./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem19_label49.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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/eca-rers2012/Problem19_label49.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 4dab15ca8d564215247ed99810908aedd9e5c3b287c9c31800ebdafb000d0f0d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 04:32:02,611 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 04:32:02,677 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 04:32:02,683 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 04:32:02,684 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 04:32:02,709 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 04:32:02,710 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 04:32:02,711 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 04:32:02,711 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 04:32:02,713 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 04:32:02,713 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 04:32:02,714 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 04:32:02,714 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 04:32:02,716 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 04:32:02,716 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 04:32:02,716 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 04:32:02,717 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 04:32:02,717 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 04:32:02,717 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 04:32:02,717 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 04:32:02,717 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 04:32:02,718 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 04:32:02,718 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 04:32:02,718 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 04:32:02,719 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 04:32:02,719 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 04:32:02,719 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 04:32:02,719 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 04:32:02,719 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 04:32:02,720 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 04:32:02,720 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 04:32:02,720 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 04:32:02,720 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:32:02,721 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 04:32:02,721 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 04:32:02,721 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 04:32:02,725 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 04:32:02,725 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 04:32:02,725 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 04:32:02,725 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 04:32:02,725 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 04:32:02,726 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 04:32:02,727 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4dab15ca8d564215247ed99810908aedd9e5c3b287c9c31800ebdafb000d0f0d [2024-11-16 04:32:02,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 04:32:03,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 04:32:03,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 04:32:03,013 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 04:32:03,013 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 04:32:03,014 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem19_label49.c [2024-11-16 04:32:04,407 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 04:32:05,060 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 04:32:05,062 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem19_label49.c [2024-11-16 04:32:05,128 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83de67fd8/e4b1dc59e24445e3b2620e73d11f993d/FLAG33b735848 [2024-11-16 04:32:05,516 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83de67fd8/e4b1dc59e24445e3b2620e73d11f993d [2024-11-16 04:32:05,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 04:32:05,521 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 04:32:05,522 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 04:32:05,522 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 04:32:05,531 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 04:32:05,532 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:32:05" (1/1) ... [2024-11-16 04:32:05,533 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a04b330 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:32:05, skipping insertion in model container [2024-11-16 04:32:05,534 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:32:05" (1/1) ... [2024-11-16 04:32:05,699 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 04:32:06,035 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/eca-rers2012/Problem19_label49.c[5659,5672] [2024-11-16 04:32:07,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:32:07,425 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 04:32:07,448 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/eca-rers2012/Problem19_label49.c[5659,5672] [2024-11-16 04:32:08,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:32:08,189 INFO L204 MainTranslator]: Completed translation [2024-11-16 04:32:08,190 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:32:08 WrapperNode [2024-11-16 04:32:08,190 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 04:32:08,191 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 04:32:08,191 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 04:32:08,192 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 04:32:08,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:32:08" (1/1) ... [2024-11-16 04:32:08,287 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:32:08" (1/1) ... [2024-11-16 04:32:09,189 INFO L138 Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 9430 [2024-11-16 04:32:09,190 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 04:32:09,190 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 04:32:09,190 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 04:32:09,190 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 04:32:09,210 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:32:08" (1/1) ... [2024-11-16 04:32:09,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:32:08" (1/1) ... [2024-11-16 04:32:09,551 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:32:08" (1/1) ... [2024-11-16 04:32:09,980 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]. [2024-11-16 04:32:09,980 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:32:08" (1/1) ... [2024-11-16 04:32:09,981 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:32:08" (1/1) ... [2024-11-16 04:32:10,313 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:32:08" (1/1) ... [2024-11-16 04:32:10,403 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:32:08" (1/1) ... [2024-11-16 04:32:10,499 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:32:08" (1/1) ... [2024-11-16 04:32:10,527 