finished difference Result 9681 states and 15647 transitions. [2024-10-11 03:16:36,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 03:16:36,104 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 158 [2024-10-11 03:16:36,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:16:36,131 INFO L225 Difference]: With dead ends: 9681 [2024-10-11 03:16:36,131 INFO L226 Difference]: Without dead ends: 6978 [2024-10-11 03:16:36,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-11 03:16:36,143 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 1440 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 4086 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1457 SdHoareTripleChecker+Valid, 1839 SdHoareTripleChecker+Invalid, 4147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 4086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:16:36,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1457 Valid, 1839 Invalid, 4147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 4086 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-10-11 03:16:36,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6978 states. [2024-10-11 03:16:36,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6978 to 5119. [2024-10-11 03:16:36,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 4672 states have (on average 1.5873287671232876) internal successors, (7416), 4689 states have internal predecessors, (7416), 328 states have call successors, (328), 102 states have call predecessors, (328), 118 states have return successors, (425), 343 states have call predecessors, (425), 328 states have call successors, (425) [2024-10-11 03:16:36,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 8169 transitions. [2024-10-11 03:16:36,475 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 8169 transitions. Word has length 158 [2024-10-11 03:16:36,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:16:36,476 INFO L471 AbstractCegarLoop]: Abstraction has 5119 states and 8169 transitions. [2024-10-11 03:16:36,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:36,476 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 8169 transitions. [2024-10-11 03:16:36,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-11 03:16:36,484 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:16:36,485 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:16:36,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 03:16:36,485 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:16:36,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:16:36,486 INFO L85 PathProgramCache]: Analyzing trace with hash 852564737, now seen corresponding path program 1 times [2024-10-11 03:16:36,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:16:36,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214707080] [2024-10-11 03:16:36,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:16:36,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:16:36,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:36,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:16:36,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:36,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:16:36,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:36,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 03:16:36,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:36,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 03:16:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:36,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 03:16:36,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:36,799 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 03:16:36,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:16:36,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214707080] [2024-10-11 03:16:36,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214707080] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:16:36,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:16:36,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:16:36,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728420075] [2024-10-11 03:16:36,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:16:36,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:16:36,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:16:36,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:16:36,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:16:36,801 INFO L87 Difference]: Start difference. First operand 5119 states and 8169 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:41,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:16:41,466 INFO L93 Difference]: Finished difference Result 18338 states and 29663 transitions. [2024-10-11 03:16:41,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 03:16:41,467 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 158 [2024-10-11 03:16:41,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:16:41,520 INFO L225 Difference]: With dead ends: 18338 [2024-10-11 03:16:41,520 INFO L226 Difference]: Without dead ends: 13236 [2024-10-11 03:16:41,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-11 03:16:41,540 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 1439 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 4073 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1456 SdHoareTripleChecker+Valid, 1839 SdHoareTripleChecker+Invalid, 4134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 4073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:16:41,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1456 Valid, 1839 Invalid, 4134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 4073 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-10-11 03:16:41,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13236 states. [2024-10-11 03:16:42,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13236 to 9932. [2024-10-11 03:16:42,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9932 states, 9069 states have (on average 1.5840776270812658) internal successors, (14366), 9102 states have internal predecessors, (14366), 632 states have call successors, (632), 198 states have call predecessors, (632), 230 states have return successors, (907), 663 states have call predecessors, (907), 632 states have call successors, (907) [2024-10-11 03:16:42,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9932 states to 9932 states and 15905 transitions. [2024-10-11 03:16:42,225 INFO L78 Accepts]: Start accepts. Automaton has 9932 states and 15905 transitions. Word has length 158 [2024-10-11 03:16:42,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:16:42,225 INFO L471 AbstractCegarLoop]: Abstraction has 9932 states and 15905 transitions. [2024-10-11 03:16:42,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:42,226 INFO L276 IsEmpty]: Start isEmpty. Operand 9932 states and 15905 transitions. [2024-10-11 03:16:42,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-11 03:16:42,240 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:16:42,240 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:16:42,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 03:16:42,240 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:16:42,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:16:42,241 INFO L85 PathProgramCache]: Analyzing trace with hash -95487229, now seen corresponding path program 1 times [2024-10-11 03:16:42,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:16:42,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29931620] [2024-10-11 03:16:42,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:16:42,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:16:42,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:42,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:16:42,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:42,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:16:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:42,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 03:16:42,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:42,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 03:16:42,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:42,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 03:16:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:42,437 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 03:16:42,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:16:42,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29931620] [2024-10-11 03:16:42,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29931620] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:16:42,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:16:42,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:16:42,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898410355] [2024-10-11 03:16:42,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:16:42,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:16:42,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:16:42,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:16:42,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:16:42,439 INFO L87 Difference]: Start difference. First operand 9932 states and 15905 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:44,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:16:44,798 INFO L93 Difference]: Finished difference Result 23160 states and 37675 transitions. [2024-10-11 03:16:44,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:16:44,799 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 158 [2024-10-11 03:16:44,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:16:44,843 INFO L225 Difference]: With dead ends: 23160 [2024-10-11 03:16:44,844 INFO L226 Difference]: Without dead ends: 13245 [2024-10-11 03:16:44,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:16:44,868 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 1121 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 1551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:16:44,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1139 Valid, 785 Invalid, 1551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1466 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-11 03:16:44,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13245 states. [2024-10-11 03:16:45,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13245 to 9932. [2024-10-11 03:16:45,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9932 states, 9069 states have (on average 1.580438857646929) internal successors, (14333), 9102 states have internal predecessors, (14333), 632 states have call successors, (632), 198 states have call predecessors, (632), 230 states have return successors, (907), 663 states have call predecessors, (907), 632 states have call successors, (907) [2024-10-11 03:16:45,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9932 states to 9932 states and 15872 transitions. [2024-10-11 03:16:45,591 INFO L78 Accepts]: Start accepts. Automaton has 9932 states and 15872 transitions. Word has length 158 [2024-10-11 03:16:45,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:16:45,591 INFO L471 AbstractCegarLoop]: Abstraction has 9932 states and 15872 transitions. [2024-10-11 03:16:45,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:45,591 INFO L276 IsEmpty]: Start isEmpty. Operand 9932 states and 15872 transitions. [2024-10-11 03:16:45,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-11 03:16:45,602 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:16:45,603 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:16:45,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 03:16:45,603 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:16:45,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:16:45,603 INFO L85 PathProgramCache]: Analyzing trace with hash -680258879, now seen corresponding path program 1 times [2024-10-11 03:16:45,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:16:45,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21320941] [2024-10-11 03:16:45,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:16:45,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:16:45,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:45,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:16:45,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:45,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:16:45,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:45,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 03:16:45,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:45,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 03:16:45,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:45,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 03:16:45,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:45,809 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 03:16:45,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:16:45,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21320941] [2024-10-11 03:16:45,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21320941] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:16:45,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:16:45,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:16:45,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331538438] [2024-10-11 03:16:45,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:16:45,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:16:45,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:16:45,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:16:45,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:16:45,812 INFO L87 Difference]: Start difference. First operand 9932 states and 15872 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:51,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:16:51,893 INFO L93 Difference]: Finished difference Result 39779 states and 64379 transitions. [2024-10-11 03:16:51,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-11 03:16:51,893 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 158 [2024-10-11 03:16:51,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:16:52,016 INFO L225 Difference]: With dead ends: 39779 [2024-10-11 03:16:52,016 INFO L226 Difference]: Without dead ends: 29864 [2024-10-11 03:16:52,050 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-11 03:16:52,051 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 1523 mSDsluCounter, 1391 mSDsCounter, 0 mSdLazyCounter, 4057 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1539 SdHoareTripleChecker+Valid, 1810 SdHoareTripleChecker+Invalid, 4120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 4057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:16:52,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1539 Valid, 1810 Invalid, 4120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 4057 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-10-11 03:16:52,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29864 states. [2024-10-11 03:16:53,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29864 to 19526. [2024-10-11 03:16:53,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19526 states, 17863 states have (on average 1.5796338800873313) internal successors, (28217), 17928 states have internal predecessors, (28217), 1208 states have call successors, (1208), 390 states have call predecessors, (1208), 454 states have return successors, (2001), 1271 states have call predecessors, (2001), 1208 states have call successors, (2001) [2024-10-11 03:16:53,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19526 states to 19526 states and 31426 transitions. [2024-10-11 03:16:53,403 INFO L78 Accepts]: Start accepts. Automaton has 19526 states and 31426 transitions. Word has length 158 [2024-10-11 03:16:53,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:16:53,404 INFO L471 AbstractCegarLoop]: Abstraction has 19526 states and 31426 transitions. [2024-10-11 03:16:53,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:53,405 INFO L276 IsEmpty]: Start isEmpty. Operand 19526 states and 31426 transitions. [2024-10-11 03:16:53,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-11 03:16:53,426 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:16:53,426 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:16:53,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 03:16:53,426 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:16:53,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:16:53,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1114764477, now seen corresponding path program 1 times [2024-10-11 03:16:53,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:16:53,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422258435] [2024-10-11 03:16:53,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:16:53,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:16:53,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:53,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:16:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:53,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:16:53,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:53,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 03:16:53,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:53,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 03:16:53,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:53,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 03:16:53,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:53,705 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 03:16:53,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:16:53,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422258435] [2024-10-11 03:16:53,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422258435] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:16:53,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:16:53,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:16:53,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420700183] [2024-10-11 03:16:53,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:16:53,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:16:53,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:16:53,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:16:53,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:16:53,706 INFO L87 Difference]: Start difference. First operand 19526 states and 31426 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:56,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:16:56,929 INFO L93 Difference]: Finished difference Result 45256 states and 74026 transitions. [2024-10-11 03:16:56,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:16:56,929 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 158 [2024-10-11 03:16:56,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:16:57,042 INFO L225 Difference]: With dead ends: 45256 [2024-10-11 03:16:57,043 INFO L226 Difference]: Without dead ends: 25747 [2024-10-11 03:16:57,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:16:57,104 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 982 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 1587 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 1650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:16:57,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 934 Invalid, 1650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1587 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-11 03:16:57,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25747 states. [2024-10-11 03:16:58,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25747 to 19526. [2024-10-11 03:16:58,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19526 states, 17863 states have (on average 1.575995073615854) internal successors, (28152), 17928 states have internal predecessors, (28152), 1208 states have call successors, (1208), 390 states have call predecessors, (1208), 454 states have return successors, (2001), 1271 states have call predecessors, (2001), 1208 states have call successors, (2001) [2024-10-11 03:16:59,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19526 states to 19526 states and 31361 transitions. [2024-10-11 03:16:59,108 INFO L78 Accepts]: Start accepts. Automaton has 19526 states and 31361 transitions. Word has length 158 [2024-10-11 03:16:59,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:16:59,109 INFO L471 AbstractCegarLoop]: Abstraction has 19526 states and 31361 transitions. [2024-10-11 03:16:59,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:59,109 INFO L276 IsEmpty]: Start isEmpty. Operand 19526 states and 31361 transitions. [2024-10-11 03:16:59,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-11 03:16:59,149 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:16:59,149 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:16:59,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 03:16:59,149 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:16:59,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:16:59,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1544422783, now seen corresponding path program 1 times [2024-10-11 03:16:59,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:16:59,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034570240] [2024-10-11 03:16:59,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:16:59,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:16:59,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:59,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:16:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:59,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:16:59,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:59,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 03:16:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:59,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 03:16:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:59,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 03:16:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:59,527 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 03:16:59,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:16:59,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034570240] [2024-10-11 03:16:59,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034570240] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:16:59,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:16:59,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:16:59,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179431329] [2024-10-11 03:16:59,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:16:59,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:16:59,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:16:59,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:16:59,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:16:59,529 INFO L87 Difference]: Start difference. First operand 19526 states and 31361 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:17:08,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:17:08,339 INFO L93 Difference]: Finished difference Result 75847 states and 123407 transitions. [2024-10-11 03:17:08,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-11 03:17:08,340 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 158 [2024-10-11 03:17:08,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:17:08,577 INFO L225 Difference]: With dead ends: 75847 [2024-10-11 03:17:08,578 INFO L226 Difference]: Without dead ends: 56338 [2024-10-11 03:17:08,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-11 03:17:08,644 INFO L432 NwaCegarLoop]: 255 mSDtfsCounter, 1570 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 3521 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1586 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 3614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 3521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:17:08,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1586 Valid, 1188 Invalid, 3614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3521 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-10-11 03:17:08,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56338 states. [2024-10-11 03:17:12,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56338 to 38873. [2024-10-11 03:17:12,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38873 states, 35642 states have (on average 1.57516413220358) internal successors, (56142), 35771 states have internal predecessors, (56142), 2328 states have call successors, (2328), 774 states have call predecessors, (2328), 902 states have return successors, (4643), 2455 states have call predecessors, (4643), 2328 states have call successors, (4643) [2024-10-11 03:17:12,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38873 states to 38873 states and 63113 transitions. [2024-10-11 03:17:12,268 INFO L78 Accepts]: Start accepts. Automaton has 38873 states and 63113 transitions. Word has length 158 [2024-10-11 03:17:12,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:17:12,268 INFO L471 AbstractCegarLoop]: Abstraction has 38873 states and 63113 transitions. [2024-10-11 03:17:12,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:17:12,269 INFO L276 IsEmpty]: Start isEmpty. Operand 38873 states and 63113 transitions. [2024-10-11 03:17:12,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-11 03:17:12,318 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:17:12,318 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:17:12,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 03:17:12,319 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:17:12,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:17:12,319 INFO L85 PathProgramCache]: Analyzing trace with hash -597384897, now seen corresponding path program 1 times [2024-10-11 03:17:12,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:17:12,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354464832] [2024-10-11 03:17:12,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:17:12,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:17:12,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:17:12,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:17:12,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:17:12,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:17:12,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:17:12,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 03:17:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:17:12,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 03:17:12,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:17:12,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 03:17:12,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:17:12,768 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 03:17:12,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:17:12,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354464832] [2024-10-11 03:17:12,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354464832] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:17:12,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:17:12,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:17:12,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165302477] [2024-10-11 03:17:12,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:17:12,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:17:12,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:17:12,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:17:12,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:17:12,772 INFO L87 Difference]: Start difference. First operand 38873 states and 63113 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:17:18,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:17:18,362 INFO L93 Difference]: Finished difference Result 89320 states and 147581 transitions. [2024-10-11 03:17:18,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:17:18,362 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 158 [2024-10-11 03:17:18,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:17:18,649 INFO L225 Difference]: With dead ends: 89320 [2024-10-11 03:17:18,649 INFO L226 Difference]: Without dead ends: 50464 [2024-10-11 03:17:18,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:17:18,943 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 980 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 1553 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 1616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:17:18,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 934 Invalid, 1616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1553 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-11 03:17:18,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50464 states. [2024-10-11 03:17:22,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50464 to 38873. [2024-10-11 03:17:22,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38873 states, 35642 states have (on average 1.571544806688738) internal successors, (56013), 35771 states have internal predecessors, (56013), 2328 states have call successors, (2328), 774 states have call predecessors, (2328), 902 states have return successors, (4643), 2455 states have call predecessors, (4643), 2328 states have call successors, (4643) [2024-10-11 03:17:22,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38873 states to 38873 states and 62984 transitions. [2024-10-11 03:17:22,910 INFO L78 Accepts]: Start accepts. Automaton has 38873 states and 62984 transitions. Word has length 158 [2024-10-11 03:17:22,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:17:22,911 INFO L471 AbstractCegarLoop]: Abstraction has 38873 states and 62984 transitions. [2024-10-11 03:17:22,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:17:22,911 INFO L276 IsEmpty]: Start isEmpty. Operand 38873 states and 62984 transitions. [2024-10-11 03:17:22,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-11 03:17:22,946 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:17:22,946 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:17:22,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 03:17:22,946 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:17:22,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:17:22,947 INFO L85 PathProgramCache]: Analyzing trace with hash 264448705, now seen corresponding path program 1 times [2024-10-11 03:17:22,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:17:22,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124445679] [2024-10-11 03:17:22,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:17:22,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:17:22,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:17:23,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:17:23,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:17:23,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 03:17:23,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:17:23,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 03:17:23,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:17:23,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 03:17:23,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:17:23,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 03:17:23,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:17:23,221 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 03:17:23,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:17:23,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124445679] [2024-10-11 03:17:23,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124445679] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:17:23,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:17:23,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:17:23,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298510205] [2024-10-11 03:17:23,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:17:23,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:17:23,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:17:23,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:17:23,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:17:23,223 INFO L87 Difference]: Start difference. First operand 38873 states and 62984 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)