./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem19_label44.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_label44.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 3542ad3d447b947690b49c5fc158285b42adda78f0fdce0b42f6bfc41ea9f09f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 04:31:43,580 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 04:31:43,646 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 04:31:43,650 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 04:31:43,650 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 04:31:43,677 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 04:31:43,678 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 04:31:43,678 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 04:31:43,679 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 04:31:43,680 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 04:31:43,681 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 04:31:43,681 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 04:31:43,681 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 04:31:43,682 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 04:31:43,682 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 04:31:43,682 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 04:31:43,683 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 04:31:43,683 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 04:31:43,684 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 04:31:43,685 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 04:31:43,685 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 04:31:43,686 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 04:31:43,686 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 04:31:43,686 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 04:31:43,687 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 04:31:43,687 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 04:31:43,687 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 04:31:43,687 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 04:31:43,688 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 04:31:43,688 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 04:31:43,688 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 04:31:43,689 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 04:31:43,689 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:31:43,689 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 04:31:43,690 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 04:31:43,690 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 04:31:43,690 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 04:31:43,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 04:31:43,691 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 04:31:43,691 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 04:31:43,691 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 04:31:43,692 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 04:31:43,692 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3542ad3d447b947690b49c5fc158285b42adda78f0fdce0b42f6bfc41ea9f09f [2024-11-16 04:31:44,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 04:31:44,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 04:31:44,028 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 04:31:44,029 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 04:31:44,030 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 04:31:44,031 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem19_label44.c [2024-11-16 04:31:45,497 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 04:31:46,123 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 04:31:46,125 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem19_label44.c [2024-11-16 04:31:46,179 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a46c7ae95/7c7af4e133a9448d9a68be484bce059e/FLAG92e271856 [2024-11-16 04:31:46,610 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a46c7ae95/7c7af4e133a9448d9a68be484bce059e [2024-11-16 04:31:46,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 04:31:46,614 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 04:31:46,615 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 04:31:46,616 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 04:31:46,621 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 04:31:46,621 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:31:46" (1/1) ... [2024-11-16 04:31:46,622 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ea07d43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:31:46, skipping insertion in model container [2024-11-16 04:31:46,622 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:31:46" (1/1) ... [2024-11-16 04:31:46,774 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 04:31:47,105 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_label44.c[4684,4697] [2024-11-16 04:31:48,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:31:48,198 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 04:31:48,220 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_label44.c[4684,4697] [2024-11-16 04:31:48,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:31:49,009 INFO L204 MainTranslator]: Completed translation [2024-11-16 04:31:49,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:31:49 WrapperNode [2024-11-16 04:31:49,010 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 04:31:49,011 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 04:31:49,011 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 04:31:49,011 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 04:31:49,016 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:31:49" (1/1) ... [2024-11-16 04:31:49,101 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:31:49" (1/1) ... [2024-11-16 04:31:50,123 INFO L138 Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 9430 [2024-11-16 04:31:50,124 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 04:31:50,125 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 04:31:50,125 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 04:31:50,125 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 04:31:50,139 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:31:49" (1/1) ... [2024-11-16 04:31:50,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:31:49" (1/1) ... [2024-11-16 04:31:50,341 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:31:49" (1/1) ... [2024-11-16 04:31:50,715 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 04:31:50,719 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:31:49" (1/1) ... [2024-11-16 04:31:50,719 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:31:49" (1/1) ... [2024-11-16 04:31:51,233 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:31:49" (1/1) ... [2024-11-16 04:31:51,277 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:31:49" (1/1) ... [2024-11-16 04:31:51,343 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:31:49" (1/1) ... [2024-11-16 04:31:51,380 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:31:49" (1/1) ... [2024-11-16 04:31:51,474 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 04:31:51,475 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 04:31:51,475 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 04:31:51,475 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 04:31:51,476 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:31:49" (1/1) ... [2024-11-16 04:31:51,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:31:51,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:31:51,509 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 04:31:51,517 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 04:31:51,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 04:31:51,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 04:31:51,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 04:31:51,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 04:31:51,663 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 04:31:51,665 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 04:31:59,337 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6717: havoc calculate_output4_#t~ret14#1; [2024-11-16 04:31:59,338 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3435: havoc calculate_output2_#t~ret12#1; [2024-11-16 04:31:59,338 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1859: havoc calculate_output_#t~ret11#1; [2024-11-16 04:31:59,338 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8350: havoc calculate_output5_#t~ret15#1; [2024-11-16 04:31:59,339 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5079: havoc calculate_output3_#t~ret13#1; [2024-11-16 04:31:59,805 INFO L? ?]: Removed 1320 outVars from TransFormulas that were not future-live. [2024-11-16 04:31:59,806 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 04:31:59,862 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 04:31:59,862 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 04:31:59,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:31:59 BoogieIcfgContainer [2024-11-16 04:31:59,863 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 04:31:59,867 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 04:31:59,868 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 04:31:59,872 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 04:31:59,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:31:46" (1/3) ... [2024-11-16 04:31:59,874 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@331f960a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:31:59, skipping insertion in model container [2024-11-16 04:31:59,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:31:49" (2/3) ... [2024-11-16 04:31:59,876 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@331f960a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:31:59, skipping insertion in model container [2024-11-16 04:31:59,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:31:59" (3/3) ... [2024-11-16 04:31:59,878 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label44.c [2024-11-16 04:31:59,895 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 04:31:59,896 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 04:32:00,022 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 04:32:00,032 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;@b4ae4b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 04:32:00,033 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 04:32:00,044 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 04:32:00,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-16 04:32:00,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:32:00,053 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] [2024-11-16 04:32:00,054 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:32:00,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:32:00,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1940486450, now seen corresponding path program 1 times [2024-11-16 04:32:00,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:32:00,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094723574] [2024-11-16 04:32:00,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:32:00,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:32:00,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:32:00,444 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 04:32:00,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:32:00,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094723574] [2024-11-16 04:32:00,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094723574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:32:00,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:32:00,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:32:00,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566672847] [2024-11-16 04:32:00,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:32:00,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:32:00,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:32:00,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:32:00,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:32:00,492 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 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 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 04:32:06,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:32:06,809 INFO L93 Difference]: Finished difference Result 4925 states and 9319 transitions. [2024-11-16 04:32:06,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:32:06,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 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 36 [2024-11-16 04:32:06,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:32:06,844 INFO L225 Difference]: With dead ends: 4925 [2024-11-16 04:32:06,844 INFO L226 Difference]: Without dead ends: 3110 [2024-11-16 04:32:06,854 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 04:32:06,858 INFO L432 NwaCegarLoop]: 1279 mSDtfsCounter, 1519 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 4638 mSolverCounterSat, 1110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 5748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1110 IncrementalHoareTripleChecker+Valid, 4638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:32:06,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1462 Invalid, 5748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1110 Valid, 4638 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-16 04:32:06,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3110 states. [2024-11-16 04:32:07,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3110 to 3109. [2024-11-16 04:32:07,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3109 states, 3108 states have (on average 1.6521879021879022) internal successors, (5135), 3108 states have internal predecessors, (5135), 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 04:32:07,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3109 states to 3109 states and 5135 transitions. [2024-11-16 04:32:07,025 INFO L78 Accepts]: Start accepts. Automaton has 3109 states and 5135 transitions. Word has length 36 [2024-11-16 04:32:07,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:32:07,025 INFO L471 AbstractCegarLoop]: Abstraction has 3109 states and 5135 transitions. [2024-11-16 04:32:07,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 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 04:32:07,026 INFO L276 IsEmpty]: Start isEmpty. Operand 3109 states and 5135 transitions. [2024-11-16 04:32:07,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 04:32:07,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:32:07,033 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:32:07,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 04:32:07,034 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:32:07,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:32:07,035 INFO L85 PathProgramCache]: Analyzing trace with hash 2021779852, now seen corresponding path program 1 times [2024-11-16 04:32:07,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:32:07,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710084683] [2024-11-16 04:32:07,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:32:07,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:32:07,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:32:07,263 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:32:07,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:32:07,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710084683] [2024-11-16 04:32:07,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710084683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:32:07,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:32:07,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:32:07,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619663459] [2024-11-16 04:32:07,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:32:07,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:32:07,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:32:07,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:32:07,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:32:07,269 INFO L87 Difference]: Start difference. First operand 3109 states and 5135 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 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 04:32:13,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:32:13,614 INFO L93 Difference]: Finished difference Result 9106 states and 15093 transitions. [2024-11-16 04:32:13,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:32:13,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 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 106 [2024-11-16 04:32:13,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:32:13,640 INFO L225 Difference]: With dead ends: 9106 [2024-11-16 04:32:13,640 INFO L226 Difference]: Without dead ends: 5999 [2024-11-16 04:32:13,645 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 04:32:13,647 INFO L432 NwaCegarLoop]: 722 mSDtfsCounter, 2534 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 5120 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2534 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 5554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 5120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-16 04:32:13,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2534 Valid, 994 Invalid, 5554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 5120 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2024-11-16 04:32:13,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5999 states. [2024-11-16 04:32:13,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5999 to 5996. [2024-11-16 04:32:13,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5996 states, 5995 states have (on average 1.605671392827356) internal successors, (9626), 5995 states have internal predecessors, (9626), 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 04:32:13,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5996 states to 5996 states and 9626 transitions. [2024-11-16 04:32:13,766 INFO L78 Accepts]: Start accepts. Automaton has 5996 states and 9626 transitions. Word has length 106 [2024-11-16 04:32:13,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:32:13,767 INFO L471 AbstractCegarLoop]: Abstraction has 5996 states and 9626 transitions. [2024-11-16 04:32:13,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 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 04:32:13,768 INFO L276 IsEmpty]: Start isEmpty. Operand 5996 states and 9626 transitions. [2024-11-16 04:32:13,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 04:32:13,770 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:32:13,770 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:32:13,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 04:32:13,771 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:32:13,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:32:13,775 INFO L85 PathProgramCache]: Analyzing trace with hash -54292834, now seen corresponding path program 1 times [2024-11-16 04:32:13,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:32:13,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884335139] [2024-11-16 04:32:13,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:32:13,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:32:13,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:32:14,056 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:32:14,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:32:14,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884335139] [2024-11-16 04:32:14,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884335139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:32:14,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:32:14,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:32:14,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18459318] [2024-11-16 04:32:14,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:32:14,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:32:14,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:32:14,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:32:14,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:32:14,062 INFO L87 Difference]: Start difference. First operand 5996 states and 9626 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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 04:32:19,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:32:19,409 INFO L93 Difference]: Finished difference Result 17573 states and 28322 transitions. [2024-11-16 04:32:19,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:32:19,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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 111 [2024-11-16 04:32:19,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:32:19,457 INFO L225 Difference]: With dead ends: 17573 [2024-11-16 04:32:19,457 INFO L226 Difference]: Without dead ends: 11579 [2024-11-16 04:32:19,469 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 04:32:19,471 INFO L432 NwaCegarLoop]: 1566 mSDtfsCounter, 1445 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 4825 mSolverCounterSat, 1045 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1445 SdHoareTripleChecker+Valid, 1736 SdHoareTripleChecker+Invalid, 5870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1045 IncrementalHoareTripleChecker+Valid, 4825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-16 04:32:19,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1445 Valid, 1736 Invalid, 5870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1045 Valid, 4825 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-16 04:32:19,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11579 states. [2024-11-16 04:32:19,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11579 to 11526. [2024-11-16 04:32:19,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11526 states, 11525 states have (on average 1.4293275488069415) internal successors, (16473), 11525 states have internal predecessors, (16473), 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 04:32:19,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11526 states to 11526 states and 16473 transitions. [2024-11-16 04:32:19,922 INFO L78 Accepts]: Start accepts. Automaton has 11526 states and 16473 transitions. Word has length 111 [2024-11-16 04:32:19,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:32:19,923 INFO L471 AbstractCegarLoop]: Abstraction has 11526 states and 16473 transitions. [2024-11-16 04:32:19,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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 04:32:19,924 INFO L276 IsEmpty]: Start isEmpty. Operand 11526 states and 16473 transitions. [2024-11-16 04:32:19,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-16 04:32:19,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:32:19,929 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:32:19,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 04:32:19,930 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:32:19,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:32:19,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1531256466, now seen corresponding path program 1 times [2024-11-16 04:32:19,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:32:19,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313282533] [2024-11-16 04:32:19,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:32:19,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:32:19,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:32:20,112 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:32:20,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:32:20,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313282533] [2024-11-16 04:32:20,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313282533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:32:20,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:32:20,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:32:20,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894888082] [2024-11-16 04:32:20,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:32:20,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:32:20,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:32:20,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:32:20,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:32:20,116 INFO L87 Difference]: Start difference. First operand 11526 states and 16473 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 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 04:32:25,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:32:25,722 INFO L93 Difference]: Finished difference Result 34195 states and 48938 transitions. [2024-11-16 04:32:25,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:32:25,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 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 134 [2024-11-16 04:32:25,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:32:25,805 INFO L225 Difference]: With dead ends: 34195 [2024-11-16 04:32:25,806 INFO L226 Difference]: Without dead ends: 22671 [2024-11-16 04:32:25,824 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 04:32:25,825 INFO L432 NwaCegarLoop]: 1806 mSDtfsCounter, 1749 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 4312 mSolverCounterSat, 1430 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1749 SdHoareTripleChecker+Valid, 2080 SdHoareTripleChecker+Invalid, 5742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1430 IncrementalHoareTripleChecker+Valid, 4312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:32:25,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1749 Valid, 2080 Invalid, 5742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1430 Valid, 4312 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-16 04:32:25,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22671 states. [2024-11-16 04:32:26,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22671 to 21287. [2024-11-16 04:32:26,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21287 states, 21286 states have (on average 1.2864323968805789) internal successors, (27383), 21286 states have internal predecessors, (27383), 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 04:32:26,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21287 states to 21287 states and 27383 transitions. [2024-11-16 04:32:26,413 INFO L78 Accepts]: Start accepts. Automaton has 21287 states and 27383 transitions. Word has length 134 [2024-11-16 04:32:26,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:32:26,414 INFO L471 AbstractCegarLoop]: Abstraction has 21287 states and 27383 transitions. [2024-11-16 04:32:26,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 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 04:32:26,415 INFO L276 IsEmpty]: Start isEmpty. Operand 21287 states and 27383 transitions. [2024-11-16 04:32:26,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-16 04:32:26,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:32:26,418 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:32:26,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 04:32:26,418 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:32:26,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:32:26,419 INFO L85 PathProgramCache]: Analyzing trace with hash -600938292, now seen corresponding path program 1 times [2024-11-16 04:32:26,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:32:26,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820444289] [2024-11-16 04:32:26,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:32:26,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:32:26,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:32:26,678 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:32:26,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:32:26,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820444289] [2024-11-16 04:32:26,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820444289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:32:26,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:32:26,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:32:26,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546340962] [2024-11-16 04:32:26,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:32:26,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:32:26,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:32:26,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:32:26,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:32:26,682 INFO L87 Difference]: Start difference. First operand 21287 states and 27383 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 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 04:32:32,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:32:32,822 INFO L93 Difference]: Finished difference Result 63204 states and 81315 transitions. [2024-11-16 04:32:32,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:32:32,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 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 175 [2024-11-16 04:32:32,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:32:32,911 INFO L225 Difference]: With dead ends: 63204 [2024-11-16 04:32:32,912 INFO L226 Difference]: Without dead ends: 41919 [2024-11-16 04:32:32,941 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 04:32:32,944 INFO L432 NwaCegarLoop]: 1670 mSDtfsCounter, 1467 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 4395 mSolverCounterSat, 1425 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1467 SdHoareTripleChecker+Valid, 1891 SdHoareTripleChecker+Invalid, 5820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1425 IncrementalHoareTripleChecker+Valid, 4395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:32:32,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1467 Valid, 1891 Invalid, 5820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1425 Valid, 4395 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-16 04:32:32,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41919 states. [2024-11-16 04:32:33,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41919 to 40503. [2024-11-16 04:32:33,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40503 states, 40502 states have (on average 1.1931756456471285) internal successors, (48326), 40502 states have internal predecessors, (48326), 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 04:32:33,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40503 states to 40503 states and 48326 transitions. [2024-11-16 04:32:33,561 INFO L78 Accepts]: Start accepts. Automaton has 40503 states and 48326 transitions. Word has length 175 [2024-11-16 04:32:33,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:32:33,561 INFO L471 AbstractCegarLoop]: Abstraction has 40503 states and 48326 transitions. [2024-11-16 04:32:33,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 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 04:32:33,562 INFO L276 IsEmpty]: Start isEmpty. Operand 40503 states and 48326 transitions. [2024-11-16 04:32:33,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2024-11-16 04:32:33,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:32:33,567 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:32:33,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 04:32:33,568 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:32:33,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:32:33,568 INFO L85 PathProgramCache]: Analyzing trace with hash -2090491715, now seen corresponding path program 1 times [2024-11-16 04:32:33,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:32:33,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212506138] [2024-11-16 04:32:33,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:32:33,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:32:33,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:32:34,668 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-16 04:32:34,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:32:34,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212506138] [2024-11-16 04:32:34,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212506138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:32:34,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:32:34,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:32:34,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191637487] [2024-11-16 04:32:34,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:32:34,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:32:34,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:32:34,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:32:34,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:32:34,672 INFO L87 Difference]: Start difference. First operand 40503 states and 48326 transitions. Second operand has 4 states, 4 states have (on average 93.25) internal successors, (373), 3 states have internal predecessors, (373), 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 04:32:42,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:32:42,615 INFO L93 Difference]: Finished difference Result 100209 states and 117626 transitions. [2024-11-16 04:32:42,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:32:42,616 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 93.25) internal successors, (373), 3 states have internal predecessors, (373), 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 405 [2024-11-16 04:32:42,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:32:42,704 INFO L225 Difference]: With dead ends: 100209 [2024-11-16 04:32:42,705 INFO L226 Difference]: Without dead ends: 59708 [2024-11-16 04:32:42,732 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 04:32:42,733 INFO L432 NwaCegarLoop]: 1804 mSDtfsCounter, 3758 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 9446 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3758 SdHoareTripleChecker+Valid, 2165 SdHoareTripleChecker+Invalid, 9690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 9446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:32:42,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3758 Valid, 2165 Invalid, 9690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 9446 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2024-11-16 04:32:42,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59708 states. [2024-11-16 04:32:43,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59708 to 56934. [2024-11-16 04:32:43,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56934 states, 56933 states have (on average 1.1543568756257354) internal successors, (65721), 56933 states have internal predecessors, (65721), 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 04:32:43,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56934 states to 56934 states and 65721 transitions. [2024-11-16 04:32:43,357 INFO L78 Accepts]: Start accepts. Automaton has 56934 states and 65721 transitions. Word has length 405 [2024-11-16 04:32:43,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:32:43,357 INFO L471 AbstractCegarLoop]: Abstraction has 56934 states and 65721 transitions. [2024-11-16 04:32:43,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.25) internal successors, (373), 3 states have internal predecessors, (373), 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 04:32:43,358 INFO L276 IsEmpty]: Start isEmpty. Operand 56934 states and 65721 transitions. [2024-11-16 04:32:43,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2024-11-16 04:32:43,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:32:43,370 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 04:32:43,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 04:32:43,370 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:32:43,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:32:43,371 INFO L85 PathProgramCache]: Analyzing trace with hash -542713749, now seen corresponding path program 1 times [2024-11-16 04:32:43,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:32:43,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437600679] [2024-11-16 04:32:43,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:32:43,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:32:43,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:32:44,225 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 219 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 04:32:44,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:32:44,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437600679] [2024-11-16 04:32:44,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437600679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:32:44,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:32:44,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:32:44,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896757999] [2024-11-16 04:32:44,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:32:44,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:32:44,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:32:44,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:32:44,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:32:44,229 INFO L87 Difference]: Start difference. First operand 56934 states and 65721 transitions. Second operand has 4 states, 4 states have (on average 107.0) internal successors, (428), 3 states have internal predecessors, (428), 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 04:32:49,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:32:49,882 INFO L93 Difference]: Finished difference Result 116630 states and 134222 transitions. [2024-11-16 04:32:49,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:32:49,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 107.0) internal successors, (428), 3 states have internal predecessors, (428), 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 433 [2024-11-16 04:32:49,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:32:49,975 INFO L225 Difference]: With dead ends: 116630 [2024-11-16 04:32:49,975 INFO L226 Difference]: Without dead ends: 59666 [2024-11-16 04:32:50,020 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 04:32:50,021 INFO L432 NwaCegarLoop]: 1775 mSDtfsCounter, 1151 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 5712 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 1957 SdHoareTripleChecker+Invalid, 5720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 5712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-16 04:32:50,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1151 Valid, 1957 Invalid, 5720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 5712 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-16 04:32:50,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59666 states. [2024-11-16 04:32:50,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59666 to 59666. [2024-11-16 04:32:50,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59666 states, 59665 states have (on average 1.147372831643342) internal successors, (68458), 59665 states have internal predecessors, (68458), 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 04:32:50,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59666 states to 59666 states and 68458 transitions. [2024-11-16 04:32:50,952 INFO L78 Accepts]: Start accepts. Automaton has 59666 states and 68458 transitions. Word has length 433 [2024-11-16 04:32:50,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:32:50,953 INFO L471 AbstractCegarLoop]: Abstraction has 59666 states and 68458 transitions. [2024-11-16 04:32:50,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.0) internal successors, (428), 3 states have internal predecessors, (428), 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 04:32:50,954 INFO L276 IsEmpty]: Start isEmpty. Operand 59666 states and 68458 transitions. [2024-11-16 04:32:50,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 600 [2024-11-16 04:32:50,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:32:50,975 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 04:32:50,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 04:32:50,975 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:32:50,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:32:50,975 INFO L85 PathProgramCache]: Analyzing trace with hash -396059732, now seen corresponding path program 1 times [2024-11-16 04:32:50,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:32:50,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544114763] [2024-11-16 04:32:50,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:32:50,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:32:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:32:51,571 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:32:51,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:32:51,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544114763] [2024-11-16 04:32:51,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544114763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:32:51,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:32:51,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:32:51,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731590754] [2024-11-16 04:32:51,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:32:51,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:32:51,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:32:51,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:32:51,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:32:51,575 INFO L87 Difference]: Start difference. First operand 59666 states and 68458 transitions. Second operand has 3 states, 3 states have (on average 199.66666666666666) internal successors, (599), 3 states have internal predecessors, (599), 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 04:32:57,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:32:57,499 INFO L93 Difference]: Finished difference Result 135857 states and 158948 transitions. [2024-11-16 04:32:57,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:32:57,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 199.66666666666666) internal successors, (599), 3 states have internal predecessors, (599), 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 599 [2024-11-16 04:32:57,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:32:57,595 INFO L225 Difference]: With dead ends: 135857 [2024-11-16 04:32:57,596 INFO L226 Difference]: Without dead ends: 78925 [2024-11-16 04:32:57,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:32:57,623 INFO L432 NwaCegarLoop]: 2833 mSDtfsCounter, 1456 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 4116 mSolverCounterSat, 1789 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1456 SdHoareTripleChecker+Valid, 3012 SdHoareTripleChecker+Invalid, 5905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1789 IncrementalHoareTripleChecker+Valid, 4116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:32:57,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1456 Valid, 3012 Invalid, 5905 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1789 Valid, 4116 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-16 04:32:57,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78925 states. [2024-11-16 04:32:58,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78925 to 78820. [2024-11-16 04:32:58,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78820 states, 78819 states have (on average 1.13827884139611) internal successors, (89718), 78819 states have internal predecessors, (89718), 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 04:32:58,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78820 states to 78820 states and 89718 transitions. [2024-11-16 04:32:58,735 INFO L78 Accepts]: Start accepts. Automaton has 78820 states and 89718 transitions. Word has length 599 [2024-11-16 04:32:58,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:32:58,736 INFO L471 AbstractCegarLoop]: Abstraction has 78820 states and 89718 transitions. [2024-11-16 04:32:58,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 199.66666666666666) internal successors, (599), 3 states have internal predecessors, (599), 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 04:32:58,737 INFO L276 IsEmpty]: Start isEmpty. Operand 78820 states and 89718 transitions. [2024-11-16 04:32:58,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 733 [2024-11-16 04:32:58,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:32:58,747 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 04:32:58,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 04:32:58,747 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:32:58,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:32:58,748 INFO L85 PathProgramCache]: Analyzing trace with hash 797996369, now seen corresponding path program 1 times [2024-11-16 04:32:58,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:32:58,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482790556] [2024-11-16 04:32:58,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:32:58,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:32:58,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:32:59,692 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-11-16 04:32:59,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:32:59,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482790556] [2024-11-16 04:32:59,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482790556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:32:59,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:32:59,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:32:59,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722598037] [2024-11-16 04:32:59,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:32:59,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:32:59,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:32:59,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:32:59,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:32:59,698 INFO L87 Difference]: Start difference. First operand 78820 states and 89718 transitions. Second operand has 3 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 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)