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:32:08" (1/1) ... [2024-11-16 04:32:10,700 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 04:32:10,702 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 04:32:10,703 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 04:32:10,703 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 04:32:10,704 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:32:08" (1/1) ... [2024-11-16 04:32:10,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:32:10,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:32:10,742 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) [2024-11-16 04:32:10,744 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 [2024-11-16 04:32:10,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 04:32:10,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 04:32:10,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 04:32:10,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 04:32:10,859 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 04:32:10,861 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 04:32:18,436 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6717: havoc calculate_output4_#t~ret14#1; [2024-11-16 04:32:18,436 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3435: havoc calculate_output2_#t~ret12#1; [2024-11-16 04:32:18,436 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1859: havoc calculate_output_#t~ret11#1; [2024-11-16 04:32:18,436 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8350: havoc calculate_output5_#t~ret15#1; [2024-11-16 04:32:18,437 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5079: havoc calculate_output3_#t~ret13#1; [2024-11-16 04:32:18,765 INFO L? ?]: Removed 1320 outVars from TransFormulas that were not future-live. [2024-11-16 04:32:18,765 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 04:32:18,816 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 04:32:18,819 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 04:32:18,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:32:18 BoogieIcfgContainer [2024-11-16 04:32:18,820 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 04:32:18,822 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 04:32:18,823 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 04:32:18,826 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 04:32:18,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:32:05" (1/3) ... [2024-11-16 04:32:18,827 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3087adb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:32:18, skipping insertion in model container [2024-11-16 04:32:18,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:32:08" (2/3) ... [2024-11-16 04:32:18,829 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3087adb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:32:18, skipping insertion in model container [2024-11-16 04:32:18,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:32:18" (3/3) ... [2024-11-16 04:32:18,830 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label49.c [2024-11-16 04:32:18,847 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 04:32:18,848 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 04:32:18,957 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 04:32:18,965 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;@3c0d925e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 04:32:18,966 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 04:32:18,977 INFO L276 IsEmpty]: Start isEmpty. Operand has 1751 states, 1749 states have (on average 1.8684962835906231) internal successors, (3268), 1750 states have internal predecessors, (3268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:32:18,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-16 04:32:18,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:32:18,987 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:32:18,987 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:32:18,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:32:18,992 INFO L85 PathProgramCache]: Analyzing trace with hash 692552642, now seen corresponding path program 1 times [2024-11-16 04:32:19,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:32:19,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603446464] [2024-11-16 04:32:19,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:32:19,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:32:19,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:32:19,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:32:19,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:32:19,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603446464] [2024-11-16 04:32:19,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603446464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:32:19,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:32:19,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:32:19,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881214524] [2024-11-16 04:32:19,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:32:19,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:32:19,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:32:19,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:32:19,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:32:19,533 INFO L87 Difference]: Start difference. First operand has 1751 states, 1749 states have (on average 1.8684962835906231) internal successors, (3268), 1750 states have internal predecessors, (3268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:32:31,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:32:31,309 INFO L93 Difference]: Finished difference Result 6342 states and 12146 transitions. [2024-11-16 04:32:31,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:32:31,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-11-16 04:32:31,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:32:31,347 INFO L225 Difference]: With dead ends: 6342 [2024-11-16 04:32:31,348 INFO L226 Difference]: Without dead ends: 4524 [2024-11-16 04:32:31,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:32:31,362 INFO L432 NwaCegarLoop]: 1919 mSDtfsCounter, 4272 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 11295 mSolverCounterSat, 2249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4272 SdHoareTripleChecker+Valid, 2204 SdHoareTripleChecker+Invalid, 13544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2249 IncrementalHoareTripleChecker+Valid, 11295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:32:31,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4272 Valid, 2204 Invalid, 13544 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2249 Valid, 11295 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2024-11-16 04:32:31,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4524 states. [2024-11-16 04:32:31,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4524 to 4473. [2024-11-16 04:32:31,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4473 states, 4472 states have (on average 1.5974955277280858) internal successors, (7144), 4472 states have internal predecessors, (7144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:32:31,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4473 states to 4473 states and 7144 transitions. [2024-11-16 04:32:31,542 INFO L78 Accepts]: Start accepts. Automaton has 4473 states and 7144 transitions. Word has length 44 [2024-11-16 04:32:31,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:32:31,543 INFO L471 AbstractCegarLoop]: Abstraction has 4473 states and 7144 transitions. [2024-11-16 04:32:31,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:32:31,543 INFO L276 IsEmpty]: Start isEmpty. Operand 4473 states and 7144 transitions. [2024-11-16 04:32:31,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-11-16 04:32:31,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:32:31,551 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:32:31,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 04:32:31,551 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:32:31,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:32:31,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1039886245, now seen corresponding path program 1 times [2024-11-16 04:32:31,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:32:31,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848909045] [2024-11-16 04:32:31,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:32:31,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:32:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:32:32,685 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:32:32,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:32:32,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848909045] [2024-11-16 04:32:32,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848909045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:32:32,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:32:32,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:32:32,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606901153] [2024-11-16 04:32:32,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:32:32,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:32:32,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:32:32,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:32:32,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:32:32,689 INFO L87 Difference]: Start difference. First operand 4473 states and 7144 transitions. Second operand has 4 states, 4 states have (on average 70.0) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:32:38,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:32:38,799 INFO L93 Difference]: Finished difference Result 7610 states and 12940 transitions. [2024-11-16 04:32:38,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:32:38,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 70.0) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 280 [2024-11-16 04:32:38,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:32:38,820 INFO L225 Difference]: With dead ends: 7610 [2024-11-16 04:32:38,820 INFO L226 Difference]: Without dead ends: 4473 [2024-11-16 04:32:38,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:32:38,828 INFO L432 NwaCegarLoop]: 1774 mSDtfsCounter, 1138 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 7327 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 2120 SdHoareTripleChecker+Invalid, 7335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 7327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:32:38,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1138 Valid, 2120 Invalid, 7335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 7327 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-16 04:32:38,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4473 states. [2024-11-16 04:32:38,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4473 to 4473. [2024-11-16 04:32:38,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4473 states, 4472 states have (on average 1.5954830053667264) internal successors, (7135), 4472 states have internal predecessors, (7135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:32:38,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4473 states to 4473 states and 7135 transitions. [2024-11-16 04:32:38,934 INFO L78 Accepts]: Start accepts. Automaton has 4473 states and 7135 transitions. Word has length 280 [2024-11-16 04:32:38,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:32:38,935 INFO L471 AbstractCegarLoop]: Abstraction has 4473 states and 7135 transitions. [2024-11-16 04:32:38,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.0) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:32:38,936 INFO L276 IsEmpty]: Start isEmpty. Operand 4473 states and 7135 transitions. [2024-11-16 04:32:38,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2024-11-16 04:32:38,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:32:38,952 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:32:38,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 04:32:38,953 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:32:38,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:32:38,957 INFO L85 PathProgramCache]: Analyzing trace with hash 680485620, now seen corresponding path program 1 times [2024-11-16 04:32:38,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:32:38,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475768119] [2024-11-16 04:32:38,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:32:38,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:32:39,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:32:40,305 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:32:40,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:32:40,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475768119] [2024-11-16 04:32:40,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475768119] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:32:40,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330798253] [2024-11-16 04:32:40,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:32:40,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:32:40,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:32:40,312 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) [2024-11-16 04:32:40,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 04:32:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:32:40,529 INFO L255 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:32:40,550 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:32:41,290 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-16 04:32:41,291 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:32:41,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330798253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:32:41,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:32:41,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-16 04:32:41,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559716442] [2024-11-16 04:32:41,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:32:41,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:32:41,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:32:41,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:32:41,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:32:41,294 INFO L87 Difference]: Start difference. First operand 4473 states and 7135 transitions. Second operand has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 2 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:32:46,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:32:46,149 INFO L93 Difference]: Finished difference Result 10348 states and 18173 transitions. [2024-11-16 04:32:46,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:32:46,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 2 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 532 [2024-11-16 04:32:46,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:32:46,178 INFO L225 Difference]: With dead ends: 10348 [2024-11-16 04:32:46,178 INFO L226 Difference]: Without dead ends: 7243 [2024-11-16 04:32:46,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 531 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:32:46,187 INFO L432 NwaCegarLoop]: 1212 mSDtfsCounter, 1058 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 4577 mSolverCounterSat, 1050 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 1392 SdHoareTripleChecker+Invalid, 5627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1050 IncrementalHoareTripleChecker+Valid, 4577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:32:46,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 1392 Invalid, 5627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1050 Valid, 4577 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-16 04:32:46,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7243 states. [2024-11-16 04:32:46,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7243 to 7242. [2024-11-16 04:32:46,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7242 states, 7241 states have (on average 1.5196796022648806) internal successors, (11004), 7241 states have internal predecessors, (11004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:32:46,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7242 states to 7242 states and 11004 transitions. [2024-11-16 04:32:46,330 INFO L78 Accepts]: Start accepts. Automaton has 7242 states and 11004 transitions. Word has length 532 [2024-11-16 04:32:46,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:32:46,331 INFO L471 AbstractCegarLoop]: Abstraction has 7242 states and 11004 transitions. [2024-11-16 04:32:46,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 2 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:32:46,331 INFO L276 IsEmpty]: Start isEmpty. Operand 7242 states and 11004 transitions. [2024-11-16 04:32:46,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2024-11-16 04:32:46,342 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:32:46,342 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:32:46,359 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 04:32:46,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:32:46,544 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:32:46,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:32:46,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1565926819, now seen corresponding path program 1 times [2024-11-16 04:32:46,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:32:46,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734370634] [2024-11-16 04:32:46,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:32:46,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:32:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:32:47,842 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:32:47,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:32:47,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734370634] [2024-11-16 04:32:47,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734370634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:32:47,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:32:47,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:32:47,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610316613] [2024-11-16 04:32:47,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:32:47,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:32:47,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:32:47,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:32:47,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:32:47,847 INFO L87 Difference]: Start difference. First operand 7242 states and 11004 transitions. Second operand has 3 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:32:53,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:32:53,321 INFO L93 Difference]: Finished difference Result 15922 states and 25225 transitions. [2024-11-16 04:32:53,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:32:53,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 598 [2024-11-16 04:32:53,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:32:53,357 INFO L225 Difference]: With dead ends: 15922 [2024-11-16 04:32:53,358 INFO L226 Difference]: Without dead ends: 10048 [2024-11-16 04:32:53,369 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:32:53,370 INFO L432 NwaCegarLoop]: 544 mSDtfsCounter, 1680 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 4179 mSolverCounterSat, 2355 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1680 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 6534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2355 IncrementalHoareTripleChecker+Valid, 4179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:32:53,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1680 Valid, 611 Invalid, 6534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2355 Valid, 4179 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-16 04:32:53,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10048 states. [2024-11-16 04:32:53,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10048 to 10000. [2024-11-16 04:32:53,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10000 states, 9999 states have (on average 1.5230523052305232) internal successors, (15229), 9999 states have internal predecessors, (15229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:32:53,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10000 states to 10000 states and 15229 transitions. [2024-11-16 04:32:53,539 INFO L78 Accepts]: Start accepts. Automaton has 10000 states and 15229 transitions. Word has length 598 [2024-11-16 04:32:53,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:32:53,541 INFO L471 AbstractCegarLoop]: Abstraction has 10000 states and 15229 transitions. [2024-11-16 04:32:53,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:32:53,542 INFO L276 IsEmpty]: Start isEmpty. Operand 10000 states and 15229 transitions. [2024-11-16 04:32:53,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2024-11-16 04:32:53,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:32:53,560 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:32:53,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 04:32:53,560 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:32:53,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:32:53,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1996515335, now seen corresponding path program 1 times [2024-11-16 04:32:53,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:32:53,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510453781] [2024-11-16 04:32:53,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:32:53,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:32:53,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:32:54,039 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-16 04:32:54,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:32:54,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510453781] [2024-11-16 04:32:54,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510453781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:32:54,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:32:54,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:32:54,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394567334] [2024-11-16 04:32:54,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:32:54,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:32:54,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:32:54,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:32:54,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:32:54,043 INFO L87 Difference]: Start difference. First operand 10000 states and 15229 transitions. Second operand has 3 states, 3 states have (on average 175.0) internal successors, (525), 2 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:32:58,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:32:58,964 INFO L93 Difference]: Finished difference Result 22730 states and 34748 transitions. [2024-11-16 04:32:58,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:32:58,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 175.0) internal successors, (525), 2 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 609 [2024-11-16 04:32:58,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:32:58,995 INFO L225 Difference]: With dead ends: 22730 [2024-11-16 04:32:58,996 INFO L226 Difference]: Without dead ends: 14098 [2024-11-16 04:32:59,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:32:59,010 INFO L432 NwaCegarLoop]: 701 mSDtfsCounter, 1396 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 3927 mSolverCounterSat, 1668 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1396 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 5595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1668 IncrementalHoareTripleChecker+Valid, 3927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:32:59,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1396 Valid, 752 Invalid, 5595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1668 Valid, 3927 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-16 04:32:59,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14098 states. [2024-11-16 04:32:59,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14098 to 14094. [2024-11-16 04:32:59,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14094 states, 14093 states have (on average 1.385936280422905) internal successors, (19532), 14093 states have internal predecessors, (19532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:32:59,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14094 states to 14094 states and 19532 transitions. [2024-11-16 04:32:59,269 INFO L78 Accepts]: Start accepts. Automaton has 14094 states and 19532 transitions. Word has length 609 [2024-11-16 04:32:59,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:32:59,270 INFO L471 AbstractCegarLoop]: Abstraction has 14094 states and 19532 transitions. [2024-11-16 04:32:59,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.0) internal successors, (525), 2 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:32:59,271 INFO L276 IsEmpty]: Start isEmpty. Operand 14094 states and 19532 transitions. [2024-11-16 04:32:59,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2024-11-16 04:32:59,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:32:59,279 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:32:59,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 04:32:59,279 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:32:59,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:32:59,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1908596023, now seen corresponding path program 1 times [2024-11-16 04:32:59,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:32:59,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393840096] [2024-11-16 04:32:59,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:32:59,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:32:59,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:32:59,850 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-16 04:32:59,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:32:59,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393840096] [2024-11-16 04:32:59,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393840096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:32:59,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:32:59,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:32:59,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076050278] [2024-11-16 04:32:59,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:32:59,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:32:59,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:32:59,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:32:59,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:32:59,859 INFO L87 Difference]: Start difference. First operand 14094 states and 19532 transitions. Second operand has 3 states, 3 states have (on average 175.0) internal successors, (525), 2 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:33:05,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:33:05,042 INFO L93 Difference]: Finished difference Result 39312 states and 55566 transitions. [2024-11-16 04:33:05,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:33:05,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 175.0) internal successors, (525), 2 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 622 [2024-11-16 04:33:05,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:33:05,095 INFO L225 Difference]: With dead ends: 39312 [2024-11-16 04:33:05,095 INFO L226 Difference]: Without dead ends: 26586 [2024-11-16 04:33:05,115 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:33:05,117 INFO L432 NwaCegarLoop]: 1331 mSDtfsCounter, 1362 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 4184 mSolverCounterSat, 1430 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1362 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 5614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1430 IncrementalHoareTripleChecker+Valid, 4184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:33:05,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1362 Valid, 1603 Invalid, 5614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1430 Valid, 4184 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-16 04:33:05,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26586 states. [2024-11-16 04:33:05,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26586 to 26570. [2024-11-16 04:33:05,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26570 states, 26569 states have (on average 1.271218337159848) internal successors, (33775), 26569 states have internal predecessors, (33775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:33:05,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26570 states to 26570 states and 33775 transitions. [2024-11-16 04:33:05,579 INFO L78 Accepts]: Start accepts. Automaton has 26570 states and 33775 transitions. Word has length 622 [2024-11-16 04:33:05,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:33:05,580 INFO L471 AbstractCegarLoop]: Abstraction has 26570 states and 33775 transitions. [2024-11-16 04:33:05,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.0) internal successors, (525), 2 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:33:05,580 INFO L276 IsEmpty]: Start isEmpty. Operand 26570 states and 33775 transitions. [2024-11-16 04:33:05,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 638 [2024-11-16 04:33:05,584 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:33:05,586 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:33:05,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 04:33:05,586 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:33:05,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:33:05,587 INFO L85 PathProgramCache]: Analyzing trace with hash 569783435, now seen corresponding path program 1 times [2024-11-16 04:33:05,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:33:05,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364504671] [2024-11-16 04:33:05,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:33:05,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:33:05,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:33:06,559 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:33:06,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:33:06,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364504671] [2024-11-16 04:33:06,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364504671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:33:06,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:33:06,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 04:33:06,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665017036] [2024-11-16 04:33:06,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:33:06,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 04:33:06,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:33:06,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 04:33:06,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:33:06,565 INFO L87 Difference]: Start difference. First operand 26570 states and 33775 transitions. Second operand has 5 states, 5 states have (on average 127.4) internal successors, (637), 4 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:33:15,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:33:15,210 INFO L93 Difference]: Finished difference Result 61374 states and 76936 transitions. [2024-11-16 04:33:15,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 04:33:15,210 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 127.4) internal successors, (637), 4 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 637 [2024-11-16 04:33:15,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:33:15,260 INFO L225 Difference]: With dead ends: 61374 [2024-11-16 04:33:15,260 INFO L226 Difference]: Without dead ends: 36145 [2024-11-16 04:33:15,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:33:15,281 INFO L432 NwaCegarLoop]: 1659 mSDtfsCounter, 2172 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 13153 mSolverCounterSat, 394 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2172 SdHoareTripleChecker+Valid, 2196 SdHoareTripleChecker+Invalid, 13547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 394 IncrementalHoareTripleChecker+Valid, 13153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:33:15,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2172 Valid, 2196 Invalid, 13547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [394 Valid, 13153 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2024-11-16 04:33:15,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36145 states. [2024-11-16 04:33:15,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36145 to 34773. [2024-11-16 04:33:15,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34773 states, 34772 states have (on average 1.2172150005751754) internal successors, (42325), 34772 states have internal predecessors, (42325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:33:15,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34773 states to 34773 states and 42325 transitions. [2024-11-16 04:33:15,613 INFO L78 Accepts]: Start accepts. Automaton has 34773 states and 42325 transitions. Word has length 637 [2024-11-16 04:33:15,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:33:15,614 INFO L471 AbstractCegarLoop]: Abstraction has 34773 states and 42325 transitions. [2024-11-16 04:33:15,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 127.4) internal successors, (637), 4 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:33:15,616 INFO L276 IsEmpty]: Start isEmpty. Operand 34773 states and 42325 transitions. [2024-11-16 04:33:15,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 683 [2024-11-16 04:33:15,625 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:33:15,626 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:33:15,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 04:33:15,626 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:33:15,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:33:15,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1953582034, now seen corresponding path program 1 times [2024-11-16 04:33:15,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:33:15,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696644390] [2024-11-16 04:33:15,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:33:15,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:33:15,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:33:16,124 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2024-11-16 04:33:16,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:33:16,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696644390] [2024-11-16 04:33:16,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696644390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:33:16,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:33:16,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:33:16,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049927083] [2024-11-16 04:33:16,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:33:16,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:33:16,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:33:16,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:33:16,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:33:16,127 INFO L87 Difference]: Start difference. First operand 34773 states and 42325 transitions. Second operand has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)