./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label56.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label56.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 91e42c16ff11f401cb1a0bb363f1df3f27964ca291eb9a5ac2a88f9cc95fa9e5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-10 23:55:21,642 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-10 23:55:21,711 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-10 23:55:21,722 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-10 23:55:21,722 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-10 23:55:21,766 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-10 23:55:21,768 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-10 23:55:21,768 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-10 23:55:21,769 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-10 23:55:21,774 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-10 23:55:21,774 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-10 23:55:21,775 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-10 23:55:21,775 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-10 23:55:21,775 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-10 23:55:21,776 INFO L153 SettingsManager]: * Use SBE=true [2024-10-10 23:55:21,776 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-10 23:55:21,776 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-10 23:55:21,777 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-10 23:55:21,777 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-10 23:55:21,777 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-10 23:55:21,777 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-10 23:55:21,779 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-10 23:55:21,779 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-10 23:55:21,779 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-10 23:55:21,780 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-10 23:55:21,780 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-10 23:55:21,780 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-10 23:55:21,780 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-10 23:55:21,781 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-10 23:55:21,781 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-10 23:55:21,781 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-10 23:55:21,781 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-10 23:55:21,782 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-10 23:55:21,782 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-10 23:55:21,782 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-10 23:55:21,783 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-10 23:55:21,783 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-10 23:55:21,784 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-10 23:55:21,784 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-10 23:55:21,784 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-10 23:55:21,784 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-10 23:55:21,785 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-10 23:55:21,785 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91e42c16ff11f401cb1a0bb363f1df3f27964ca291eb9a5ac2a88f9cc95fa9e5 [2024-10-10 23:55:22,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-10 23:55:22,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-10 23:55:22,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-10 23:55:22,074 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-10 23:55:22,075 INFO L274 PluginConnector]: CDTParser initialized [2024-10-10 23:55:22,076 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label56.c [2024-10-10 23:55:23,510 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-10 23:55:23,960 INFO L384 CDTParser]: Found 1 translation units. [2024-10-10 23:55:23,962 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label56.c [2024-10-10 23:55:23,995 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/845835779/a17895f268994bc09e48aaa36d7b1f71/FLAG8ff96c75e [2024-10-10 23:55:24,012 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/845835779/a17895f268994bc09e48aaa36d7b1f71 [2024-10-10 23:55:24,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-10 23:55:24,017 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-10 23:55:24,018 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-10 23:55:24,018 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-10 23:55:24,024 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-10 23:55:24,026 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 11:55:24" (1/1) ... [2024-10-10 23:55:24,027 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a649a37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:55:24, skipping insertion in model container [2024-10-10 23:55:24,028 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 11:55:24" (1/1) ... [2024-10-10 23:55:24,122 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-10 23:55:24,340 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label56.c[5125,5138] [2024-10-10 23:55:25,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-10 23:55:25,045 INFO L200 MainTranslator]: Completed pre-run [2024-10-10 23:55:25,061 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label56.c[5125,5138] [2024-10-10 23:55:25,349 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-10 23:55:25,376 INFO L204 MainTranslator]: Completed translation [2024-10-10 23:55:25,377 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:55:25 WrapperNode [2024-10-10 23:55:25,378 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-10 23:55:25,379 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-10 23:55:25,379 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-10 23:55:25,379 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-10 23:55:25,387 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:55:25" (1/1) ... [2024-10-10 23:55:25,446 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:55:25" (1/1) ... [2024-10-10 23:55:25,637 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 4135 [2024-10-10 23:55:25,638 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-10 23:55:25,639 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-10 23:55:25,639 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-10 23:55:25,639 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-10 23:55:25,651 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:55:25" (1/1) ... [2024-10-10 23:55:25,651 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:55:25" (1/1) ... [2024-10-10 23:55:25,681 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:55:25" (1/1) ... [2024-10-10 23:55:25,833 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-10 23:55:25,837 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:55:25" (1/1) ... [2024-10-10 23:55:25,837 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:55:25" (1/1) ... [2024-10-10 23:55:25,899 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:55:25" (1/1) ... [2024-10-10 23:55:25,918 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:55:25" (1/1) ... [2024-10-10 23:55:25,986 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:55:25" (1/1) ... [2024-10-10 23:55:26,002 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:55:25" (1/1) ... [2024-10-10 23:55:26,029 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-10 23:55:26,031 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-10 23:55:26,031 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-10 23:55:26,032 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-10 23:55:26,033 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:55:25" (1/1) ... [2024-10-10 23:55:26,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-10 23:55:26,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-10 23:55:26,067 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-10 23:55:26,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-10 23:55:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-10 23:55:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-10 23:55:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-10 23:55:26,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-10 23:55:26,181 INFO L238 CfgBuilder]: Building ICFG [2024-10-10 23:55:26,183 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-10 23:55:29,454 INFO L? ?]: Removed 639 outVars from TransFormulas that were not future-live. [2024-10-10 23:55:29,454 INFO L287 CfgBuilder]: Performing block encoding [2024-10-10 23:55:29,519 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-10 23:55:29,519 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-10 23:55:29,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 11:55:29 BoogieIcfgContainer [2024-10-10 23:55:29,519 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-10 23:55:29,521 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-10 23:55:29,521 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-10 23:55:29,525 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-10 23:55:29,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 11:55:24" (1/3) ... [2024-10-10 23:55:29,526 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70242b85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 11:55:29, skipping insertion in model container [2024-10-10 23:55:29,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:55:25" (2/3) ... [2024-10-10 23:55:29,528 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70242b85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 11:55:29, skipping insertion in model container [2024-10-10 23:55:29,528 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 11:55:29" (3/3) ... [2024-10-10 23:55:29,530 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label56.c [2024-10-10 23:55:29,547 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-10 23:55:29,547 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-10 23:55:29,636 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-10 23:55:29,643 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;@2bafc53b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-10 23:55:29,643 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-10 23:55:29,653 INFO L276 IsEmpty]: Start isEmpty. Operand has 695 states, 693 states have (on average 1.9942279942279941) internal successors, (1382), 694 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:55:29,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-10 23:55:29,661 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:55:29,662 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:55:29,663 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:55:29,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:55:29,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1992594909, now seen corresponding path program 1 times [2024-10-10 23:55:29,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:55:29,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041087890] [2024-10-10 23:55:29,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:55:29,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:55:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:55:29,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 23:55:29,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:55:29,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041087890] [2024-10-10 23:55:29,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041087890] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:55:29,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:55:29,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-10 23:55:29,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023939183] [2024-10-10 23:55:29,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:55:29,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-10 23:55:29,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:55:29,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-10 23:55:29,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-10 23:55:29,901 INFO L87 Difference]: Start difference. First operand has 695 states, 693 states have (on average 1.9942279942279941) internal successors, (1382), 694 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:55:30,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:55:30,017 INFO L93 Difference]: Finished difference Result 1389 states and 2763 transitions. [2024-10-10 23:55:30,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-10 23:55:30,021 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2024-10-10 23:55:30,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:55:30,046 INFO L225 Difference]: With dead ends: 1389 [2024-10-10 23:55:30,046 INFO L226 Difference]: Without dead ends: 693 [2024-10-10 23:55:30,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-10 23:55:30,060 INFO L432 NwaCegarLoop]: 1317 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1317 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-10 23:55:30,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1317 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-10 23:55:30,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-10-10 23:55:30,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 693. [2024-10-10 23:55:30,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 692 states have (on average 1.903179190751445) internal successors, (1317), 692 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:55:30,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1317 transitions. [2024-10-10 23:55:30,152 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1317 transitions. Word has length 47 [2024-10-10 23:55:30,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:55:30,153 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 1317 transitions. [2024-10-10 23:55:30,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:55:30,153 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1317 transitions. [2024-10-10 23:55:30,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-10 23:55:30,156 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:55:30,156 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:55:30,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-10 23:55:30,156 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:55:30,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:55:30,157 INFO L85 PathProgramCache]: Analyzing trace with hash 135294765, now seen corresponding path program 1 times [2024-10-10 23:55:30,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:55:30,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765478644] [2024-10-10 23:55:30,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:55:30,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:55:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:55:30,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 23:55:30,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:55:30,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765478644] [2024-10-10 23:55:30,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765478644] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:55:30,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:55:30,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:55:30,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243134067] [2024-10-10 23:55:30,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:55:30,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-10 23:55:30,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:55:30,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-10 23:55:30,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-10 23:55:30,525 INFO L87 Difference]: Start difference. First operand 693 states and 1317 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:55:35,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:55:35,299 INFO L93 Difference]: Finished difference Result 2765 states and 5263 transitions. [2024-10-10 23:55:35,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-10 23:55:35,299 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2024-10-10 23:55:35,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:55:35,308 INFO L225 Difference]: With dead ends: 2765 [2024-10-10 23:55:35,308 INFO L226 Difference]: Without dead ends: 2073 [2024-10-10 23:55:35,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-10 23:55:35,311 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 2121 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 3249 mSolverCounterSat, 1678 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2121 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 4927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1678 IncrementalHoareTripleChecker+Valid, 3249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-10-10 23:55:35,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2121 Valid, 130 Invalid, 4927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1678 Valid, 3249 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-10-10 23:55:35,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2073 states. [2024-10-10 23:55:35,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2073 to 2073. [2024-10-10 23:55:35,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2073 states, 2072 states have (on average 1.5564671814671815) internal successors, (3225), 2072 states have internal predecessors, (3225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:55:35,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2073 states to 2073 states and 3225 transitions. [2024-10-10 23:55:35,398 INFO L78 Accepts]: Start accepts. Automaton has 2073 states and 3225 transitions. Word has length 47 [2024-10-10 23:55:35,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:55:35,399 INFO L471 AbstractCegarLoop]: Abstraction has 2073 states and 3225 transitions. [2024-10-10 23:55:35,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:55:35,399 INFO L276 IsEmpty]: Start isEmpty. Operand 2073 states and 3225 transitions. [2024-10-10 23:55:35,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-10-10 23:55:35,408 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:55:35,408 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:55:35,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-10 23:55:35,409 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:55:35,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:55:35,409 INFO L85 PathProgramCache]: Analyzing trace with hash -2136848067, now seen corresponding path program 1 times [2024-10-10 23:55:35,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:55:35,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446135639] [2024-10-10 23:55:35,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:55:35,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:55:35,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:55:36,221 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-10-10 23:55:36,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:55:36,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446135639] [2024-10-10 23:55:36,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446135639] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:55:36,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:55:36,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:55:36,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134543571] [2024-10-10 23:55:36,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:55:36,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-10 23:55:36,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:55:36,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-10 23:55:36,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-10 23:55:36,227 INFO L87 Difference]: Start difference. First operand 2073 states and 3225 transitions. Second operand has 4 states, 4 states have (on average 44.75) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:55:40,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:55:40,491 INFO L93 Difference]: Finished difference Result 6215 states and 9563 transitions. [2024-10-10 23:55:40,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-10 23:55:40,492 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 224 [2024-10-10 23:55:40,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:55:40,508 INFO L225 Difference]: With dead ends: 6215 [2024-10-10 23:55:40,509 INFO L226 Difference]: Without dead ends: 4143 [2024-10-10 23:55:40,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-10 23:55:40,514 INFO L432 NwaCegarLoop]: 628 mSDtfsCounter, 1922 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 4115 mSolverCounterSat, 520 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1922 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 4635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 520 IncrementalHoareTripleChecker+Valid, 4115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-10-10 23:55:40,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1922 Valid, 645 Invalid, 4635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [520 Valid, 4115 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-10-10 23:55:40,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4143 states. [2024-10-10 23:55:40,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4143 to 4143. [2024-10-10 23:55:40,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4143 states, 4142 states have (on average 1.2928536938676967) internal successors, (5355), 4142 states have internal predecessors, (5355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:55:40,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4143 states to 4143 states and 5355 transitions. [2024-10-10 23:55:40,602 INFO L78 Accepts]: Start accepts. Automaton has 4143 states and 5355 transitions. Word has length 224 [2024-10-10 23:55:40,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:55:40,604 INFO L471 AbstractCegarLoop]: Abstraction has 4143 states and 5355 transitions. [2024-10-10 23:55:40,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:55:40,604 INFO L276 IsEmpty]: Start isEmpty. Operand 4143 states and 5355 transitions. [2024-10-10 23:55:40,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2024-10-10 23:55:40,612 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:55:40,613 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:55:40,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-10 23:55:40,613 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:55:40,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:55:40,614 INFO L85 PathProgramCache]: Analyzing trace with hash -538730096, now seen corresponding path program 1 times [2024-10-10 23:55:40,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:55:40,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389477667] [2024-10-10 23:55:40,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:55:40,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:55:40,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:55:41,144 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 23:55:41,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:55:41,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389477667] [2024-10-10 23:55:41,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389477667] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:55:41,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:55:41,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:55:41,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729862323] [2024-10-10 23:55:41,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:55:41,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-10 23:55:41,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:55:41,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-10 23:55:41,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-10 23:55:41,150 INFO L87 Difference]: Start difference. First operand 4143 states and 5355 transitions. Second operand has 4 states, 4 states have (on average 78.25) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:55:43,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:55:43,778 INFO L93 Difference]: Finished difference Result 9028 states and 11974 transitions. [2024-10-10 23:55:43,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-10 23:55:43,778 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 78.25) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 313 [2024-10-10 23:55:43,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:55:43,799 INFO L225 Difference]: With dead ends: 9028 [2024-10-10 23:55:43,799 INFO L226 Difference]: Without dead ends: 5523 [2024-10-10 23:55:43,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-10 23:55:43,806 INFO L432 NwaCegarLoop]: 622 mSDtfsCounter, 529 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2591 mSolverCounterSat, 867 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 3458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 867 IncrementalHoareTripleChecker+Valid, 2591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-10 23:55:43,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 633 Invalid, 3458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [867 Valid, 2591 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-10 23:55:43,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5523 states. [2024-10-10 23:55:43,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5523 to 5523. [2024-10-10 23:55:43,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5523 states, 5522 states have (on average 1.1597247374139805) internal successors, (6404), 5522 states have internal predecessors, (6404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:55:43,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5523 states to 5523 states and 6404 transitions. [2024-10-10 23:55:43,904 INFO L78 Accepts]: Start accepts. Automaton has 5523 states and 6404 transitions. Word has length 313 [2024-10-10 23:55:43,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:55:43,906 INFO L471 AbstractCegarLoop]: Abstraction has 5523 states and 6404 transitions. [2024-10-10 23:55:43,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.25) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:55:43,907 INFO L276 IsEmpty]: Start isEmpty. Operand 5523 states and 6404 transitions. [2024-10-10 23:55:43,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 946 [2024-10-10 23:55:43,928 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:55:43,930 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:55:43,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-10 23:55:43,931 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:55:43,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:55:43,931 INFO L85 PathProgramCache]: Analyzing trace with hash 262319841, now seen corresponding path program 1 times [2024-10-10 23:55:43,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:55:43,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519375814] [2024-10-10 23:55:43,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:55:43,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:55:44,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:55:44,939 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2024-10-10 23:55:44,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:55:44,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519375814] [2024-10-10 23:55:44,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519375814] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:55:44,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:55:44,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-10 23:55:44,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961699640] [2024-10-10 23:55:44,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:55:44,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:55:44,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:55:44,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:55:44,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:55:44,946 INFO L87 Difference]: Start difference. First operand 5523 states and 6404 transitions. Second operand has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 2 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:55:47,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:55:47,022 INFO L93 Difference]: Finished difference Result 11735 states and 14310 transitions. [2024-10-10 23:55:47,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:55:47,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 2 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 945 [2024-10-10 23:55:47,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:55:47,044 INFO L225 Difference]: With dead ends: 11735 [2024-10-10 23:55:47,044 INFO L226 Difference]: Without dead ends: 6903 [2024-10-10 23:55:47,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:55:47,053 INFO L432 NwaCegarLoop]: 381 mSDtfsCounter, 227 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1668 mSolverCounterSat, 602 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 2270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 602 IncrementalHoareTripleChecker+Valid, 1668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-10 23:55:47,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 386 Invalid, 2270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [602 Valid, 1668 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-10 23:55:47,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6903 states. [2024-10-10 23:55:47,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6903 to 6903. [2024-10-10 23:55:47,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6903 states, 6902 states have (on average 1.1493769921761807) internal successors, (7933), 6902 states have internal predecessors, (7933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:55:47,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6903 states to 6903 states and 7933 transitions. [2024-10-10 23:55:47,193 INFO L78 Accepts]: Start accepts. Automaton has 6903 states and 7933 transitions. Word has length 945 [2024-10-10 23:55:47,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:55:47,195 INFO L471 AbstractCegarLoop]: Abstraction has 6903 states and 7933 transitions. [2024-10-10 23:55:47,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 2 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:55:47,196 INFO L276 IsEmpty]: Start isEmpty. Operand 6903 states and 7933 transitions. [2024-10-10 23:55:47,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1013 [2024-10-10 23:55:47,227 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:55:47,227 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:55:47,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-10 23:55:47,228 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:55:47,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:55:47,228 INFO L85 PathProgramCache]: Analyzing trace with hash -248969210, now seen corresponding path program 1 times [2024-10-10 23:55:47,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:55:47,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336908448] [2024-10-10 23:55:47,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:55:47,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:55:47,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:55:48,138 INFO L134 CoverageAnalysis]: Checked inductivity of 848 backedges. 371 proven. 0 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2024-10-10 23:55:48,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:55:48,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336908448] [2024-10-10 23:55:48,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336908448] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:55:48,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:55:48,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-10 23:55:48,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364752482] [2024-10-10 23:55:48,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:55:48,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:55:48,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:55:48,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:55:48,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:55:48,143 INFO L87 Difference]: Start difference. First operand 6903 states and 7933 transitions. Second operand has 3 states, 3 states have (on average 201.33333333333334) internal successors, (604), 2 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:55:50,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:55:50,405 INFO L93 Difference]: Finished difference Result 15185 states and 17691 transitions. [2024-10-10 23:55:50,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:55:50,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 201.33333333333334) internal successors, (604), 2 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1012 [2024-10-10 23:55:50,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:55:50,434 INFO L225 Difference]: With dead ends: 15185 [2024-10-10 23:55:50,434 INFO L226 Difference]: Without dead ends: 8973 [2024-10-10 23:55:50,444 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:55:50,445 INFO L432 NwaCegarLoop]: 418 mSDtfsCounter, 181 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1945 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 2252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 1945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-10 23:55:50,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 424 Invalid, 2252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 1945 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-10 23:55:50,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8973 states. [2024-10-10 23:55:50,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8973 to 8973. [2024-10-10 23:55:50,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8973 states, 8972 states have (on average 1.1329692376281766) internal successors, (10165), 8972 states have internal predecessors, (10165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:55:50,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8973 states to 8973 states and 10165 transitions. [2024-10-10 23:55:50,649 INFO L78 Accepts]: Start accepts. Automaton has 8973 states and 10165 transitions. Word has length 1012 [2024-10-10 23:55:50,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:55:50,651 INFO L471 AbstractCegarLoop]: Abstraction has 8973 states and 10165 transitions. [2024-10-10 23:55:50,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 201.33333333333334) internal successors, (604), 2 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:55:50,652 INFO L276 IsEmpty]: Start isEmpty. Operand 8973 states and 10165 transitions. [2024-10-10 23:55:50,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1064 [2024-10-10 23:55:50,661 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:55:50,662 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:55:50,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-10 23:55:50,662 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:55:50,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:55:50,663 INFO L85 PathProgramCache]: Analyzing trace with hash -371964440, now seen corresponding path program 1 times [2024-10-10 23:55:50,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:55:50,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285547012] [2024-10-10 23:55:50,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:55:50,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:55:50,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:55:52,044 INFO L134 CoverageAnalysis]: Checked inductivity of 967 backedges. 624 proven. 0 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2024-10-10 23:55:52,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:55:52,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285547012] [2024-10-10 23:55:52,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285547012] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:55:52,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:55:52,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:55:52,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567726486] [2024-10-10 23:55:52,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:55:52,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:55:52,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:55:52,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:55:52,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:55:52,049 INFO L87 Difference]: Start difference. First operand 8973 states and 10165 transitions. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:55:53,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:55:53,940 INFO L93 Difference]: Finished difference Result 22775 states and 26257 transitions. [2024-10-10 23:55:53,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:55:53,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1063 [2024-10-10 23:55:53,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:55:53,965 INFO L225 Difference]: With dead ends: 22775 [2024-10-10 23:55:53,965 INFO L226 Difference]: Without dead ends: 14493 [2024-10-10 23:55:53,975 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 [2024-10-10 23:55:53,976 INFO L432 NwaCegarLoop]: 972 mSDtfsCounter, 576 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1956 mSolverCounterSat, 349 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 2305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 349 IncrementalHoareTripleChecker+Valid, 1956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-10 23:55:53,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 977 Invalid, 2305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [349 Valid, 1956 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-10 23:55:53,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14493 states. [2024-10-10 23:55:54,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14493 to 14493. [2024-10-10 23:55:54,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14493 states, 14492 states have (on average 1.114269942036986) internal successors, (16148), 14492 states have internal predecessors, (16148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:55:54,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14493 states to 14493 states and 16148 transitions. [2024-10-10 23:55:54,159 INFO L78 Accepts]: Start accepts. Automaton has 14493 states and 16148 transitions. Word has length 1063 [2024-10-10 23:55:54,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:55:54,160 INFO L471 AbstractCegarLoop]: Abstraction has 14493 states and 16148 transitions. [2024-10-10 23:55:54,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:55:54,161 INFO L276 IsEmpty]: Start isEmpty. Operand 14493 states and 16148 transitions. [2024-10-10 23:55:54,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1099 [2024-10-10 23:55:54,174 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:55:54,174 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:55:54,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-10 23:55:54,175 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:55:54,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:55:54,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1689400497, now seen corresponding path program 1 times [2024-10-10 23:55:54,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:55:54,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508474732] [2024-10-10 23:55:54,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:55:54,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:55:54,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:55:56,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1216 backedges. 573 proven. 576 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-10-10 23:55:56,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:55:56,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508474732] [2024-10-10 23:55:56,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508474732] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-10 23:55:56,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275533798] [2024-10-10 23:55:56,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:55:56,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:55:56,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-10 23:55:56,121 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-10 23:55:56,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-10 23:55:56,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:55:56,449 INFO L255 TraceCheckSpWp]: Trace formula consists of 1285 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-10 23:55:56,477 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-10 23:55:56,664 INFO L134 CoverageAnalysis]: Checked inductivity of 1216 backedges. 547 proven. 0 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2024-10-10 23:55:56,664 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-10 23:55:56,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275533798] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:55:56,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-10 23:55:56,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-10-10 23:55:56,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761383278] [2024-10-10 23:55:56,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:55:56,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:55:56,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:55:56,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:55:56,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-10 23:55:56,668 INFO L87 Difference]: Start difference. First operand 14493 states and 16148 transitions. Second operand has 3 states, 3 states have (on average 216.66666666666666) internal successors, (650), 3 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:55:58,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:55:58,783 INFO L93 Difference]: Finished difference Result 31745 states and 36378 transitions. [2024-10-10 23:55:58,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:55:58,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 216.66666666666666) internal successors, (650), 3 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1098 [2024-10-10 23:55:58,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:55:58,820 INFO L225 Difference]: With dead ends: 31745 [2024-10-10 23:55:58,820 INFO L226 Difference]: Without dead ends: 18633 [2024-10-10 23:55:58,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1104 GetRequests, 1098 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-10 23:55:58,839 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 696 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1845 mSolverCounterSat, 546 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 2391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 546 IncrementalHoareTripleChecker+Valid, 1845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-10 23:55:58,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 210 Invalid, 2391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [546 Valid, 1845 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-10 23:55:58,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18633 states. [2024-10-10 23:55:59,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18633 to 18633. [2024-10-10 23:55:59,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18633 states, 18632 states have (on average 1.1354121940747102) internal successors, (21155), 18632 states have internal predecessors, (21155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:55:59,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18633 states to 18633 states and 21155 transitions. [2024-10-10 23:55:59,106 INFO L78 Accepts]: Start accepts. Automaton has 18633 states and 21155 transitions. Word has length 1098 [2024-10-10 23:55:59,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:55:59,107 INFO L471 AbstractCegarLoop]: Abstraction has 18633 states and 21155 transitions. [2024-10-10 23:55:59,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 216.66666666666666) internal successors, (650), 3 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:55:59,108 INFO L276 IsEmpty]: Start isEmpty. Operand 18633 states and 21155 transitions. [2024-10-10 23:55:59,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1118 [2024-10-10 23:55:59,120 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:55:59,121 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:55:59,139 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-10 23:55:59,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:55:59,322 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:55:59,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:55:59,323 INFO L85 PathProgramCache]: Analyzing trace with hash 61048464, now seen corresponding path program 1 times [2024-10-10 23:55:59,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:55:59,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083586066] [2024-10-10 23:55:59,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:55:59,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:55:59,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:56:01,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 518 proven. 538 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-10-10 23:56:01,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:56:01,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083586066] [2024-10-10 23:56:01,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083586066] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-10 23:56:01,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829986745] [2024-10-10 23:56:01,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:56:01,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:56:01,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-10 23:56:01,641 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-10 23:56:01,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-10 23:56:01,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:56:01,980 INFO L255 TraceCheckSpWp]: Trace formula consists of 1276 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-10 23:56:01,990 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-10 23:56:02,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 919 trivial. 0 not checked. [2024-10-10 23:56:02,109 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-10 23:56:02,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829986745] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:56:02,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-10 23:56:02,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2024-10-10 23:56:02,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435744031] [2024-10-10 23:56:02,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:56:02,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:56:02,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:56:02,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:56:02,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-10-10 23:56:02,113 INFO L87 Difference]: Start difference. First operand 18633 states and 21155 transitions. Second operand has 3 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:56:04,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:56:04,009 INFO L93 Difference]: Finished difference Result 44165 states and 51297 transitions. [2024-10-10 23:56:04,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:56:04,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1117 [2024-10-10 23:56:04,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:56:04,054 INFO L225 Difference]: With dead ends: 44165 [2024-10-10 23:56:04,054 INFO L226 Difference]: Without dead ends: 26913 [2024-10-10 23:56:04,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1124 GetRequests, 1116 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-10-10 23:56:04,077 INFO L432 NwaCegarLoop]: 367 mSDtfsCounter, 680 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1905 mSolverCounterSat, 424 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 2329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 424 IncrementalHoareTripleChecker+Valid, 1905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-10 23:56:04,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [680 Valid, 373 Invalid, 2329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [424 Valid, 1905 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-10 23:56:04,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26913 states. [2024-10-10 23:56:04,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26913 to 25533. [2024-10-10 23:56:04,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25533 states, 25532 states have (on average 1.1313253955820148) internal successors, (28885), 25532 states have internal predecessors, (28885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:56:04,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25533 states to 25533 states and 28885 transitions. [2024-10-10 23:56:04,418 INFO L78 Accepts]: Start accepts. Automaton has 25533 states and 28885 transitions. Word has length 1117 [2024-10-10 23:56:04,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:56:04,419 INFO L471 AbstractCegarLoop]: Abstraction has 25533 states and 28885 transitions. [2024-10-10 23:56:04,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:56:04,420 INFO L276 IsEmpty]: Start isEmpty. Operand 25533 states and 28885 transitions. [2024-10-10 23:56:04,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1148 [2024-10-10 23:56:04,433 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:56:04,434 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:56:04,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-10 23:56:04,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:56:04,635 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:56:04,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:56:04,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1387499639, now seen corresponding path program 1 times [2024-10-10 23:56:04,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:56:04,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285870989] [2024-10-10 23:56:04,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:56:04,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:56:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:56:06,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1316 backedges. 416 proven. 437 refuted. 0 times theorem prover too weak. 463 trivial. 0 not checked. [2024-10-10 23:56:06,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:56:06,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285870989] [2024-10-10 23:56:06,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285870989] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-10 23:56:06,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136961316] [2024-10-10 23:56:06,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:56:06,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:56:06,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-10 23:56:06,760 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-10 23:56:06,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-10 23:56:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:56:07,051 INFO L255 TraceCheckSpWp]: Trace formula consists of 1332 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-10 23:56:07,061 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-10 23:56:07,204 INFO L134 CoverageAnalysis]: Checked inductivity of 1316 backedges. 229 proven. 0 refuted. 0 times theorem prover too weak. 1087 trivial. 0 not checked. [2024-10-10 23:56:07,204 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-10 23:56:07,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136961316] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:56:07,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-10 23:56:07,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-10-10 23:56:07,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274448068] [2024-10-10 23:56:07,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:56:07,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:56:07,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:56:07,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:56:07,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-10 23:56:07,208 INFO L87 Difference]: Start difference. First operand 25533 states and 28885 transitions. Second operand has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:56:08,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:56:08,963 INFO L93 Difference]: Finished difference Result 49685 states and 56385 transitions. [2024-10-10 23:56:08,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:56:08,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1147 [2024-10-10 23:56:08,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:56:09,007 INFO L225 Difference]: With dead ends: 49685 [2024-10-10 23:56:09,008 INFO L226 Difference]: Without dead ends: 25533 [2024-10-10 23:56:09,030 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1152 GetRequests, 1147 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-10 23:56:09,031 INFO L432 NwaCegarLoop]: 994 mSDtfsCounter, 711 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1827 mSolverCounterSat, 378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 2205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 378 IncrementalHoareTripleChecker+Valid, 1827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-10 23:56:09,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 1000 Invalid, 2205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [378 Valid, 1827 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-10 23:56:09,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25533 states. [2024-10-10 23:56:09,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25533 to 25533. [2024-10-10 23:56:09,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25533 states, 25532 states have (on average 1.0842863857120477) internal successors, (27684), 25532 states have internal predecessors, (27684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:56:09,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25533 states to 25533 states and 27684 transitions. [2024-10-10 23:56:09,311 INFO L78 Accepts]: Start accepts. Automaton has 25533 states and 27684 transitions. Word has length 1147 [2024-10-10 23:56:09,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:56:09,312 INFO L471 AbstractCegarLoop]: Abstraction has 25533 states and 27684 transitions. [2024-10-10 23:56:09,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:56:09,313 INFO L276 IsEmpty]: Start isEmpty. Operand 25533 states and 27684 transitions. [2024-10-10 23:56:09,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1187 [2024-10-10 23:56:09,327 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:56:09,328 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:56:09,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-10 23:56:09,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:56:09,529 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:56:09,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:56:09,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1528649631, now seen corresponding path program 1 times [2024-10-10 23:56:09,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:56:09,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337418888] [2024-10-10 23:56:09,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:56:09,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:56:09,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:56:10,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1682 backedges. 913 proven. 0 refuted. 0 times theorem prover too weak. 769 trivial. 0 not checked. [2024-10-10 23:56:10,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:56:10,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337418888] [2024-10-10 23:56:10,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337418888] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:56:10,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:56:10,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:56:10,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487765108] [2024-10-10 23:56:10,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:56:10,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:56:10,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:56:10,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:56:10,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:56:10,343 INFO L87 Difference]: Start difference. First operand 25533 states and 27684 transitions. Second operand has 3 states, 3 states have (on average 225.0) internal successors, (675), 3 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:56:12,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:56:12,351 INFO L93 Difference]: Finished difference Result 59345 states and 65092 transitions. [2024-10-10 23:56:12,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:56:12,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 225.0) internal successors, (675), 3 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1186 [2024-10-10 23:56:12,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:56:12,398 INFO L225 Difference]: With dead ends: 59345 [2024-10-10 23:56:12,398 INFO L226 Difference]: Without dead ends: 35193 [2024-10-10 23:56:12,420 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 [2024-10-10 23:56:12,420 INFO L432 NwaCegarLoop]: 1096 mSDtfsCounter, 623 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2057 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 2389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 2057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-10 23:56:12,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 1102 Invalid, 2389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 2057 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-10 23:56:12,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35193 states. [2024-10-10 23:56:12,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35193 to 34503. [2024-10-10 23:56:12,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34503 states, 34502 states have (on average 1.082111181960466) internal successors, (37335), 34502 states have internal predecessors, (37335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:56:12,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34503 states to 34503 states and 37335 transitions. [2024-10-10 23:56:12,805 INFO L78 Accepts]: Start accepts. Automaton has 34503 states and 37335 transitions. Word has length 1186 [2024-10-10 23:56:12,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:56:12,806 INFO L471 AbstractCegarLoop]: Abstraction has 34503 states and 37335 transitions. [2024-10-10 23:56:12,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 225.0) internal successors, (675), 3 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:56:12,807 INFO L276 IsEmpty]: Start isEmpty. Operand 34503 states and 37335 transitions. [2024-10-10 23:56:12,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1206 [2024-10-10 23:56:12,825 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:56:12,825 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:56:12,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-10 23:56:12,826 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:56:12,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:56:12,826 INFO L85 PathProgramCache]: Analyzing trace with hash -853074815, now seen corresponding path program 1 times [2024-10-10 23:56:12,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:56:12,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129252959] [2024-10-10 23:56:12,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:56:12,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:56:13,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:56:13,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1721 backedges. 913 proven. 0 refuted. 0 times theorem prover too weak. 808 trivial. 0 not checked. [2024-10-10 23:56:13,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:56:13,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129252959] [2024-10-10 23:56:13,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129252959] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:56:13,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:56:13,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:56:13,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291409230] [2024-10-10 23:56:13,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:56:13,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:56:13,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:56:13,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:56:13,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:56:13,724 INFO L87 Difference]: Start difference. First operand 34503 states and 37335 transitions. Second operand has 3 states, 3 states have (on average 225.0) internal successors, (675), 3 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:56:15,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:56:15,845 INFO L93 Difference]: Finished difference Result 74525 states and 81407 transitions. [2024-10-10 23:56:15,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:56:15,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 225.0) internal successors, (675), 3 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1205 [2024-10-10 23:56:15,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:56:15,892 INFO L225 Difference]: With dead ends: 74525 [2024-10-10 23:56:15,892 INFO L226 Difference]: Without dead ends: 41403 [2024-10-10 23:56:15,921 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 [2024-10-10 23:56:15,921 INFO L432 NwaCegarLoop]: 364 mSDtfsCounter, 624 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2053 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 2358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 2053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-10 23:56:15,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 370 Invalid, 2358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 2053 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-10 23:56:15,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41403 states. [2024-10-10 23:56:16,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41403 to 40713. [2024-10-10 23:56:16,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40713 states, 40712 states have (on average 1.079018471212419) internal successors, (43929), 40712 states have internal predecessors, (43929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:56:16,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40713 states to 40713 states and 43929 transitions. [2024-10-10 23:56:16,561 INFO L78 Accepts]: Start accepts. Automaton has 40713 states and 43929 transitions. Word has length 1205 [2024-10-10 23:56:16,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:56:16,562 INFO L471 AbstractCegarLoop]: Abstraction has 40713 states and 43929 transitions. [2024-10-10 23:56:16,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 225.0) internal successors, (675), 3 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:56:16,563 INFO L276 IsEmpty]: Start isEmpty. Operand 40713 states and 43929 transitions. [2024-10-10 23:56:16,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1232 [2024-10-10 23:56:16,581 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:56:16,582 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:56:16,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-10 23:56:16,582 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:56:16,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:56:16,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1063578995, now seen corresponding path program 1 times [2024-10-10 23:56:16,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:56:16,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903964485] [2024-10-10 23:56:16,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:56:16,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:56:16,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:56:18,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1764 backedges. 818 proven. 437 refuted. 0 times theorem prover too weak. 509 trivial. 0 not checked. [2024-10-10 23:56:18,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:56:18,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903964485] [2024-10-10 23:56:18,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903964485] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-10 23:56:18,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588031964] [2024-10-10 23:56:18,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:56:18,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-10 23:56:18,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-10 23:56:18,686 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-10 23:56:18,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-10 23:56:19,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:56:19,008 INFO L255 TraceCheckSpWp]: Trace formula consists of 1440 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-10 23:56:19,019 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-10 23:56:19,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1764 backedges. 677 proven. 0 refuted. 0 times theorem prover too weak. 1087 trivial. 0 not checked. [2024-10-10 23:56:19,151 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-10 23:56:19,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588031964] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:56:19,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-10 23:56:19,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-10-10 23:56:19,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695932709] [2024-10-10 23:56:19,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:56:19,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:56:19,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:56:19,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:56:19,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-10 23:56:19,154 INFO L87 Difference]: Start difference. First operand 40713 states and 43929 transitions. Second operand has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:56:20,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:56:20,999 INFO L93 Difference]: Finished difference Result 86945 states and 94007 transitions. [2024-10-10 23:56:20,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:56:20,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1231 [2024-10-10 23:56:21,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:56:21,043 INFO L225 Difference]: With dead ends: 86945 [2024-10-10 23:56:21,043 INFO L226 Difference]: Without dead ends: 42093 [2024-10-10 23:56:21,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1236 GetRequests, 1231 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-10 23:56:21,071 INFO L432 NwaCegarLoop]: 869 mSDtfsCounter, 664 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1748 mSolverCounterSat, 553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 2301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 1748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-10 23:56:21,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 874 Invalid, 2301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [553 Valid, 1748 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-10 23:56:21,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42093 states. [2024-10-10 23:56:21,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42093 to 40713. [2024-10-10 23:56:21,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40713 states, 40712 states have (on average 1.0362546669286696) internal successors, (42188), 40712 states have internal predecessors, (42188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:56:21,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40713 states to 40713 states and 42188 transitions. [2024-10-10 23:56:21,557 INFO L78 Accepts]: Start accepts. Automaton has 40713 states and 42188 transitions. Word has length 1231 [2024-10-10 23:56:21,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:56:21,558 INFO L471 AbstractCegarLoop]: Abstraction has 40713 states and 42188 transitions. [2024-10-10 23:56:21,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:56:21,558 INFO L276 IsEmpty]: Start isEmpty. Operand 40713 states and 42188 transitions. [2024-10-10 23:56:21,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1305 [2024-10-10 23:56:21,578 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:56:21,579 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:56:21,596 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-10 23:56:21,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-10 23:56:21,780 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:56:21,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:56:21,780 INFO L85 PathProgramCache]: Analyzing trace with hash -395854753, now seen corresponding path program 1 times [2024-10-10 23:56:21,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:56:21,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928850786] [2024-10-10 23:56:21,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:56:21,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:56:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:56:23,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1393 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 1208 trivial. 0 not checked. [2024-10-10 23:56:23,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:56:23,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928850786] [2024-10-10 23:56:23,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928850786] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:56:23,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:56:23,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:56:23,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956106312] [2024-10-10 23:56:23,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:56:23,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:56:23,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:56:23,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:56:23,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:56:23,126 INFO L87 Difference]: Start difference. First operand 40713 states and 42188 transitions. Second operand has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:56:24,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:56:24,599 INFO L93 Difference]: Finished difference Result 80735 states and 83684 transitions. [2024-10-10 23:56:24,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:56:24,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1304 [2024-10-10 23:56:24,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:56:24,637 INFO L225 Difference]: With dead ends: 80735 [2024-10-10 23:56:24,637 INFO L226 Difference]: Without dead ends: 40713 [2024-10-10 23:56:24,662 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:56:24,662 INFO L432 NwaCegarLoop]: 737 mSDtfsCounter, 748 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1669 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 1826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-10 23:56:24,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 743 Invalid, 1826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 1669 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-10 23:56:24,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40713 states. [2024-10-10 23:56:25,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40713 to 40713. [2024-10-10 23:56:25,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40713 states, 40712 states have (on average 1.033479072509334) internal successors, (42075), 40712 states have internal predecessors, (42075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:56:25,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40713 states to 40713 states and 42075 transitions. [2024-10-10 23:56:25,130 INFO L78 Accepts]: Start accepts. Automaton has 40713 states and 42075 transitions. Word has length 1304 [2024-10-10 23:56:25,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:56:25,130 INFO L471 AbstractCegarLoop]: Abstraction has 40713 states and 42075 transitions. [2024-10-10 23:56:25,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:56:25,131 INFO L276 IsEmpty]: Start isEmpty. Operand 40713 states and 42075 transitions. [2024-10-10 23:56:25,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1400 [2024-10-10 23:56:25,147 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:56:25,148 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:56:25,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-10 23:56:25,148 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:56:25,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:56:25,149 INFO L85 PathProgramCache]: Analyzing trace with hash -426635254, now seen corresponding path program 1 times [2024-10-10 23:56:25,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:56:25,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023133615] [2024-10-10 23:56:25,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:56:25,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:56:25,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:56:26,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2602 backedges. 1684 proven. 0 refuted. 0 times theorem prover too weak. 918 trivial. 0 not checked. [2024-10-10 23:56:26,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:56:26,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023133615] [2024-10-10 23:56:26,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023133615] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:56:26,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:56:26,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:56:26,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355657312] [2024-10-10 23:56:26,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:56:26,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:56:26,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:56:26,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:56:26,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:56:26,007 INFO L87 Difference]: Start difference. First operand 40713 states and 42075 transitions. Second operand has 3 states, 3 states have (on average 253.33333333333334) internal successors, (760), 3 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:56:27,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:56:27,703 INFO L93 Difference]: Finished difference Result 86945 states and 89985 transitions. [2024-10-10 23:56:27,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:56:27,703 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 253.33333333333334) internal successors, (760), 3 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1399 [2024-10-10 23:56:27,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:56:27,751 INFO L225 Difference]: With dead ends: 86945 [2024-10-10 23:56:27,752 INFO L226 Difference]: Without dead ends: 46923 [2024-10-10 23:56:27,780 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 [2024-10-10 23:56:27,781 INFO L432 NwaCegarLoop]: 937 mSDtfsCounter, 549 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1674 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 1800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-10 23:56:27,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 943 Invalid, 1800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1674 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-10 23:56:27,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46923 states. [2024-10-10 23:56:28,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46923 to 45543. [2024-10-10 23:56:28,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45543 states, 45542 states have (on average 1.031838742259892) internal successors, (46992), 45542 states have internal predecessors, (46992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:56:28,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45543 states to 45543 states and 46992 transitions. [2024-10-10 23:56:28,498 INFO L78 Accepts]: Start accepts. Automaton has 45543 states and 46992 transitions. Word has length 1399 [2024-10-10 23:56:28,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:56:28,499 INFO L471 AbstractCegarLoop]: Abstraction has 45543 states and 46992 transitions. [2024-10-10 23:56:28,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 253.33333333333334) internal successors, (760), 3 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:56:28,500 INFO L276 IsEmpty]: Start isEmpty. Operand 45543 states and 46992 transitions. [2024-10-10 23:56:28,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1424 [2024-10-10 23:56:28,519 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:56:28,520 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:56:28,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-10 23:56:28,520 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:56:28,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:56:28,521 INFO L85 PathProgramCache]: Analyzing trace with hash 771232829, now seen corresponding path program 1 times [2024-10-10 23:56:28,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:56:28,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421189896] [2024-10-10 23:56:28,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:56:28,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:56:28,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:56:29,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2597 backedges. 1641 proven. 0 refuted. 0 times theorem prover too weak. 956 trivial. 0 not checked. [2024-10-10 23:56:29,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:56:29,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421189896] [2024-10-10 23:56:29,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421189896] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:56:29,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:56:29,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:56:29,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945521343] [2024-10-10 23:56:29,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:56:29,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:56:29,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:56:29,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:56:29,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:56:29,317 INFO L87 Difference]: Start difference. First operand 45543 states and 46992 transitions. Second operand has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:56:30,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:56:30,803 INFO L93 Difference]: Finished difference Result 90395 states and 93292 transitions. [2024-10-10 23:56:30,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:56:30,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1423 [2024-10-10 23:56:30,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:56:30,853 INFO L225 Difference]: With dead ends: 90395 [2024-10-10 23:56:30,853 INFO L226 Difference]: Without dead ends: 45543 [2024-10-10 23:56:30,883 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 [2024-10-10 23:56:30,883 INFO L432 NwaCegarLoop]: 916 mSDtfsCounter, 629 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1647 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 1780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-10 23:56:30,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [629 Valid, 922 Invalid, 1780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1647 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-10 23:56:30,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45543 states. [2024-10-10 23:56:31,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45543 to 45543. [2024-10-10 23:56:31,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45543 states, 45542 states have (on average 1.02830354398138) internal successors, (46831), 45542 states have internal predecessors, (46831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:56:31,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45543 states to 45543 states and 46831 transitions. [2024-10-10 23:56:31,446 INFO L78 Accepts]: Start accepts. Automaton has 45543 states and 46831 transitions. Word has length 1423 [2024-10-10 23:56:31,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:56:31,447 INFO L471 AbstractCegarLoop]: Abstraction has 45543 states and 46831 transitions. [2024-10-10 23:56:31,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:56:31,448 INFO L276 IsEmpty]: Start isEmpty. Operand 45543 states and 46831 transitions. [2024-10-10 23:56:31,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1479 [2024-10-10 23:56:31,483 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:56:31,484 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:56:31,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-10 23:56:31,484 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:56:31,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:56:31,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1111347281, now seen corresponding path program 1 times [2024-10-10 23:56:31,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:56:31,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404975204] [2024-10-10 23:56:31,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:56:31,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:56:31,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 23:56:32,316 INFO L134 CoverageAnalysis]: Checked inductivity of 3581 backedges. 2140 proven. 0 refuted. 0 times theorem prover too weak. 1441 trivial. 0 not checked. [2024-10-10 23:56:32,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 23:56:32,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404975204] [2024-10-10 23:56:32,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404975204] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 23:56:32,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 23:56:32,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 23:56:32,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049417336] [2024-10-10 23:56:32,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 23:56:32,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 23:56:32,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 23:56:32,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 23:56:32,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 23:56:32,320 INFO L87 Difference]: Start difference. First operand 45543 states and 46831 transitions. Second operand has 3 states, 3 states have (on average 247.0) internal successors, (741), 3 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:56:33,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 23:56:33,961 INFO L93 Difference]: Finished difference Result 90395 states and 92970 transitions. [2024-10-10 23:56:33,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 23:56:33,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 247.0) internal successors, (741), 3 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1478 [2024-10-10 23:56:33,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 23:56:34,007 INFO L225 Difference]: With dead ends: 90395 [2024-10-10 23:56:34,007 INFO L226 Difference]: Without dead ends: 45543 [2024-10-10 23:56:34,022 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 [2024-10-10 23:56:34,022 INFO L432 NwaCegarLoop]: 933 mSDtfsCounter, 587 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1674 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 939 SdHoareTripleChecker+Invalid, 1804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-10 23:56:34,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 939 Invalid, 1804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1674 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-10 23:56:34,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45543 states. [2024-10-10 23:56:34,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45543 to 45543. [2024-10-10 23:56:34,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45543 states, 45542 states have (on average 1.0242194018708006) internal successors, (46645), 45542 states have internal predecessors, (46645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:56:34,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45543 states to 45543 states and 46645 transitions. [2024-10-10 23:56:34,374 INFO L78 Accepts]: Start accepts. Automaton has 45543 states and 46645 transitions. Word has length 1478 [2024-10-10 23:56:34,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 23:56:34,375 INFO L471 AbstractCegarLoop]: Abstraction has 45543 states and 46645 transitions. [2024-10-10 23:56:34,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 247.0) internal successors, (741), 3 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 23:56:34,375 INFO L276 IsEmpty]: Start isEmpty. Operand 45543 states and 46645 transitions. [2024-10-10 23:56:34,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1503 [2024-10-10 23:56:34,398 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 23:56:34,399 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 23:56:34,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-10 23:56:34,399 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 23:56:34,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 23:56:34,400 INFO L85 PathProgramCache]: Analyzing trace with hash -580788679, now seen corresponding path program 1 times [2024-10-10 23:56:34,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 23:56:34,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111693460] [2024-10-10 23:56:34,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 23:56:34,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 23:56:34,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat