./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-30.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-30.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5536eec27f0e30a34c1a96e838ac5cf11c75a521ed3ec15ff2fb1a338cbfa9d3 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 06:22:49,610 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 06:22:49,672 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 06:22:49,678 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 06:22:49,679 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 06:22:49,699 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 06:22:49,700 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 06:22:49,700 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 06:22:49,701 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 06:22:49,701 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 06:22:49,702 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 06:22:49,702 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 06:22:49,703 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 06:22:49,704 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 06:22:49,706 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 06:22:49,706 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 06:22:49,706 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 06:22:49,707 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 06:22:49,707 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 06:22:49,707 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 06:22:49,707 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 06:22:49,708 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 06:22:49,708 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 06:22:49,709 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 06:22:49,709 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 06:22:49,709 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 06:22:49,710 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 06:22:49,710 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 06:22:49,710 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 06:22:49,711 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 06:22:49,711 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 06:22:49,711 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 06:22:49,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 06:22:49,712 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 06:22:49,712 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 06:22:49,713 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 06:22:49,713 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 06:22:49,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 06:22:49,714 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 06:22:49,714 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 06:22:49,714 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 06:22:49,714 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 06:22:49,715 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5536eec27f0e30a34c1a96e838ac5cf11c75a521ed3ec15ff2fb1a338cbfa9d3 [2024-11-20 06:22:49,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 06:22:50,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 06:22:50,008 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 06:22:50,009 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 06:22:50,010 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 06:22:50,011 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-30.i [2024-11-20 06:22:51,643 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 06:22:51,898 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 06:22:51,899 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-30.i [2024-11-20 06:22:51,913 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0f656d46/c52614dc8355432f812e1522071e6eaa/FLAGf9ee818ff [2024-11-20 06:22:52,231 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0f656d46/c52614dc8355432f812e1522071e6eaa [2024-11-20 06:22:52,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 06:22:52,235 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 06:22:52,236 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 06:22:52,236 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 06:22:52,242 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 06:22:52,242 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:22:52" (1/1) ... [2024-11-20 06:22:52,243 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18e6c36d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:22:52, skipping insertion in model container [2024-11-20 06:22:52,244 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:22:52" (1/1) ... [2024-11-20 06:22:52,283 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 06:22:52,503 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-30.i[916,929] [2024-11-20 06:22:52,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 06:22:52,683 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 06:22:52,699 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-30.i[916,929] [2024-11-20 06:22:52,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 06:22:52,794 INFO L204 MainTranslator]: Completed translation [2024-11-20 06:22:52,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:22:52 WrapperNode [2024-11-20 06:22:52,795 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 06:22:52,796 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 06:22:52,797 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 06:22:52,797 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 06:22:52,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:22:52" (1/1) ... [2024-11-20 06:22:52,819 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:22:52" (1/1) ... [2024-11-20 06:22:52,875 INFO L138 Inliner]: procedures = 26, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 247 [2024-11-20 06:22:52,876 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 06:22:52,877 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 06:22:52,877 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 06:22:52,877 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 06:22:52,888 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:22:52" (1/1) ... [2024-11-20 06:22:52,889 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:22:52" (1/1) ... [2024-11-20 06:22:52,894 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:22:52" (1/1) ... [2024-11-20 06:22:52,916 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-20 06:22:52,920 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:22:52" (1/1) ... [2024-11-20 06:22:52,921 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:22:52" (1/1) ... [2024-11-20 06:22:52,945 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:22:52" (1/1) ... [2024-11-20 06:22:52,953 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:22:52" (1/1) ... [2024-11-20 06:22:52,963 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:22:52" (1/1) ... [2024-11-20 06:22:52,968 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:22:52" (1/1) ... [2024-11-20 06:22:52,978 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 06:22:52,980 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 06:22:52,980 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 06:22:52,981 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 06:22:52,982 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:22:52" (1/1) ... [2024-11-20 06:22:52,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 06:22:52,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 06:22:53,019 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) [2024-11-20 06:22:53,023 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 [2024-11-20 06:22:53,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 06:22:53,071 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 06:22:53,072 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 06:22:53,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 06:22:53,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 06:22:53,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 06:22:53,172 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 06:22:53,176 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 06:22:53,777 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-20 06:22:53,777 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 06:22:53,791 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 06:22:53,792 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 06:22:53,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:22:53 BoogieIcfgContainer [2024-11-20 06:22:53,792 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 06:22:53,795 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 06:22:53,795 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 06:22:53,798 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 06:22:53,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:22:52" (1/3) ... [2024-11-20 06:22:53,799 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7c8f51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:22:53, skipping insertion in model container [2024-11-20 06:22:53,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:22:52" (2/3) ... [2024-11-20 06:22:53,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7c8f51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:22:53, skipping insertion in model container [2024-11-20 06:22:53,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:22:53" (3/3) ... [2024-11-20 06:22:53,801 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-30.i [2024-11-20 06:22:53,819 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 06:22:53,820 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 06:22:53,888 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 06:22:53,895 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;@5c1659f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 06:22:53,896 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 06:22:53,902 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 75 states have (on average 1.4666666666666666) internal successors, (110), 76 states have internal predecessors, (110), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-20 06:22:53,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-20 06:22:53,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:22:53,921 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:22:53,923 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:22:53,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:22:53,929 INFO L85 PathProgramCache]: Analyzing trace with hash 435639877, now seen corresponding path program 1 times [2024-11-20 06:22:53,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:22:53,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464061615] [2024-11-20 06:22:53,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:22:53,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:22:54,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:54,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:22:54,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:54,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:22:54,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:54,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:22:54,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:54,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 06:22:54,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:54,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-20 06:22:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:54,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-20 06:22:54,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:54,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 06:22:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:54,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-20 06:22:54,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:54,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 06:22:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:54,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 06:22:54,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:54,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 06:22:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:54,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-20 06:22:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:54,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 06:22:54,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:54,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 06:22:54,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:54,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 06:22:54,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:54,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 06:22:54,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:54,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 06:22:54,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:54,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 06:22:54,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:54,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 06:22:54,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:54,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 06:22:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:54,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-20 06:22:54,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:54,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 06:22:54,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:54,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-20 06:22:54,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:54,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 06:22:54,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:54,517 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-20 06:22:54,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:22:54,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464061615] [2024-11-20 06:22:54,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464061615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:22:54,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:22:54,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 06:22:54,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585530497] [2024-11-20 06:22:54,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:22:54,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 06:22:54,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:22:54,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 06:22:54,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 06:22:54,558 INFO L87 Difference]: Start difference. First operand has 102 states, 75 states have (on average 1.4666666666666666) internal successors, (110), 76 states have internal predecessors, (110), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-20 06:22:54,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:22:54,599 INFO L93 Difference]: Finished difference Result 192 states and 326 transitions. [2024-11-20 06:22:54,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 06:22:54,603 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) Word has length 165 [2024-11-20 06:22:54,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:22:54,611 INFO L225 Difference]: With dead ends: 192 [2024-11-20 06:22:54,611 INFO L226 Difference]: Without dead ends: 93 [2024-11-20 06:22:54,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 06:22:54,617 INFO L432 NwaCegarLoop]: 141 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, 141 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 [2024-11-20 06:22:54,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 06:22:54,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-20 06:22:54,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-20 06:22:54,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 67 states have (on average 1.3880597014925373) internal successors, (93), 67 states have internal predecessors, (93), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-20 06:22:54,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 141 transitions. [2024-11-20 06:22:54,683 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 141 transitions. Word has length 165 [2024-11-20 06:22:54,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:22:54,683 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 141 transitions. [2024-11-20 06:22:54,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-20 06:22:54,684 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 141 transitions. [2024-11-20 06:22:54,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-20 06:22:54,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:22:54,690 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:22:54,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 06:22:54,691 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:22:54,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:22:54,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1395853833, now seen corresponding path program 1 times [2024-11-20 06:22:54,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:22:54,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572049227] [2024-11-20 06:22:54,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:22:54,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:22:54,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:55,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:22:55,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:55,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:22:55,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:55,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:22:55,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:55,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 06:22:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:55,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-20 06:22:55,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:55,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-20 06:22:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:55,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 06:22:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:55,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-20 06:22:55,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:55,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 06:22:55,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:55,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 06:22:55,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:55,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 06:22:55,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:55,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-20 06:22:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:55,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 06:22:55,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:55,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 06:22:55,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:55,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 06:22:55,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:55,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 06:22:55,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:55,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 06:22:55,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:55,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 06:22:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:55,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 06:22:55,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:55,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 06:22:55,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:55,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-20 06:22:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:55,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 06:22:55,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:55,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-20 06:22:55,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:55,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 06:22:55,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:55,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-20 06:22:55,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:22:55,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572049227] [2024-11-20 06:22:55,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572049227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:22:55,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:22:55,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 06:22:55,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049903368] [2024-11-20 06:22:55,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:22:55,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 06:22:55,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:22:55,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 06:22:55,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 06:22:55,735 INFO L87 Difference]: Start difference. First operand 93 states and 141 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-20 06:22:56,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:22:56,038 INFO L93 Difference]: Finished difference Result 333 states and 501 transitions. [2024-11-20 06:22:56,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 06:22:56,039 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 165 [2024-11-20 06:22:56,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:22:56,044 INFO L225 Difference]: With dead ends: 333 [2024-11-20 06:22:56,045 INFO L226 Difference]: Without dead ends: 243 [2024-11-20 06:22:56,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 06:22:56,048 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 199 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 06:22:56,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 471 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 06:22:56,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2024-11-20 06:22:56,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 175. [2024-11-20 06:22:56,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 124 states have (on average 1.3548387096774193) internal successors, (168), 124 states have internal predecessors, (168), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-20 06:22:56,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 264 transitions. [2024-11-20 06:22:56,106 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 264 transitions. Word has length 165 [2024-11-20 06:22:56,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:22:56,107 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 264 transitions. [2024-11-20 06:22:56,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-20 06:22:56,109 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 264 transitions. [2024-11-20 06:22:56,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-20 06:22:56,115 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:22:56,116 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:22:56,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 06:22:56,116 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:22:56,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:22:56,117 INFO L85 PathProgramCache]: Analyzing trace with hash -341933495, now seen corresponding path program 1 times [2024-11-20 06:22:56,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:22:56,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306716012] [2024-11-20 06:22:56,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:22:56,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:22:56,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:57,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:22:57,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:57,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:22:57,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:57,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:22:57,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:57,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 06:22:57,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:57,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-20 06:22:57,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:57,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-20 06:22:57,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:57,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 06:22:57,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:57,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-20 06:22:57,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:57,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 06:22:57,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:57,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 06:22:57,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:57,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 06:22:57,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:57,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-20 06:22:57,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:57,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 06:22:57,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:57,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 06:22:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:57,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 06:22:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:57,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 06:22:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:57,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 06:22:57,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:57,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 06:22:57,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:57,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 06:22:57,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:57,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 06:22:57,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:57,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-20 06:22:57,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:57,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 06:22:57,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:57,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-20 06:22:57,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:57,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 06:22:57,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:57,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 48 proven. 21 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2024-11-20 06:22:57,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:22:57,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306716012] [2024-11-20 06:22:57,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306716012] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 06:22:57,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126811731] [2024-11-20 06:22:57,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:22:57,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 06:22:57,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 06:22:57,412 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) [2024-11-20 06:22:57,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 06:22:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:22:57,562 INFO L255 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-20 06:22:57,576 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 06:22:57,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 534 proven. 33 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2024-11-20 06:22:57,972 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 06:22:58,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 99 proven. 36 refuted. 0 times theorem prover too weak. 969 trivial. 0 not checked. [2024-11-20 06:22:58,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126811731] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 06:22:58,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 06:22:58,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 17 [2024-11-20 06:22:58,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888559036] [2024-11-20 06:22:58,414 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 06:22:58,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-20 06:22:58,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:22:58,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-20 06:22:58,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-20 06:22:58,418 INFO L87 Difference]: Start difference. First operand 175 states and 264 transitions. Second operand has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 17 states have internal predecessors, (90), 3 states have call successors, (36), 3 states have call predecessors, (36), 7 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2024-11-20 06:22:58,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:22:58,940 INFO L93 Difference]: Finished difference Result 279 states and 411 transitions. [2024-11-20 06:22:58,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 06:22:58,941 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 17 states have internal predecessors, (90), 3 states have call successors, (36), 3 states have call predecessors, (36), 7 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 166 [2024-11-20 06:22:58,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:22:58,944 INFO L225 Difference]: With dead ends: 279 [2024-11-20 06:22:58,946 INFO L226 Difference]: Without dead ends: 107 [2024-11-20 06:22:58,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 372 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=563, Unknown=0, NotChecked=0, Total=812 [2024-11-20 06:22:58,952 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 430 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 06:22:58,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 261 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 06:22:58,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-20 06:22:58,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 101. [2024-11-20 06:22:58,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 73 states have (on average 1.2876712328767124) internal successors, (94), 73 states have internal predecessors, (94), 24 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-20 06:22:58,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 142 transitions. [2024-11-20 06:22:58,978 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 142 transitions. Word has length 166 [2024-11-20 06:22:58,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:22:58,980 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 142 transitions. [2024-11-20 06:22:58,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 17 states have internal predecessors, (90), 3 states have call successors, (36), 3 states have call predecessors, (36), 7 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2024-11-20 06:22:58,981 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 142 transitions. [2024-11-20 06:22:58,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-20 06:22:58,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:22:58,983 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:22:58,995 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 06:22:59,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 06:22:59,184 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:22:59,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:22:59,185 INFO L85 PathProgramCache]: Analyzing trace with hash -244228299, now seen corresponding path program 1 times [2024-11-20 06:22:59,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:22:59,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004867554] [2024-11-20 06:22:59,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:22:59,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:22:59,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:23:06,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:23:06,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:23:06,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:23:06,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:23:06,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:23:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:23:06,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 06:23:06,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:23:06,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-20 06:23:06,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:23:06,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-20 06:23:06,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:23:06,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 06:23:06,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:23:06,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-20 06:23:06,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:23:06,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 06:23:06,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:23:06,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 06:23:06,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:23:06,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 06:23:06,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:23:06,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-20 06:23:06,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:23:06,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 06:23:06,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:23:06,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 06:23:06,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:23:06,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 06:23:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:23:06,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 06:23:06,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:23:06,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 06:23:06,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:23:06,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 06:23:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:23:06,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 06:23:06,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:23:06,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-20 06:23:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:23:06,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-20 06:23:06,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:23:06,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 06:23:06,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:23:06,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-20 06:23:06,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:23:06,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 06:23:06,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:23:06,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 93 proven. 39 refuted. 0 times theorem prover too weak. 972 trivial. 0 not checked. [2024-11-20 06:23:06,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:23:06,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004867554] [2024-11-20 06:23:06,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004867554] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 06:23:06,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920806332] [2024-11-20 06:23:06,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:23:06,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 06:23:06,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 06:23:06,777 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) [2024-11-20 06:23:06,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 06:23:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:23:06,942 INFO L255 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-11-20 06:23:06,956 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 06:23:10,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 692 proven. 90 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2024-11-20 06:23:10,403 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 06:23:23,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 183 proven. 75 refuted. 0 times theorem prover too weak. 846 trivial. 0 not checked. [2024-11-20 06:23:23,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [920806332] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 06:23:23,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 06:23:23,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 24, 21] total 57 [2024-11-20 06:23:23,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689339913] [2024-11-20 06:23:23,552 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 06:23:23,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-11-20 06:23:23,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:23:23,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-11-20 06:23:23,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=498, Invalid=2694, Unknown=0, NotChecked=0, Total=3192 [2024-11-20 06:23:23,561 INFO L87 Difference]: Start difference. First operand 101 states and 142 transitions. Second operand has 57 states, 55 states have (on average 2.890909090909091) internal successors, (159), 53 states have internal predecessors, (159), 13 states have call successors, (72), 6 states have call predecessors, (72), 13 states have return successors, (72), 15 states have call predecessors, (72), 13 states have call successors, (72)