./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/bist_cell.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/systemc/bist_cell.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash de455e90ef2ae1a82fb7a87bbcdb07831c7ef68e47976e1b2868a3e9de47a0a2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 02:17:38,787 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 02:17:38,854 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 02:17:38,860 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 02:17:38,861 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 02:17:38,895 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 02:17:38,895 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 02:17:38,896 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 02:17:38,897 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 02:17:38,900 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 02:17:38,901 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 02:17:38,901 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 02:17:38,902 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 02:17:38,902 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 02:17:38,902 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 02:17:38,902 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 02:17:38,902 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 02:17:38,903 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 02:17:38,903 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 02:17:38,903 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 02:17:38,903 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 02:17:38,919 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 02:17:38,919 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 02:17:38,919 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 02:17:38,919 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 02:17:38,919 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 02:17:38,920 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 02:17:38,920 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 02:17:38,920 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 02:17:38,920 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 02:17:38,920 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 02:17:38,921 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 02:17:38,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:17:38,921 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 02:17:38,921 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 02:17:38,921 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 02:17:38,922 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 02:17:38,922 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 02:17:38,922 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 02:17:38,924 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 02:17:38,924 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 02:17:38,925 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 02:17:38,925 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de455e90ef2ae1a82fb7a87bbcdb07831c7ef68e47976e1b2868a3e9de47a0a2 [2024-11-22 02:17:39,168 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 02:17:39,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 02:17:39,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 02:17:39,200 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 02:17:39,200 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 02:17:39,201 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/bist_cell.cil.c [2024-11-22 02:17:40,638 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 02:17:40,863 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 02:17:40,865 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/bist_cell.cil.c [2024-11-22 02:17:40,876 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/249200751/6d3dfcff6dbc4797905deae65fec32f2/FLAG495395ab7 [2024-11-22 02:17:40,889 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/249200751/6d3dfcff6dbc4797905deae65fec32f2 [2024-11-22 02:17:40,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 02:17:40,893 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 02:17:40,895 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 02:17:40,896 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 02:17:40,901 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 02:17:40,902 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:17:40" (1/1) ... [2024-11-22 02:17:40,903 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53469c2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:40, skipping insertion in model container [2024-11-22 02:17:40,903 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:17:40" (1/1) ... [2024-11-22 02:17:40,937 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 02:17:41,120 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/bist_cell.cil.c[639,652] [2024-11-22 02:17:41,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:17:41,216 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 02:17:41,227 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/bist_cell.cil.c[639,652] [2024-11-22 02:17:41,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:17:41,272 INFO L204 MainTranslator]: Completed translation [2024-11-22 02:17:41,273 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:41 WrapperNode [2024-11-22 02:17:41,273 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 02:17:41,274 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 02:17:41,274 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 02:17:41,274 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 02:17:41,281 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:41" (1/1) ... [2024-11-22 02:17:41,288 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:41" (1/1) ... [2024-11-22 02:17:41,313 INFO L138 Inliner]: procedures = 30, calls = 30, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 229 [2024-11-22 02:17:41,313 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 02:17:41,314 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 02:17:41,314 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 02:17:41,314 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 02:17:41,324 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:41" (1/1) ... [2024-11-22 02:17:41,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:41" (1/1) ... [2024-11-22 02:17:41,327 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:41" (1/1) ... [2024-11-22 02:17:41,342 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-22 02:17:41,343 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:41" (1/1) ... [2024-11-22 02:17:41,343 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:41" (1/1) ... [2024-11-22 02:17:41,353 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:41" (1/1) ... [2024-11-22 02:17:41,365 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:41" (1/1) ... [2024-11-22 02:17:41,367 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:41" (1/1) ... [2024-11-22 02:17:41,368 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:41" (1/1) ... [2024-11-22 02:17:41,371 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 02:17:41,372 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 02:17:41,372 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 02:17:41,372 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 02:17:41,373 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:41" (1/1) ... [2024-11-22 02:17:41,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:17:41,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:17:41,413 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 02:17:41,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 02:17:41,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 02:17:41,471 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-22 02:17:41,472 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-22 02:17:41,472 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-22 02:17:41,472 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-22 02:17:41,472 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-22 02:17:41,472 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-22 02:17:41,473 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-22 02:17:41,474 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-22 02:17:41,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 02:17:41,474 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-22 02:17:41,474 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-22 02:17:41,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 02:17:41,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 02:17:41,553 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 02:17:41,557 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 02:17:41,915 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-11-22 02:17:41,915 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 02:17:41,935 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 02:17:41,935 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-22 02:17:41,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:17:41 BoogieIcfgContainer [2024-11-22 02:17:41,936 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 02:17:41,938 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 02:17:41,939 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 02:17:41,942 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 02:17:41,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:17:40" (1/3) ... [2024-11-22 02:17:41,944 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2059899e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:17:41, skipping insertion in model container [2024-11-22 02:17:41,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:17:41" (2/3) ... [2024-11-22 02:17:41,944 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2059899e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:17:41, skipping insertion in model container [2024-11-22 02:17:41,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:17:41" (3/3) ... [2024-11-22 02:17:41,946 INFO L112 eAbstractionObserver]: Analyzing ICFG bist_cell.cil.c [2024-11-22 02:17:41,959 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 02:17:41,959 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 02:17:42,026 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 02:17:42,033 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;@1cb0bdf7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 02:17:42,033 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 02:17:42,037 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 86 states have (on average 1.558139534883721) internal successors, (134), 88 states have internal predecessors, (134), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-22 02:17:42,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-22 02:17:42,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:17:42,045 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:17:42,046 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:17:42,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:17:42,050 INFO L85 PathProgramCache]: Analyzing trace with hash 129401130, now seen corresponding path program 1 times [2024-11-22 02:17:42,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:17:42,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504170876] [2024-11-22 02:17:42,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:42,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:17:42,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:42,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:17:42,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:17:42,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504170876] [2024-11-22 02:17:42,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504170876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:17:42,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:17:42,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:17:42,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571273664] [2024-11-22 02:17:42,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:17:42,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:17:42,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:17:42,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:17:42,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:17:42,504 INFO L87 Difference]: Start difference. First operand has 103 states, 86 states have (on average 1.558139534883721) internal successors, (134), 88 states have internal predecessors, (134), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 02:17:42,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:17:42,840 INFO L93 Difference]: Finished difference Result 220 states and 331 transitions. [2024-11-22 02:17:42,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 02:17:42,843 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2024-11-22 02:17:42,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:17:42,852 INFO L225 Difference]: With dead ends: 220 [2024-11-22 02:17:42,852 INFO L226 Difference]: Without dead ends: 117 [2024-11-22 02:17:42,855 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:17:42,858 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 95 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:17:42,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 412 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:17:42,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-22 02:17:42,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2024-11-22 02:17:42,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 100 states have (on average 1.5) internal successors, (150), 101 states have internal predecessors, (150), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-22 02:17:42,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 171 transitions. [2024-11-22 02:17:42,906 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 171 transitions. Word has length 42 [2024-11-22 02:17:42,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:17:42,906 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 171 transitions. [2024-11-22 02:17:42,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 02:17:42,907 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 171 transitions. [2024-11-22 02:17:42,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 02:17:42,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:17:42,912 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:17:42,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 02:17:42,912 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:17:42,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:17:42,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1179475252, now seen corresponding path program 1 times [2024-11-22 02:17:42,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:17:42,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723525994] [2024-11-22 02:17:42,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:42,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:17:42,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:43,154 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-22 02:17:43,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:17:43,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723525994] [2024-11-22 02:17:43,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723525994] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:17:43,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234085961] [2024-11-22 02:17:43,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:43,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:17:43,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:17:43,161 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:17:43,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 02:17:43,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:43,315 INFO L255 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 02:17:43,330 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:17:43,396 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-22 02:17:43,399 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:17:43,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234085961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:17:43,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:17:43,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 02:17:43,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855661045] [2024-11-22 02:17:43,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:17:43,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:17:43,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:17:43,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:17:43,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:17:43,406 INFO L87 Difference]: Start difference. First operand 117 states and 171 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 02:17:43,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:17:43,441 INFO L93 Difference]: Finished difference Result 227 states and 333 transitions. [2024-11-22 02:17:43,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:17:43,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 101 [2024-11-22 02:17:43,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:17:43,444 INFO L225 Difference]: With dead ends: 227 [2024-11-22 02:17:43,444 INFO L226 Difference]: Without dead ends: 117 [2024-11-22 02:17:43,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:17:43,446 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 128 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:17:43,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 142 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:17:43,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-22 02:17:43,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2024-11-22 02:17:43,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 100 states have (on average 1.49) internal successors, (149), 101 states have internal predecessors, (149), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-22 02:17:43,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 170 transitions. [2024-11-22 02:17:43,469 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 170 transitions. Word has length 101 [2024-11-22 02:17:43,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:17:43,470 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 170 transitions. [2024-11-22 02:17:43,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 02:17:43,471 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 170 transitions. [2024-11-22 02:17:43,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 02:17:43,476 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:17:43,476 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:17:43,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 02:17:43,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:17:43,678 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:17:43,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:17:43,680 INFO L85 PathProgramCache]: Analyzing trace with hash -779099534, now seen corresponding path program 1 times [2024-11-22 02:17:43,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:17:43,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494201326] [2024-11-22 02:17:43,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:43,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:17:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:43,851 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-22 02:17:43,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:17:43,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494201326] [2024-11-22 02:17:43,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494201326] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:17:43,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611356021] [2024-11-22 02:17:43,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:43,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:17:43,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:17:43,858 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:17:43,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 02:17:43,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:43,981 INFO L255 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 02:17:43,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:17:44,084 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-22 02:17:44,084 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:17:44,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611356021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:17:44,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:17:44,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-22 02:17:44,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22237991] [2024-11-22 02:17:44,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:17:44,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:17:44,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:17:44,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:17:44,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:17:44,090 INFO L87 Difference]: Start difference. First operand 117 states and 170 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 02:17:44,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:17:44,315 INFO L93 Difference]: Finished difference Result 356 states and 529 transitions. [2024-11-22 02:17:44,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 02:17:44,316 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 101 [2024-11-22 02:17:44,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:17:44,319 INFO L225 Difference]: With dead ends: 356 [2024-11-22 02:17:44,319 INFO L226 Difference]: Without dead ends: 248 [2024-11-22 02:17:44,320 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-22 02:17:44,321 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 240 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:17:44,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 395 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:17:44,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-11-22 02:17:44,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 233. [2024-11-22 02:17:44,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 200 states have (on average 1.485) internal successors, (297), 203 states have internal predecessors, (297), 19 states have call successors, (19), 11 states have call predecessors, (19), 13 states have return successors, (27), 20 states have call predecessors, (27), 19 states have call successors, (27) [2024-11-22 02:17:44,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 343 transitions. [2024-11-22 02:17:44,346 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 343 transitions. Word has length 101 [2024-11-22 02:17:44,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:17:44,347 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 343 transitions. [2024-11-22 02:17:44,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 02:17:44,348 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 343 transitions. [2024-11-22 02:17:44,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 02:17:44,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:17:44,354 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:17:44,363 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 02:17:44,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-22 02:17:44,555 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:17:44,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:17:44,556 INFO L85 PathProgramCache]: Analyzing trace with hash -213976846, now seen corresponding path program 1 times [2024-11-22 02:17:44,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:17:44,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284858271] [2024-11-22 02:17:44,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:44,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:17:44,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:44,647 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-22 02:17:44,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:17:44,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284858271] [2024-11-22 02:17:44,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284858271] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:17:44,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217644100] [2024-11-22 02:17:44,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:44,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:17:44,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:17:44,654 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:17:44,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 02:17:44,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:44,785 INFO L255 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 02:17:44,796 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:17:44,887 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-22 02:17:44,888 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:17:44,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217644100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:17:44,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:17:44,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-22 02:17:44,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116751030] [2024-11-22 02:17:44,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:17:44,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:17:44,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:17:44,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:17:44,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:17:44,893 INFO L87 Difference]: Start difference. First operand 233 states and 343 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 02:17:45,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:17:45,106 INFO L93 Difference]: Finished difference Result 705 states and 1058 transitions. [2024-11-22 02:17:45,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 02:17:45,107 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 101 [2024-11-22 02:17:45,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:17:45,113 INFO L225 Difference]: With dead ends: 705 [2024-11-22 02:17:45,113 INFO L226 Difference]: Without dead ends: 485 [2024-11-22 02:17:45,115 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-22 02:17:45,117 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 237 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:17:45,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 381 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:17:45,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-11-22 02:17:45,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 469. [2024-11-22 02:17:45,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 402 states have (on average 1.472636815920398) internal successors, (592), 411 states have internal predecessors, (592), 37 states have call successors, (37), 21 states have call predecessors, (37), 29 states have return successors, (71), 40 states have call predecessors, (71), 37 states have call successors, (71) [2024-11-22 02:17:45,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 700 transitions. [2024-11-22 02:17:45,177 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 700 transitions. Word has length 101 [2024-11-22 02:17:45,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:17:45,177 INFO L471 AbstractCegarLoop]: Abstraction has 469 states and 700 transitions. [2024-11-22 02:17:45,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 02:17:45,178 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 700 transitions. [2024-11-22 02:17:45,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 02:17:45,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:17:45,184 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:17:45,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 02:17:45,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:17:45,389 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:17:45,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:17:45,389 INFO L85 PathProgramCache]: Analyzing trace with hash 2077246898, now seen corresponding path program 1 times [2024-11-22 02:17:45,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:17:45,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953714496] [2024-11-22 02:17:45,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:45,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:17:45,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:45,467 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-22 02:17:45,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:17:45,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953714496] [2024-11-22 02:17:45,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953714496] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:17:45,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914787994] [2024-11-22 02:17:45,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:45,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:17:45,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:17:45,471 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:17:45,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 02:17:45,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:45,575 INFO L255 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 02:17:45,578 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:17:45,656 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-22 02:17:45,656 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:17:45,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914787994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:17:45,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:17:45,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-22 02:17:45,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513940862] [2024-11-22 02:17:45,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:17:45,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:17:45,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:17:45,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:17:45,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:17:45,659 INFO L87 Difference]: Start difference. First operand 469 states and 700 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 02:17:45,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:17:45,880 INFO L93 Difference]: Finished difference Result 1557 states and 2395 transitions. [2024-11-22 02:17:45,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 02:17:45,880 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 101 [2024-11-22 02:17:45,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:17:45,889 INFO L225 Difference]: With dead ends: 1557 [2024-11-22 02:17:45,890 INFO L226 Difference]: Without dead ends: 1109 [2024-11-22 02:17:45,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-22 02:17:45,893 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 250 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:17:45,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 425 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:17:45,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2024-11-22 02:17:45,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 1021. [2024-11-22 02:17:45,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 880 states have (on average 1.45) internal successors, (1276), 907 states have internal predecessors, (1276), 73 states have call successors, (73), 41 states have call predecessors, (73), 67 states have return successors, (201), 80 states have call predecessors, (201), 73 states have call successors, (201) [2024-11-22 02:17:45,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1550 transitions. [2024-11-22 02:17:45,975 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1550 transitions. Word has length 101 [2024-11-22 02:17:45,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:17:45,975 INFO L471 AbstractCegarLoop]: Abstraction has 1021 states and 1550 transitions. [2024-11-22 02:17:45,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 02:17:45,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1550 transitions. [2024-11-22 02:17:45,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 02:17:45,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:17:45,981 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:17:45,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-22 02:17:46,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:17:46,182 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:17:46,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:17:46,183 INFO L85 PathProgramCache]: Analyzing trace with hash -300696526, now seen corresponding path program 1 times [2024-11-22 02:17:46,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:17:46,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702652223] [2024-11-22 02:17:46,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:46,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:17:46,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:46,255 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-22 02:17:46,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:17:46,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702652223] [2024-11-22 02:17:46,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702652223] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:17:46,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94532893] [2024-11-22 02:17:46,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:46,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:17:46,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:17:46,259 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:17:46,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 02:17:46,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:46,360 INFO L255 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 02:17:46,362 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:17:46,430 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-22 02:17:46,430 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:17:46,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [94532893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:17:46,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:17:46,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-22 02:17:46,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061319556] [2024-11-22 02:17:46,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:17:46,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:17:46,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:17:46,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:17:46,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:17:46,433 INFO L87 Difference]: Start difference. First operand 1021 states and 1550 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 02:17:46,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:17:46,698 INFO L93 Difference]: Finished difference Result 3377 states and 5343 transitions. [2024-11-22 02:17:46,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 02:17:46,699 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 101 [2024-11-22 02:17:46,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:17:46,714 INFO L225 Difference]: With dead ends: 3377 [2024-11-22 02:17:46,715 INFO L226 Difference]: Without dead ends: 2393 [2024-11-22 02:17:46,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-22 02:17:46,724 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 245 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:17:46,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 409 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:17:46,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2393 states. [2024-11-22 02:17:46,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2393 to 2261. [2024-11-22 02:17:46,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2261 states, 1954 states have (on average 1.4237461617195497) internal successors, (2782), 2035 states have internal predecessors, (2782), 145 states have call successors, (145), 81 states have call predecessors, (145), 161 states have return successors, (611), 160 states have call predecessors, (611), 145 states have call successors, (611) [2024-11-22 02:17:46,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 3538 transitions. [2024-11-22 02:17:46,880 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 3538 transitions. Word has length 101 [2024-11-22 02:17:46,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:17:46,880 INFO L471 AbstractCegarLoop]: Abstraction has 2261 states and 3538 transitions. [2024-11-22 02:17:46,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 02:17:46,881 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 3538 transitions. [2024-11-22 02:17:46,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 02:17:46,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:17:46,892 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:17:46,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-22 02:17:47,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:17:47,093 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:17:47,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:17:47,093 INFO L85 PathProgramCache]: Analyzing trace with hash 38237618, now seen corresponding path program 1 times [2024-11-22 02:17:47,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:17:47,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543371996] [2024-11-22 02:17:47,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:47,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:17:47,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:47,164 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-22 02:17:47,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:17:47,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543371996] [2024-11-22 02:17:47,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543371996] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:17:47,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904713515] [2024-11-22 02:17:47,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:47,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:17:47,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:17:47,167 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:17:47,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 02:17:47,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:47,265 INFO L255 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 02:17:47,267 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:17:47,311 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:17:47,312 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:17:47,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904713515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:17:47,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:17:47,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-22 02:17:47,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565676968] [2024-11-22 02:17:47,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:17:47,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:17:47,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:17:47,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:17:47,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:17:47,314 INFO L87 Difference]: Start difference. First operand 2261 states and 3538 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 02:17:47,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:17:47,416 INFO L93 Difference]: Finished difference Result 4501 states and 6958 transitions. [2024-11-22 02:17:47,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 02:17:47,420 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 101 [2024-11-22 02:17:47,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:17:47,435 INFO L225 Difference]: With dead ends: 4501 [2024-11-22 02:17:47,435 INFO L226 Difference]: Without dead ends: 2341 [2024-11-22 02:17:47,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:17:47,442 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:17:47,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 692 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:17:47,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2341 states. [2024-11-22 02:17:47,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2341 to 2341. [2024-11-22 02:17:47,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2341 states, 2018 states have (on average 1.4103072348860257) internal successors, (2846), 2099 states have internal predecessors, (2846), 145 states have call successors, (145), 81 states have call predecessors, (145), 177 states have return successors, (643), 176 states have call predecessors, (643), 145 states have call successors, (643) [2024-11-22 02:17:47,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2341 states to 2341 states and 3634 transitions. [2024-11-22 02:17:47,607 INFO L78 Accepts]: Start accepts. Automaton has 2341 states and 3634 transitions. Word has length 101 [2024-11-22 02:17:47,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:17:47,607 INFO L471 AbstractCegarLoop]: Abstraction has 2341 states and 3634 transitions. [2024-11-22 02:17:47,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 02:17:47,608 INFO L276 IsEmpty]: Start isEmpty. Operand 2341 states and 3634 transitions. [2024-11-22 02:17:47,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 02:17:47,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:17:47,618 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:17:47,627 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 02:17:47,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:17:47,823 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:17:47,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:17:47,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1425023028, now seen corresponding path program 1 times [2024-11-22 02:17:47,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:17:47,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462455206] [2024-11-22 02:17:47,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:47,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:17:47,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:47,902 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-22 02:17:47,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:17:47,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462455206] [2024-11-22 02:17:47,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462455206] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:17:47,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797573087] [2024-11-22 02:17:47,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:47,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:17:47,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:17:47,906 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:17:47,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 02:17:48,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:48,005 INFO L255 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 02:17:48,007 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:17:48,036 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 02:17:48,036 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:17:48,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797573087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:17:48,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:17:48,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 02:17:48,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275072805] [2024-11-22 02:17:48,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:17:48,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:17:48,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:17:48,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:17:48,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:17:48,038 INFO L87 Difference]: Start difference. First operand 2341 states and 3634 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 02:17:48,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:17:48,158 INFO L93 Difference]: Finished difference Result 5110 states and 7919 transitions. [2024-11-22 02:17:48,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:17:48,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 101 [2024-11-22 02:17:48,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:17:48,175 INFO L225 Difference]: With dead ends: 5110 [2024-11-22 02:17:48,176 INFO L226 Difference]: Without dead ends: 2870 [2024-11-22 02:17:48,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:17:48,184 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 65 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:17:48,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 270 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:17:48,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2870 states. [2024-11-22 02:17:48,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2870 to 2578. [2024-11-22 02:17:48,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2578 states, 2159 states have (on average 1.3756368689207967) internal successors, (2970), 2240 states have internal predecessors, (2970), 209 states have call successors, (209), 113 states have call predecessors, (209), 209 states have return successors, (788), 256 states have call predecessors, (788), 209 states have call successors, (788) [2024-11-22 02:17:48,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2578 states to 2578 states and 3967 transitions. [2024-11-22 02:17:48,344 INFO L78 Accepts]: Start accepts. Automaton has 2578 states and 3967 transitions. Word has length 101 [2024-11-22 02:17:48,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:17:48,345 INFO L471 AbstractCegarLoop]: Abstraction has 2578 states and 3967 transitions. [2024-11-22 02:17:48,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 02:17:48,345 INFO L276 IsEmpty]: Start isEmpty. Operand 2578 states and 3967 transitions. [2024-11-22 02:17:48,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 02:17:48,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:17:48,356 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:17:48,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-22 02:17:48,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:17:48,557 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:17:48,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:17:48,557 INFO L85 PathProgramCache]: Analyzing trace with hash 457672374, now seen corresponding path program 1 times [2024-11-22 02:17:48,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:17:48,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602488961] [2024-11-22 02:17:48,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:48,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:17:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:48,618 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-22 02:17:48,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:17:48,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602488961] [2024-11-22 02:17:48,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602488961] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:17:48,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820198116] [2024-11-22 02:17:48,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:48,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:17:48,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:17:48,621 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:17:48,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-22 02:17:48,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:48,718 INFO L255 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 02:17:48,720 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:17:48,750 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-22 02:17:48,753 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:17:48,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [820198116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:17:48,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:17:48,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-22 02:17:48,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500270445] [2024-11-22 02:17:48,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:17:48,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:17:48,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:17:48,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:17:48,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:17:48,755 INFO L87 Difference]: Start difference. First operand 2578 states and 3967 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 02:17:48,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:17:48,896 INFO L93 Difference]: Finished difference Result 4978 states and 7644 transitions. [2024-11-22 02:17:48,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:17:48,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 101 [2024-11-22 02:17:48,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:17:48,910 INFO L225 Difference]: With dead ends: 4978 [2024-11-22 02:17:48,910 INFO L226 Difference]: Without dead ends: 2626 [2024-11-22 02:17:48,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:17:48,919 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:17:48,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 551 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:17:48,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2626 states. [2024-11-22 02:17:49,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2626 to 2626. [2024-11-22 02:17:49,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2626 states, 2207 states have (on average 1.3674671499773448) internal successors, (3018), 2288 states have internal predecessors, (3018), 209 states have call successors, (209), 113 states have call predecessors, (209), 209 states have return successors, (788), 256 states have call predecessors, (788), 209 states have call successors, (788) [2024-11-22 02:17:49,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2626 states to 2626 states and 4015 transitions. [2024-11-22 02:17:49,043 INFO L78 Accepts]: Start accepts. Automaton has 2626 states and 4015 transitions. Word has length 101 [2024-11-22 02:17:49,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:17:49,043 INFO L471 AbstractCegarLoop]: Abstraction has 2626 states and 4015 transitions. [2024-11-22 02:17:49,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 02:17:49,044 INFO L276 IsEmpty]: Start isEmpty. Operand 2626 states and 4015 transitions. [2024-11-22 02:17:49,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-22 02:17:49,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:17:49,055 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:17:49,063 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-22 02:17:49,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-22 02:17:49,256 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:17:49,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:17:49,257 INFO L85 PathProgramCache]: Analyzing trace with hash 2122057235, now seen corresponding path program 1 times [2024-11-22 02:17:49,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:17:49,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988406026] [2024-11-22 02:17:49,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:49,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:17:49,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:49,317 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-22 02:17:49,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:17:49,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988406026] [2024-11-22 02:17:49,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988406026] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:17:49,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557839929] [2024-11-22 02:17:49,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:49,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:17:49,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:17:49,320 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:17:49,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-22 02:17:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:49,423 INFO L255 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 02:17:49,425 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:17:49,445 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-22 02:17:49,445 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:17:49,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557839929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:17:49,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:17:49,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 02:17:49,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385339001] [2024-11-22 02:17:49,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:17:49,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:17:49,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:17:49,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:17:49,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:17:49,447 INFO L87 Difference]: Start difference. First operand 2626 states and 4015 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 02:17:49,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:17:49,586 INFO L93 Difference]: Finished difference Result 5324 states and 8539 transitions. [2024-11-22 02:17:49,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:17:49,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 104 [2024-11-22 02:17:49,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:17:49,607 INFO L225 Difference]: With dead ends: 5324 [2024-11-22 02:17:49,607 INFO L226 Difference]: Without dead ends: 2908 [2024-11-22 02:17:49,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:17:49,617 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 16 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:17:49,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 276 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:17:49,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2024-11-22 02:17:49,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 2908. [2024-11-22 02:17:49,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2908 states, 2393 states have (on average 1.3522774759715839) internal successors, (3236), 2474 states have internal predecessors, (3236), 273 states have call successors, (273), 145 states have call predecessors, (273), 241 states have return successors, (1046), 320 states have call predecessors, (1046), 273 states have call successors, (1046) [2024-11-22 02:17:49,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2908 states to 2908 states and 4555 transitions. [2024-11-22 02:17:49,763 INFO L78 Accepts]: Start accepts. Automaton has 2908 states and 4555 transitions. Word has length 104 [2024-11-22 02:17:49,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:17:49,764 INFO L471 AbstractCegarLoop]: Abstraction has 2908 states and 4555 transitions. [2024-11-22 02:17:49,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 02:17:49,764 INFO L276 IsEmpty]: Start isEmpty. Operand 2908 states and 4555 transitions. [2024-11-22 02:17:49,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-22 02:17:49,776 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:17:49,777 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:17:49,786 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-22 02:17:49,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-22 02:17:49,982 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:17:49,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:17:49,983 INFO L85 PathProgramCache]: Analyzing trace with hash 163482449, now seen corresponding path program 1 times [2024-11-22 02:17:49,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:17:49,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768663800] [2024-11-22 02:17:49,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:49,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:17:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:50,054 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-22 02:17:50,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:17:50,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768663800] [2024-11-22 02:17:50,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768663800] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:17:50,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482323454] [2024-11-22 02:17:50,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:50,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:17:50,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:17:50,058 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:17:50,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-22 02:17:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:50,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 02:17:50,159 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:17:50,261 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 02:17:50,261 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:17:50,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482323454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:17:50,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:17:50,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-22 02:17:50,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366528063] [2024-11-22 02:17:50,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:17:50,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:17:50,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:17:50,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:17:50,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:17:50,264 INFO L87 Difference]: Start difference. First operand 2908 states and 4555 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 02:17:50,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:17:50,679 INFO L93 Difference]: Finished difference Result 9208 states and 15036 transitions. [2024-11-22 02:17:50,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 02:17:50,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 104 [2024-11-22 02:17:50,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:17:50,731 INFO L225 Difference]: With dead ends: 9208 [2024-11-22 02:17:50,731 INFO L226 Difference]: Without dead ends: 6558 [2024-11-22 02:17:50,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-22 02:17:50,747 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 209 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:17:50,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 727 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:17:50,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6558 states. [2024-11-22 02:17:51,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6558 to 6458. [2024-11-22 02:17:51,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6458 states, 5429 states have (on average 1.3494197826487382) internal successors, (7326), 5688 states have internal predecessors, (7326), 481 states have call successors, (481), 257 states have call predecessors, (481), 547 states have return successors, (2540), 576 states have call predecessors, (2540), 481 states have call successors, (2540) [2024-11-22 02:17:51,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6458 states to 6458 states and 10347 transitions. [2024-11-22 02:17:51,143 INFO L78 Accepts]: Start accepts. Automaton has 6458 states and 10347 transitions. Word has length 104 [2024-11-22 02:17:51,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:17:51,143 INFO L471 AbstractCegarLoop]: Abstraction has 6458 states and 10347 transitions. [2024-11-22 02:17:51,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 02:17:51,185 INFO L276 IsEmpty]: Start isEmpty. Operand 6458 states and 10347 transitions. [2024-11-22 02:17:51,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-22 02:17:51,214 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:17:51,215 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:17:51,226 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-22 02:17:51,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-22 02:17:51,419 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:17:51,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:17:51,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1052671277, now seen corresponding path program 1 times [2024-11-22 02:17:51,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:17:51,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560130100] [2024-11-22 02:17:51,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:51,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:17:51,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:51,478 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-22 02:17:51,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:17:51,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560130100] [2024-11-22 02:17:51,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560130100] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:17:51,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454888674] [2024-11-22 02:17:51,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:51,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:17:51,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:17:51,481 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:17:51,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-22 02:17:51,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:51,582 INFO L255 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 02:17:51,584 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:17:51,630 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-22 02:17:51,630 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:17:51,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454888674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:17:51,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:17:51,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2024-11-22 02:17:51,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471530653] [2024-11-22 02:17:51,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:17:51,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:17:51,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:17:51,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:17:51,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:17:51,632 INFO L87 Difference]: Start difference. First operand 6458 states and 10347 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 02:17:52,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:17:52,102 INFO L93 Difference]: Finished difference Result 14114 states and 22261 transitions. [2024-11-22 02:17:52,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 02:17:52,103 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 104 [2024-11-22 02:17:52,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:17:52,171 INFO L225 Difference]: With dead ends: 14114 [2024-11-22 02:17:52,171 INFO L226 Difference]: Without dead ends: 7922 [2024-11-22 02:17:52,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:17:52,194 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 87 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:17:52,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 300 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:17:52,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7922 states. [2024-11-22 02:17:52,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7922 to 6458. [2024-11-22 02:17:52,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6458 states, 5429 states have (on average 1.3490513906796833) internal successors, (7324), 5688 states have internal predecessors, (7324), 481 states have call successors, (481), 257 states have call predecessors, (481), 547 states have return successors, (2540), 576 states have call predecessors, (2540), 481 states have call successors, (2540) [2024-11-22 02:17:52,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6458 states to 6458 states and 10345 transitions. [2024-11-22 02:17:52,761 INFO L78 Accepts]: Start accepts. Automaton has 6458 states and 10345 transitions. Word has length 104 [2024-11-22 02:17:52,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:17:52,762 INFO L471 AbstractCegarLoop]: Abstraction has 6458 states and 10345 transitions. [2024-11-22 02:17:52,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 02:17:52,763 INFO L276 IsEmpty]: Start isEmpty. Operand 6458 states and 10345 transitions. [2024-11-22 02:17:52,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-22 02:17:52,806 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:17:52,807 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:17:52,816 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-22 02:17:53,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-22 02:17:53,008 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:17:53,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:17:53,009 INFO L85 PathProgramCache]: Analyzing trace with hash -611500932, now seen corresponding path program 1 times [2024-11-22 02:17:53,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:17:53,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201775436] [2024-11-22 02:17:53,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:53,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:17:53,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:53,081 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-22 02:17:53,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:17:53,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201775436] [2024-11-22 02:17:53,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201775436] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:17:53,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922774625] [2024-11-22 02:17:53,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:53,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:17:53,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:17:53,084 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:17:53,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-22 02:17:53,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:53,191 INFO L255 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 02:17:53,194 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:17:53,214 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-22 02:17:53,214 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:17:53,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922774625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:17:53,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:17:53,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 02:17:53,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395672809] [2024-11-22 02:17:53,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:17:53,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:17:53,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:17:53,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:17:53,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:17:53,219 INFO L87 Difference]: Start difference. First operand 6458 states and 10345 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 02:17:53,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:17:53,521 INFO L93 Difference]: Finished difference Result 12874 states and 20913 transitions. [2024-11-22 02:17:53,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:17:53,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 107 [2024-11-22 02:17:53,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:17:53,577 INFO L225 Difference]: With dead ends: 12874 [2024-11-22 02:17:53,577 INFO L226 Difference]: Without dead ends: 6894 [2024-11-22 02:17:53,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:17:53,603 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 19 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:17:53,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 281 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:17:53,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6894 states. [2024-11-22 02:17:54,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6894 to 6894. [2024-11-22 02:17:54,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6894 states, 5721 states have (on average 1.340325117986366) internal successors, (7668), 5980 states have internal predecessors, (7668), 577 states have call successors, (577), 305 states have call predecessors, (577), 595 states have return successors, (2916), 672 states have call predecessors, (2916), 577 states have call successors, (2916) [2024-11-22 02:17:54,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6894 states to 6894 states and 11161 transitions. [2024-11-22 02:17:54,069 INFO L78 Accepts]: Start accepts. Automaton has 6894 states and 11161 transitions. Word has length 107 [2024-11-22 02:17:54,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:17:54,070 INFO L471 AbstractCegarLoop]: Abstraction has 6894 states and 11161 transitions. [2024-11-22 02:17:54,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 02:17:54,070 INFO L276 IsEmpty]: Start isEmpty. Operand 6894 states and 11161 transitions. [2024-11-22 02:17:54,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-22 02:17:54,115 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:17:54,115 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:17:54,123 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-22 02:17:54,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-22 02:17:54,316 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:17:54,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:17:54,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1264981886, now seen corresponding path program 1 times [2024-11-22 02:17:54,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:17:54,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361810495] [2024-11-22 02:17:54,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:54,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:17:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:54,392 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-22 02:17:54,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:17:54,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361810495] [2024-11-22 02:17:54,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361810495] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:17:54,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969282763] [2024-11-22 02:17:54,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:54,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:17:54,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:17:54,396 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:17:54,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-22 02:17:54,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:54,500 INFO L255 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 02:17:54,502 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:17:54,572 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 02:17:54,573 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:17:54,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969282763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:17:54,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:17:54,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-22 02:17:54,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490615248] [2024-11-22 02:17:54,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:17:54,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:17:54,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:17:54,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:17:54,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:17:54,576 INFO L87 Difference]: Start difference. First operand 6894 states and 11161 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 02:17:55,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:17:55,068 INFO L93 Difference]: Finished difference Result 13370 states and 21103 transitions. [2024-11-22 02:17:55,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 02:17:55,069 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 107 [2024-11-22 02:17:55,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:17:55,109 INFO L225 Difference]: With dead ends: 13370 [2024-11-22 02:17:55,109 INFO L226 Difference]: Without dead ends: 7018 [2024-11-22 02:17:55,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-22 02:17:55,132 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 197 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:17:55,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 695 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:17:55,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7018 states. [2024-11-22 02:17:55,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7018 to 7014. [2024-11-22 02:17:55,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7014 states, 5817 states have (on average 1.3312704143029053) internal successors, (7744), 6100 states have internal predecessors, (7744), 577 states have call successors, (577), 305 states have call predecessors, (577), 619 states have return successors, (2560), 672 states have call predecessors, (2560), 577 states have call successors, (2560) [2024-11-22 02:17:55,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7014 states to 7014 states and 10881 transitions. [2024-11-22 02:17:55,652 INFO L78 Accepts]: Start accepts. Automaton has 7014 states and 10881 transitions. Word has length 107 [2024-11-22 02:17:55,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:17:55,652 INFO L471 AbstractCegarLoop]: Abstraction has 7014 states and 10881 transitions. [2024-11-22 02:17:55,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 02:17:55,653 INFO L276 IsEmpty]: Start isEmpty. Operand 7014 states and 10881 transitions. [2024-11-22 02:17:55,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-22 02:17:55,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:17:55,697 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:17:55,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-22 02:17:55,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-22 02:17:55,899 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:17:55,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:17:55,900 INFO L85 PathProgramCache]: Analyzing trace with hash -549218888, now seen corresponding path program 2 times [2024-11-22 02:17:55,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:17:55,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725624178] [2024-11-22 02:17:55,900 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 02:17:55,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:17:55,913 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 02:17:55,913 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 02:17:55,960 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-22 02:17:55,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:17:55,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725624178] [2024-11-22 02:17:55,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725624178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:17:55,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:17:55,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:17:55,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358628536] [2024-11-22 02:17:55,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:17:55,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:17:55,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:17:55,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:17:55,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:17:55,963 INFO L87 Difference]: Start difference. First operand 7014 states and 10881 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-22 02:17:56,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:17:56,296 INFO L93 Difference]: Finished difference Result 7210 states and 11140 transitions. [2024-11-22 02:17:56,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:17:56,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 107 [2024-11-22 02:17:56,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:17:56,345 INFO L225 Difference]: With dead ends: 7210 [2024-11-22 02:17:56,345 INFO L226 Difference]: Without dead ends: 7206 [2024-11-22 02:17:56,351 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:17:56,351 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:17:56,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 553 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:17:56,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7206 states. [2024-11-22 02:17:56,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7206 to 7206. [2024-11-22 02:17:56,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7206 states, 6009 states have (on average 1.3206856382093526) internal successors, (7936), 6292 states have internal predecessors, (7936), 577 states have call successors, (577), 305 states have call predecessors, (577), 619 states have return successors, (2560), 672 states have call predecessors, (2560), 577 states have call successors, (2560) [2024-11-22 02:17:56,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7206 states to 7206 states and 11073 transitions. [2024-11-22 02:17:56,886 INFO L78 Accepts]: Start accepts. Automaton has 7206 states and 11073 transitions. Word has length 107 [2024-11-22 02:17:56,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:17:56,886 INFO L471 AbstractCegarLoop]: Abstraction has 7206 states and 11073 transitions. [2024-11-22 02:17:56,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-22 02:17:56,887 INFO L276 IsEmpty]: Start isEmpty. Operand 7206 states and 11073 transitions. [2024-11-22 02:17:56,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-22 02:17:56,910 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:17:56,910 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:17:56,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 02:17:56,910 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:17:56,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:17:56,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1225788474, now seen corresponding path program 1 times [2024-11-22 02:17:56,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:17:56,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832609919] [2024-11-22 02:17:56,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:56,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:17:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:56,967 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-22 02:17:56,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:17:56,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832609919] [2024-11-22 02:17:56,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832609919] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:17:56,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493988512] [2024-11-22 02:17:56,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:56,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:17:56,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:17:56,971 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:17:56,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-22 02:17:57,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:57,070 INFO L255 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 02:17:57,072 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:17:57,113 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 02:17:57,114 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:17:57,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493988512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:17:57,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:17:57,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-22 02:17:57,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035017504] [2024-11-22 02:17:57,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:17:57,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:17:57,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:17:57,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:17:57,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:17:57,116 INFO L87 Difference]: Start difference. First operand 7206 states and 11073 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-22 02:17:57,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:17:57,370 INFO L93 Difference]: Finished difference Result 13758 states and 20745 transitions. [2024-11-22 02:17:57,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 02:17:57,370 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 107 [2024-11-22 02:17:57,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:17:57,409 INFO L225 Difference]: With dead ends: 13758 [2024-11-22 02:17:57,409 INFO L226 Difference]: Without dead ends: 7110 [2024-11-22 02:17:57,429 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:17:57,430 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:17:57,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 692 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:17:57,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7110 states. [2024-11-22 02:17:57,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7110 to 7110. [2024-11-22 02:17:57,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7110 states, 5913 states have (on average 1.3150684931506849) internal successors, (7776), 6196 states have internal predecessors, (7776), 577 states have call successors, (577), 305 states have call predecessors, (577), 619 states have return successors, (2560), 672 states have call predecessors, (2560), 577 states have call successors, (2560) [2024-11-22 02:17:57,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7110 states to 7110 states and 10913 transitions. [2024-11-22 02:17:57,876 INFO L78 Accepts]: Start accepts. Automaton has 7110 states and 10913 transitions. Word has length 107 [2024-11-22 02:17:57,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:17:57,877 INFO L471 AbstractCegarLoop]: Abstraction has 7110 states and 10913 transitions. [2024-11-22 02:17:57,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-22 02:17:57,877 INFO L276 IsEmpty]: Start isEmpty. Operand 7110 states and 10913 transitions. [2024-11-22 02:17:57,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-22 02:17:57,901 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:17:57,902 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:17:57,911 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-22 02:17:58,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:17:58,103 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:17:58,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:17:58,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1916204999, now seen corresponding path program 1 times [2024-11-22 02:17:58,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:17:58,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543334362] [2024-11-22 02:17:58,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:58,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:17:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:58,157 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-22 02:17:58,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:17:58,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543334362] [2024-11-22 02:17:58,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543334362] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:17:58,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479028939] [2024-11-22 02:17:58,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:58,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:17:58,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:17:58,160 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:17:58,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-22 02:17:58,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:58,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 02:17:58,259 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:17:58,296 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-22 02:17:58,297 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:17:58,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479028939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:17:58,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:17:58,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2024-11-22 02:17:58,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308273702] [2024-11-22 02:17:58,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:17:58,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:17:58,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:17:58,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:17:58,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:17:58,299 INFO L87 Difference]: Start difference. First operand 7110 states and 10913 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 02:17:58,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:17:58,785 INFO L93 Difference]: Finished difference Result 15142 states and 23023 transitions. [2024-11-22 02:17:58,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 02:17:58,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 110 [2024-11-22 02:17:58,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:17:58,822 INFO L225 Difference]: With dead ends: 15142 [2024-11-22 02:17:58,823 INFO L226 Difference]: Without dead ends: 8334 [2024-11-22 02:17:58,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:17:58,839 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 75 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:17:58,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 352 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:17:58,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8334 states. [2024-11-22 02:17:59,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8334 to 7110. [2024-11-22 02:17:59,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7110 states, 5913 states have (on average 1.3143920175883645) internal successors, (7772), 6196 states have internal predecessors, (7772), 577 states have call successors, (577), 305 states have call predecessors, (577), 619 states have return successors, (2560), 672 states have call predecessors, (2560), 577 states have call successors, (2560) [2024-11-22 02:17:59,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7110 states to 7110 states and 10909 transitions. [2024-11-22 02:17:59,287 INFO L78 Accepts]: Start accepts. Automaton has 7110 states and 10909 transitions. Word has length 110 [2024-11-22 02:17:59,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:17:59,288 INFO L471 AbstractCegarLoop]: Abstraction has 7110 states and 10909 transitions. [2024-11-22 02:17:59,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 02:17:59,288 INFO L276 IsEmpty]: Start isEmpty. Operand 7110 states and 10909 transitions. [2024-11-22 02:17:59,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-22 02:17:59,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:17:59,314 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:17:59,322 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-22 02:17:59,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-22 02:17:59,517 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:17:59,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:17:59,518 INFO L85 PathProgramCache]: Analyzing trace with hash -406385611, now seen corresponding path program 1 times [2024-11-22 02:17:59,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:17:59,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858284327] [2024-11-22 02:17:59,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:59,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:17:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:59,567 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-22 02:17:59,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:17:59,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858284327] [2024-11-22 02:17:59,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858284327] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:17:59,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587587072] [2024-11-22 02:17:59,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:17:59,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:17:59,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:17:59,570 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:17:59,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-22 02:17:59,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:17:59,669 INFO L255 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 02:17:59,671 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:17:59,690 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 02:17:59,690 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:17:59,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587587072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:17:59,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:17:59,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 02:17:59,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160618637] [2024-11-22 02:17:59,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:17:59,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:17:59,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:17:59,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:17:59,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:17:59,692 INFO L87 Difference]: Start difference. First operand 7110 states and 10909 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 02:18:00,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:18:00,128 INFO L93 Difference]: Finished difference Result 14358 states and 22185 transitions. [2024-11-22 02:18:00,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:18:00,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 113 [2024-11-22 02:18:00,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:18:00,175 INFO L225 Difference]: With dead ends: 14358 [2024-11-22 02:18:00,176 INFO L226 Difference]: Without dead ends: 7774 [2024-11-22 02:18:00,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:18:00,200 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 21 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:18:00,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 283 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:18:00,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7774 states. [2024-11-22 02:18:00,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7774 to 7774. [2024-11-22 02:18:00,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7774 states, 6361 states have (on average 1.301682125451973) internal successors, (8280), 6644 states have internal predecessors, (8280), 721 states have call successors, (721), 377 states have call predecessors, (721), 691 states have return successors, (3000), 816 states have call predecessors, (3000), 721 states have call successors, (3000) [2024-11-22 02:18:00,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7774 states to 7774 states and 12001 transitions. [2024-11-22 02:18:00,934 INFO L78 Accepts]: Start accepts. Automaton has 7774 states and 12001 transitions. Word has length 113 [2024-11-22 02:18:00,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:18:00,935 INFO L471 AbstractCegarLoop]: Abstraction has 7774 states and 12001 transitions. [2024-11-22 02:18:00,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 02:18:00,935 INFO L276 IsEmpty]: Start isEmpty. Operand 7774 states and 12001 transitions. [2024-11-22 02:18:00,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-22 02:18:00,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:18:00,969 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:18:00,977 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-22 02:18:01,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-22 02:18:01,170 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:18:01,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:18:01,171 INFO L85 PathProgramCache]: Analyzing trace with hash -992661833, now seen corresponding path program 1 times [2024-11-22 02:18:01,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:18:01,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206939403] [2024-11-22 02:18:01,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:18:01,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:18:01,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:18:01,239 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-22 02:18:01,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:18:01,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206939403] [2024-11-22 02:18:01,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206939403] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:18:01,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314560369] [2024-11-22 02:18:01,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:18:01,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:18:01,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:18:01,244 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:18:01,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-22 02:18:01,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:18:01,346 INFO L255 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 02:18:01,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:18:01,415 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 02:18:01,415 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:18:01,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314560369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:18:01,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:18:01,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-22 02:18:01,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207354044] [2024-11-22 02:18:01,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:18:01,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:18:01,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:18:01,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:18:01,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:18:01,418 INFO L87 Difference]: Start difference. First operand 7774 states and 12001 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 02:18:02,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:18:02,057 INFO L93 Difference]: Finished difference Result 15082 states and 22658 transitions. [2024-11-22 02:18:02,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 02:18:02,058 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 113 [2024-11-22 02:18:02,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:18:02,109 INFO L225 Difference]: With dead ends: 15082 [2024-11-22 02:18:02,110 INFO L226 Difference]: Without dead ends: 7922 [2024-11-22 02:18:02,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-22 02:18:02,137 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 194 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:18:02,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 650 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:18:02,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7922 states. [2024-11-22 02:18:02,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7922 to 7918. [2024-11-22 02:18:02,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7918 states, 6469 states have (on average 1.2916988715411966) internal successors, (8356), 6788 states have internal predecessors, (8356), 721 states have call successors, (721), 377 states have call predecessors, (721), 727 states have return successors, (2680), 816 states have call predecessors, (2680), 721 states have call successors, (2680) [2024-11-22 02:18:02,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7918 states to 7918 states and 11757 transitions. [2024-11-22 02:18:02,729 INFO L78 Accepts]: Start accepts. Automaton has 7918 states and 11757 transitions. Word has length 113 [2024-11-22 02:18:02,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:18:02,730 INFO L471 AbstractCegarLoop]: Abstraction has 7918 states and 11757 transitions. [2024-11-22 02:18:02,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 02:18:02,730 INFO L276 IsEmpty]: Start isEmpty. Operand 7918 states and 11757 transitions. [2024-11-22 02:18:02,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-22 02:18:02,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:18:02,758 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:18:02,767 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-22 02:18:02,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:18:02,959 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:18:02,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:18:02,959 INFO L85 PathProgramCache]: Analyzing trace with hash -38721675, now seen corresponding path program 1 times [2024-11-22 02:18:02,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:18:02,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788720846] [2024-11-22 02:18:02,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:18:02,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:18:02,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:18:03,028 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-22 02:18:03,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:18:03,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788720846] [2024-11-22 02:18:03,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788720846] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:18:03,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671921904] [2024-11-22 02:18:03,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:18:03,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:18:03,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:18:03,031 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:18:03,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-22 02:18:03,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:18:03,133 INFO L255 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 02:18:03,136 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:18:03,177 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-22 02:18:03,177 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:18:03,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671921904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:18:03,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:18:03,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2024-11-22 02:18:03,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897849463] [2024-11-22 02:18:03,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:18:03,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:18:03,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:18:03,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:18:03,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:18:03,179 INFO L87 Difference]: Start difference. First operand 7918 states and 11757 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 02:18:03,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:18:03,677 INFO L93 Difference]: Finished difference Result 16338 states and 24119 transitions. [2024-11-22 02:18:03,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 02:18:03,678 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 113 [2024-11-22 02:18:03,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:18:03,730 INFO L225 Difference]: With dead ends: 16338 [2024-11-22 02:18:03,730 INFO L226 Difference]: Without dead ends: 8782 [2024-11-22 02:18:03,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:18:03,755 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 78 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:18:03,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 334 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:18:03,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8782 states. [2024-11-22 02:18:04,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8782 to 7918. [2024-11-22 02:18:04,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7918 states, 6469 states have (on average 1.2904622043592517) internal successors, (8348), 6788 states have internal predecessors, (8348), 721 states have call successors, (721), 377 states have call predecessors, (721), 727 states have return successors, (2680), 816 states have call predecessors, (2680), 721 states have call successors, (2680) [2024-11-22 02:18:04,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7918 states to 7918 states and 11749 transitions. [2024-11-22 02:18:04,339 INFO L78 Accepts]: Start accepts. Automaton has 7918 states and 11749 transitions. Word has length 113 [2024-11-22 02:18:04,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:18:04,340 INFO L471 AbstractCegarLoop]: Abstraction has 7918 states and 11749 transitions. [2024-11-22 02:18:04,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 02:18:04,340 INFO L276 IsEmpty]: Start isEmpty. Operand 7918 states and 11749 transitions. [2024-11-22 02:18:04,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-22 02:18:04,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:18:04,368 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:18:04,378 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-22 02:18:04,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:18:04,569 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:18:04,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:18:04,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1693209122, now seen corresponding path program 1 times [2024-11-22 02:18:04,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:18:04,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873137778] [2024-11-22 02:18:04,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:18:04,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:18:04,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:18:04,629 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-22 02:18:04,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:18:04,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873137778] [2024-11-22 02:18:04,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873137778] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:18:04,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639347825] [2024-11-22 02:18:04,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:18:04,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:18:04,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:18:04,633 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:18:04,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-22 02:18:04,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:18:04,728 INFO L255 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 02:18:04,730 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:18:04,748 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-22 02:18:04,748 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:18:04,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639347825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:18:04,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:18:04,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 02:18:04,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191393716] [2024-11-22 02:18:04,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:18:04,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:18:04,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:18:04,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:18:04,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:18:04,750 INFO L87 Difference]: Start difference. First operand 7918 states and 11749 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 02:18:05,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:18:05,025 INFO L93 Difference]: Finished difference Result 16238 states and 24098 transitions. [2024-11-22 02:18:05,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:18:05,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 116 [2024-11-22 02:18:05,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:18:05,074 INFO L225 Difference]: With dead ends: 16238 [2024-11-22 02:18:05,075 INFO L226 Difference]: Without dead ends: 8918 [2024-11-22 02:18:05,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:18:05,099 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 23 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:18:05,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 281 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:18:05,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8918 states. [2024-11-22 02:18:05,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8918 to 8918. [2024-11-22 02:18:05,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8918 states, 7145 states have (on average 1.2717984604618615) internal successors, (9087), 7464 states have internal predecessors, (9087), 937 states have call successors, (937), 485 states have call predecessors, (937), 835 states have return successors, (3216), 1032 states have call predecessors, (3216), 937 states have call successors, (3216) [2024-11-22 02:18:05,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8918 states to 8918 states and 13240 transitions. [2024-11-22 02:18:05,650 INFO L78 Accepts]: Start accepts. Automaton has 8918 states and 13240 transitions. Word has length 116 [2024-11-22 02:18:05,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:18:05,650 INFO L471 AbstractCegarLoop]: Abstraction has 8918 states and 13240 transitions. [2024-11-22 02:18:05,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 02:18:05,651 INFO L276 IsEmpty]: Start isEmpty. Operand 8918 states and 13240 transitions. [2024-11-22 02:18:05,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-22 02:18:05,683 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:18:05,683 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:18:05,693 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-22 02:18:05,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:18:05,885 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:18:05,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:18:05,886 INFO L85 PathProgramCache]: Analyzing trace with hash -265365664, now seen corresponding path program 1 times [2024-11-22 02:18:05,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:18:05,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545456917] [2024-11-22 02:18:05,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:18:05,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:18:05,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:18:05,949 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-22 02:18:05,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:18:05,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545456917] [2024-11-22 02:18:05,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545456917] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:18:05,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300723097] [2024-11-22 02:18:05,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:18:05,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:18:05,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:18:05,952 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:18:05,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-22 02:18:06,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:18:06,053 INFO L255 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 02:18:06,056 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:18:06,117 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 02:18:06,117 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:18:06,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300723097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:18:06,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:18:06,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-22 02:18:06,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121833533] [2024-11-22 02:18:06,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:18:06,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:18:06,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:18:06,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:18:06,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:18:06,120 INFO L87 Difference]: Start difference. First operand 8918 states and 13240 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 02:18:06,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:18:06,723 INFO L93 Difference]: Finished difference Result 17280 states and 24901 transitions. [2024-11-22 02:18:06,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 02:18:06,724 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 116 [2024-11-22 02:18:06,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:18:06,776 INFO L225 Difference]: With dead ends: 17280 [2024-11-22 02:18:06,776 INFO L226 Difference]: Without dead ends: 9084 [2024-11-22 02:18:06,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-22 02:18:06,800 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 189 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:18:06,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 620 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:18:06,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9084 states. [2024-11-22 02:18:07,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9084 to 9080. [2024-11-22 02:18:07,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9080 states, 7253 states have (on average 1.2596167103267613) internal successors, (9136), 7626 states have internal predecessors, (9136), 937 states have call successors, (937), 485 states have call predecessors, (937), 889 states have return successors, (2920), 1032 states have call predecessors, (2920), 937 states have call successors, (2920) [2024-11-22 02:18:07,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9080 states to 9080 states and 12993 transitions. [2024-11-22 02:18:07,357 INFO L78 Accepts]: Start accepts. Automaton has 9080 states and 12993 transitions. Word has length 116 [2024-11-22 02:18:07,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:18:07,357 INFO L471 AbstractCegarLoop]: Abstraction has 9080 states and 12993 transitions. [2024-11-22 02:18:07,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 02:18:07,357 INFO L276 IsEmpty]: Start isEmpty. Operand 9080 states and 12993 transitions. [2024-11-22 02:18:07,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-22 02:18:07,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:18:07,385 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:18:07,395 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-22 02:18:07,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-22 02:18:07,586 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:18:07,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:18:07,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1481519390, now seen corresponding path program 1 times [2024-11-22 02:18:07,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:18:07,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784181522] [2024-11-22 02:18:07,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:18:07,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:18:07,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:18:07,650 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-22 02:18:07,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:18:07,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784181522] [2024-11-22 02:18:07,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784181522] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:18:07,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212798888] [2024-11-22 02:18:07,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:18:07,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:18:07,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:18:07,653 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:18:07,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-22 02:18:07,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:18:07,750 INFO L255 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-22 02:18:07,752 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:18:07,885 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-22 02:18:07,885 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:18:07,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212798888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:18:07,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:18:07,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-22 02:18:07,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532729509] [2024-11-22 02:18:07,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:18:07,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:18:07,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:18:07,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:18:07,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:18:07,888 INFO L87 Difference]: Start difference. First operand 9080 states and 12993 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-22 02:18:08,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:18:08,666 INFO L93 Difference]: Finished difference Result 13091 states and 18408 transitions. [2024-11-22 02:18:08,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:18:08,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 116 [2024-11-22 02:18:08,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:18:08,744 INFO L225 Difference]: With dead ends: 13091 [2024-11-22 02:18:08,744 INFO L226 Difference]: Without dead ends: 13087 [2024-11-22 02:18:08,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:18:08,757 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 171 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:18:08,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 258 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:18:08,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13087 states. [2024-11-22 02:18:09,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13087 to 13039. [2024-11-22 02:18:09,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13039 states, 10550 states have (on average 1.2555450236966825) internal successors, (13246), 11053 states have internal predecessors, (13246), 1211 states have call successors, (1211), 727 states have call predecessors, (1211), 1277 states have return successors, (3884), 1354 states have call predecessors, (3884), 1211 states have call successors, (3884) [2024-11-22 02:18:09,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13039 states to 13039 states and 18341 transitions. [2024-11-22 02:18:09,977 INFO L78 Accepts]: Start accepts. Automaton has 13039 states and 18341 transitions. Word has length 116 [2024-11-22 02:18:09,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:18:09,978 INFO L471 AbstractCegarLoop]: Abstraction has 13039 states and 18341 transitions. [2024-11-22 02:18:09,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-22 02:18:09,978 INFO L276 IsEmpty]: Start isEmpty. Operand 13039 states and 18341 transitions. [2024-11-22 02:18:10,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-22 02:18:10,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:18:10,015 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:18:10,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-22 02:18:10,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-22 02:18:10,216 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:18:10,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:18:10,217 INFO L85 PathProgramCache]: Analyzing trace with hash 789408574, now seen corresponding path program 1 times [2024-11-22 02:18:10,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:18:10,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192539182] [2024-11-22 02:18:10,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:18:10,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:18:10,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:18:10,292 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-22 02:18:10,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:18:10,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192539182] [2024-11-22 02:18:10,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192539182] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:18:10,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812193355] [2024-11-22 02:18:10,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:18:10,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:18:10,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:18:10,296 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:18:10,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-22 02:18:10,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:18:10,406 INFO L255 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 02:18:10,412 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:18:10,526 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 02:18:10,527 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:18:10,770 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-22 02:18:10,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812193355] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-22 02:18:10,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-22 02:18:10,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 9 [2024-11-22 02:18:10,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681358396] [2024-11-22 02:18:10,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:18:10,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:18:10,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:18:10,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:18:10,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:18:10,773 INFO L87 Difference]: Start difference. First operand 13039 states and 18341 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 02:18:11,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:18:11,883 INFO L93 Difference]: Finished difference Result 37300 states and 52927 transitions. [2024-11-22 02:18:11,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 02:18:11,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 119 [2024-11-22 02:18:11,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:18:11,986 INFO L225 Difference]: With dead ends: 37300 [2024-11-22 02:18:11,986 INFO L226 Difference]: Without dead ends: 24371 [2024-11-22 02:18:12,043 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 231 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-22 02:18:12,045 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 166 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:18:12,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 359 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:18:12,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24371 states. [2024-11-22 02:18:13,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24371 to 23839. [2024-11-22 02:18:13,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23839 states, 19331 states have (on average 1.224871967306399) internal successors, (23678), 20451 states have internal predecessors, (23678), 1839 states have call successors, (1839), 1453 states have call predecessors, (1839), 2668 states have return successors, (6404), 1966 states have call predecessors, (6404), 1839 states have call successors, (6404) [2024-11-22 02:18:13,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23839 states to 23839 states and 31921 transitions. [2024-11-22 02:18:13,596 INFO L78 Accepts]: Start accepts. Automaton has 23839 states and 31921 transitions. Word has length 119 [2024-11-22 02:18:13,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:18:13,596 INFO L471 AbstractCegarLoop]: Abstraction has 23839 states and 31921 transitions. [2024-11-22 02:18:13,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 02:18:13,596 INFO L276 IsEmpty]: Start isEmpty. Operand 23839 states and 31921 transitions. [2024-11-22 02:18:13,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-22 02:18:13,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:18:13,616 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:18:13,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-22 02:18:13,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:18:13,817 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:18:13,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:18:13,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1598356374, now seen corresponding path program 1 times [2024-11-22 02:18:13,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:18:13,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648352087] [2024-11-22 02:18:13,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:18:13,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:18:13,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:18:13,916 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-22 02:18:13,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:18:13,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648352087] [2024-11-22 02:18:13,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648352087] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:18:13,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756065428] [2024-11-22 02:18:13,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:18:13,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:18:13,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:18:13,920 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:18:13,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-22 02:18:14,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:18:14,016 INFO L255 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 02:18:14,018 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:18:14,030 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 02:18:14,031 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:18:14,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756065428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:18:14,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:18:14,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-22 02:18:14,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573453748] [2024-11-22 02:18:14,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:18:14,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:18:14,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:18:14,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:18:14,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:18:14,033 INFO L87 Difference]: Start difference. First operand 23839 states and 31921 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-22 02:18:14,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:18:14,950 INFO L93 Difference]: Finished difference Result 47438 states and 63375 transitions. [2024-11-22 02:18:14,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:18:14,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 134 [2024-11-22 02:18:14,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:18:15,055 INFO L225 Difference]: With dead ends: 47438 [2024-11-22 02:18:15,055 INFO L226 Difference]: Without dead ends: 23983 [2024-11-22 02:18:15,101 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:18:15,101 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:18:15,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 271 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:18:15,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23983 states. [2024-11-22 02:18:16,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23983 to 23983. [2024-11-22 02:18:16,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23983 states, 19475 states have (on average 1.223209242618742) internal successors, (23822), 20595 states have internal predecessors, (23822), 1839 states have call successors, (1839), 1453 states have call predecessors, (1839), 2668 states have return successors, (6404), 1966 states have call predecessors, (6404), 1839 states have call successors, (6404) [2024-11-22 02:18:16,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23983 states to 23983 states and 32065 transitions. [2024-11-22 02:18:16,808 INFO L78 Accepts]: Start accepts. Automaton has 23983 states and 32065 transitions. Word has length 134 [2024-11-22 02:18:16,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:18:16,808 INFO L471 AbstractCegarLoop]: Abstraction has 23983 states and 32065 transitions. [2024-11-22 02:18:16,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-22 02:18:16,809 INFO L276 IsEmpty]: Start isEmpty. Operand 23983 states and 32065 transitions. [2024-11-22 02:18:16,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 02:18:16,841 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:18:16,842 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:18:16,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-22 02:18:17,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:18:17,042 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:18:17,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:18:17,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1387499683, now seen corresponding path program 1 times [2024-11-22 02:18:17,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:18:17,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491578025] [2024-11-22 02:18:17,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:18:17,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:18:17,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:18:17,265 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-22 02:18:17,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:18:17,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491578025] [2024-11-22 02:18:17,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491578025] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:18:17,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135153736] [2024-11-22 02:18:17,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:18:17,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:18:17,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:18:17,269 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:18:17,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-22 02:18:17,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:18:17,376 INFO L255 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 02:18:17,378 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:18:17,388 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 02:18:17,388 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:18:17,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135153736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:18:17,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:18:17,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-22 02:18:17,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792257956] [2024-11-22 02:18:17,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:18:17,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:18:17,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:18:17,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:18:17,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:18:17,391 INFO L87 Difference]: Start difference. First operand 23983 states and 32065 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-22 02:18:18,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:18:18,929 INFO L93 Difference]: Finished difference Result 47582 states and 63375 transitions. [2024-11-22 02:18:18,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:18:18,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 135 [2024-11-22 02:18:18,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:18:19,023 INFO L225 Difference]: With dead ends: 47582 [2024-11-22 02:18:19,023 INFO L226 Difference]: Without dead ends: 23983 [2024-11-22 02:18:19,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:18:19,074 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 3 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:18:19,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 268 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:18:19,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23983 states. [2024-11-22 02:18:20,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23983 to 23983. [2024-11-22 02:18:20,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23983 states, 19475 states have (on average 1.2158151476251604) internal successors, (23678), 20595 states have internal predecessors, (23678), 1839 states have call successors, (1839), 1453 states have call predecessors, (1839), 2668 states have return successors, (6404), 1966 states have call predecessors, (6404), 1839 states have call successors, (6404) [2024-11-22 02:18:20,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23983 states to 23983 states and 31921 transitions. [2024-11-22 02:18:20,566 INFO L78 Accepts]: Start accepts. Automaton has 23983 states and 31921 transitions. Word has length 135 [2024-11-22 02:18:20,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:18:20,566 INFO L471 AbstractCegarLoop]: Abstraction has 23983 states and 31921 transitions. [2024-11-22 02:18:20,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-22 02:18:20,567 INFO L276 IsEmpty]: Start isEmpty. Operand 23983 states and 31921 transitions. [2024-11-22 02:18:20,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 02:18:20,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:18:20,590 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:18:20,599 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-22 02:18:20,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-22 02:18:20,800 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:18:20,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:18:20,801 INFO L85 PathProgramCache]: Analyzing trace with hash 384347052, now seen corresponding path program 1 times [2024-11-22 02:18:20,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:18:20,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484987033] [2024-11-22 02:18:20,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:18:20,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:18:20,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:18:20,926 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-22 02:18:20,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:18:20,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484987033] [2024-11-22 02:18:20,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484987033] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:18:20,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825491180] [2024-11-22 02:18:20,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:18:20,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:18:20,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:18:20,929 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:18:20,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-22 02:18:21,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:18:21,041 INFO L255 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 02:18:21,044 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:18:21,167 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 02:18:21,169 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:18:21,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825491180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:18:21,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:18:21,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2024-11-22 02:18:21,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654782973] [2024-11-22 02:18:21,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:18:21,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:18:21,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:18:21,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:18:21,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:18:21,171 INFO L87 Difference]: Start difference. First operand 23983 states and 31921 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-22 02:18:22,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:18:22,994 INFO L93 Difference]: Finished difference Result 47582 states and 63087 transitions. [2024-11-22 02:18:22,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:18:22,995 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 135 [2024-11-22 02:18:22,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:18:23,098 INFO L225 Difference]: With dead ends: 47582 [2024-11-22 02:18:23,099 INFO L226 Difference]: Without dead ends: 23983 [2024-11-22 02:18:23,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:18:23,144 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 120 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:18:23,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 145 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:18:23,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23983 states. [2024-11-22 02:18:24,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23983 to 23983. [2024-11-22 02:18:24,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23983 states, 19475 states have (on average 1.2133504492939666) internal successors, (23630), 20595 states have internal predecessors, (23630), 1839 states have call successors, (1839), 1453 states have call predecessors, (1839), 2668 states have return successors, (6404), 1966 states have call predecessors, (6404), 1839 states have call successors, (6404) [2024-11-22 02:18:24,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23983 states to 23983 states and 31873 transitions. [2024-11-22 02:18:24,609 INFO L78 Accepts]: Start accepts. Automaton has 23983 states and 31873 transitions. Word has length 135 [2024-11-22 02:18:24,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:18:24,610 INFO L471 AbstractCegarLoop]: Abstraction has 23983 states and 31873 transitions. [2024-11-22 02:18:24,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-22 02:18:24,610 INFO L276 IsEmpty]: Start isEmpty. Operand 23983 states and 31873 transitions. [2024-11-22 02:18:24,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-22 02:18:24,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:18:24,633 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:18:24,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-22 02:18:24,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-22 02:18:24,833 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:18:24,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:18:24,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1063226239, now seen corresponding path program 1 times [2024-11-22 02:18:24,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:18:24,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271719879] [2024-11-22 02:18:24,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:18:24,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:18:24,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:18:24,950 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-22 02:18:24,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:18:24,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271719879] [2024-11-22 02:18:24,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271719879] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:18:24,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004736242] [2024-11-22 02:18:24,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:18:24,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:18:24,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:18:24,953 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:18:24,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-22 02:18:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:18:25,061 INFO L255 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 02:18:25,063 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:18:25,080 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 02:18:25,081 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:18:25,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004736242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:18:25,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:18:25,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-22 02:18:25,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204677536] [2024-11-22 02:18:25,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:18:25,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:18:25,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:18:25,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:18:25,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:18:25,083 INFO L87 Difference]: Start difference. First operand 23983 states and 31873 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-22 02:18:26,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:18:26,566 INFO L93 Difference]: Finished difference Result 48158 states and 63807 transitions. [2024-11-22 02:18:26,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:18:26,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 136 [2024-11-22 02:18:26,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:18:26,676 INFO L225 Difference]: With dead ends: 48158 [2024-11-22 02:18:26,676 INFO L226 Difference]: Without dead ends: 24559 [2024-11-22 02:18:26,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:18:26,727 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 10 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:18:26,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 279 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:18:26,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24559 states. [2024-11-22 02:18:28,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24559 to 24319. [2024-11-22 02:18:28,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24319 states, 19811 states have (on average 1.2145777598303973) internal successors, (24062), 20931 states have internal predecessors, (24062), 1839 states have call successors, (1839), 1453 states have call predecessors, (1839), 2668 states have return successors, (6404), 1966 states have call predecessors, (6404), 1839 states have call successors, (6404) [2024-11-22 02:18:28,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24319 states to 24319 states and 32305 transitions. [2024-11-22 02:18:28,471 INFO L78 Accepts]: Start accepts. Automaton has 24319 states and 32305 transitions. Word has length 136 [2024-11-22 02:18:28,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:18:28,472 INFO L471 AbstractCegarLoop]: Abstraction has 24319 states and 32305 transitions. [2024-11-22 02:18:28,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-22 02:18:28,472 INFO L276 IsEmpty]: Start isEmpty. Operand 24319 states and 32305 transitions. [2024-11-22 02:18:28,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-22 02:18:28,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:18:28,498 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:18:28,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-22 02:18:28,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-22 02:18:28,699 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:18:28,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:18:28,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1140127037, now seen corresponding path program 1 times [2024-11-22 02:18:28,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:18:28,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498736911] [2024-11-22 02:18:28,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:18:28,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:18:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:18:28,814 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-22 02:18:28,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:18:28,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498736911] [2024-11-22 02:18:28,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498736911] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:18:28,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444768067] [2024-11-22 02:18:28,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:18:28,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:18:28,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:18:28,818 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:18:28,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-22 02:18:28,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:18:28,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 02:18:28,930 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:18:29,040 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 02:18:29,040 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:18:29,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444768067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:18:29,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:18:29,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2024-11-22 02:18:29,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108984424] [2024-11-22 02:18:29,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:18:29,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:18:29,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:18:29,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:18:29,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-22 02:18:29,042 INFO L87 Difference]: Start difference. First operand 24319 states and 32305 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-22 02:18:30,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:18:30,989 INFO L93 Difference]: Finished difference Result 48254 states and 63855 transitions. [2024-11-22 02:18:30,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:18:30,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 136 [2024-11-22 02:18:30,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:18:31,103 INFO L225 Difference]: With dead ends: 48254 [2024-11-22 02:18:31,103 INFO L226 Difference]: Without dead ends: 24319 [2024-11-22 02:18:31,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-22 02:18:31,144 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 301 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:18:31,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 162 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:18:31,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24319 states. [2024-11-22 02:18:32,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24319 to 24319. [2024-11-22 02:18:32,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24319 states, 19811 states have (on average 1.209731967088991) internal successors, (23966), 20931 states have internal predecessors, (23966), 1839 states have call successors, (1839), 1453 states have call predecessors, (1839), 2668 states have return successors, (6404), 1966 states have call predecessors, (6404), 1839 states have call successors, (6404) [2024-11-22 02:18:32,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24319 states to 24319 states and 32209 transitions. [2024-11-22 02:18:32,806 INFO L78 Accepts]: Start accepts. Automaton has 24319 states and 32209 transitions. Word has length 136 [2024-11-22 02:18:32,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:18:32,806 INFO L471 AbstractCegarLoop]: Abstraction has 24319 states and 32209 transitions. [2024-11-22 02:18:32,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-22 02:18:32,807 INFO L276 IsEmpty]: Start isEmpty. Operand 24319 states and 32209 transitions. [2024-11-22 02:18:32,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-22 02:18:32,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:18:32,828 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:18:32,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-22 02:18:33,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-22 02:18:33,029 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:18:33,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:18:33,029 INFO L85 PathProgramCache]: Analyzing trace with hash -682037718, now seen corresponding path program 1 times [2024-11-22 02:18:33,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:18:33,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767268934] [2024-11-22 02:18:33,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:18:33,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:18:33,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:18:33,137 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-22 02:18:33,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:18:33,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767268934] [2024-11-22 02:18:33,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767268934] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:18:33,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117067414] [2024-11-22 02:18:33,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:18:33,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:18:33,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:18:33,140 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:18:33,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-22 02:18:33,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:18:33,248 INFO L255 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 02:18:33,250 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:18:33,351 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 02:18:33,351 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:18:33,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117067414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:18:33,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:18:33,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2024-11-22 02:18:33,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366843020] [2024-11-22 02:18:33,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:18:33,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:18:33,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:18:33,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:18:33,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-22 02:18:33,353 INFO L87 Difference]: Start difference. First operand 24319 states and 32209 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11)