./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_variablewrapping_wrapper-sp_file-32.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_variablewrapping_wrapper-sp_file-32.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 6bdaf076d843757cd349145aa22062c93bd9b98b715a11ab9b45e3c6c7d41988 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 09:06:05,727 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 09:06:05,800 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 09:06:05,803 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 09:06:05,805 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 09:06:05,826 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 09:06:05,829 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 09:06:05,829 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 09:06:05,830 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 09:06:05,830 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 09:06:05,831 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 09:06:05,831 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 09:06:05,832 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 09:06:05,832 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 09:06:05,833 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 09:06:05,833 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 09:06:05,834 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 09:06:05,834 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 09:06:05,834 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 09:06:05,834 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 09:06:05,834 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 09:06:05,835 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 09:06:05,835 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 09:06:05,835 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 09:06:05,835 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 09:06:05,836 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 09:06:05,836 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 09:06:05,836 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 09:06:05,836 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 09:06:05,836 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 09:06:05,837 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 09:06:05,837 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 09:06:05,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:06:05,837 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 09:06:05,837 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 09:06:05,838 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 09:06:05,838 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 09:06:05,838 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 09:06:05,838 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 09:06:05,838 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 09:06:05,839 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 09:06:05,841 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 09:06:05,841 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6bdaf076d843757cd349145aa22062c93bd9b98b715a11ab9b45e3c6c7d41988 [2024-11-20 09:06:06,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 09:06:06,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 09:06:06,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 09:06:06,042 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 09:06:06,042 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 09:06:06,043 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-32.i [2024-11-20 09:06:07,228 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 09:06:07,403 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 09:06:07,406 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-32.i [2024-11-20 09:06:07,416 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77e71c988/1d4a4bc0940543d6b34f298fe719c287/FLAGa49475125 [2024-11-20 09:06:07,427 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77e71c988/1d4a4bc0940543d6b34f298fe719c287 [2024-11-20 09:06:07,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 09:06:07,430 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 09:06:07,431 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 09:06:07,431 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 09:06:07,435 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 09:06:07,435 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:06:07" (1/1) ... [2024-11-20 09:06:07,436 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44b103a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:06:07, skipping insertion in model container [2024-11-20 09:06:07,436 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:06:07" (1/1) ... [2024-11-20 09:06:07,466 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 09:06:07,630 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_variablewrapping_wrapper-sp_file-32.i[917,930] [2024-11-20 09:06:07,703 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:06:07,711 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 09:06:07,719 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_variablewrapping_wrapper-sp_file-32.i[917,930] [2024-11-20 09:06:07,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:06:07,775 INFO L204 MainTranslator]: Completed translation [2024-11-20 09:06:07,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:06:07 WrapperNode [2024-11-20 09:06:07,776 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 09:06:07,777 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 09:06:07,777 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 09:06:07,777 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 09:06:07,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:06:07" (1/1) ... [2024-11-20 09:06:07,797 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:06:07" (1/1) ... [2024-11-20 09:06:07,838 INFO L138 Inliner]: procedures = 27, calls = 154, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 445 [2024-11-20 09:06:07,838 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 09:06:07,839 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 09:06:07,839 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 09:06:07,839 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 09:06:07,847 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:06:07" (1/1) ... [2024-11-20 09:06:07,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:06:07" (1/1) ... [2024-11-20 09:06:07,852 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:06:07" (1/1) ... [2024-11-20 09:06:07,880 INFO L175 MemorySlicer]: Split 125 memory accesses to 2 slices as follows [2, 123]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 28 writes are split as follows [0, 28]. [2024-11-20 09:06:07,881 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:06:07" (1/1) ... [2024-11-20 09:06:07,881 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:06:07" (1/1) ... [2024-11-20 09:06:07,896 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:06:07" (1/1) ... [2024-11-20 09:06:07,901 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:06:07" (1/1) ... [2024-11-20 09:06:07,903 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:06:07" (1/1) ... [2024-11-20 09:06:07,908 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:06:07" (1/1) ... [2024-11-20 09:06:07,914 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 09:06:07,915 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 09:06:07,915 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 09:06:07,915 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 09:06:07,916 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:06:07" (1/1) ... [2024-11-20 09:06:07,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:06:07,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:06:07,945 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 09:06:07,951 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 09:06:07,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 09:06:07,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-20 09:06:07,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-20 09:06:07,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 09:06:07,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 09:06:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 09:06:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 09:06:07,990 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 09:06:07,990 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 09:06:07,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 09:06:07,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 09:06:07,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 09:06:07,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 09:06:08,094 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 09:06:08,095 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 09:06:08,463 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-11-20 09:06:08,463 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 09:06:08,476 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 09:06:08,476 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 09:06:08,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:06:08 BoogieIcfgContainer [2024-11-20 09:06:08,477 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 09:06:08,479 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 09:06:08,479 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 09:06:08,481 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 09:06:08,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:06:07" (1/3) ... [2024-11-20 09:06:08,483 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69997be2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:06:08, skipping insertion in model container [2024-11-20 09:06:08,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:06:07" (2/3) ... [2024-11-20 09:06:08,483 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69997be2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:06:08, skipping insertion in model container [2024-11-20 09:06:08,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:06:08" (3/3) ... [2024-11-20 09:06:08,485 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-32.i [2024-11-20 09:06:08,497 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 09:06:08,498 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 09:06:08,548 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 09:06:08,573 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;@51afa6fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 09:06:08,573 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 09:06:08,577 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 79 states have internal predecessors, (107), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-20 09:06:08,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-20 09:06:08,589 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:06:08,590 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:06:08,590 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:06:08,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:06:08,595 INFO L85 PathProgramCache]: Analyzing trace with hash 331903658, now seen corresponding path program 1 times [2024-11-20 09:06:08,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:06:08,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917123551] [2024-11-20 09:06:08,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:06:08,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:06:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:08,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:06:08,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:08,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:06:08,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:08,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:06:08,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:08,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:06:08,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:08,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:06:08,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:08,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:06:08,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:08,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:06:08,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:08,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:06:08,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:08,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:06:08,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:08,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:06:08,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:08,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:06:08,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:08,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:06:08,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:08,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:06:08,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:08,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:06:08,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:08,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:06:08,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:08,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:06:08,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:08,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:06:08,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:08,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:06:08,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:08,942 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 09:06:08,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:06:08,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917123551] [2024-11-20 09:06:08,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917123551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:06:08,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:06:08,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 09:06:08,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173934027] [2024-11-20 09:06:08,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:06:08,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 09:06:08,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:06:08,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 09:06:08,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 09:06:08,971 INFO L87 Difference]: Start difference. First operand has 99 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 79 states have internal predecessors, (107), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-20 09:06:08,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:06:08,992 INFO L93 Difference]: Finished difference Result 191 states and 298 transitions. [2024-11-20 09:06:08,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 09:06:08,995 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 129 [2024-11-20 09:06:08,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:06:09,000 INFO L225 Difference]: With dead ends: 191 [2024-11-20 09:06:09,000 INFO L226 Difference]: Without dead ends: 95 [2024-11-20 09:06:09,004 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 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 09:06:09,008 INFO L432 NwaCegarLoop]: 132 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, 132 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 09:06:09,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 09:06:09,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-20 09:06:09,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-11-20 09:06:09,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 75 states have (on average 1.28) internal successors, (96), 75 states have internal predecessors, (96), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-20 09:06:09,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 132 transitions. [2024-11-20 09:06:09,045 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 132 transitions. Word has length 129 [2024-11-20 09:06:09,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:06:09,045 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 132 transitions. [2024-11-20 09:06:09,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-20 09:06:09,046 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 132 transitions. [2024-11-20 09:06:09,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-20 09:06:09,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:06:09,048 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:06:09,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 09:06:09,049 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:06:09,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:06:09,049 INFO L85 PathProgramCache]: Analyzing trace with hash -718817914, now seen corresponding path program 1 times [2024-11-20 09:06:09,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:06:09,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436457409] [2024-11-20 09:06:09,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:06:09,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:06:09,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:09,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:06:09,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:09,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:06:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:09,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:06:09,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:09,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:06:09,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:09,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:06:09,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:09,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:06:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:09,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:06:09,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:09,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:06:09,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:09,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:06:09,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:09,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:06:09,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:09,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:06:09,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:09,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:06:09,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:09,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:06:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:09,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:06:09,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:09,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:06:09,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:09,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:06:09,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:09,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:06:09,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:09,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:06:09,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:09,516 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 09:06:09,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:06:09,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436457409] [2024-11-20 09:06:09,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436457409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:06:09,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:06:09,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 09:06:09,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412295118] [2024-11-20 09:06:09,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:06:09,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 09:06:09,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:06:09,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 09:06:09,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 09:06:09,522 INFO L87 Difference]: Start difference. First operand 95 states and 132 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 09:06:09,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:06:09,771 INFO L93 Difference]: Finished difference Result 280 states and 391 transitions. [2024-11-20 09:06:09,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 09:06:09,772 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 129 [2024-11-20 09:06:09,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:06:09,774 INFO L225 Difference]: With dead ends: 280 [2024-11-20 09:06:09,774 INFO L226 Difference]: Without dead ends: 188 [2024-11-20 09:06:09,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 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 09:06:09,777 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 94 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 09:06:09,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 301 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 09:06:09,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-20 09:06:09,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 157. [2024-11-20 09:06:09,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 118 states have (on average 1.2457627118644068) internal successors, (147), 118 states have internal predecessors, (147), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 09:06:09,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 219 transitions. [2024-11-20 09:06:09,806 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 219 transitions. Word has length 129 [2024-11-20 09:06:09,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:06:09,806 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 219 transitions. [2024-11-20 09:06:09,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 09:06:09,807 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 219 transitions. [2024-11-20 09:06:09,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-20 09:06:09,810 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:06:09,810 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:06:09,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 09:06:09,811 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:06:09,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:06:09,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1156097248, now seen corresponding path program 1 times [2024-11-20 09:06:09,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:06:09,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450653660] [2024-11-20 09:06:09,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:06:09,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:06:09,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:10,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:06:10,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:10,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:06:10,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:10,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:06:10,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:10,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:06:10,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:10,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:06:10,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:10,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:06:10,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:10,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:06:10,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:10,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:06:10,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:10,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:06:10,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:10,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:06:10,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:10,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:06:10,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:10,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:06:10,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:10,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:06:10,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:10,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:06:10,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:10,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:06:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:10,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:06:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:10,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:06:10,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:10,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:06:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:10,987 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 09:06:10,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:06:10,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450653660] [2024-11-20 09:06:10,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450653660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:06:10,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:06:10,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 09:06:10,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516952222] [2024-11-20 09:06:10,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:06:10,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 09:06:10,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:06:10,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 09:06:10,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-20 09:06:10,990 INFO L87 Difference]: Start difference. First operand 157 states and 219 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 09:06:11,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:06:11,577 INFO L93 Difference]: Finished difference Result 312 states and 438 transitions. [2024-11-20 09:06:11,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 09:06:11,579 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), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 137 [2024-11-20 09:06:11,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:06:11,582 INFO L225 Difference]: With dead ends: 312 [2024-11-20 09:06:11,582 INFO L226 Difference]: Without dead ends: 220 [2024-11-20 09:06:11,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2024-11-20 09:06:11,586 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 239 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 09:06:11,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 608 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 09:06:11,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-11-20 09:06:11,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 189. [2024-11-20 09:06:11,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 150 states have (on average 1.3) internal successors, (195), 150 states have internal predecessors, (195), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 09:06:11,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 267 transitions. [2024-11-20 09:06:11,616 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 267 transitions. Word has length 137 [2024-11-20 09:06:11,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:06:11,616 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 267 transitions. [2024-11-20 09:06:11,617 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), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 09:06:11,617 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 267 transitions. [2024-11-20 09:06:11,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-20 09:06:11,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:06:11,622 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:06:11,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 09:06:11,622 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:06:11,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:06:11,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1242605664, now seen corresponding path program 1 times [2024-11-20 09:06:11,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:06:11,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151481178] [2024-11-20 09:06:11,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:06:11,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:06:11,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:06:14,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:06:14,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:06:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:06:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:06:14,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:06:14,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:06:14,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:06:14,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:06:14,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:06:14,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:06:14,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:06:14,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:06:14,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:06:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:06:14,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:06:14,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:06:14,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:06:14,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:14,684 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 09:06:14,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:06:14,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151481178] [2024-11-20 09:06:14,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151481178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:06:14,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:06:14,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-20 09:06:14,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881790818] [2024-11-20 09:06:14,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:06:14,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-20 09:06:14,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:06:14,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-20 09:06:14,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-11-20 09:06:14,686 INFO L87 Difference]: Start difference. First operand 189 states and 267 transitions. Second operand has 18 states, 16 states have (on average 3.1875) internal successors, (51), 18 states have internal predecessors, (51), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-20 09:06:16,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:06:16,217 INFO L93 Difference]: Finished difference Result 353 states and 497 transitions. [2024-11-20 09:06:16,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-20 09:06:16,218 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.1875) internal successors, (51), 18 states have internal predecessors, (51), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18) Word has length 138 [2024-11-20 09:06:16,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:06:16,222 INFO L225 Difference]: With dead ends: 353 [2024-11-20 09:06:16,222 INFO L226 Difference]: Without dead ends: 242 [2024-11-20 09:06:16,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=143, Invalid=727, Unknown=0, NotChecked=0, Total=870 [2024-11-20 09:06:16,223 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 257 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 09:06:16,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 801 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 09:06:16,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-11-20 09:06:16,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 189. [2024-11-20 09:06:16,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 150 states have (on average 1.3) internal successors, (195), 150 states have internal predecessors, (195), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 09:06:16,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 267 transitions. [2024-11-20 09:06:16,250 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 267 transitions. Word has length 138 [2024-11-20 09:06:16,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:06:16,251 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 267 transitions. [2024-11-20 09:06:16,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.1875) internal successors, (51), 18 states have internal predecessors, (51), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-20 09:06:16,251 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 267 transitions. [2024-11-20 09:06:16,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 09:06:16,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:06:16,253 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:06:16,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 09:06:16,254 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:06:16,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:06:16,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1038102055, now seen corresponding path program 1 times [2024-11-20 09:06:16,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:06:16,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512152084] [2024-11-20 09:06:16,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:06:16,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:06:16,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:18,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:06:18,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:18,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:06:18,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:18,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:06:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:18,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:06:18,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:18,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:06:18,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:18,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:06:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:18,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:06:18,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:18,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:06:18,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:18,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:06:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:18,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:06:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:18,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:06:18,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:18,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:06:18,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:18,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:06:18,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:18,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:06:18,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:18,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:06:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:18,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:06:18,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:18,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:06:18,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:18,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:06:18,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:18,770 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 09:06:18,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:06:18,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512152084] [2024-11-20 09:06:18,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512152084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:06:18,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:06:18,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-20 09:06:18,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524417310] [2024-11-20 09:06:18,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:06:18,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 09:06:18,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:06:18,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 09:06:18,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-20 09:06:18,776 INFO L87 Difference]: Start difference. First operand 189 states and 267 transitions. Second operand has 15 states, 13 states have (on average 4.0) internal successors, (52), 15 states have internal predecessors, (52), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-20 09:06:20,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:06:20,034 INFO L93 Difference]: Finished difference Result 354 states and 500 transitions. [2024-11-20 09:06:20,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 09:06:20,034 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.0) internal successors, (52), 15 states have internal predecessors, (52), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18) Word has length 139 [2024-11-20 09:06:20,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:06:20,036 INFO L225 Difference]: With dead ends: 354 [2024-11-20 09:06:20,036 INFO L226 Difference]: Without dead ends: 243 [2024-11-20 09:06:20,036 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2024-11-20 09:06:20,037 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 214 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 1153 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 09:06:20,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 623 Invalid, 1165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1153 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 09:06:20,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2024-11-20 09:06:20,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 212. [2024-11-20 09:06:20,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 173 states have (on average 1.329479768786127) internal successors, (230), 173 states have internal predecessors, (230), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 09:06:20,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 302 transitions. [2024-11-20 09:06:20,062 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 302 transitions. Word has length 139 [2024-11-20 09:06:20,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:06:20,063 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 302 transitions. [2024-11-20 09:06:20,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.0) internal successors, (52), 15 states have internal predecessors, (52), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-20 09:06:20,063 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 302 transitions. [2024-11-20 09:06:20,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 09:06:20,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:06:20,065 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:06:20,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 09:06:20,065 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:06:20,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:06:20,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1341832277, now seen corresponding path program 1 times [2024-11-20 09:06:20,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:06:20,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865237697] [2024-11-20 09:06:20,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:06:20,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:06:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:20,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:06:20,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:20,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:06:20,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:20,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:06:20,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:20,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:06:20,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:20,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:06:20,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:20,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:06:20,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:20,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:06:20,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:20,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:06:20,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:20,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:06:20,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:20,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:06:20,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:20,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:06:20,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:20,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:06:20,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:20,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:06:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:20,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:06:20,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:20,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:06:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:20,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:06:20,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:20,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:06:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:20,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:06:20,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:20,183 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 09:06:20,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:06:20,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865237697] [2024-11-20 09:06:20,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865237697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:06:20,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:06:20,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 09:06:20,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674319448] [2024-11-20 09:06:20,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:06:20,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 09:06:20,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:06:20,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 09:06:20,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 09:06:20,186 INFO L87 Difference]: Start difference. First operand 212 states and 302 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 09:06:20,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:06:20,229 INFO L93 Difference]: Finished difference Result 341 states and 486 transitions. [2024-11-20 09:06:20,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 09:06:20,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 139 [2024-11-20 09:06:20,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:06:20,233 INFO L225 Difference]: With dead ends: 341 [2024-11-20 09:06:20,233 INFO L226 Difference]: Without dead ends: 215 [2024-11-20 09:06:20,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 09:06:20,234 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 09:06:20,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 500 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 09:06:20,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-20 09:06:20,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2024-11-20 09:06:20,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 176 states have (on average 1.3238636363636365) internal successors, (233), 176 states have internal predecessors, (233), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 09:06:20,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 305 transitions. [2024-11-20 09:06:20,255 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 305 transitions. Word has length 139 [2024-11-20 09:06:20,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:06:20,256 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 305 transitions. [2024-11-20 09:06:20,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 09:06:20,257 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 305 transitions. [2024-11-20 09:06:20,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 09:06:20,258 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:06:20,258 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:06:20,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 09:06:20,258 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:06:20,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:06:20,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1179497433, now seen corresponding path program 1 times [2024-11-20 09:06:20,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:06:20,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155860518] [2024-11-20 09:06:20,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:06:20,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:06:20,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:06:23,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:06:23,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:06:23,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:06:23,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:06:23,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:06:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:06:23,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:06:23,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:06:23,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:06:23,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:06:23,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:06:23,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:06:23,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:06:23,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:06:23,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:06:23,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:06:23,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:06:23,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:23,361 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 09:06:23,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:06:23,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155860518] [2024-11-20 09:06:23,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155860518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:06:23,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:06:23,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-20 09:06:23,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826286174] [2024-11-20 09:06:23,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:06:23,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-20 09:06:23,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:06:23,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-20 09:06:23,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-11-20 09:06:23,365 INFO L87 Difference]: Start difference. First operand 215 states and 305 transitions. Second operand has 19 states, 16 states have (on average 3.25) internal successors, (52), 19 states have internal predecessors, (52), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-20 09:06:25,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:06:25,215 INFO L93 Difference]: Finished difference Result 484 states and 675 transitions. [2024-11-20 09:06:25,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-20 09:06:25,215 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 3.25) internal successors, (52), 19 states have internal predecessors, (52), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) Word has length 139 [2024-11-20 09:06:25,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:06:25,217 INFO L225 Difference]: With dead ends: 484 [2024-11-20 09:06:25,217 INFO L226 Difference]: Without dead ends: 355 [2024-11-20 09:06:25,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=195, Invalid=861, Unknown=0, NotChecked=0, Total=1056 [2024-11-20 09:06:25,219 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 537 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 1591 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 1634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-20 09:06:25,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [540 Valid, 974 Invalid, 1634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1591 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-20 09:06:25,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-11-20 09:06:25,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 234. [2024-11-20 09:06:25,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 195 states have (on average 1.3384615384615384) internal successors, (261), 195 states have internal predecessors, (261), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 09:06:25,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 333 transitions. [2024-11-20 09:06:25,240 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 333 transitions. Word has length 139 [2024-11-20 09:06:25,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:06:25,240 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 333 transitions. [2024-11-20 09:06:25,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 3.25) internal successors, (52), 19 states have internal predecessors, (52), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-20 09:06:25,240 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 333 transitions. [2024-11-20 09:06:25,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-20 09:06:25,241 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:06:25,241 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:06:25,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 09:06:25,241 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:06:25,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:06:25,242 INFO L85 PathProgramCache]: Analyzing trace with hash 543307321, now seen corresponding path program 1 times [2024-11-20 09:06:25,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:06:25,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483305418] [2024-11-20 09:06:25,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:06:25,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:06:25,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:42,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 09:06:42,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:42,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 09:06:42,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:42,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 09:06:43,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:43,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 09:06:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:43,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 09:06:43,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:43,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 09:06:43,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:43,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 09:06:43,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:43,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 09:06:43,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:43,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 09:06:43,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:43,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 09:06:43,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:43,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 09:06:43,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:43,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 09:06:43,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:43,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 09:06:43,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:43,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 09:06:43,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:43,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 09:06:43,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:43,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 09:06:43,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:43,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 09:06:43,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:43,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 09:06:43,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:06:43,142 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 09:06:43,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:06:43,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483305418] [2024-11-20 09:06:43,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483305418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:06:43,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:06:43,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-20 09:06:43,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609673603] [2024-11-20 09:06:43,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:06:43,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-20 09:06:43,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:06:43,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-20 09:06:43,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=398, Unknown=3, NotChecked=0, Total=462 [2024-11-20 09:06:43,145 INFO L87 Difference]: Start difference. First operand 234 states and 333 transitions. Second operand has 22 states, 19 states have (on average 2.789473684210526) internal successors, (53), 22 states have internal predecessors, (53), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-20 09:06:49,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 09:06:56,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 09:07:04,615 WARN L286 SmtUtils]: Spent 8.18s on a formula simplification that was a NOOP. DAG size: 104 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-20 09:07:20,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 09:07:24,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 09:07:27,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 09:07:31,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 09:07:31,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 09:07:31,964 INFO L93 Difference]: Finished difference Result 542 states and 747 transitions. [2024-11-20 09:07:31,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-20 09:07:31,965 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 2.789473684210526) internal successors, (53), 22 states have internal predecessors, (53), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 5 states have call successors, (18) Word has length 140 [2024-11-20 09:07:31,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 09:07:31,967 INFO L225 Difference]: With dead ends: 542 [2024-11-20 09:07:31,967 INFO L226 Difference]: Without dead ends: 402 [2024-11-20 09:07:31,967 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 33.4s TimeCoverageRelationStatistics Valid=205, Invalid=1274, Unknown=3, NotChecked=0, Total=1482 [2024-11-20 09:07:31,968 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 329 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 3244 mSolverCounterSat, 24 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 2392 SdHoareTripleChecker+Invalid, 3270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 3244 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.5s IncrementalHoareTripleChecker+Time [2024-11-20 09:07:31,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 2392 Invalid, 3270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 3244 Invalid, 2 Unknown, 0 Unchecked, 28.5s Time] [2024-11-20 09:07:31,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2024-11-20 09:07:31,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 236. [2024-11-20 09:07:31,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 197 states have (on average 1.3401015228426396) internal successors, (264), 197 states have internal predecessors, (264), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 09:07:31,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 336 transitions. [2024-11-20 09:07:31,991 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 336 transitions. Word has length 140 [2024-11-20 09:07:31,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 09:07:31,992 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 336 transitions. [2024-11-20 09:07:31,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 2.789473684210526) internal successors, (53), 22 states have internal predecessors, (53), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-20 09:07:31,992 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 336 transitions. [2024-11-20 09:07:31,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-20 09:07:31,993 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 09:07:31,993 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:07:31,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 09:07:31,993 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 09:07:31,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:07:31,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1871530343, now seen corresponding path program 1 times [2024-11-20 09:07:31,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:07:31,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418366615] [2024-11-20 09:07:31,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:07:31,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:07:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat