./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-52.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-52.i -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 fb963e37b33825ce0294e2e8f217c8677b17169f1936b98a544da3476a4e00cd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 19:32:59,583 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 19:32:59,659 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 19:32:59,664 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 19:32:59,664 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 19:32:59,683 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 19:32:59,684 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 19:32:59,684 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 19:32:59,685 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 19:32:59,685 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 19:32:59,686 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 19:32:59,686 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 19:32:59,687 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 19:32:59,688 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 19:32:59,688 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 19:32:59,690 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 19:32:59,690 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 19:32:59,690 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 19:32:59,691 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 19:32:59,691 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 19:32:59,691 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 19:32:59,695 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 19:32:59,696 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 19:32:59,696 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 19:32:59,696 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 19:32:59,696 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 19:32:59,696 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 19:32:59,697 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 19:32:59,697 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 19:32:59,697 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 19:32:59,697 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 19:32:59,698 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 19:32:59,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:32:59,698 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 19:32:59,698 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 19:32:59,698 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 19:32:59,699 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 19:32:59,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 19:32:59,699 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 19:32:59,699 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 19:32:59,700 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 19:32:59,700 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 19:32:59,700 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb963e37b33825ce0294e2e8f217c8677b17169f1936b98a544da3476a4e00cd [2024-11-18 19:32:59,969 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 19:32:59,997 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 19:33:00,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 19:33:00,001 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 19:33:00,002 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 19:33:00,003 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-52.i [2024-11-18 19:33:01,503 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 19:33:01,739 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 19:33:01,743 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-52.i [2024-11-18 19:33:01,757 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20422a37f/2933639dcfc04702b0f32a04712a522e/FLAG41e89d165 [2024-11-18 19:33:01,770 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20422a37f/2933639dcfc04702b0f32a04712a522e [2024-11-18 19:33:01,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 19:33:01,774 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 19:33:01,776 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 19:33:01,776 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 19:33:01,783 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 19:33:01,785 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:33:01" (1/1) ... [2024-11-18 19:33:01,787 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@835feee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:01, skipping insertion in model container [2024-11-18 19:33:01,788 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:33:01" (1/1) ... [2024-11-18 19:33:01,839 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 19:33:02,008 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/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-52.i[916,929] [2024-11-18 19:33:02,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:33:02,173 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 19:33:02,207 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/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-52.i[916,929] [2024-11-18 19:33:02,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:33:02,344 INFO L204 MainTranslator]: Completed translation [2024-11-18 19:33:02,345 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:02 WrapperNode [2024-11-18 19:33:02,345 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 19:33:02,346 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 19:33:02,347 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 19:33:02,347 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 19:33:02,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:02" (1/1) ... [2024-11-18 19:33:02,372 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:02" (1/1) ... [2024-11-18 19:33:02,422 INFO L138 Inliner]: procedures = 26, calls = 86, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 533 [2024-11-18 19:33:02,423 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 19:33:02,424 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 19:33:02,424 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 19:33:02,424 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 19:33:02,440 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:02" (1/1) ... [2024-11-18 19:33:02,440 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:02" (1/1) ... [2024-11-18 19:33:02,450 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:02" (1/1) ... [2024-11-18 19:33:02,487 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]. [2024-11-18 19:33:02,488 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:02" (1/1) ... [2024-11-18 19:33:02,488 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:02" (1/1) ... [2024-11-18 19:33:02,515 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:02" (1/1) ... [2024-11-18 19:33:02,528 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:02" (1/1) ... [2024-11-18 19:33:02,538 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:02" (1/1) ... [2024-11-18 19:33:02,549 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:02" (1/1) ... [2024-11-18 19:33:02,566 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 19:33:02,568 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 19:33:02,568 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 19:33:02,568 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 19:33:02,569 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:02" (1/1) ... [2024-11-18 19:33:02,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:33:02,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:33:02,607 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) [2024-11-18 19:33:02,614 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 [2024-11-18 19:33:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 19:33:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 19:33:02,666 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 19:33:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 19:33:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 19:33:02,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 19:33:02,815 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 19:33:02,818 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 19:33:03,624 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-18 19:33:03,625 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 19:33:03,653 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 19:33:03,657 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 19:33:03,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:33:03 BoogieIcfgContainer [2024-11-18 19:33:03,658 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 19:33:03,660 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 19:33:03,660 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 19:33:03,665 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 19:33:03,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:33:01" (1/3) ... [2024-11-18 19:33:03,666 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32308022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:33:03, skipping insertion in model container [2024-11-18 19:33:03,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:02" (2/3) ... [2024-11-18 19:33:03,668 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32308022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:33:03, skipping insertion in model container [2024-11-18 19:33:03,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:33:03" (3/3) ... [2024-11-18 19:33:03,669 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-52.i [2024-11-18 19:33:03,687 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 19:33:03,688 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 19:33:03,775 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 19:33:03,786 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;@3d5f527b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 19:33:03,787 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 19:33:03,794 INFO L276 IsEmpty]: Start isEmpty. Operand has 221 states, 145 states have (on average 1.5379310344827586) internal successors, (223), 146 states have internal predecessors, (223), 73 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-18 19:33:03,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2024-11-18 19:33:03,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:33:03,855 INFO L215 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:33:03,856 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:33:03,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:33:03,863 INFO L85 PathProgramCache]: Analyzing trace with hash 422843408, now seen corresponding path program 1 times [2024-11-18 19:33:03,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:33:03,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617930775] [2024-11-18 19:33:03,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:33:03,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:33:04,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:33:04,548 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 10368 trivial. 0 not checked. [2024-11-18 19:33:04,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:33:04,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617930775] [2024-11-18 19:33:04,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617930775] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 19:33:04,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30621295] [2024-11-18 19:33:04,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:33:04,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 19:33:04,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:33:04,554 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) [2024-11-18 19:33:04,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 19:33:04,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:33:04,882 INFO L255 TraceCheckSpWp]: Trace formula consists of 1054 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 19:33:04,960 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 19:33:05,044 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 10368 trivial. 0 not checked. [2024-11-18 19:33:05,046 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 19:33:05,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30621295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:33:05,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 19:33:05,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 19:33:05,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573338101] [2024-11-18 19:33:05,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:33:05,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 19:33:05,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:33:05,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 19:33:05,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:33:05,094 INFO L87 Difference]: Start difference. First operand has 221 states, 145 states have (on average 1.5379310344827586) internal successors, (223), 146 states have internal predecessors, (223), 73 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) Second operand has 2 states, 2 states have (on average 49.5) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 2 states have call successors, (73) [2024-11-18 19:33:05,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:33:05,172 INFO L93 Difference]: Finished difference Result 435 states and 805 transitions. [2024-11-18 19:33:05,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 19:33:05,175 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 49.5) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 2 states have call successors, (73) Word has length 459 [2024-11-18 19:33:05,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:33:05,187 INFO L225 Difference]: With dead ends: 435 [2024-11-18 19:33:05,188 INFO L226 Difference]: Without dead ends: 217 [2024-11-18 19:33:05,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:33:05,204 INFO L432 NwaCegarLoop]: 361 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:33:05,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:33:05,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-11-18 19:33:05,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2024-11-18 19:33:05,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 142 states have (on average 1.5140845070422535) internal successors, (215), 142 states have internal predecessors, (215), 73 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-18 19:33:05,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 361 transitions. [2024-11-18 19:33:05,291 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 361 transitions. Word has length 459 [2024-11-18 19:33:05,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:33:05,293 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 361 transitions. [2024-11-18 19:33:05,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 49.5) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 2 states have call successors, (73) [2024-11-18 19:33:05,293 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 361 transitions. [2024-11-18 19:33:05,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2024-11-18 19:33:05,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:33:05,308 INFO L215 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:33:05,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-18 19:33:05,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 19:33:05,509 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:33:05,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:33:05,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1363911630, now seen corresponding path program 1 times [2024-11-18 19:33:05,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:33:05,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430431872] [2024-11-18 19:33:05,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:33:05,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:33:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:33:06,080 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2024-11-18 19:33:06,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:33:06,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430431872] [2024-11-18 19:33:06,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430431872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:33:06,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:33:06,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:33:06,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355210488] [2024-11-18 19:33:06,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:33:06,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:33:06,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:33:06,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:33:06,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:33:06,092 INFO L87 Difference]: Start difference. First operand 217 states and 361 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-18 19:33:06,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:33:06,240 INFO L93 Difference]: Finished difference Result 645 states and 1077 transitions. [2024-11-18 19:33:06,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:33:06,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 459 [2024-11-18 19:33:06,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:33:06,252 INFO L225 Difference]: With dead ends: 645 [2024-11-18 19:33:06,255 INFO L226 Difference]: Without dead ends: 431 [2024-11-18 19:33:06,257 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 [2024-11-18 19:33:06,259 INFO L432 NwaCegarLoop]: 425 mSDtfsCounter, 220 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:33:06,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 759 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 19:33:06,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2024-11-18 19:33:06,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 428. [2024-11-18 19:33:06,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 279 states have (on average 1.5125448028673836) internal successors, (422), 279 states have internal predecessors, (422), 146 states have call successors, (146), 2 states have call predecessors, (146), 2 states have return successors, (146), 146 states have call predecessors, (146), 146 states have call successors, (146) [2024-11-18 19:33:06,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 714 transitions. [2024-11-18 19:33:06,350 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 714 transitions. Word has length 459 [2024-11-18 19:33:06,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:33:06,352 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 714 transitions. [2024-11-18 19:33:06,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-18 19:33:06,353 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 714 transitions. [2024-11-18 19:33:06,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2024-11-18 19:33:06,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:33:06,364 INFO L215 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:33:06,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 19:33:06,365 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:33:06,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:33:06,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1127742639, now seen corresponding path program 1 times [2024-11-18 19:33:06,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:33:06,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718336371] [2024-11-18 19:33:06,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:33:06,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:33:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:33:06,661 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2024-11-18 19:33:06,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:33:06,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718336371] [2024-11-18 19:33:06,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718336371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:33:06,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:33:06,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:33:06,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155858902] [2024-11-18 19:33:06,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:33:06,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:33:06,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:33:06,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:33:06,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:33:06,665 INFO L87 Difference]: Start difference. First operand 428 states and 714 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-18 19:33:06,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:33:06,778 INFO L93 Difference]: Finished difference Result 1246 states and 2074 transitions. [2024-11-18 19:33:06,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:33:06,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 460 [2024-11-18 19:33:06,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:33:06,794 INFO L225 Difference]: With dead ends: 1246 [2024-11-18 19:33:06,795 INFO L226 Difference]: Without dead ends: 821 [2024-11-18 19:33:06,797 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 [2024-11-18 19:33:06,798 INFO L432 NwaCegarLoop]: 580 mSDtfsCounter, 310 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:33:06,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 933 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:33:06,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2024-11-18 19:33:06,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 486. [2024-11-18 19:33:06,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 337 states have (on average 1.5608308605341246) internal successors, (526), 337 states have internal predecessors, (526), 146 states have call successors, (146), 2 states have call predecessors, (146), 2 states have return successors, (146), 146 states have call predecessors, (146), 146 states have call successors, (146) [2024-11-18 19:33:06,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 818 transitions. [2024-11-18 19:33:06,885 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 818 transitions. Word has length 460 [2024-11-18 19:33:06,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:33:06,888 INFO L471 AbstractCegarLoop]: Abstraction has 486 states and 818 transitions. [2024-11-18 19:33:06,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-18 19:33:06,889 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 818 transitions. [2024-11-18 19:33:06,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2024-11-18 19:33:06,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:33:06,899 INFO L215 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:33:06,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 19:33:06,900 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:33:06,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:33:06,900 INFO L85 PathProgramCache]: Analyzing trace with hash -908887921, now seen corresponding path program 1 times [2024-11-18 19:33:06,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:33:06,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426749697] [2024-11-18 19:33:06,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:33:06,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:33:07,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:33:07,456 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2024-11-18 19:33:07,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:33:07,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426749697] [2024-11-18 19:33:07,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426749697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:33:07,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:33:07,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:33:07,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187071073] [2024-11-18 19:33:07,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:33:07,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:33:07,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:33:07,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:33:07,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:33:07,464 INFO L87 Difference]: Start difference. First operand 486 states and 818 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-18 19:33:08,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:33:08,394 INFO L93 Difference]: Finished difference Result 1756 states and 2966 transitions. [2024-11-18 19:33:08,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:33:08,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 460 [2024-11-18 19:33:08,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:33:08,406 INFO L225 Difference]: With dead ends: 1756 [2024-11-18 19:33:08,406 INFO L226 Difference]: Without dead ends: 1273 [2024-11-18 19:33:08,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:33:08,411 INFO L432 NwaCegarLoop]: 412 mSDtfsCounter, 522 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 19:33:08,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 1245 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 19:33:08,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1273 states. [2024-11-18 19:33:08,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1273 to 1264. [2024-11-18 19:33:08,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 919 states have (on average 1.589771490750816) internal successors, (1461), 921 states have internal predecessors, (1461), 338 states have call successors, (338), 6 states have call predecessors, (338), 6 states have return successors, (338), 336 states have call predecessors, (338), 338 states have call successors, (338) [2024-11-18 19:33:08,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 2137 transitions. [2024-11-18 19:33:08,593 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 2137 transitions. Word has length 460 [2024-11-18 19:33:08,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:33:08,594 INFO L471 AbstractCegarLoop]: Abstraction has 1264 states and 2137 transitions. [2024-11-18 19:33:08,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-18 19:33:08,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 2137 transitions. [2024-11-18 19:33:08,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2024-11-18 19:33:08,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:33:08,603 INFO L215 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:33:08,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 19:33:08,604 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:33:08,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:33:08,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1734895735, now seen corresponding path program 1 times [2024-11-18 19:33:08,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:33:08,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929495915] [2024-11-18 19:33:08,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:33:08,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:33:08,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:33:08,942 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2024-11-18 19:33:08,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:33:08,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929495915] [2024-11-18 19:33:08,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929495915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:33:08,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:33:08,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:33:08,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273152788] [2024-11-18 19:33:08,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:33:08,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:33:08,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:33:08,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:33:08,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:33:08,947 INFO L87 Difference]: Start difference. First operand 1264 states and 2137 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-18 19:33:09,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:33:09,267 INFO L93 Difference]: Finished difference Result 2674 states and 4517 transitions. [2024-11-18 19:33:09,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:33:09,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 460 [2024-11-18 19:33:09,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:33:09,283 INFO L225 Difference]: With dead ends: 2674 [2024-11-18 19:33:09,284 INFO L226 Difference]: Without dead ends: 1413 [2024-11-18 19:33:09,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:33:09,292 INFO L432 NwaCegarLoop]: 556 mSDtfsCounter, 406 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 1331 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 19:33:09,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 1331 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 19:33:09,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1413 states. [2024-11-18 19:33:09,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1413 to 1405. [2024-11-18 19:33:09,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1405 states, 1036 states have (on average 1.5916988416988418) internal successors, (1649), 1039 states have internal predecessors, (1649), 361 states have call successors, (361), 7 states have call predecessors, (361), 7 states have return successors, (361), 358 states have call predecessors, (361), 361 states have call successors, (361) [2024-11-18 19:33:09,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 2371 transitions. [2024-11-18 19:33:09,477 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 2371 transitions. Word has length 460 [2024-11-18 19:33:09,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:33:09,478 INFO L471 AbstractCegarLoop]: Abstraction has 1405 states and 2371 transitions. [2024-11-18 19:33:09,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-18 19:33:09,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 2371 transitions. [2024-11-18 19:33:09,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-11-18 19:33:09,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:33:09,489 INFO L215 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:33:09,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 19:33:09,489 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:33:09,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:33:09,490 INFO L85 PathProgramCache]: Analyzing trace with hash 838285670, now seen corresponding path program 1 times [2024-11-18 19:33:09,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:33:09,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227417712] [2024-11-18 19:33:09,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:33:09,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:33:09,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:33:09,883 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2024-11-18 19:33:09,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:33:09,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227417712] [2024-11-18 19:33:09,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227417712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:33:09,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:33:09,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:33:09,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552381339] [2024-11-18 19:33:09,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:33:09,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:33:09,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:33:09,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:33:09,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:33:09,887 INFO L87 Difference]: Start difference. First operand 1405 states and 2371 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-18 19:33:10,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:33:10,357 INFO L93 Difference]: Finished difference Result 2807 states and 4739 transitions. [2024-11-18 19:33:10,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:33:10,358 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 461 [2024-11-18 19:33:10,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:33:10,369 INFO L225 Difference]: With dead ends: 2807 [2024-11-18 19:33:10,369 INFO L226 Difference]: Without dead ends: 1405 [2024-11-18 19:33:10,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:33:10,376 INFO L432 NwaCegarLoop]: 352 mSDtfsCounter, 346 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 19:33:10,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 555 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 19:33:10,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1405 states. [2024-11-18 19:33:10,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1405 to 1405. [2024-11-18 19:33:10,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1405 states, 1036 states have (on average 1.584942084942085) internal successors, (1642), 1039 states have internal predecessors, (1642), 361 states have call successors, (361), 7 states have call predecessors, (361), 7 states have return successors, (361), 358 states have call predecessors, (361), 361 states have call successors, (361) [2024-11-18 19:33:10,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 2364 transitions. [2024-11-18 19:33:10,542 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 2364 transitions. Word has length 461 [2024-11-18 19:33:10,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:33:10,544 INFO L471 AbstractCegarLoop]: Abstraction has 1405 states and 2364 transitions. [2024-11-18 19:33:10,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-18 19:33:10,544 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 2364 transitions. [2024-11-18 19:33:10,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-11-18 19:33:10,548 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:33:10,549 INFO L215 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:33:10,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 19:33:10,549 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:33:10,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:33:10,550 INFO L85 PathProgramCache]: Analyzing trace with hash 2118149348, now seen corresponding path program 1 times [2024-11-18 19:33:10,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:33:10,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040513454] [2024-11-18 19:33:10,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:33:10,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:33:10,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:33:10,893 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2024-11-18 19:33:10,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:33:10,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040513454] [2024-11-18 19:33:10,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040513454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:33:10,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:33:10,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:33:10,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025460869] [2024-11-18 19:33:10,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:33:10,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:33:10,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:33:10,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:33:10,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:33:10,899 INFO L87 Difference]: Start difference. First operand 1405 states and 2364 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-18 19:33:11,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:33:11,055 INFO L93 Difference]: Finished difference Result 3831 states and 6461 transitions. [2024-11-18 19:33:11,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:33:11,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 461 [2024-11-18 19:33:11,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:33:11,072 INFO L225 Difference]: With dead ends: 3831 [2024-11-18 19:33:11,073 INFO L226 Difference]: Without dead ends: 2429 [2024-11-18 19:33:11,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:33:11,080 INFO L432 NwaCegarLoop]: 552 mSDtfsCounter, 204 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:33:11,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 898 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:33:11,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2429 states. [2024-11-18 19:33:11,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2429 to 2420. [2024-11-18 19:33:11,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2420 states, 1918 states have (on average 1.6157455683003128) internal successors, (3099), 1928 states have internal predecessors, (3099), 487 states have call successors, (487), 14 states have call predecessors, (487), 14 states have return successors, (487), 477 states have call predecessors, (487), 487 states have call successors, (487) [2024-11-18 19:33:11,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 4073 transitions. [2024-11-18 19:33:11,302 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 4073 transitions. Word has length 461 [2024-11-18 19:33:11,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:33:11,303 INFO L471 AbstractCegarLoop]: Abstraction has 2420 states and 4073 transitions. [2024-11-18 19:33:11,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-18 19:33:11,303 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 4073 transitions. [2024-11-18 19:33:11,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2024-11-18 19:33:11,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:33:11,309 INFO L215 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:33:11,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 19:33:11,310 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:33:11,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:33:11,311 INFO L85 PathProgramCache]: Analyzing trace with hash 33025020, now seen corresponding path program 1 times [2024-11-18 19:33:11,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:33:11,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660439511] [2024-11-18 19:33:11,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:33:11,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:33:11,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:33:12,275 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2024-11-18 19:33:12,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:33:12,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660439511] [2024-11-18 19:33:12,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660439511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:33:12,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:33:12,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 19:33:12,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461487191] [2024-11-18 19:33:12,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:33:12,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 19:33:12,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:33:12,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 19:33:12,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-18 19:33:12,278 INFO L87 Difference]: Start difference. First operand 2420 states and 4073 transitions. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 2 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 2 states have call predecessors, (73), 2 states have call successors, (73) [2024-11-18 19:33:14,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:33:14,037 INFO L93 Difference]: Finished difference Result 9153 states and 15414 transitions. [2024-11-18 19:33:14,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 19:33:14,038 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 2 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 2 states have call predecessors, (73), 2 states have call successors, (73) Word has length 462 [2024-11-18 19:33:14,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:33:14,079 INFO L225 Difference]: With dead ends: 9153 [2024-11-18 19:33:14,080 INFO L226 Difference]: Without dead ends: 6736 [2024-11-18 19:33:14,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-18 19:33:14,091 INFO L432 NwaCegarLoop]: 502 mSDtfsCounter, 1397 mSDsluCounter, 1301 mSDsCounter, 0 mSdLazyCounter, 1092 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1397 SdHoareTripleChecker+Valid, 1803 SdHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 1092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-18 19:33:14,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1397 Valid, 1803 Invalid, 1294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 1092 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-18 19:33:14,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6736 states. [2024-11-18 19:33:14,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6736 to 4851. [2024-11-18 19:33:14,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4851 states, 4111 states have (on average 1.6553150085137436) internal successors, (6805), 4135 states have internal predecessors, (6805), 711 states have call successors, (711), 28 states have call predecessors, (711), 28 states have return successors, (711), 687 states have call predecessors, (711), 711 states have call successors, (711) [2024-11-18 19:33:14,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4851 states to 4851 states and 8227 transitions. [2024-11-18 19:33:14,500 INFO L78 Accepts]: Start accepts. Automaton has 4851 states and 8227 transitions. Word has length 462 [2024-11-18 19:33:14,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:33:14,501 INFO L471 AbstractCegarLoop]: Abstraction has 4851 states and 8227 transitions. [2024-11-18 19:33:14,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 2 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 2 states have call predecessors, (73), 2 states have call successors, (73) [2024-11-18 19:33:14,502 INFO L276 IsEmpty]: Start isEmpty. Operand 4851 states and 8227 transitions. [2024-11-18 19:33:14,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2024-11-18 19:33:14,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:33:14,512 INFO L215 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:33:14,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 19:33:14,513 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:33:14,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:33:14,513 INFO L85 PathProgramCache]: Analyzing trace with hash 518711356, now seen corresponding path program 1 times [2024-11-18 19:33:14,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:33:14,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410360355] [2024-11-18 19:33:14,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:33:14,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:33:14,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:33:15,189 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2024-11-18 19:33:15,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:33:15,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410360355] [2024-11-18 19:33:15,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410360355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:33:15,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:33:15,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:33:15,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832666474] [2024-11-18 19:33:15,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:33:15,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:33:15,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:33:15,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:33:15,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:33:15,196 INFO L87 Difference]: Start difference. First operand 4851 states and 8227 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-18 19:33:16,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:33:16,187 INFO L93 Difference]: Finished difference Result 22003 states and 37021 transitions. [2024-11-18 19:33:16,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:33:16,187 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 462 [2024-11-18 19:33:16,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:33:16,288 INFO L225 Difference]: With dead ends: 22003 [2024-11-18 19:33:16,289 INFO L226 Difference]: Without dead ends: 17155 [2024-11-18 19:33:16,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:33:16,305 INFO L432 NwaCegarLoop]: 440 mSDtfsCounter, 733 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:33:16,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 1315 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 19:33:16,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17155 states. [2024-11-18 19:33:17,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17155 to 17141. [2024-11-18 19:33:17,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17141 states, 14520 states have (on average 1.6235537190082645) internal successors, (23574), 14624 states have internal predecessors, (23574), 2508 states have call successors, (2508), 112 states have call predecessors, (2508), 112 states have return successors, (2508), 2404 states have call predecessors, (2508), 2508 states have call successors, (2508) [2024-11-18 19:33:17,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17141 states to 17141 states and 28590 transitions. [2024-11-18 19:33:17,741 INFO L78 Accepts]: Start accepts. Automaton has 17141 states and 28590 transitions. Word has length 462 [2024-11-18 19:33:17,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:33:17,743 INFO L471 AbstractCegarLoop]: Abstraction has 17141 states and 28590 transitions. [2024-11-18 19:33:17,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-18 19:33:17,744 INFO L276 IsEmpty]: Start isEmpty. Operand 17141 states and 28590 transitions. [2024-11-18 19:33:17,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2024-11-18 19:33:17,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:33:17,769 INFO L215 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:33:17,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 19:33:17,769 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:33:17,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:33:17,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1170232386, now seen corresponding path program 1 times [2024-11-18 19:33:17,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:33:17,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523560467] [2024-11-18 19:33:17,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:33:17,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:33:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:33:35,201 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2024-11-18 19:33:35,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:33:35,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523560467] [2024-11-18 19:33:35,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523560467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:33:35,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:33:35,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-18 19:33:35,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591575589] [2024-11-18 19:33:35,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:33:35,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-18 19:33:35,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:33:35,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-18 19:33:35,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2024-11-18 19:33:35,205 INFO L87 Difference]: Start difference. First operand 17141 states and 28590 transitions. Second operand has 18 states, 18 states have (on average 5.555555555555555) internal successors, (100), 18 states have internal predecessors, (100), 4 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 3 states have call predecessors, (73), 4 states have call successors, (73) [2024-11-18 19:33:39,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:33:39,741 INFO L93 Difference]: Finished difference Result 43355 states and 71821 transitions. [2024-11-18 19:33:39,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 19:33:39,742 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.555555555555555) internal successors, (100), 18 states have internal predecessors, (100), 4 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 3 states have call predecessors, (73), 4 states have call successors, (73) Word has length 462 [2024-11-18 19:33:39,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:33:39,857 INFO L225 Difference]: With dead ends: 43355 [2024-11-18 19:33:39,857 INFO L226 Difference]: Without dead ends: 26217 [2024-11-18 19:33:39,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=213, Invalid=657, Unknown=0, NotChecked=0, Total=870 [2024-11-18 19:33:39,919 INFO L432 NwaCegarLoop]: 335 mSDtfsCounter, 540 mSDsluCounter, 2963 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 3298 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:33:39,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [540 Valid, 3298 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 1071 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-18 19:33:39,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26217 states. [2024-11-18 19:33:41,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26217 to 24113. [2024-11-18 19:33:41,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24113 states, 21417 states have (on average 1.6324415184199468) internal successors, (34962), 21521 states have internal predecessors, (34962), 2581 states have call successors, (2581), 114 states have call predecessors, (2581), 114 states have return successors, (2581), 2477 states have call predecessors, (2581), 2581 states have call successors, (2581) [2024-11-18 19:33:41,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24113 states to 24113 states and 40124 transitions. [2024-11-18 19:33:41,520 INFO L78 Accepts]: Start accepts. Automaton has 24113 states and 40124 transitions. Word has length 462 [2024-11-18 19:33:41,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:33:41,521 INFO L471 AbstractCegarLoop]: Abstraction has 24113 states and 40124 transitions. [2024-11-18 19:33:41,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.555555555555555) internal successors, (100), 18 states have internal predecessors, (100), 4 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 3 states have call predecessors, (73), 4 states have call successors, (73) [2024-11-18 19:33:41,522 INFO L276 IsEmpty]: Start isEmpty. Operand 24113 states and 40124 transitions. [2024-11-18 19:33:41,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2024-11-18 19:33:41,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:33:41,541 INFO L215 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:33:41,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 19:33:41,541 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:33:41,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:33:41,542 INFO L85 PathProgramCache]: Analyzing trace with hash -912066948, now seen corresponding path program 1 times [2024-11-18 19:33:41,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:33:41,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816218104] [2024-11-18 19:33:41,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:33:41,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:33:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:33:41,964 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2024-11-18 19:33:41,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:33:41,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816218104] [2024-11-18 19:33:41,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816218104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:33:41,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:33:41,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:33:41,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150995490] [2024-11-18 19:33:41,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:33:41,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:33:41,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:33:41,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:33:41,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:33:41,967 INFO L87 Difference]: Start difference. First operand 24113 states and 40124 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-18 19:33:43,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:33:43,236 INFO L93 Difference]: Finished difference Result 42483 states and 70615 transitions. [2024-11-18 19:33:43,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:33:43,237 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 462 [2024-11-18 19:33:43,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:33:43,332 INFO L225 Difference]: With dead ends: 42483 [2024-11-18 19:33:43,332 INFO L226 Difference]: Without dead ends: 25345 [2024-11-18 19:33:43,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:33:43,372 INFO L432 NwaCegarLoop]: 692 mSDtfsCounter, 377 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 1545 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 19:33:43,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 1545 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 19:33:43,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25345 states. [2024-11-18 19:33:44,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25345 to 24113. [2024-11-18 19:33:44,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24113 states, 21417 states have (on average 1.6232899098846711) internal successors, (34766), 21521 states have internal predecessors, (34766), 2581 states have call successors, (2581), 114 states have call predecessors, (2581), 114 states have return successors, (2581), 2477 states have call predecessors, (2581), 2581 states have call successors, (2581) [2024-11-18 19:33:44,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24113 states to 24113 states and 39928 transitions. [2024-11-18 19:33:44,808 INFO L78 Accepts]: Start accepts. Automaton has 24113 states and 39928 transitions. Word has length 462 [2024-11-18 19:33:44,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:33:44,809 INFO L471 AbstractCegarLoop]: Abstraction has 24113 states and 39928 transitions. [2024-11-18 19:33:44,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-18 19:33:44,810 INFO L276 IsEmpty]: Start isEmpty. Operand 24113 states and 39928 transitions. [2024-11-18 19:33:44,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2024-11-18 19:33:44,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:33:44,830 INFO L215 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:33:44,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 19:33:44,830 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:33:44,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:33:44,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1810172606, now seen corresponding path program 1 times [2024-11-18 19:33:44,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:33:44,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031771783] [2024-11-18 19:33:44,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:33:44,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:33:45,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:33:53,890 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2024-11-18 19:33:53,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:33:53,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031771783] [2024-11-18 19:33:53,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031771783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:33:53,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:33:53,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-18 19:33:53,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726694621] [2024-11-18 19:33:53,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:33:53,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-18 19:33:53,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:33:53,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-18 19:33:53,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-18 19:33:53,893 INFO L87 Difference]: Start difference. First operand 24113 states and 39928 transitions. Second operand has 14 states, 14 states have (on average 7.142857142857143) internal successors, (100), 14 states have internal predecessors, (100), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-18 19:33:57,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:33:57,157 INFO L93 Difference]: Finished difference Result 60743 states and 100099 transitions. [2024-11-18 19:33:57,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 19:33:57,158 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.142857142857143) internal successors, (100), 14 states have internal predecessors, (100), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 462 [2024-11-18 19:33:57,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:33:57,344 INFO L225 Difference]: With dead ends: 60743 [2024-11-18 19:33:57,344 INFO L226 Difference]: Without dead ends: 43605 [2024-11-18 19:33:57,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2024-11-18 19:33:57,413 INFO L432 NwaCegarLoop]: 343 mSDtfsCounter, 401 mSDsluCounter, 2117 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 2460 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-18 19:33:57,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 2460 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-18 19:33:57,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43605 states. [2024-11-18 19:34:00,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43605 to 42257. [2024-11-18 19:34:00,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42257 states, 36941 states have (on average 1.602663706992231) internal successors, (59204), 37149 states have internal predecessors, (59204), 5089 states have call successors, (5089), 226 states have call predecessors, (5089), 226 states have return successors, (5089), 4881 states have call predecessors, (5089), 5089 states have call successors, (5089) [2024-11-18 19:34:00,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42257 states to 42257 states and 69382 transitions. [2024-11-18 19:34:00,273 INFO L78 Accepts]: Start accepts. Automaton has 42257 states and 69382 transitions. Word has length 462 [2024-11-18 19:34:00,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:34:00,274 INFO L471 AbstractCegarLoop]: Abstraction has 42257 states and 69382 transitions. [2024-11-18 19:34:00,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.142857142857143) internal successors, (100), 14 states have internal predecessors, (100), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2024-11-18 19:34:00,275 INFO L276 IsEmpty]: Start isEmpty. Operand 42257 states and 69382 transitions. [2024-11-18 19:34:00,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2024-11-18 19:34:00,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:34:00,294 INFO L215 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:34:00,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 19:34:00,294 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:34:00,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:34:00,295 INFO L85 PathProgramCache]: Analyzing trace with hash -258883830, now seen corresponding path program 1 times [2024-11-18 19:34:00,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:34:00,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044430225] [2024-11-18 19:34:00,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:34:00,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:34:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat