./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-patterns/array21_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/array21_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 f1a738dced8b73ebc8edf3e480fddcd32bb19127a8255980e93fab5e96705ab3 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 10:07:31,646 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 10:07:31,701 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 10:07:31,705 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 10:07:31,705 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 10:07:31,730 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 10:07:31,732 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 10:07:31,733 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 10:07:31,733 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 10:07:31,734 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 10:07:31,735 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 10:07:31,735 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 10:07:31,735 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 10:07:31,736 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 10:07:31,737 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 10:07:31,737 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 10:07:31,737 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 10:07:31,738 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 10:07:31,738 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 10:07:31,738 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 10:07:31,738 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 10:07:31,738 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 10:07:31,739 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 10:07:31,739 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 10:07:31,739 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 10:07:31,740 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 10:07:31,740 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 10:07:31,740 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 10:07:31,740 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 10:07:31,740 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 10:07:31,740 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 10:07:31,741 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 10:07:31,741 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 10:07:31,741 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 10:07:31,741 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 10:07:31,741 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 10:07:31,742 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 10:07:31,742 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 10:07:31,742 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 10:07:31,742 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 10:07:31,742 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 10:07:31,744 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 10:07:31,744 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1a738dced8b73ebc8edf3e480fddcd32bb19127a8255980e93fab5e96705ab3 [2024-11-08 10:07:31,984 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 10:07:32,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 10:07:32,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 10:07:32,011 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 10:07:32,012 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 10:07:32,013 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array21_pattern.c [2024-11-08 10:07:33,224 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 10:07:33,366 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 10:07:33,367 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array21_pattern.c [2024-11-08 10:07:33,375 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/389996043/28337bd3ac804a05867e6797e2cfde7b/FLAGec8cd3e28 [2024-11-08 10:07:33,777 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/389996043/28337bd3ac804a05867e6797e2cfde7b [2024-11-08 10:07:33,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 10:07:33,780 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 10:07:33,780 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 10:07:33,781 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 10:07:33,785 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 10:07:33,785 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:07:33" (1/1) ... [2024-11-08 10:07:33,786 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44abf45a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:07:33, skipping insertion in model container [2024-11-08 10:07:33,786 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:07:33" (1/1) ... [2024-11-08 10:07:33,801 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 10:07:33,931 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/array21_pattern.c[1340,1353] [2024-11-08 10:07:33,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 10:07:33,953 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 10:07:33,961 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/array21_pattern.c[1340,1353] [2024-11-08 10:07:33,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 10:07:33,982 INFO L204 MainTranslator]: Completed translation [2024-11-08 10:07:33,983 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:07:33 WrapperNode [2024-11-08 10:07:33,983 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 10:07:33,984 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 10:07:33,984 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 10:07:33,984 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 10:07:33,988 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:07:33" (1/1) ... [2024-11-08 10:07:33,993 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:07:33" (1/1) ... [2024-11-08 10:07:34,006 INFO L138 Inliner]: procedures = 17, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 107 [2024-11-08 10:07:34,006 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 10:07:34,007 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 10:07:34,007 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 10:07:34,007 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 10:07:34,015 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:07:33" (1/1) ... [2024-11-08 10:07:34,016 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:07:33" (1/1) ... [2024-11-08 10:07:34,017 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:07:33" (1/1) ... [2024-11-08 10:07:34,029 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-11-08 10:07:34,029 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:07:33" (1/1) ... [2024-11-08 10:07:34,029 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:07:33" (1/1) ... [2024-11-08 10:07:34,033 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:07:33" (1/1) ... [2024-11-08 10:07:34,036 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:07:33" (1/1) ... [2024-11-08 10:07:34,037 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:07:33" (1/1) ... [2024-11-08 10:07:34,038 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:07:33" (1/1) ... [2024-11-08 10:07:34,039 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 10:07:34,040 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 10:07:34,040 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 10:07:34,040 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 10:07:34,041 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:07:33" (1/1) ... [2024-11-08 10:07:34,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 10:07:34,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 10:07:34,067 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 10:07:34,072 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 10:07:34,113 INFO L130 BoogieDeclarations]: Found specification of procedure outerBoundaryPatternCheck [2024-11-08 10:07:34,113 INFO L138 BoogieDeclarations]: Found implementation of procedure outerBoundaryPatternCheck [2024-11-08 10:07:34,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 10:07:34,114 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 10:07:34,114 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 10:07:34,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 10:07:34,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 10:07:34,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 10:07:34,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 10:07:34,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 10:07:34,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 10:07:34,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 10:07:34,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 10:07:34,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 10:07:34,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 10:07:34,203 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 10:07:34,225 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 10:07:34,377 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-08 10:07:34,377 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 10:07:34,392 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 10:07:34,392 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-08 10:07:34,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:07:34 BoogieIcfgContainer [2024-11-08 10:07:34,393 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 10:07:34,394 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 10:07:34,394 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 10:07:34,398 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 10:07:34,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 10:07:33" (1/3) ... [2024-11-08 10:07:34,399 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14553db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 10:07:34, skipping insertion in model container [2024-11-08 10:07:34,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:07:33" (2/3) ... [2024-11-08 10:07:34,400 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14553db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 10:07:34, skipping insertion in model container [2024-11-08 10:07:34,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:07:34" (3/3) ... [2024-11-08 10:07:34,401 INFO L112 eAbstractionObserver]: Analyzing ICFG array21_pattern.c [2024-11-08 10:07:34,415 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 10:07:34,415 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 10:07:34,469 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 10:07:34,476 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;@53d30ac5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 10:07:34,476 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 10:07:34,479 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 32 states have internal predecessors, (48), 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 10:07:34,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-08 10:07:34,485 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 10:07:34,486 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 10:07:34,487 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 10:07:34,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 10:07:34,491 INFO L85 PathProgramCache]: Analyzing trace with hash 2136211159, now seen corresponding path program 1 times [2024-11-08 10:07:34,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 10:07:34,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906742516] [2024-11-08 10:07:34,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:07:34,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 10:07:34,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:34,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 10:07:34,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:34,620 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 10:07:34,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 10:07:34,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906742516] [2024-11-08 10:07:34,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906742516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 10:07:34,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 10:07:34,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 10:07:34,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231392641] [2024-11-08 10:07:34,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 10:07:34,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 10:07:34,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 10:07:34,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 10:07:34,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 10:07:34,649 INFO L87 Difference]: Start difference. First operand has 40 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 32 states have internal predecessors, (48), 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 10:07:34,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 10:07:34,668 INFO L93 Difference]: Finished difference Result 77 states and 115 transitions. [2024-11-08 10:07:34,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 10:07:34,670 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 10:07:34,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 10:07:34,676 INFO L225 Difference]: With dead ends: 77 [2024-11-08 10:07:34,676 INFO L226 Difference]: Without dead ends: 36 [2024-11-08 10:07:34,679 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 10:07:34,682 INFO L432 NwaCegarLoop]: 50 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, 50 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 10:07:34,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 10:07:34,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-08 10:07:34,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-08 10:07:34,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 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 10:07:34,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 46 transitions. [2024-11-08 10:07:34,714 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 46 transitions. Word has length 15 [2024-11-08 10:07:34,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 10:07:34,714 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 46 transitions. [2024-11-08 10:07:34,715 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 10:07:34,715 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 46 transitions. [2024-11-08 10:07:34,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-08 10:07:34,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 10:07:34,716 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 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 10:07:34,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 10:07:34,717 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 10:07:34,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 10:07:34,717 INFO L85 PathProgramCache]: Analyzing trace with hash -699940082, now seen corresponding path program 1 times [2024-11-08 10:07:34,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 10:07:34,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122056768] [2024-11-08 10:07:34,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:07:34,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 10:07:34,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:35,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 10:07:35,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:35,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 10:07:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:35,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 10:07:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:35,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 10:07:35,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:35,068 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 10:07:35,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 10:07:35,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122056768] [2024-11-08 10:07:35,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122056768] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 10:07:35,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187312518] [2024-11-08 10:07:35,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:07:35,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:07:35,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 10:07:35,072 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 10:07:35,073 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 10:07:35,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:35,161 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 10:07:35,167 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 10:07:35,289 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 10:07:35,290 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 10:07:35,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1187312518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 10:07:35,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 10:07:35,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2024-11-08 10:07:35,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093244634] [2024-11-08 10:07:35,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 10:07:35,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 10:07:35,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 10:07:35,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 10:07:35,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 10:07:35,295 INFO L87 Difference]: Start difference. First operand 36 states and 46 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 3 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 10:07:35,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 10:07:35,375 INFO L93 Difference]: Finished difference Result 82 states and 102 transitions. [2024-11-08 10:07:35,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 10:07:35,376 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 3 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 35 [2024-11-08 10:07:35,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 10:07:35,376 INFO L225 Difference]: With dead ends: 82 [2024-11-08 10:07:35,377 INFO L226 Difference]: Without dead ends: 48 [2024-11-08 10:07:35,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 10:07:35,378 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 11 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 10:07:35,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 106 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 10:07:35,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-08 10:07:35,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 37. [2024-11-08 10:07:35,384 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 10:07:35,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2024-11-08 10:07:35,386 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 47 transitions. Word has length 35 [2024-11-08 10:07:35,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 10:07:35,387 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 47 transitions. [2024-11-08 10:07:35,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 3 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 10:07:35,388 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2024-11-08 10:07:35,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-08 10:07:35,390 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 10:07:35,390 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 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 10:07:35,402 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 10:07:35,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:07:35,593 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 10:07:35,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 10:07:35,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1511137102, now seen corresponding path program 1 times [2024-11-08 10:07:35,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 10:07:35,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281343854] [2024-11-08 10:07:35,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:07:35,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 10:07:35,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:35,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 10:07:35,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:35,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 10:07:35,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:35,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 10:07:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:35,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 10:07:35,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:35,738 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 10:07:35,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 10:07:35,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281343854] [2024-11-08 10:07:35,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281343854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 10:07:35,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 10:07:35,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 10:07:35,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525528719] [2024-11-08 10:07:35,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 10:07:35,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 10:07:35,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 10:07:35,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 10:07:35,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 10:07:35,742 INFO L87 Difference]: Start difference. First operand 37 states and 47 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-08 10:07:35,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 10:07:35,793 INFO L93 Difference]: Finished difference Result 80 states and 104 transitions. [2024-11-08 10:07:35,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 10:07:35,794 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2024-11-08 10:07:35,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 10:07:35,794 INFO L225 Difference]: With dead ends: 80 [2024-11-08 10:07:35,795 INFO L226 Difference]: Without dead ends: 48 [2024-11-08 10:07:35,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 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 10:07:35,796 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 13 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 10:07:35,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 72 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 10:07:35,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-08 10:07:35,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 40. [2024-11-08 10:07:35,805 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 10:07:35,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2024-11-08 10:07:35,807 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 38 [2024-11-08 10:07:35,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 10:07:35,808 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2024-11-08 10:07:35,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-08 10:07:35,808 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2024-11-08 10:07:35,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-08 10:07:35,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 10:07:35,809 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 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 10:07:35,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 10:07:35,809 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 10:07:35,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 10:07:35,810 INFO L85 PathProgramCache]: Analyzing trace with hash -50149008, now seen corresponding path program 1 times [2024-11-08 10:07:35,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 10:07:35,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563426129] [2024-11-08 10:07:35,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:07:35,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 10:07:35,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:35,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 10:07:35,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:35,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 10:07:35,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:35,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 10:07:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:35,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 10:07:35,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:35,991 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 10:07:35,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 10:07:35,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563426129] [2024-11-08 10:07:35,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563426129] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 10:07:35,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853209350] [2024-11-08 10:07:35,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:07:35,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:07:35,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 10:07:35,996 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 10:07:35,997 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 10:07:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:36,055 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 10:07:36,056 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 10:07:36,121 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 10:07:36,123 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 10:07:36,203 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 10:07:36,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853209350] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 10:07:36,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 10:07:36,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2024-11-08 10:07:36,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205782989] [2024-11-08 10:07:36,208 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 10:07:36,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 10:07:36,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 10:07:36,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 10:07:36,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-08 10:07:36,209 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-08 10:07:36,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 10:07:36,338 INFO L93 Difference]: Finished difference Result 54 states and 65 transitions. [2024-11-08 10:07:36,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 10:07:36,338 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 40 [2024-11-08 10:07:36,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 10:07:36,339 INFO L225 Difference]: With dead ends: 54 [2024-11-08 10:07:36,340 INFO L226 Difference]: Without dead ends: 50 [2024-11-08 10:07:36,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 82 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-11-08 10:07:36,341 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 49 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 10:07:36,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 134 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 10:07:36,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-08 10:07:36,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 44. [2024-11-08 10:07:36,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 35 states have internal predecessors, (43), 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 10:07:36,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2024-11-08 10:07:36,347 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 40 [2024-11-08 10:07:36,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 10:07:36,347 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2024-11-08 10:07:36,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-08 10:07:36,347 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2024-11-08 10:07:36,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-08 10:07:36,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 10:07:36,348 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:07:36,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 10:07:36,549 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,SelfDestructingSolverStorable3 [2024-11-08 10:07:36,549 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 10:07:36,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 10:07:36,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1300942485, now seen corresponding path program 1 times [2024-11-08 10:07:36,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 10:07:36,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427357872] [2024-11-08 10:07:36,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:07:36,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 10:07:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:36,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 10:07:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:36,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 10:07:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:36,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 10:07:36,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:36,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 10:07:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:36,659 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 10:07:36,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 10:07:36,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427357872] [2024-11-08 10:07:36,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427357872] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 10:07:36,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445616285] [2024-11-08 10:07:36,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:07:36,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:07:36,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 10:07:36,661 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 10:07:36,676 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 10:07:36,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:36,766 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 10:07:36,768 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 10:07:36,808 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 10:07:36,808 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 10:07:36,890 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 10:07:36,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445616285] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 10:07:36,890 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 10:07:36,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-11-08 10:07:36,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602742232] [2024-11-08 10:07:36,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 10:07:36,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 10:07:36,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 10:07:36,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 10:07:36,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-08 10:07:36,892 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-08 10:07:37,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 10:07:37,029 INFO L93 Difference]: Finished difference Result 86 states and 108 transitions. [2024-11-08 10:07:37,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 10:07:37,029 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 45 [2024-11-08 10:07:37,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 10:07:37,030 INFO L225 Difference]: With dead ends: 86 [2024-11-08 10:07:37,030 INFO L226 Difference]: Without dead ends: 52 [2024-11-08 10:07:37,030 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 90 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 10:07:37,031 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 119 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 10:07:37,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 88 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 10:07:37,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-08 10:07:37,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2024-11-08 10:07:37,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 39 states have (on average 1.205128205128205) internal successors, (47), 39 states have internal predecessors, (47), 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 10:07:37,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 57 transitions. [2024-11-08 10:07:37,037 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 57 transitions. Word has length 45 [2024-11-08 10:07:37,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 10:07:37,037 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 57 transitions. [2024-11-08 10:07:37,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-08 10:07:37,038 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2024-11-08 10:07:37,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-08 10:07:37,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 10:07:37,039 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-08 10:07:37,052 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 10:07:37,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:07:37,240 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 10:07:37,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 10:07:37,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1544610617, now seen corresponding path program 2 times [2024-11-08 10:07:37,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 10:07:37,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362111073] [2024-11-08 10:07:37,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:07:37,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 10:07:37,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:37,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 10:07:37,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:37,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 10:07:37,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:37,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 10:07:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:37,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 10:07:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:37,338 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-08 10:07:37,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 10:07:37,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362111073] [2024-11-08 10:07:37,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362111073] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 10:07:37,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795086409] [2024-11-08 10:07:37,338 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 10:07:37,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:07:37,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 10:07:37,340 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 10:07:37,341 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 10:07:37,390 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 10:07:37,390 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 10:07:37,391 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 10:07:37,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 10:07:37,451 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 10:07:37,455 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 10:07:37,509 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-08 10:07:37,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795086409] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 10:07:37,510 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 10:07:37,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-08 10:07:37,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394697975] [2024-11-08 10:07:37,510 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 10:07:37,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 10:07:37,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 10:07:37,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 10:07:37,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-08 10:07:37,512 INFO L87 Difference]: Start difference. First operand 48 states and 57 transitions. Second operand has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 15 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 10:07:37,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 10:07:37,633 INFO L93 Difference]: Finished difference Result 106 states and 128 transitions. [2024-11-08 10:07:37,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 10:07:37,634 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 15 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 49 [2024-11-08 10:07:37,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 10:07:37,635 INFO L225 Difference]: With dead ends: 106 [2024-11-08 10:07:37,636 INFO L226 Difference]: Without dead ends: 74 [2024-11-08 10:07:37,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 96 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 10:07:37,636 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 40 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 10:07:37,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 217 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 10:07:37,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-08 10:07:37,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 62. [2024-11-08 10:07:37,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 53 states have (on average 1.1886792452830188) internal successors, (63), 53 states have internal predecessors, (63), 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 10:07:37,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 73 transitions. [2024-11-08 10:07:37,645 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 73 transitions. Word has length 49 [2024-11-08 10:07:37,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 10:07:37,645 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 73 transitions. [2024-11-08 10:07:37,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 15 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 10:07:37,645 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 73 transitions. [2024-11-08 10:07:37,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-08 10:07:37,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 10:07:37,647 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2024-11-08 10:07:37,661 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 10:07:37,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:07:37,851 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 10:07:37,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 10:07:37,851 INFO L85 PathProgramCache]: Analyzing trace with hash -725408594, now seen corresponding path program 3 times [2024-11-08 10:07:37,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 10:07:37,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673065683] [2024-11-08 10:07:37,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:07:37,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 10:07:37,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 10:07:37,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [423135250] [2024-11-08 10:07:37,878 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 10:07:37,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:07:37,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 10:07:37,883 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 10:07:37,884 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 10:07:38,171 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-08 10:07:38,171 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 10:07:38,173 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 80 conjuncts are in the unsatisfiable core [2024-11-08 10:07:38,181 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 10:07:38,265 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 10:07:38,333 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 10:07:38,460 INFO L349 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2024-11-08 10:07:38,460 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 10:07:38,564 INFO L349 Elim1Store]: treesize reduction 52, result has 22.4 percent of original size [2024-11-08 10:07:38,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 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 10:07:39,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:39,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:39,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 10:07:40,106 INFO L349 Elim1Store]: treesize reduction 508, result has 25.0 percent of original size [2024-11-08 10:07:40,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 5 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 78 case distinctions, treesize of input 122 treesize of output 220 [2024-11-08 10:07:41,647 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 10:07:41,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 117 treesize of output 53 [2024-11-08 10:07:41,767 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 11 proven. 50 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 10:07:41,768 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 10:07:43,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 10:07:43,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673065683] [2024-11-08 10:07:43,443 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 10:07:43,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423135250] [2024-11-08 10:07:43,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423135250] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 10:07:43,443 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 10:07:43,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2024-11-08 10:07:43,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490674847] [2024-11-08 10:07:43,443 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 10:07:43,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-08 10:07:43,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 10:07:43,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-08 10:07:43,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=388, Invalid=3518, Unknown=0, NotChecked=0, Total=3906 [2024-11-08 10:07:43,446 INFO L87 Difference]: Start difference. First operand 62 states and 73 transitions. Second operand has 41 states, 40 states have (on average 1.375) internal successors, (55), 38 states have internal predecessors, (55), 3 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 10:07:44,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 10:07:44,883 INFO L93 Difference]: Finished difference Result 177 states and 218 transitions. [2024-11-08 10:07:44,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-08 10:07:44,883 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 1.375) internal successors, (55), 38 states have internal predecessors, (55), 3 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 63 [2024-11-08 10:07:44,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 10:07:44,885 INFO L225 Difference]: With dead ends: 177 [2024-11-08 10:07:44,885 INFO L226 Difference]: Without dead ends: 134 [2024-11-08 10:07:44,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1745 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=475, Invalid=4355, Unknown=0, NotChecked=0, Total=4830 [2024-11-08 10:07:44,888 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 54 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 1534 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 1554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 10:07:44,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 622 Invalid, 1554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1534 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 10:07:44,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-08 10:07:44,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 111. [2024-11-08 10:07:44,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 94 states have (on average 1.1808510638297873) internal successors, (111), 95 states have internal predecessors, (111), 9 states have call successors, (9), 6 states have call predecessors, (9), 7 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-11-08 10:07:44,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 131 transitions. [2024-11-08 10:07:44,902 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 131 transitions. Word has length 63 [2024-11-08 10:07:44,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 10:07:44,903 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 131 transitions. [2024-11-08 10:07:44,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 1.375) internal successors, (55), 38 states have internal predecessors, (55), 3 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 10:07:44,903 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 131 transitions. [2024-11-08 10:07:44,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-08 10:07:44,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 10:07:44,904 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2024-11-08 10:07:44,914 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 10:07:45,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:07:45,105 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 10:07:45,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 10:07:45,105 INFO L85 PathProgramCache]: Analyzing trace with hash 236205423, now seen corresponding path program 1 times [2024-11-08 10:07:45,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 10:07:45,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87186660] [2024-11-08 10:07:45,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:07:45,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 10:07:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:45,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 10:07:45,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:45,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 10:07:45,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:45,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 10:07:45,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:45,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 10:07:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:45,215 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-08 10:07:45,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 10:07:45,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87186660] [2024-11-08 10:07:45,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87186660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 10:07:45,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 10:07:45,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 10:07:45,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548193148] [2024-11-08 10:07:45,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 10:07:45,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 10:07:45,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 10:07:45,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 10:07:45,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 10:07:45,217 INFO L87 Difference]: Start difference. First operand 111 states and 131 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-08 10:07:45,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 10:07:45,238 INFO L93 Difference]: Finished difference Result 154 states and 184 transitions. [2024-11-08 10:07:45,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 10:07:45,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 63 [2024-11-08 10:07:45,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 10:07:45,240 INFO L225 Difference]: With dead ends: 154 [2024-11-08 10:07:45,240 INFO L226 Difference]: Without dead ends: 115 [2024-11-08 10:07:45,240 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 10:07:45,240 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 10:07:45,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 178 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 10:07:45,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-08 10:07:45,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-11-08 10:07:45,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 97 states have (on average 1.1649484536082475) internal successors, (113), 98 states have internal predecessors, (113), 9 states have call successors, (9), 6 states have call predecessors, (9), 8 states have return successors, (13), 10 states have call predecessors, (13), 9 states have call successors, (13) [2024-11-08 10:07:45,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 135 transitions. [2024-11-08 10:07:45,256 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 135 transitions. Word has length 63 [2024-11-08 10:07:45,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 10:07:45,256 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 135 transitions. [2024-11-08 10:07:45,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-08 10:07:45,256 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 135 transitions. [2024-11-08 10:07:45,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-08 10:07:45,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 10:07:45,257 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 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] [2024-11-08 10:07:45,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 10:07:45,257 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 10:07:45,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 10:07:45,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1172698608, now seen corresponding path program 4 times [2024-11-08 10:07:45,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 10:07:45,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029377147] [2024-11-08 10:07:45,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:07:45,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 10:07:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:45,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 10:07:45,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:45,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 10:07:45,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:45,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 10:07:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:45,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 10:07:45,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:45,380 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 21 proven. 28 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-08 10:07:45,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 10:07:45,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029377147] [2024-11-08 10:07:45,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029377147] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 10:07:45,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840066516] [2024-11-08 10:07:45,381 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-08 10:07:45,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:07:45,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 10:07:45,383 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 10:07:45,384 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 10:07:45,447 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-08 10:07:45,447 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 10:07:45,448 INFO L255 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 10:07:45,449 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 10:07:45,524 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 40 proven. 17 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 10:07:45,524 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 10:07:45,587 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 19 proven. 30 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-08 10:07:45,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840066516] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 10:07:45,588 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 10:07:45,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2024-11-08 10:07:45,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103836627] [2024-11-08 10:07:45,588 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 10:07:45,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 10:07:45,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 10:07:45,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 10:07:45,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-08 10:07:45,589 INFO L87 Difference]: Start difference. First operand 115 states and 135 transitions. Second operand has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 10:07:45,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 10:07:45,703 INFO L93 Difference]: Finished difference Result 281 states and 335 transitions. [2024-11-08 10:07:45,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 10:07:45,703 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2024-11-08 10:07:45,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 10:07:45,704 INFO L225 Difference]: With dead ends: 281 [2024-11-08 10:07:45,704 INFO L226 Difference]: Without dead ends: 173 [2024-11-08 10:07:45,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 128 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 10:07:45,705 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 24 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 10:07:45,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 185 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 10:07:45,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-08 10:07:45,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 160. [2024-11-08 10:07:45,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 135 states have (on average 1.1703703703703703) internal successors, (158), 136 states have internal predecessors, (158), 13 states have call successors, (13), 8 states have call predecessors, (13), 11 states have return successors, (19), 15 states have call predecessors, (19), 13 states have call successors, (19) [2024-11-08 10:07:45,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 190 transitions. [2024-11-08 10:07:45,725 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 190 transitions. Word has length 65 [2024-11-08 10:07:45,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 10:07:45,725 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 190 transitions. [2024-11-08 10:07:45,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 10:07:45,725 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 190 transitions. [2024-11-08 10:07:45,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-08 10:07:45,726 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 10:07:45,726 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 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] [2024-11-08 10:07:45,739 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 10:07:45,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:07:45,927 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 10:07:45,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 10:07:45,927 INFO L85 PathProgramCache]: Analyzing trace with hash -2109828498, now seen corresponding path program 5 times [2024-11-08 10:07:45,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 10:07:45,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053756022] [2024-11-08 10:07:45,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:07:45,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 10:07:45,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:46,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 10:07:46,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:46,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 10:07:46,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:46,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 10:07:46,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:46,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 10:07:46,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:46,057 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 1 proven. 37 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-08 10:07:46,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 10:07:46,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053756022] [2024-11-08 10:07:46,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053756022] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 10:07:46,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112684378] [2024-11-08 10:07:46,058 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-08 10:07:46,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:07:46,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 10:07:46,060 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 10:07:46,060 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 10:07:46,128 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-08 10:07:46,128 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 10:07:46,129 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 10:07:46,132 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 10:07:46,212 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 34 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-08 10:07:46,212 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 10:07:46,277 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 4 proven. 34 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-08 10:07:46,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112684378] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 10:07:46,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 10:07:46,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-11-08 10:07:46,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733291717] [2024-11-08 10:07:46,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 10:07:46,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-08 10:07:46,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 10:07:46,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-08 10:07:46,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2024-11-08 10:07:46,279 INFO L87 Difference]: Start difference. First operand 160 states and 190 transitions. Second operand has 20 states, 20 states have (on average 3.55) internal successors, (71), 20 states have internal predecessors, (71), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 10:07:46,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 10:07:46,499 INFO L93 Difference]: Finished difference Result 318 states and 381 transitions. [2024-11-08 10:07:46,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 10:07:46,499 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.55) internal successors, (71), 20 states have internal predecessors, (71), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2024-11-08 10:07:46,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 10:07:46,500 INFO L225 Difference]: With dead ends: 318 [2024-11-08 10:07:46,500 INFO L226 Difference]: Without dead ends: 206 [2024-11-08 10:07:46,501 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 128 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 10:07:46,501 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 41 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 10:07:46,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 401 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 10:07:46,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-11-08 10:07:46,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 173. [2024-11-08 10:07:46,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 148 states have (on average 1.1756756756756757) internal successors, (174), 149 states have internal predecessors, (174), 13 states have call successors, (13), 8 states have call predecessors, (13), 11 states have return successors, (19), 15 states have call predecessors, (19), 13 states have call successors, (19) [2024-11-08 10:07:46,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 206 transitions. [2024-11-08 10:07:46,524 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 206 transitions. Word has length 67 [2024-11-08 10:07:46,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 10:07:46,524 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 206 transitions. [2024-11-08 10:07:46,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.55) internal successors, (71), 20 states have internal predecessors, (71), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 10:07:46,524 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 206 transitions. [2024-11-08 10:07:46,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-08 10:07:46,525 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 10:07:46,525 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] [2024-11-08 10:07:46,542 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 10:07:46,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:07:46,726 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 10:07:46,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 10:07:46,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1276732650, now seen corresponding path program 1 times [2024-11-08 10:07:46,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 10:07:46,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707928758] [2024-11-08 10:07:46,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:07:46,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 10:07:46,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:46,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 10:07:46,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:46,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 10:07:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:46,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 10:07:46,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:46,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 10:07:46,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:46,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 10:07:46,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:46,986 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 5 proven. 23 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-08 10:07:46,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 10:07:46,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707928758] [2024-11-08 10:07:46,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707928758] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 10:07:46,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616611729] [2024-11-08 10:07:46,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:07:46,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:07:46,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 10:07:46,990 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 10:07:46,991 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 10:07:47,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:47,060 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 10:07:47,061 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 10:07:47,179 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 15 proven. 20 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-08 10:07:47,179 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 10:07:47,317 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 5 proven. 23 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-08 10:07:47,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616611729] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 10:07:47,317 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 10:07:47,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 11] total 21 [2024-11-08 10:07:47,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022774533] [2024-11-08 10:07:47,318 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 10:07:47,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-08 10:07:47,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 10:07:47,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-08 10:07:47,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2024-11-08 10:07:47,319 INFO L87 Difference]: Start difference. First operand 173 states and 206 transitions. Second operand has 21 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 19 states have internal predecessors, (64), 5 states have call successors, (11), 4 states have call predecessors, (11), 8 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-08 10:07:47,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 10:07:47,538 INFO L93 Difference]: Finished difference Result 249 states and 288 transitions. [2024-11-08 10:07:47,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-08 10:07:47,543 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 19 states have internal predecessors, (64), 5 states have call successors, (11), 4 states have call predecessors, (11), 8 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) Word has length 69 [2024-11-08 10:07:47,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 10:07:47,546 INFO L225 Difference]: With dead ends: 249 [2024-11-08 10:07:47,547 INFO L226 Difference]: Without dead ends: 195 [2024-11-08 10:07:47,547 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 132 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=587, Unknown=0, NotChecked=0, Total=702 [2024-11-08 10:07:47,547 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 62 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 10:07:47,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 222 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 10:07:47,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-08 10:07:47,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 174. [2024-11-08 10:07:47,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 149 states have (on average 1.174496644295302) internal successors, (175), 151 states have internal predecessors, (175), 13 states have call successors, (13), 9 states have call predecessors, (13), 11 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-08 10:07:47,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 204 transitions. [2024-11-08 10:07:47,570 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 204 transitions. Word has length 69 [2024-11-08 10:07:47,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 10:07:47,570 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 204 transitions. [2024-11-08 10:07:47,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 19 states have internal predecessors, (64), 5 states have call successors, (11), 4 states have call predecessors, (11), 8 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-08 10:07:47,570 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 204 transitions. [2024-11-08 10:07:47,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-08 10:07:47,572 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 10:07:47,572 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 4, 4, 3, 3, 3, 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] [2024-11-08 10:07:47,585 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-08 10:07:47,772 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,SelfDestructingSolverStorable10 [2024-11-08 10:07:47,773 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 10:07:47,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 10:07:47,774 INFO L85 PathProgramCache]: Analyzing trace with hash -698104178, now seen corresponding path program 6 times [2024-11-08 10:07:47,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 10:07:47,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640782327] [2024-11-08 10:07:47,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:07:47,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 10:07:47,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:47,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 10:07:47,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:47,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 10:07:47,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:47,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 10:07:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:47,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-08 10:07:47,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:47,896 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 19 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-08 10:07:47,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 10:07:47,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640782327] [2024-11-08 10:07:47,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640782327] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 10:07:47,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504800416] [2024-11-08 10:07:47,896 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-08 10:07:47,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:07:47,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 10:07:47,898 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 10:07:47,899 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 10:07:48,412 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2024-11-08 10:07:48,413 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 10:07:48,414 INFO L255 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 10:07:48,416 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 10:07:48,484 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 77 proven. 22 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 10:07:48,484 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 10:07:48,553 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 56 proven. 35 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-08 10:07:48,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504800416] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 10:07:48,553 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 10:07:48,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2024-11-08 10:07:48,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281989423] [2024-11-08 10:07:48,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 10:07:48,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 10:07:48,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 10:07:48,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 10:07:48,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-08 10:07:48,554 INFO L87 Difference]: Start difference. First operand 174 states and 204 transitions. Second operand has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 14 states have internal predecessors, (83), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-08 10:07:48,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 10:07:48,687 INFO L93 Difference]: Finished difference Result 254 states and 290 transitions. [2024-11-08 10:07:48,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 10:07:48,688 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 14 states have internal predecessors, (83), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 74 [2024-11-08 10:07:48,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 10:07:48,689 INFO L225 Difference]: With dead ends: 254 [2024-11-08 10:07:48,689 INFO L226 Difference]: Without dead ends: 168 [2024-11-08 10:07:48,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 151 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 10:07:48,689 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 29 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 10:07:48,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 225 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 10:07:48,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-08 10:07:48,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 159. [2024-11-08 10:07:48,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 136 states have (on average 1.1397058823529411) internal successors, (155), 137 states have internal predecessors, (155), 12 states have call successors, (12), 8 states have call predecessors, (12), 10 states have return successors, (15), 13 states have call predecessors, (15), 12 states have call successors, (15) [2024-11-08 10:07:48,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 182 transitions. [2024-11-08 10:07:48,706 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 182 transitions. Word has length 74 [2024-11-08 10:07:48,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 10:07:48,706 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 182 transitions. [2024-11-08 10:07:48,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 14 states have internal predecessors, (83), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-08 10:07:48,706 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 182 transitions. [2024-11-08 10:07:48,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 10:07:48,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 10:07:48,707 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 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 10:07:48,713 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 10:07:48,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:07:48,907 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 10:07:48,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 10:07:48,908 INFO L85 PathProgramCache]: Analyzing trace with hash 2141231294, now seen corresponding path program 1 times [2024-11-08 10:07:48,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 10:07:48,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782920626] [2024-11-08 10:07:48,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:07:48,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 10:07:48,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 10:07:48,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1180768226] [2024-11-08 10:07:48,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 10:07:48,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 10:07:48,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 10:07:48,949 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 10:07:48,951 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 10:07:49,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 10:07:49,197 INFO L255 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-11-08 10:07:49,200 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 10:07:49,228 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 10:07:49,268 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 10:07:49,402 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 10:07:49,402 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 10:07:49,460 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 10:07:49,460 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 10:07:49,974 INFO L349 Elim1Store]: treesize reduction 64, result has 48.8 percent of original size [2024-11-08 10:07:49,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 10 case distinctions, treesize of input 46 treesize of output 86 [2024-11-08 10:08:21,098 INFO L349 Elim1Store]: treesize reduction 1632, result has 27.5 percent of original size [2024-11-08 10:08:21,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 26 select indices, 26 select index equivalence classes, 6 disjoint index pairs (out of 325 index pairs), introduced 26 new quantified variables, introduced 351 case distinctions, treesize of input 299 treesize of output 757