./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-patterns/array22_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-patterns/array22_pattern.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 31d323b6985f030ac0fb5fda45d0cb8af14c3bb3898c8ff09cf5a292e40f357b --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 10:07:33,757 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 10:07:33,811 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 10:07:33,815 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 10:07:33,816 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 10:07:33,843 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 10:07:33,844 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 10:07:33,844 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 10:07:33,844 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 10:07:33,845 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 10:07:33,845 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 10:07:33,845 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 10:07:33,846 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 10:07:33,846 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 10:07:33,846 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 10:07:33,846 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 10:07:33,846 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 10:07:33,847 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 10:07:33,847 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 10:07:33,850 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 10:07:33,851 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 10:07:33,851 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 10:07:33,851 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 10:07:33,851 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 10:07:33,852 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 10:07:33,852 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 10:07:33,852 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 10:07:33,852 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 10:07:33,853 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 10:07:33,853 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 10:07:33,853 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 10:07:33,854 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 10:07:33,854 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 10:07:33,854 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 10:07:33,855 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 10:07:33,855 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 10:07:33,855 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 10:07:33,855 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 10:07:33,855 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 10:07:33,856 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 10:07:33,856 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 10:07:33,856 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 10:07:33,856 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31d323b6985f030ac0fb5fda45d0cb8af14c3bb3898c8ff09cf5a292e40f357b [2024-11-08 10:07:34,105 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 10:07:34,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 10:07:34,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 10:07:34,128 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 10:07:34,128 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 10:07:34,129 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array22_pattern.c [2024-11-08 10:07:35,437 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 10:07:35,588 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 10:07:35,588 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array22_pattern.c [2024-11-08 10:07:35,593 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22271bad4/ec14af1cd4a3403e8466794e0520e890/FLAG9a2276c21 [2024-11-08 10:07:36,001 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22271bad4/ec14af1cd4a3403e8466794e0520e890 [2024-11-08 10:07:36,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 10:07:36,004 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 10:07:36,009 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 10:07:36,009 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 10:07:36,013 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 10:07:36,013 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:07:36" (1/1) ... [2024-11-08 10:07:36,014 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77b782d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:07:36, skipping insertion in model container [2024-11-08 10:07:36,014 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:07:36" (1/1) ... [2024-11-08 10:07:36,028 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 10:07:36,162 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array22_pattern.c[1347,1360] [2024-11-08 10:07:36,188 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 10:07:36,198 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 10:07:36,209 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array22_pattern.c[1347,1360] [2024-11-08 10:07:36,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 10:07:36,242 INFO L204 MainTranslator]: Completed translation [2024-11-08 10:07:36,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:07:36 WrapperNode [2024-11-08 10:07:36,243 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 10:07:36,244 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 10:07:36,245 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 10:07:36,245 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 10:07:36,251 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:07:36" (1/1) ... [2024-11-08 10:07:36,263 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:07:36" (1/1) ... [2024-11-08 10:07:36,289 INFO L138 Inliner]: procedures = 17, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 110 [2024-11-08 10:07:36,290 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 10:07:36,291 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 10:07:36,291 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 10:07:36,291 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 10:07:36,299 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:07:36" (1/1) ... [2024-11-08 10:07:36,299 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:07:36" (1/1) ... [2024-11-08 10:07:36,302 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:07:36" (1/1) ... [2024-11-08 10:07:36,316 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-11-08 10:07:36,320 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:07:36" (1/1) ... [2024-11-08 10:07:36,320 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:07:36" (1/1) ... [2024-11-08 10:07:36,348 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:07:36" (1/1) ... [2024-11-08 10:07:36,357 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:07:36" (1/1) ... [2024-11-08 10:07:36,364 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:07:36" (1/1) ... [2024-11-08 10:07:36,365 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:07:36" (1/1) ... [2024-11-08 10:07:36,367 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 10:07:36,368 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 10:07:36,368 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 10:07:36,368 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 10:07:36,369 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:07:36" (1/1) ... [2024-11-08 10:07:36,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 10:07:36,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 10:07:36,403 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 10:07:36,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 10:07:36,454 INFO L130 BoogieDeclarations]: Found specification of procedure outerBoundaryPatternCheck [2024-11-08 10:07:36,455 INFO L138 BoogieDeclarations]: Found implementation of procedure outerBoundaryPatternCheck [2024-11-08 10:07:36,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 10:07:36,455 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 10:07:36,455 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 10:07:36,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 10:07:36,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 10:07:36,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 10:07:36,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 10:07:36,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 10:07:36,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 10:07:36,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 10:07:36,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 10:07:36,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 10:07:36,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 10:07:36,535 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 10:07:36,539 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 10:07:36,725 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-08 10:07:36,726 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 10:07:36,738 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 10:07:36,738 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-08 10:07:36,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:07:36 BoogieIcfgContainer [2024-11-08 10:07:36,739 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 10:07:36,741 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 10:07:36,742 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 10:07:36,744 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 10:07:36,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 10:07:36" (1/3) ... [2024-11-08 10:07:36,745 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@152636a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 10:07:36, skipping insertion in model container [2024-11-08 10:07:36,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:07:36" (2/3) ... [2024-11-08 10:07:36,745 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@152636a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 10:07:36, skipping insertion in model container [2024-11-08 10:07:36,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:07:36" (3/3) ... [2024-11-08 10:07:36,746 INFO L112 eAbstractionObserver]: Analyzing ICFG array22_pattern.c [2024-11-08 10:07:36,760 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 10:07:36,761 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 10:07:36,806 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 10:07:36,811 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;@3e9fe601, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 10:07:36,811 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 10:07:36,814 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 32 states have (on average 1.53125) internal successors, (49), 33 states have internal predecessors, (49), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 10:07:36,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-08 10:07:36,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 10:07:36,820 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 10:07:36,821 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 10:07:36,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 10:07:36,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1798908762, now seen corresponding path program 1 times [2024-11-08 10:07:36,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 10:07:36,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660547055] [2024-11-08 10:07:36,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:07:36,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 10:07:36,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:36,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 10:07:36,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:36,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 10:07:36,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 10:07:36,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660547055] [2024-11-08 10:07:36,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660547055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 10:07:36,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 10:07:36,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 10:07:36,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053692158] [2024-11-08 10:07:36,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 10:07:36,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 10:07:36,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 10:07:37,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 10:07:37,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 10:07:37,012 INFO L87 Difference]: Start difference. First operand has 41 states, 32 states have (on average 1.53125) internal successors, (49), 33 states have internal predecessors, (49), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 10:07:37,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 10:07:37,052 INFO L93 Difference]: Finished difference Result 79 states and 117 transitions. [2024-11-08 10:07:37,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 10:07:37,057 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2024-11-08 10:07:37,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 10:07:37,070 INFO L225 Difference]: With dead ends: 79 [2024-11-08 10:07:37,070 INFO L226 Difference]: Without dead ends: 37 [2024-11-08 10:07:37,072 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 10:07:37,092 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 10:07:37,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 10:07:37,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-08 10:07:37,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-08 10:07:37,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 10:07:37,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2024-11-08 10:07:37,131 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 47 transitions. Word has length 15 [2024-11-08 10:07:37,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 10:07:37,131 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 47 transitions. [2024-11-08 10:07:37,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 10:07:37,132 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2024-11-08 10:07:37,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-08 10:07:37,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 10:07:37,133 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-08 10:07:37,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 10:07:37,134 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 10:07:37,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 10:07:37,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1909329698, now seen corresponding path program 1 times [2024-11-08 10:07:37,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 10:07:37,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451482923] [2024-11-08 10:07:37,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:07:37,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 10:07:37,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:37,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 10:07:37,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:37,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 10:07:37,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:37,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 10:07:37,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:37,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 10:07:37,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:37,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 10:07:37,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:37,452 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-08 10:07:37,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 10:07:37,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451482923] [2024-11-08 10:07:37,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451482923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 10:07:37,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 10:07:37,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 10:07:37,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271361460] [2024-11-08 10:07:37,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 10:07:37,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 10:07:37,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 10:07:37,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 10:07:37,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 10:07:37,457 INFO L87 Difference]: Start difference. First operand 37 states and 47 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 10:07:37,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 10:07:37,481 INFO L93 Difference]: Finished difference Result 44 states and 55 transitions. [2024-11-08 10:07:37,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 10:07:37,482 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 42 [2024-11-08 10:07:37,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 10:07:37,483 INFO L225 Difference]: With dead ends: 44 [2024-11-08 10:07:37,483 INFO L226 Difference]: Without dead ends: 40 [2024-11-08 10:07:37,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 10:07:37,484 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 11 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 10:07:37,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 110 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 10:07:37,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-08 10:07:37,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-11-08 10:07:37,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 32 states have (on average 1.28125) internal successors, (41), 32 states have internal predecessors, (41), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 10:07:37,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2024-11-08 10:07:37,492 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 42 [2024-11-08 10:07:37,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 10:07:37,497 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2024-11-08 10:07:37,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 10:07:37,498 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2024-11-08 10:07:37,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-08 10:07:37,499 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 10:07:37,499 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-08 10:07:37,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 10:07:37,500 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 10:07:37,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 10:07:37,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1786751912, now seen corresponding path program 1 times [2024-11-08 10:07:37,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 10:07:37,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141674773] [2024-11-08 10:07:37,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:07:37,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 10:07:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:37,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 10:07:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:37,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 10:07:37,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:37,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 10:07:37,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:37,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 10:07:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:37,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 10:07:37,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:37,660 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-08 10:07:37,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 10:07:37,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141674773] [2024-11-08 10:07:37,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141674773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 10:07:37,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 10:07:37,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 10:07:37,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768282543] [2024-11-08 10:07:37,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 10:07:37,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 10:07:37,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 10:07:37,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 10:07:37,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 10:07:37,666 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 10:07:37,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 10:07:37,756 INFO L93 Difference]: Finished difference Result 83 states and 106 transitions. [2024-11-08 10:07:37,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 10:07:37,757 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 47 [2024-11-08 10:07:37,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 10:07:37,758 INFO L225 Difference]: With dead ends: 83 [2024-11-08 10:07:37,758 INFO L226 Difference]: Without dead ends: 50 [2024-11-08 10:07:37,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 10:07:37,759 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 22 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 10:07:37,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 110 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 10:07:37,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-08 10:07:37,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 41. [2024-11-08 10:07:37,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 states have internal predecessors, (42), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 10:07:37,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2024-11-08 10:07:37,768 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 52 transitions. Word has length 47 [2024-11-08 10:07:37,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 10:07:37,769 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 52 transitions. [2024-11-08 10:07:37,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 10:07:37,769 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 52 transitions. [2024-11-08 10:07:37,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-08 10:07:37,771 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 10:07:37,771 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-08 10:07:37,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 10:07:37,771 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 10:07:37,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 10:07:37,772 INFO L85 PathProgramCache]: Analyzing trace with hash -2075657686, now seen corresponding path program 1 times [2024-11-08 10:07:37,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 10:07:37,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27783492] [2024-11-08 10:07:37,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:07:37,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 10:07:37,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:37,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 10:07:37,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:37,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 10:07:37,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:37,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 10:07:37,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:37,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 10:07:37,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:37,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 10:07:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:37,905 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 10:07:37,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 10:07:37,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27783492] [2024-11-08 10:07:37,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27783492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 10:07:37,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 10:07:37,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 10:07:37,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390953000] [2024-11-08 10:07:37,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 10:07:37,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 10:07:37,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 10:07:37,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 10:07:37,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 10:07:37,909 INFO L87 Difference]: Start difference. First operand 41 states and 52 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 10:07:37,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 10:07:37,955 INFO L93 Difference]: Finished difference Result 85 states and 109 transitions. [2024-11-08 10:07:37,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 10:07:37,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 50 [2024-11-08 10:07:37,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 10:07:37,956 INFO L225 Difference]: With dead ends: 85 [2024-11-08 10:07:37,956 INFO L226 Difference]: Without dead ends: 49 [2024-11-08 10:07:37,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 10:07:37,957 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 13 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 10:07:37,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 75 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 10:07:37,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-08 10:07:37,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 41. [2024-11-08 10:07:37,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 33 states have internal predecessors, (41), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 10:07:37,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2024-11-08 10:07:37,965 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 50 [2024-11-08 10:07:37,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 10:07:37,966 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2024-11-08 10:07:37,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 10:07:37,966 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2024-11-08 10:07:37,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-08 10:07:37,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 10:07:37,967 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-08 10:07:37,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 10:07:37,968 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 10:07:37,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 10:07:37,969 INFO L85 PathProgramCache]: Analyzing trace with hash 874891816, now seen corresponding path program 1 times [2024-11-08 10:07:37,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 10:07:37,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550721295] [2024-11-08 10:07:37,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:07:37,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 10:07:38,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:38,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 10:07:38,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:38,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 10:07:38,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:38,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 10:07:38,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:38,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 10:07:38,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:38,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 10:07:38,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:38,137 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 10:07:38,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 10:07:38,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550721295] [2024-11-08 10:07:38,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550721295] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 10:07:38,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921298346] [2024-11-08 10:07:38,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:07:38,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:07:38,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 10:07:38,140 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 10:07:38,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 10:07:38,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:38,202 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 10:07:38,206 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 10:07:38,281 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 10:07:38,281 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 10:07:38,433 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 10:07:38,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921298346] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 10:07:38,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 10:07:38,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-11-08 10:07:38,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576052568] [2024-11-08 10:07:38,439 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 10:07:38,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 10:07:38,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 10:07:38,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 10:07:38,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-08 10:07:38,441 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 10:07:38,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 10:07:38,615 INFO L93 Difference]: Finished difference Result 88 states and 110 transitions. [2024-11-08 10:07:38,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 10:07:38,616 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 52 [2024-11-08 10:07:38,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 10:07:38,616 INFO L225 Difference]: With dead ends: 88 [2024-11-08 10:07:38,617 INFO L226 Difference]: Without dead ends: 53 [2024-11-08 10:07:38,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 106 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2024-11-08 10:07:38,618 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 49 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 10:07:38,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 129 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 10:07:38,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-08 10:07:38,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2024-11-08 10:07:38,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 40 states have (on average 1.2) internal successors, (48), 40 states have internal predecessors, (48), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 10:07:38,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 58 transitions. [2024-11-08 10:07:38,625 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 58 transitions. Word has length 52 [2024-11-08 10:07:38,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 10:07:38,625 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 58 transitions. [2024-11-08 10:07:38,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 10:07:38,626 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2024-11-08 10:07:38,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-08 10:07:38,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 10:07:38,627 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-08 10:07:38,642 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 10:07:38,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:07:38,832 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 10:07:38,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 10:07:38,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1211966936, now seen corresponding path program 2 times [2024-11-08 10:07:38,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 10:07:38,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654197533] [2024-11-08 10:07:38,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:07:38,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 10:07:38,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:38,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 10:07:38,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:38,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 10:07:38,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:38,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 10:07:38,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:38,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 10:07:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:38,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 10:07:38,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:38,982 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-08 10:07:38,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 10:07:38,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654197533] [2024-11-08 10:07:38,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654197533] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 10:07:38,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705915388] [2024-11-08 10:07:38,983 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 10:07:38,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:07:38,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 10:07:38,985 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 10:07:38,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 10:07:39,048 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 10:07:39,048 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 10:07:39,049 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 10:07:39,050 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 10:07:39,110 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 10:07:39,110 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 10:07:39,166 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-08 10:07:39,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705915388] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 10:07:39,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 10:07:39,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-08 10:07:39,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720400371] [2024-11-08 10:07:39,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 10:07:39,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 10:07:39,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 10:07:39,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 10:07:39,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-08 10:07:39,170 INFO L87 Difference]: Start difference. First operand 49 states and 58 transitions. Second operand has 15 states, 15 states have (on average 3.8) internal successors, (57), 15 states have internal predecessors, (57), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 10:07:39,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 10:07:39,322 INFO L93 Difference]: Finished difference Result 108 states and 130 transitions. [2024-11-08 10:07:39,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 10:07:39,323 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.8) internal successors, (57), 15 states have internal predecessors, (57), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 56 [2024-11-08 10:07:39,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 10:07:39,324 INFO L225 Difference]: With dead ends: 108 [2024-11-08 10:07:39,324 INFO L226 Difference]: Without dead ends: 75 [2024-11-08 10:07:39,324 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 112 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-08 10:07:39,325 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 36 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 10:07:39,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 183 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 10:07:39,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-08 10:07:39,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 63. [2024-11-08 10:07:39,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 54 states have (on average 1.1851851851851851) internal successors, (64), 54 states have internal predecessors, (64), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 10:07:39,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 74 transitions. [2024-11-08 10:07:39,338 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 74 transitions. Word has length 56 [2024-11-08 10:07:39,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 10:07:39,338 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 74 transitions. [2024-11-08 10:07:39,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.8) internal successors, (57), 15 states have internal predecessors, (57), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 10:07:39,339 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 74 transitions. [2024-11-08 10:07:39,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-08 10:07:39,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 10:07:39,341 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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] [2024-11-08 10:07:39,353 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 10:07:39,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-08 10:07:39,546 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 10:07:39,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 10:07:39,546 INFO L85 PathProgramCache]: Analyzing trace with hash -511912674, now seen corresponding path program 3 times [2024-11-08 10:07:39,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 10:07:39,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695161677] [2024-11-08 10:07:39,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:07:39,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 10:07:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 10:07:39,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2001130554] [2024-11-08 10:07:39,598 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 10:07:39,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:07:39,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 10:07:39,600 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 10:07:39,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 10:07:41,306 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-08 10:07:41,306 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 10:07:41,310 WARN L253 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 110 conjuncts are in the unsatisfiable core [2024-11-08 10:07:41,320 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 10:07:41,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 10:07:41,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-08 10:07:41,699 INFO L349 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2024-11-08 10:07:41,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 30 [2024-11-08 10:07:41,821 INFO L349 Elim1Store]: treesize reduction 52, result has 22.4 percent of original size [2024-11-08 10:07:41,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 39 treesize of output 44 [2024-11-08 10:07:42,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:42,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:42,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:42,861 INFO L349 Elim1Store]: treesize reduction 266, result has 30.9 percent of original size [2024-11-08 10:07:42,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 5 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 88 treesize of output 158 [2024-11-08 10:07:49,640 INFO L349 Elim1Store]: treesize reduction 192, result has 34.9 percent of original size [2024-11-08 10:07:49,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 468 treesize of output 500 [2024-11-08 10:07:55,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:55,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:55,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:55,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:55,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:55,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:55,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:55,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:55,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:55,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:55,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:55,294 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:07:55,425 INFO L349 Elim1Store]: treesize reduction 370, result has 5.6 percent of original size [2024-11-08 10:07:55,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 693 treesize of output 890 [2024-11-08 10:07:56,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:56,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:56,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:56,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:56,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:56,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:56,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:56,741 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:07:56,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 65 [2024-11-08 10:07:56,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:56,760 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:07:56,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:56,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:56,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:56,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:56,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:56,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:56,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:56,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:56,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:56,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:56,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:56,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:56,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:56,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:56,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:56,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:56,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:56,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:56,819 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:07:56,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:56,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:57,165 INFO L349 Elim1Store]: treesize reduction 775, result has 7.5 percent of original size [2024-11-08 10:07:57,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 384 treesize of output 666 [2024-11-08 10:07:57,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:57,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:57,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:57,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:57,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:57,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:57,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:57,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:57,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:57,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:57,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:57,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:57,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:57,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:58,029 INFO L349 Elim1Store]: treesize reduction 162, result has 32.8 percent of original size [2024-11-08 10:07:58,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 11 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 204 treesize of output 196 [2024-11-08 10:08:05,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 261 treesize of output 213 [2024-11-08 10:08:05,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:08:05,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:08:05,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:08:05,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:08:05,251 INFO L349 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2024-11-08 10:08:05,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 17 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 4 case distinctions, treesize of input 90 treesize of output 1 [2024-11-08 10:08:05,261 INFO L349 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2024-11-08 10:08:05,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 1 [2024-11-08 10:08:06,015 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 9 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 10:08:06,015 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 10:08:10,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 10:08:10,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695161677] [2024-11-08 10:08:10,775 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 10:08:10,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001130554] [2024-11-08 10:08:10,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001130554] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 10:08:10,775 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 10:08:10,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2024-11-08 10:08:10,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14833608] [2024-11-08 10:08:10,775 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 10:08:10,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-08 10:08:10,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 10:08:10,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-08 10:08:10,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=455, Invalid=4100, Unknown=1, NotChecked=0, Total=4556 [2024-11-08 10:08:10,778 INFO L87 Difference]: Start difference. First operand 63 states and 74 transitions. Second operand has 44 states, 43 states have (on average 1.3953488372093024) internal successors, (60), 42 states have internal predecessors, (60), 4 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-08 10:08:15,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-08 10:08:18,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 10:08:18,961 INFO L93 Difference]: Finished difference Result 177 states and 212 transitions. [2024-11-08 10:08:18,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-08 10:08:18,963 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 1.3953488372093024) internal successors, (60), 42 states have internal predecessors, (60), 4 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 70 [2024-11-08 10:08:18,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 10:08:18,968 INFO L225 Difference]: With dead ends: 177 [2024-11-08 10:08:18,968 INFO L226 Difference]: Without dead ends: 133 [2024-11-08 10:08:18,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2448 ImplicationChecksByTransitivity, 16.7s TimeCoverageRelationStatistics Valid=603, Invalid=5402, Unknown=1, NotChecked=0, Total=6006 [2024-11-08 10:08:18,976 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 102 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 1348 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1348 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-11-08 10:08:18,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 425 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1348 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2024-11-08 10:08:18,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-08 10:08:19,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 111. [2024-11-08 10:08:19,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 93 states have (on average 1.1827956989247312) internal successors, (110), 94 states have internal predecessors, (110), 9 states have call successors, (9), 7 states have call predecessors, (9), 8 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-08 10:08:19,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 129 transitions. [2024-11-08 10:08:19,006 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 129 transitions. Word has length 70 [2024-11-08 10:08:19,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 10:08:19,006 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 129 transitions. [2024-11-08 10:08:19,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 1.3953488372093024) internal successors, (60), 42 states have internal predecessors, (60), 4 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-08 10:08:19,007 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 129 transitions. [2024-11-08 10:08:19,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-08 10:08:19,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 10:08:19,008 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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] [2024-11-08 10:08:19,015 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 10:08:19,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:08:19,213 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 10:08:19,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 10:08:19,214 INFO L85 PathProgramCache]: Analyzing trace with hash -480892867, now seen corresponding path program 1 times [2024-11-08 10:08:19,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 10:08:19,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955110078] [2024-11-08 10:08:19,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:08:19,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 10:08:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:19,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 10:08:19,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:19,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 10:08:19,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:19,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 10:08:19,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:19,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 10:08:19,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:19,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-08 10:08:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:19,291 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-08 10:08:19,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 10:08:19,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955110078] [2024-11-08 10:08:19,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955110078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 10:08:19,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 10:08:19,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 10:08:19,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107001448] [2024-11-08 10:08:19,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 10:08:19,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 10:08:19,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 10:08:19,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 10:08:19,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 10:08:19,292 INFO L87 Difference]: Start difference. First operand 111 states and 129 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-08 10:08:19,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 10:08:19,317 INFO L93 Difference]: Finished difference Result 157 states and 185 transitions. [2024-11-08 10:08:19,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 10:08:19,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 70 [2024-11-08 10:08:19,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 10:08:19,320 INFO L225 Difference]: With dead ends: 157 [2024-11-08 10:08:19,320 INFO L226 Difference]: Without dead ends: 117 [2024-11-08 10:08:19,320 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 10:08:19,321 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 10:08:19,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 10:08:19,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-08 10:08:19,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 115. [2024-11-08 10:08:19,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 96 states have (on average 1.1770833333333333) internal successors, (113), 97 states have internal predecessors, (113), 9 states have call successors, (9), 7 states have call predecessors, (9), 9 states have return successors, (12), 10 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-08 10:08:19,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 134 transitions. [2024-11-08 10:08:19,340 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 134 transitions. Word has length 70 [2024-11-08 10:08:19,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 10:08:19,340 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 134 transitions. [2024-11-08 10:08:19,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-08 10:08:19,340 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 134 transitions. [2024-11-08 10:08:19,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-08 10:08:19,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 10:08:19,341 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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] [2024-11-08 10:08:19,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 10:08:19,342 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 10:08:19,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 10:08:19,342 INFO L85 PathProgramCache]: Analyzing trace with hash -262038149, now seen corresponding path program 1 times [2024-11-08 10:08:19,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 10:08:19,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985755830] [2024-11-08 10:08:19,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:08:19,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 10:08:19,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:19,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 10:08:19,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:19,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 10:08:19,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:19,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 10:08:19,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:19,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 10:08:19,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:19,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-08 10:08:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:19,487 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-08 10:08:19,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 10:08:19,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985755830] [2024-11-08 10:08:19,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985755830] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 10:08:19,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184120498] [2024-11-08 10:08:19,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:08:19,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:08:19,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 10:08:19,489 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 10:08:19,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 10:08:19,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:19,558 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 10:08:19,560 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 10:08:19,727 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-08 10:08:19,727 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 10:08:19,817 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-08 10:08:19,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184120498] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 10:08:19,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 10:08:19,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 7] total 15 [2024-11-08 10:08:19,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366421176] [2024-11-08 10:08:19,818 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 10:08:19,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 10:08:19,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 10:08:19,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 10:08:19,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-08 10:08:19,819 INFO L87 Difference]: Start difference. First operand 115 states and 134 transitions. Second operand has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 4 states have call successors, (9), 2 states have call predecessors, (9), 6 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-08 10:08:20,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 10:08:20,013 INFO L93 Difference]: Finished difference Result 178 states and 213 transitions. [2024-11-08 10:08:20,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 10:08:20,014 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 4 states have call successors, (9), 2 states have call predecessors, (9), 6 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 70 [2024-11-08 10:08:20,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 10:08:20,015 INFO L225 Difference]: With dead ends: 178 [2024-11-08 10:08:20,015 INFO L226 Difference]: Without dead ends: 132 [2024-11-08 10:08:20,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2024-11-08 10:08:20,016 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 29 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 10:08:20,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 192 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 10:08:20,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-08 10:08:20,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 129. [2024-11-08 10:08:20,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 107 states have (on average 1.1775700934579438) internal successors, (126), 107 states have internal predecessors, (126), 11 states have call successors, (11), 9 states have call predecessors, (11), 10 states have return successors, (15), 12 states have call predecessors, (15), 11 states have call successors, (15) [2024-11-08 10:08:20,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 152 transitions. [2024-11-08 10:08:20,036 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 152 transitions. Word has length 70 [2024-11-08 10:08:20,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 10:08:20,037 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 152 transitions. [2024-11-08 10:08:20,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 4 states have call successors, (9), 2 states have call predecessors, (9), 6 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-08 10:08:20,037 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 152 transitions. [2024-11-08 10:08:20,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-08 10:08:20,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 10:08:20,038 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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] [2024-11-08 10:08:20,053 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 10:08:20,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:08:20,238 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 10:08:20,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 10:08:20,239 INFO L85 PathProgramCache]: Analyzing trace with hash -489280420, now seen corresponding path program 1 times [2024-11-08 10:08:20,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 10:08:20,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609760102] [2024-11-08 10:08:20,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:08:20,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 10:08:20,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:20,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 10:08:20,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:20,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 10:08:20,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:20,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 10:08:20,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:20,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 10:08:20,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:20,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-08 10:08:20,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:20,308 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-08 10:08:20,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 10:08:20,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609760102] [2024-11-08 10:08:20,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609760102] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 10:08:20,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1567361787] [2024-11-08 10:08:20,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:08:20,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:08:20,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 10:08:20,311 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 10:08:20,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 10:08:20,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:20,374 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 10:08:20,375 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 10:08:20,390 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-08 10:08:20,390 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 10:08:20,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1567361787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 10:08:20,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 10:08:20,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-08 10:08:20,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201624124] [2024-11-08 10:08:20,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 10:08:20,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 10:08:20,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 10:08:20,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 10:08:20,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 10:08:20,392 INFO L87 Difference]: Start difference. First operand 129 states and 152 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 10:08:20,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 10:08:20,416 INFO L93 Difference]: Finished difference Result 179 states and 213 transitions. [2024-11-08 10:08:20,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 10:08:20,416 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 70 [2024-11-08 10:08:20,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 10:08:20,417 INFO L225 Difference]: With dead ends: 179 [2024-11-08 10:08:20,417 INFO L226 Difference]: Without dead ends: 129 [2024-11-08 10:08:20,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 10:08:20,418 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 10:08:20,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 10:08:20,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-08 10:08:20,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2024-11-08 10:08:20,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 107 states have (on average 1.158878504672897) internal successors, (124), 107 states have internal predecessors, (124), 11 states have call successors, (11), 9 states have call predecessors, (11), 10 states have return successors, (15), 12 states have call predecessors, (15), 11 states have call successors, (15) [2024-11-08 10:08:20,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 150 transitions. [2024-11-08 10:08:20,438 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 150 transitions. Word has length 70 [2024-11-08 10:08:20,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 10:08:20,438 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 150 transitions. [2024-11-08 10:08:20,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 10:08:20,438 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 150 transitions. [2024-11-08 10:08:20,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-08 10:08:20,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 10:08:20,439 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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] [2024-11-08 10:08:20,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-08 10:08:20,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-08 10:08:20,644 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 10:08:20,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 10:08:20,644 INFO L85 PathProgramCache]: Analyzing trace with hash 763453850, now seen corresponding path program 1 times [2024-11-08 10:08:20,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 10:08:20,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280380485] [2024-11-08 10:08:20,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:08:20,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 10:08:20,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:20,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 10:08:20,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:20,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 10:08:20,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:20,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 10:08:20,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:20,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 10:08:20,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:20,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-08 10:08:20,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:20,706 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-08 10:08:20,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 10:08:20,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280380485] [2024-11-08 10:08:20,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280380485] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 10:08:20,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604781833] [2024-11-08 10:08:20,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:08:20,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:08:20,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 10:08:20,708 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 10:08:20,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 10:08:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:20,779 INFO L255 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 10:08:20,781 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 10:08:20,786 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-08 10:08:20,786 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 10:08:20,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604781833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 10:08:20,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 10:08:20,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2024-11-08 10:08:20,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974899299] [2024-11-08 10:08:20,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 10:08:20,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 10:08:20,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 10:08:20,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 10:08:20,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 10:08:20,788 INFO L87 Difference]: Start difference. First operand 129 states and 150 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 10:08:20,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 10:08:20,812 INFO L93 Difference]: Finished difference Result 196 states and 228 transitions. [2024-11-08 10:08:20,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 10:08:20,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 70 [2024-11-08 10:08:20,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 10:08:20,814 INFO L225 Difference]: With dead ends: 196 [2024-11-08 10:08:20,814 INFO L226 Difference]: Without dead ends: 123 [2024-11-08 10:08:20,814 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 10:08:20,815 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 10:08:20,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 10:08:20,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-08 10:08:20,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2024-11-08 10:08:20,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 101 states have (on average 1.1386138613861385) internal successors, (115), 101 states have internal predecessors, (115), 10 states have call successors, (10), 8 states have call predecessors, (10), 9 states have return successors, (13), 11 states have call predecessors, (13), 10 states have call successors, (13) [2024-11-08 10:08:20,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 138 transitions. [2024-11-08 10:08:20,832 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 138 transitions. Word has length 70 [2024-11-08 10:08:20,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 10:08:20,832 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 138 transitions. [2024-11-08 10:08:20,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 10:08:20,832 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 138 transitions. [2024-11-08 10:08:20,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-08 10:08:20,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 10:08:20,833 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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] [2024-11-08 10:08:20,845 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 10:08:21,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:08:21,034 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 10:08:21,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 10:08:21,035 INFO L85 PathProgramCache]: Analyzing trace with hash 536211579, now seen corresponding path program 1 times [2024-11-08 10:08:21,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 10:08:21,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118296979] [2024-11-08 10:08:21,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:08:21,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 10:08:21,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:21,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 10:08:21,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:21,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 10:08:21,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:21,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 10:08:21,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:21,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 10:08:21,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:21,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-08 10:08:21,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:21,303 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-08 10:08:21,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 10:08:21,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118296979] [2024-11-08 10:08:21,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118296979] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 10:08:21,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942467840] [2024-11-08 10:08:21,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:08:21,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:08:21,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 10:08:21,305 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 10:08:21,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 10:08:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:21,366 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-08 10:08:21,367 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 10:08:21,478 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 10 proven. 19 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-08 10:08:21,478 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 10:08:21,606 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-08 10:08:21,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942467840] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 10:08:21,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 10:08:21,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 7] total 21 [2024-11-08 10:08:21,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224041093] [2024-11-08 10:08:21,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 10:08:21,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-08 10:08:21,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 10:08:21,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-08 10:08:21,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=352, Unknown=0, NotChecked=0, Total=420 [2024-11-08 10:08:21,608 INFO L87 Difference]: Start difference. First operand 121 states and 138 transitions. Second operand has 21 states, 20 states have (on average 3.45) internal successors, (69), 20 states have internal predecessors, (69), 6 states have call successors, (13), 2 states have call predecessors, (13), 7 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-08 10:08:21,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 10:08:21,964 INFO L93 Difference]: Finished difference Result 302 states and 351 transitions. [2024-11-08 10:08:21,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-08 10:08:21,964 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.45) internal successors, (69), 20 states have internal predecessors, (69), 6 states have call successors, (13), 2 states have call predecessors, (13), 7 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) Word has length 70 [2024-11-08 10:08:21,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 10:08:21,965 INFO L225 Difference]: With dead ends: 302 [2024-11-08 10:08:21,966 INFO L226 Difference]: Without dead ends: 252 [2024-11-08 10:08:21,966 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=584, Unknown=0, NotChecked=0, Total=702 [2024-11-08 10:08:21,966 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 47 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 10:08:21,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 337 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 10:08:21,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2024-11-08 10:08:21,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 123. [2024-11-08 10:08:21,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 103 states have (on average 1.1359223300970873) internal successors, (117), 102 states have internal predecessors, (117), 10 states have call successors, (10), 9 states have call predecessors, (10), 9 states have return successors, (12), 11 states have call predecessors, (12), 10 states have call successors, (12) [2024-11-08 10:08:21,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 139 transitions. [2024-11-08 10:08:21,985 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 139 transitions. Word has length 70 [2024-11-08 10:08:21,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 10:08:21,985 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 139 transitions. [2024-11-08 10:08:21,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.45) internal successors, (69), 20 states have internal predecessors, (69), 6 states have call successors, (13), 2 states have call predecessors, (13), 7 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-08 10:08:21,986 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 139 transitions. [2024-11-08 10:08:21,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-08 10:08:21,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 10:08:21,986 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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] [2024-11-08 10:08:22,000 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 10:08:22,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:08:22,191 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 10:08:22,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 10:08:22,191 INFO L85 PathProgramCache]: Analyzing trace with hash 786086104, now seen corresponding path program 1 times [2024-11-08 10:08:22,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 10:08:22,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701424322] [2024-11-08 10:08:22,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:08:22,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 10:08:22,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:22,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 10:08:22,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:22,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 10:08:22,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:22,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 10:08:22,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:22,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 10:08:22,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:22,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-08 10:08:22,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:22,380 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 8 proven. 20 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-08 10:08:22,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 10:08:22,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701424322] [2024-11-08 10:08:22,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701424322] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 10:08:22,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354349261] [2024-11-08 10:08:22,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:08:22,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:08:22,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 10:08:22,383 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 10:08:22,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 10:08:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:22,451 INFO L255 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 10:08:22,453 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 10:08:22,628 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 15 proven. 19 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-08 10:08:22,628 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 10:08:22,827 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 8 proven. 20 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-08 10:08:22,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354349261] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 10:08:22,828 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 10:08:22,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 16, 14] total 29 [2024-11-08 10:08:22,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092957794] [2024-11-08 10:08:22,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 10:08:22,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-08 10:08:22,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 10:08:22,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-08 10:08:22,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=698, Unknown=0, NotChecked=0, Total=812 [2024-11-08 10:08:22,830 INFO L87 Difference]: Start difference. First operand 123 states and 139 transitions. Second operand has 29 states, 27 states have (on average 2.7777777777777777) internal successors, (75), 25 states have internal predecessors, (75), 7 states have call successors, (11), 4 states have call predecessors, (11), 10 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-08 10:08:23,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 10:08:23,225 INFO L93 Difference]: Finished difference Result 319 states and 364 transitions. [2024-11-08 10:08:23,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-08 10:08:23,225 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 2.7777777777777777) internal successors, (75), 25 states have internal predecessors, (75), 7 states have call successors, (11), 4 states have call predecessors, (11), 10 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 70 [2024-11-08 10:08:23,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 10:08:23,226 INFO L225 Difference]: With dead ends: 319 [2024-11-08 10:08:23,226 INFO L226 Difference]: Without dead ends: 263 [2024-11-08 10:08:23,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 126 SyntacticMatches, 4 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=169, Invalid=1091, Unknown=0, NotChecked=0, Total=1260 [2024-11-08 10:08:23,227 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 85 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 10:08:23,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 346 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 10:08:23,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-11-08 10:08:23,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 201. [2024-11-08 10:08:23,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 165 states have (on average 1.1515151515151516) internal successors, (190), 165 states have internal predecessors, (190), 19 states have call successors, (19), 16 states have call predecessors, (19), 16 states have return successors, (21), 19 states have call predecessors, (21), 19 states have call successors, (21) [2024-11-08 10:08:23,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 230 transitions. [2024-11-08 10:08:23,270 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 230 transitions. Word has length 70 [2024-11-08 10:08:23,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 10:08:23,271 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 230 transitions. [2024-11-08 10:08:23,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 2.7777777777777777) internal successors, (75), 25 states have internal predecessors, (75), 7 states have call successors, (11), 4 states have call predecessors, (11), 10 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-08 10:08:23,271 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 230 transitions. [2024-11-08 10:08:23,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-08 10:08:23,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 10:08:23,272 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 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] [2024-11-08 10:08:23,287 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-08 10:08:23,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-08 10:08:23,472 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 10:08:23,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 10:08:23,473 INFO L85 PathProgramCache]: Analyzing trace with hash 2133417632, now seen corresponding path program 4 times [2024-11-08 10:08:23,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 10:08:23,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883085045] [2024-11-08 10:08:23,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:08:23,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 10:08:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:23,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 10:08:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:23,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 10:08:23,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:23,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 10:08:23,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:23,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 10:08:23,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:23,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-08 10:08:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:23,653 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 21 proven. 28 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-08 10:08:23,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 10:08:23,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883085045] [2024-11-08 10:08:23,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883085045] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 10:08:23,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776068235] [2024-11-08 10:08:23,657 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-08 10:08:23,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:08:23,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 10:08:23,659 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 10:08:23,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 10:08:23,721 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-08 10:08:23,721 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 10:08:23,721 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 10:08:23,723 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 10:08:23,804 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 40 proven. 17 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-08 10:08:23,805 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 10:08:23,876 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 19 proven. 30 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-08 10:08:23,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776068235] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 10:08:23,876 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 10:08:23,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2024-11-08 10:08:23,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063101779] [2024-11-08 10:08:23,876 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 10:08:23,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 10:08:23,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 10:08:23,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 10:08:23,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-08 10:08:23,877 INFO L87 Difference]: Start difference. First operand 201 states and 230 transitions. Second operand has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 10:08:24,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 10:08:24,052 INFO L93 Difference]: Finished difference Result 330 states and 376 transitions. [2024-11-08 10:08:24,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 10:08:24,053 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 72 [2024-11-08 10:08:24,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 10:08:24,054 INFO L225 Difference]: With dead ends: 330 [2024-11-08 10:08:24,054 INFO L226 Difference]: Without dead ends: 226 [2024-11-08 10:08:24,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 144 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-11-08 10:08:24,055 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 14 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 10:08:24,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 245 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 10:08:24,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-08 10:08:24,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 217. [2024-11-08 10:08:24,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 181 states have (on average 1.132596685082873) internal successors, (205), 181 states have internal predecessors, (205), 19 states have call successors, (19), 16 states have call predecessors, (19), 16 states have return successors, (21), 19 states have call predecessors, (21), 19 states have call successors, (21) [2024-11-08 10:08:24,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 245 transitions. [2024-11-08 10:08:24,087 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 245 transitions. Word has length 72 [2024-11-08 10:08:24,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 10:08:24,087 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 245 transitions. [2024-11-08 10:08:24,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 10:08:24,087 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 245 transitions. [2024-11-08 10:08:24,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-08 10:08:24,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 10:08:24,088 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 3, 3, 3, 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] [2024-11-08 10:08:24,101 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-08 10:08:24,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-08 10:08:24,289 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 10:08:24,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 10:08:24,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1215091816, now seen corresponding path program 2 times [2024-11-08 10:08:24,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 10:08:24,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079139536] [2024-11-08 10:08:24,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:08:24,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 10:08:24,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:24,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 10:08:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:24,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 10:08:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:24,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 10:08:24,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:24,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 10:08:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:24,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-08 10:08:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:24,413 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 1 proven. 37 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-08 10:08:24,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 10:08:24,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079139536] [2024-11-08 10:08:24,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079139536] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 10:08:24,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291007582] [2024-11-08 10:08:24,415 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 10:08:24,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:08:24,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 10:08:24,417 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 10:08:24,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-08 10:08:24,497 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 10:08:24,497 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 10:08:24,498 INFO L255 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 10:08:24,499 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 10:08:24,579 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 12 proven. 34 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-08 10:08:24,579 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 10:08:24,648 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 4 proven. 34 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-08 10:08:24,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291007582] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 10:08:24,648 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 10:08:24,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-11-08 10:08:24,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440861110] [2024-11-08 10:08:24,649 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 10:08:24,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-08 10:08:24,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 10:08:24,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-08 10:08:24,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2024-11-08 10:08:24,650 INFO L87 Difference]: Start difference. First operand 217 states and 245 transitions. Second operand has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 10:08:24,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 10:08:24,887 INFO L93 Difference]: Finished difference Result 379 states and 431 transitions. [2024-11-08 10:08:24,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 10:08:24,888 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 74 [2024-11-08 10:08:24,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 10:08:24,889 INFO L225 Difference]: With dead ends: 379 [2024-11-08 10:08:24,889 INFO L226 Difference]: Without dead ends: 222 [2024-11-08 10:08:24,889 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 144 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2024-11-08 10:08:24,890 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 53 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 10:08:24,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 245 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 10:08:24,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-08 10:08:24,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 191. [2024-11-08 10:08:24,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 164 states have (on average 1.1402439024390243) internal successors, (187), 163 states have internal predecessors, (187), 15 states have call successors, (15), 12 states have call predecessors, (15), 11 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-11-08 10:08:24,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 218 transitions. [2024-11-08 10:08:24,916 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 218 transitions. Word has length 74 [2024-11-08 10:08:24,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 10:08:24,916 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 218 transitions. [2024-11-08 10:08:24,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 10:08:24,916 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 218 transitions. [2024-11-08 10:08:24,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-08 10:08:24,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 10:08:24,917 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2024-11-08 10:08:24,932 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-08 10:08:25,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-08 10:08:25,121 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 10:08:25,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 10:08:25,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1328935008, now seen corresponding path program 5 times [2024-11-08 10:08:25,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 10:08:25,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687654812] [2024-11-08 10:08:25,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:08:25,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 10:08:25,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:25,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 10:08:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:25,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 10:08:25,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:25,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 10:08:25,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:25,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 10:08:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:25,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 10:08:25,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:25,221 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 32 proven. 20 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-08 10:08:25,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 10:08:25,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687654812] [2024-11-08 10:08:25,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687654812] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 10:08:25,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743931074] [2024-11-08 10:08:25,221 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-08 10:08:25,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:08:25,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 10:08:25,225 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 10:08:25,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-08 10:08:25,307 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2024-11-08 10:08:25,307 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 10:08:25,308 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 10:08:25,309 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 10:08:25,377 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 56 proven. 4 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-08 10:08:25,378 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 10:08:25,439 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 32 proven. 20 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-08 10:08:25,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743931074] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 10:08:25,440 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 10:08:25,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2024-11-08 10:08:25,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660060979] [2024-11-08 10:08:25,440 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 10:08:25,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-08 10:08:25,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 10:08:25,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-08 10:08:25,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-11-08 10:08:25,441 INFO L87 Difference]: Start difference. First operand 191 states and 218 transitions. Second operand has 19 states, 19 states have (on average 3.736842105263158) internal successors, (71), 19 states have internal predecessors, (71), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 10:08:25,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 10:08:25,666 INFO L93 Difference]: Finished difference Result 239 states and 270 transitions. [2024-11-08 10:08:25,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 10:08:25,667 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.736842105263158) internal successors, (71), 19 states have internal predecessors, (71), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 77 [2024-11-08 10:08:25,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 10:08:25,671 INFO L225 Difference]: With dead ends: 239 [2024-11-08 10:08:25,671 INFO L226 Difference]: Without dead ends: 188 [2024-11-08 10:08:25,672 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 151 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2024-11-08 10:08:25,672 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 71 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 10:08:25,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 217 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 10:08:25,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-08 10:08:25,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 182. [2024-11-08 10:08:25,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 155 states have (on average 1.1096774193548387) internal successors, (172), 154 states have internal predecessors, (172), 15 states have call successors, (15), 12 states have call predecessors, (15), 11 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-11-08 10:08:25,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 203 transitions. [2024-11-08 10:08:25,723 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 203 transitions. Word has length 77 [2024-11-08 10:08:25,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 10:08:25,724 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 203 transitions. [2024-11-08 10:08:25,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.736842105263158) internal successors, (71), 19 states have internal predecessors, (71), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 10:08:25,724 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 203 transitions. [2024-11-08 10:08:25,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 10:08:25,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 10:08:25,725 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2024-11-08 10:08:25,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-08 10:08:25,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-08 10:08:25,930 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 10:08:25,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 10:08:25,938 INFO L85 PathProgramCache]: Analyzing trace with hash 911926688, now seen corresponding path program 6 times [2024-11-08 10:08:25,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 10:08:25,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129924347] [2024-11-08 10:08:25,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:08:25,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 10:08:25,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:26,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 10:08:26,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:26,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 10:08:26,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:26,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 10:08:26,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:26,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-08 10:08:26,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:26,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 10:08:26,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:26,079 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 19 proven. 55 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-08 10:08:26,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 10:08:26,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129924347] [2024-11-08 10:08:26,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129924347] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 10:08:26,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362618172] [2024-11-08 10:08:26,080 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-08 10:08:26,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:08:26,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 10:08:26,081 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 10:08:26,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-08 10:08:28,986 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2024-11-08 10:08:28,986 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 10:08:28,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 10:08:28,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 10:08:29,081 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 77 proven. 22 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-08 10:08:29,082 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 10:08:29,163 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 56 proven. 35 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-08 10:08:29,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362618172] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 10:08:29,164 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 10:08:29,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2024-11-08 10:08:29,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275749334] [2024-11-08 10:08:29,164 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 10:08:29,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 10:08:29,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 10:08:29,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 10:08:29,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-08 10:08:29,167 INFO L87 Difference]: Start difference. First operand 182 states and 203 transitions. Second operand has 14 states, 14 states have (on average 6.214285714285714) internal successors, (87), 14 states have internal predecessors, (87), 3 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 10:08:29,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 10:08:29,367 INFO L93 Difference]: Finished difference Result 231 states and 254 transitions. [2024-11-08 10:08:29,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 10:08:29,367 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.214285714285714) internal successors, (87), 14 states have internal predecessors, (87), 3 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 81 [2024-11-08 10:08:29,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 10:08:29,368 INFO L225 Difference]: With dead ends: 231 [2024-11-08 10:08:29,368 INFO L226 Difference]: Without dead ends: 183 [2024-11-08 10:08:29,369 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 167 SyntacticMatches, 6 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2024-11-08 10:08:29,369 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 26 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 10:08:29,369 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 240 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 10:08:29,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-08 10:08:29,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 174. [2024-11-08 10:08:29,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 149 states have (on average 1.0939597315436242) internal successors, (163), 147 states have internal predecessors, (163), 14 states have call successors, (14), 11 states have call predecessors, (14), 10 states have return successors, (15), 15 states have call predecessors, (15), 14 states have call successors, (15) [2024-11-08 10:08:29,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 192 transitions. [2024-11-08 10:08:29,392 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 192 transitions. Word has length 81 [2024-11-08 10:08:29,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 10:08:29,392 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 192 transitions. [2024-11-08 10:08:29,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.214285714285714) internal successors, (87), 14 states have internal predecessors, (87), 3 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 10:08:29,393 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 192 transitions. [2024-11-08 10:08:29,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-08 10:08:29,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 10:08:29,393 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-08 10:08:29,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-08 10:08:29,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-08 10:08:29,594 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 10:08:29,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 10:08:29,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1054227458, now seen corresponding path program 1 times [2024-11-08 10:08:29,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 10:08:29,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65596271] [2024-11-08 10:08:29,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:08:29,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 10:08:29,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 10:08:29,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [915353519] [2024-11-08 10:08:29,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:08:29,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:08:29,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 10:08:29,647 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 10:08:29,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-08 10:08:30,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:08:30,435 INFO L255 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 128 conjuncts are in the unsatisfiable core [2024-11-08 10:08:30,438 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 10:08:30,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 10:08:30,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-08 10:08:30,689 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 10:08:30,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-11-08 10:08:30,763 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 10:08:30,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-11-08 10:08:31,459 INFO L349 Elim1Store]: treesize reduction 208, result has 33.5 percent of original size [2024-11-08 10:08:31,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 74 treesize of output 142 [2024-11-08 10:08:36,910 INFO L349 Elim1Store]: treesize reduction 140, result has 38.1 percent of original size [2024-11-08 10:08:36,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 313 treesize of output 334 [2024-11-08 10:08:37,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 43 [2024-11-08 10:08:37,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 154 [2024-11-08 10:08:37,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 150 [2024-11-08 10:08:37,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 98 [2024-11-08 10:08:39,938 INFO L349 Elim1Store]: treesize reduction 124, result has 35.8 percent of original size [2024-11-08 10:08:39,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 298 treesize of output 295 [2024-11-08 10:08:40,319 INFO L349 Elim1Store]: treesize reduction 94, result has 24.8 percent of original size [2024-11-08 10:08:40,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 121 treesize of output 250 [2024-11-08 10:08:40,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:08:40,546 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,546 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,549 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,567 INFO L349 Elim1Store]: treesize reduction 32, result has 49.2 percent of original size [2024-11-08 10:08:40,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 72 treesize of output 94 [2024-11-08 10:08:40,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:08:40,593 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:08:40,595 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,598 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,598 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 76 [2024-11-08 10:08:40,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:08:40,616 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:08:40,618 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,620 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,620 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 76 [2024-11-08 10:08:40,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:08:40,635 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,637 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,637 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,638 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,639 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 78 [2024-11-08 10:08:40,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:08:40,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:08:40,662 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,662 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,665 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,684 INFO L349 Elim1Store]: treesize reduction 40, result has 36.5 percent of original size [2024-11-08 10:08:40,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 70 treesize of output 84 [2024-11-08 10:08:40,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:08:40,712 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,712 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,714 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,734 INFO L349 Elim1Store]: treesize reduction 32, result has 49.2 percent of original size [2024-11-08 10:08:40,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 72 treesize of output 94 [2024-11-08 10:08:40,769 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:08:40,773 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,773 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,774 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 76 [2024-11-08 10:08:40,793 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:08:40,795 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,796 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,797 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 76 [2024-11-08 10:08:40,833 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,834 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,835 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,836 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 78 [2024-11-08 10:08:40,854 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:08:40,857 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,858 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,859 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 78 [2024-11-08 10:08:40,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:08:40,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:08:40,878 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,879 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,882 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:08:40,900 INFO L349 Elim1Store]: treesize reduction 40, result has 36.5 percent of original size [2024-11-08 10:08:40,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 70 treesize of output 84 [2024-11-08 10:09:07,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 431 treesize of output 355 [2024-11-08 10:09:07,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:09:08,023 INFO L349 Elim1Store]: treesize reduction 186, result has 18.8 percent of original size [2024-11-08 10:09:08,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 62 treesize of output 102 [2024-11-08 10:09:08,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:09:08,114 INFO L349 Elim1Store]: treesize reduction 172, result has 24.9 percent of original size [2024-11-08 10:09:08,114 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 70 treesize of output 124 [2024-11-08 10:09:08,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:09:08,155 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:09:08,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:09:08,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:09:08,161 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:09:08,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:09:08,163 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:09:08,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 64 [2024-11-08 10:09:08,181 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:09:08,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:09:08,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:09:08,188 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:09:08,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:09:08,190 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:09:08,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 66 [2024-11-08 10:09:08,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:09:08,270 INFO L349 Elim1Store]: treesize reduction 194, result has 15.3 percent of original size [2024-11-08 10:09:08,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 70 treesize of output 102 [2024-11-08 10:09:08,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:09:08,370 INFO L349 Elim1Store]: treesize reduction 172, result has 24.9 percent of original size [2024-11-08 10:09:08,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 86 treesize of output 140 [2024-11-08 10:09:08,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:09:08,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:09:08,426 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:09:08,445 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:09:08,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:09:08,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:09:08,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:09:08,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:09:08,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:09:08,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:09:08,451 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:09:08,456 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 66 [2024-11-08 10:09:08,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:09:08,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:09:08,473 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:09:08,478 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:09:08,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:09:08,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:09:08,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:09:08,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:09:08,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:09:08,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:09:08,485 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 10:09:08,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 66