./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-14.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-14.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 0d45567a05c43a020d83c4148b7193297efc53c68aa1babb30080e6503f970de --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 09:34:12,492 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 09:34:12,548 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 09:34:12,554 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 09:34:12,555 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 09:34:12,581 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 09:34:12,583 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 09:34:12,583 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 09:34:12,584 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 09:34:12,590 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 09:34:12,590 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 09:34:12,591 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 09:34:12,591 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 09:34:12,594 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 09:34:12,594 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 09:34:12,595 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 09:34:12,595 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 09:34:12,595 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 09:34:12,595 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 09:34:12,595 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 09:34:12,595 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 09:34:12,597 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 09:34:12,597 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 09:34:12,597 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 09:34:12,597 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 09:34:12,597 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 09:34:12,598 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 09:34:12,598 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 09:34:12,598 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 09:34:12,598 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 09:34:12,598 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 09:34:12,600 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 09:34:12,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 09:34:12,600 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 09:34:12,600 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 09:34:12,600 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 09:34:12,600 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 09:34:12,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 09:34:12,600 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 09:34:12,601 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 09:34:12,601 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 09:34:12,602 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 09:34:12,602 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d45567a05c43a020d83c4148b7193297efc53c68aa1babb30080e6503f970de [2024-10-24 09:34:12,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 09:34:12,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 09:34:12,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 09:34:12,859 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 09:34:12,860 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 09:34:12,860 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-14.i [2024-10-24 09:34:14,270 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 09:34:14,412 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 09:34:14,413 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-14.i [2024-10-24 09:34:14,419 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2858f9862/2acd5df5726e499bbd71734584c64e29/FLAG488842a12 [2024-10-24 09:34:14,432 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2858f9862/2acd5df5726e499bbd71734584c64e29 [2024-10-24 09:34:14,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 09:34:14,435 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 09:34:14,436 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 09:34:14,436 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 09:34:14,440 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 09:34:14,441 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:34:14" (1/1) ... [2024-10-24 09:34:14,442 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ea42478 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:34:14, skipping insertion in model container [2024-10-24 09:34:14,442 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:34:14" (1/1) ... [2024-10-24 09:34:14,460 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 09:34:14,577 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-14.i[915,928] [2024-10-24 09:34:14,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 09:34:14,636 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 09:34:14,646 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-14.i[915,928] [2024-10-24 09:34:14,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 09:34:14,702 INFO L204 MainTranslator]: Completed translation [2024-10-24 09:34:14,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:34:14 WrapperNode [2024-10-24 09:34:14,705 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 09:34:14,706 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 09:34:14,707 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 09:34:14,707 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 09:34:14,712 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:34:14" (1/1) ... [2024-10-24 09:34:14,722 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:34:14" (1/1) ... [2024-10-24 09:34:14,749 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 116 [2024-10-24 09:34:14,752 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 09:34:14,753 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 09:34:14,753 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 09:34:14,753 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 09:34:14,761 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:34:14" (1/1) ... [2024-10-24 09:34:14,762 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:34:14" (1/1) ... [2024-10-24 09:34:14,763 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:34:14" (1/1) ... [2024-10-24 09:34:14,774 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 09:34:14,774 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:34:14" (1/1) ... [2024-10-24 09:34:14,774 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:34:14" (1/1) ... [2024-10-24 09:34:14,777 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:34:14" (1/1) ... [2024-10-24 09:34:14,780 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:34:14" (1/1) ... [2024-10-24 09:34:14,781 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:34:14" (1/1) ... [2024-10-24 09:34:14,781 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:34:14" (1/1) ... [2024-10-24 09:34:14,783 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 09:34:14,784 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 09:34:14,784 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 09:34:14,784 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 09:34:14,785 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:34:14" (1/1) ... [2024-10-24 09:34:14,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 09:34:14,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 09:34:14,827 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) [2024-10-24 09:34:14,841 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 [2024-10-24 09:34:14,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 09:34:14,876 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 09:34:14,876 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 09:34:14,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 09:34:14,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 09:34:14,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 09:34:14,947 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 09:34:14,948 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 09:34:15,191 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-10-24 09:34:15,191 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 09:34:15,228 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 09:34:15,229 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 09:34:15,229 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:34:15 BoogieIcfgContainer [2024-10-24 09:34:15,229 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 09:34:15,231 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 09:34:15,231 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 09:34:15,233 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 09:34:15,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:34:14" (1/3) ... [2024-10-24 09:34:15,234 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35048a4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:34:15, skipping insertion in model container [2024-10-24 09:34:15,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:34:14" (2/3) ... [2024-10-24 09:34:15,234 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35048a4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:34:15, skipping insertion in model container [2024-10-24 09:34:15,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:34:15" (3/3) ... [2024-10-24 09:34:15,236 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-14.i [2024-10-24 09:34:15,248 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 09:34:15,248 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 09:34:15,290 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 09:34:15,296 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;@7ac5306b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 09:34:15,296 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 09:34:15,299 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 27 states have internal predecessors, (36), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-24 09:34:15,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-24 09:34:15,307 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:34:15,307 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:34:15,308 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:34:15,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:34:15,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1052372421, now seen corresponding path program 1 times [2024-10-24 09:34:15,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:34:15,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104278124] [2024-10-24 09:34:15,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:34:15,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:34:15,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:15,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:34:15,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:15,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:34:15,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:15,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:34:15,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:15,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:34:15,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:15,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:34:15,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:15,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:34:15,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:15,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:34:15,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:15,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:34:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:15,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:34:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:15,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:34:15,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:15,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:34:15,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:15,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:34:15,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:15,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:34:15,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:15,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:34:15,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:15,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:34:15,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:15,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:34:15,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:15,577 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-24 09:34:15,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:34:15,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104278124] [2024-10-24 09:34:15,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104278124] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:34:15,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:34:15,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 09:34:15,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311300759] [2024-10-24 09:34:15,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:34:15,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 09:34:15,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:34:15,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 09:34:15,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 09:34:15,603 INFO L87 Difference]: Start difference. First operand has 45 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 27 states have internal predecessors, (36), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 09:34:15,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:34:15,638 INFO L93 Difference]: Finished difference Result 87 states and 150 transitions. [2024-10-24 09:34:15,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 09:34:15,640 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 100 [2024-10-24 09:34:15,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:34:15,648 INFO L225 Difference]: With dead ends: 87 [2024-10-24 09:34:15,648 INFO L226 Difference]: Without dead ends: 43 [2024-10-24 09:34:15,651 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 09:34:15,653 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 09:34:15,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 09:34:15,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-10-24 09:34:15,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-10-24 09:34:15,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-24 09:34:15,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 63 transitions. [2024-10-24 09:34:15,712 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 63 transitions. Word has length 100 [2024-10-24 09:34:15,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:34:15,713 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 63 transitions. [2024-10-24 09:34:15,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 09:34:15,714 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 63 transitions. [2024-10-24 09:34:15,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-24 09:34:15,718 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:34:15,719 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:34:15,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 09:34:15,719 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:34:15,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:34:15,720 INFO L85 PathProgramCache]: Analyzing trace with hash 67842619, now seen corresponding path program 1 times [2024-10-24 09:34:15,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:34:15,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369573710] [2024-10-24 09:34:15,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:34:15,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:34:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:16,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:34:16,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:16,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:34:16,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:16,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:34:16,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:16,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:34:16,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:16,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:34:16,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:16,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:34:16,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:16,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:34:16,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:16,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:34:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:16,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:34:16,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:16,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:34:16,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:16,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:34:16,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:16,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:34:16,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:16,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:34:16,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:16,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:34:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:16,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:34:16,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:16,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:34:16,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:16,155 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-24 09:34:16,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:34:16,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369573710] [2024-10-24 09:34:16,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369573710] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:34:16,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:34:16,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 09:34:16,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292520704] [2024-10-24 09:34:16,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:34:16,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 09:34:16,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:34:16,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 09:34:16,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 09:34:16,159 INFO L87 Difference]: Start difference. First operand 43 states and 63 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-24 09:34:16,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:34:16,287 INFO L93 Difference]: Finished difference Result 137 states and 199 transitions. [2024-10-24 09:34:16,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 09:34:16,288 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 100 [2024-10-24 09:34:16,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:34:16,290 INFO L225 Difference]: With dead ends: 137 [2024-10-24 09:34:16,290 INFO L226 Difference]: Without dead ends: 95 [2024-10-24 09:34:16,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 09:34:16,291 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 57 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 09:34:16,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 171 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 09:34:16,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-10-24 09:34:16,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 83. [2024-10-24 09:34:16,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 48 states have (on average 1.2083333333333333) internal successors, (58), 48 states have internal predecessors, (58), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-24 09:34:16,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 122 transitions. [2024-10-24 09:34:16,308 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 122 transitions. Word has length 100 [2024-10-24 09:34:16,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:34:16,309 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 122 transitions. [2024-10-24 09:34:16,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-24 09:34:16,309 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 122 transitions. [2024-10-24 09:34:16,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-24 09:34:16,310 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:34:16,310 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:34:16,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 09:34:16,311 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:34:16,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:34:16,311 INFO L85 PathProgramCache]: Analyzing trace with hash -325184391, now seen corresponding path program 1 times [2024-10-24 09:34:16,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:34:16,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829697991] [2024-10-24 09:34:16,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:34:16,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:34:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:18,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:34:18,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:18,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:34:18,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:18,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:34:18,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:18,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:34:18,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:18,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:34:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:18,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:34:18,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:18,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:34:18,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:18,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:34:18,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:18,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:34:18,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:18,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:34:18,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:18,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:34:18,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:18,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:34:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:18,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:34:18,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:18,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:34:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:18,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:34:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:18,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:34:18,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:18,897 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-24 09:34:18,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:34:18,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829697991] [2024-10-24 09:34:18,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829697991] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:34:18,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:34:18,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 09:34:18,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075323781] [2024-10-24 09:34:18,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:34:18,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 09:34:18,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:34:18,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 09:34:18,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-24 09:34:18,900 INFO L87 Difference]: Start difference. First operand 83 states and 122 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-24 09:34:19,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:34:19,309 INFO L93 Difference]: Finished difference Result 92 states and 130 transitions. [2024-10-24 09:34:19,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 09:34:19,309 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 100 [2024-10-24 09:34:19,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:34:19,311 INFO L225 Difference]: With dead ends: 92 [2024-10-24 09:34:19,311 INFO L226 Difference]: Without dead ends: 90 [2024-10-24 09:34:19,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2024-10-24 09:34:19,313 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 64 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 09:34:19,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 179 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 09:34:19,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-10-24 09:34:19,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 85. [2024-10-24 09:34:19,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 50 states have (on average 1.2) internal successors, (60), 50 states have internal predecessors, (60), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-24 09:34:19,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 124 transitions. [2024-10-24 09:34:19,323 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 124 transitions. Word has length 100 [2024-10-24 09:34:19,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:34:19,323 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 124 transitions. [2024-10-24 09:34:19,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-24 09:34:19,324 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 124 transitions. [2024-10-24 09:34:19,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-24 09:34:19,325 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:34:19,325 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:34:19,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 09:34:19,325 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:34:19,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:34:19,325 INFO L85 PathProgramCache]: Analyzing trace with hash -325124809, now seen corresponding path program 1 times [2024-10-24 09:34:19,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:34:19,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434440436] [2024-10-24 09:34:19,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:34:19,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:34:19,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:19,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:34:19,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:19,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:34:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:19,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:34:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:19,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:34:19,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:19,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:34:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:19,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:34:19,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:19,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:34:19,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:19,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:34:19,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:19,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:34:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:19,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:34:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:19,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:34:19,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:19,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:34:19,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:19,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:34:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:19,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:34:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:19,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:34:19,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:19,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:34:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:19,410 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-24 09:34:19,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:34:19,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434440436] [2024-10-24 09:34:19,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434440436] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:34:19,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:34:19,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 09:34:19,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45463927] [2024-10-24 09:34:19,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:34:19,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 09:34:19,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:34:19,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 09:34:19,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 09:34:19,412 INFO L87 Difference]: Start difference. First operand 85 states and 124 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-24 09:34:19,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:34:19,522 INFO L93 Difference]: Finished difference Result 209 states and 306 transitions. [2024-10-24 09:34:19,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 09:34:19,522 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 100 [2024-10-24 09:34:19,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:34:19,524 INFO L225 Difference]: With dead ends: 209 [2024-10-24 09:34:19,524 INFO L226 Difference]: Without dead ends: 125 [2024-10-24 09:34:19,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 09:34:19,526 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 42 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 09:34:19,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 194 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 09:34:19,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-10-24 09:34:19,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 123. [2024-10-24 09:34:19,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 71 states have (on average 1.1830985915492958) internal successors, (84), 71 states have internal predecessors, (84), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-24 09:34:19,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 180 transitions. [2024-10-24 09:34:19,554 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 180 transitions. Word has length 100 [2024-10-24 09:34:19,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:34:19,554 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 180 transitions. [2024-10-24 09:34:19,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-24 09:34:19,555 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 180 transitions. [2024-10-24 09:34:19,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-24 09:34:19,556 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:34:19,556 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:34:19,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 09:34:19,556 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:34:19,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:34:19,556 INFO L85 PathProgramCache]: Analyzing trace with hash 564632786, now seen corresponding path program 1 times [2024-10-24 09:34:19,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:34:19,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059604358] [2024-10-24 09:34:19,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:34:19,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:34:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:21,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:34:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:21,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:34:21,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:21,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:34:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:21,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:34:21,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:21,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:34:21,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:21,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:34:21,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:21,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:34:21,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:21,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:34:21,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:21,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:34:21,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:21,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:34:21,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:21,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:34:21,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:21,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:34:21,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:21,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:34:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:21,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:34:21,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:21,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:34:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:21,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:34:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:21,902 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-24 09:34:21,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:34:21,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059604358] [2024-10-24 09:34:21,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059604358] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:34:21,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:34:21,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 09:34:21,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664156151] [2024-10-24 09:34:21,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:34:21,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 09:34:21,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:34:21,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 09:34:21,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-10-24 09:34:21,905 INFO L87 Difference]: Start difference. First operand 123 states and 180 transitions. Second operand has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 09:34:23,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:34:23,116 INFO L93 Difference]: Finished difference Result 175 states and 239 transitions. [2024-10-24 09:34:23,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 09:34:23,120 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 101 [2024-10-24 09:34:23,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:34:23,122 INFO L225 Difference]: With dead ends: 175 [2024-10-24 09:34:23,122 INFO L226 Difference]: Without dead ends: 173 [2024-10-24 09:34:23,123 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2024-10-24 09:34:23,123 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 135 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 09:34:23,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 306 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 09:34:23,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-10-24 09:34:23,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 147. [2024-10-24 09:34:23,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 88 states have (on average 1.1818181818181819) internal successors, (104), 89 states have internal predecessors, (104), 54 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-24 09:34:23,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 212 transitions. [2024-10-24 09:34:23,145 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 212 transitions. Word has length 101 [2024-10-24 09:34:23,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:34:23,146 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 212 transitions. [2024-10-24 09:34:23,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 09:34:23,146 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 212 transitions. [2024-10-24 09:34:23,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-24 09:34:23,147 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:34:23,147 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:34:23,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 09:34:23,150 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:34:23,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:34:23,151 INFO L85 PathProgramCache]: Analyzing trace with hash 507374484, now seen corresponding path program 1 times [2024-10-24 09:34:23,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:34:23,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708897324] [2024-10-24 09:34:23,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:34:23,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:34:23,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:25,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:34:25,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:25,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:34:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:25,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:34:25,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:25,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:34:25,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:25,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:34:25,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:25,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:34:25,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:25,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:34:25,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:25,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:34:25,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:25,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:34:25,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:25,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:34:25,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:25,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:34:25,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:25,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:34:25,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:25,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:34:25,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:25,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:34:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:25,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:34:25,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:25,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:34:25,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:25,767 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-24 09:34:25,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:34:25,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708897324] [2024-10-24 09:34:25,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708897324] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:34:25,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:34:25,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 09:34:25,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188047136] [2024-10-24 09:34:25,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:34:25,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 09:34:25,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:34:25,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 09:34:25,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-24 09:34:25,770 INFO L87 Difference]: Start difference. First operand 147 states and 212 transitions. Second operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-24 09:34:26,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:34:26,233 INFO L93 Difference]: Finished difference Result 194 states and 266 transitions. [2024-10-24 09:34:26,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 09:34:26,234 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 101 [2024-10-24 09:34:26,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:34:26,236 INFO L225 Difference]: With dead ends: 194 [2024-10-24 09:34:26,236 INFO L226 Difference]: Without dead ends: 192 [2024-10-24 09:34:26,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2024-10-24 09:34:26,241 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 37 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 09:34:26,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 306 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 09:34:26,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-10-24 09:34:26,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 153. [2024-10-24 09:34:26,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 94 states have (on average 1.1808510638297873) internal successors, (111), 95 states have internal predecessors, (111), 54 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-24 09:34:26,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 219 transitions. [2024-10-24 09:34:26,274 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 219 transitions. Word has length 101 [2024-10-24 09:34:26,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:34:26,274 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 219 transitions. [2024-10-24 09:34:26,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-24 09:34:26,275 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 219 transitions. [2024-10-24 09:34:26,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-10-24 09:34:26,282 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:34:26,282 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:34:26,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 09:34:26,283 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:34:26,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:34:26,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1271635853, now seen corresponding path program 1 times [2024-10-24 09:34:26,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:34:26,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145502636] [2024-10-24 09:34:26,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:34:26,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:34:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:34:27,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:34:27,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:34:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:34:27,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:34:27,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:34:27,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:34:27,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:34:27,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:34:27,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:34:27,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:34:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:34:27,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:34:27,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:34:27,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:34:27,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:34:27,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 09:34:27,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 09:34:27,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 09:34:27,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 09:34:27,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 09:34:27,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 09:34:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 09:34:27,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:34:27,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-24 09:34:27,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 09:34:27,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 09:34:27,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-24 09:34:27,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 09:34:27,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-10-24 09:34:27,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-24 09:34:27,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-10-24 09:34:27,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,343 INFO L134 CoverageAnalysis]: Checked inductivity of 2018 backedges. 8 proven. 26 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2024-10-24 09:34:27,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:34:27,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145502636] [2024-10-24 09:34:27,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145502636] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 09:34:27,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524107925] [2024-10-24 09:34:27,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:34:27,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 09:34:27,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 09:34:27,352 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 09:34:27,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 09:34:27,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:27,463 INFO L255 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 09:34:27,473 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 09:34:27,714 INFO L134 CoverageAnalysis]: Checked inductivity of 2018 backedges. 1057 proven. 0 refuted. 0 times theorem prover too weak. 961 trivial. 0 not checked. [2024-10-24 09:34:27,715 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 09:34:27,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524107925] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:34:27,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 09:34:27,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2024-10-24 09:34:27,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832679925] [2024-10-24 09:34:27,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:34:27,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 09:34:27,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:34:27,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 09:34:27,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-10-24 09:34:27,718 INFO L87 Difference]: Start difference. First operand 153 states and 219 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-10-24 09:34:27,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:34:27,898 INFO L93 Difference]: Finished difference Result 324 states and 463 transitions. [2024-10-24 09:34:27,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 09:34:27,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 200 [2024-10-24 09:34:27,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:34:27,900 INFO L225 Difference]: With dead ends: 324 [2024-10-24 09:34:27,900 INFO L226 Difference]: Without dead ends: 212 [2024-10-24 09:34:27,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2024-10-24 09:34:27,901 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 44 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 09:34:27,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 193 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 09:34:27,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-10-24 09:34:27,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 196. [2024-10-24 09:34:27,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 120 states have (on average 1.1916666666666667) internal successors, (143), 121 states have internal predecessors, (143), 70 states have call successors, (70), 5 states have call predecessors, (70), 5 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2024-10-24 09:34:27,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 283 transitions. [2024-10-24 09:34:27,916 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 283 transitions. Word has length 200 [2024-10-24 09:34:27,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:34:27,917 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 283 transitions. [2024-10-24 09:34:27,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-10-24 09:34:27,917 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 283 transitions. [2024-10-24 09:34:27,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-10-24 09:34:27,919 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:34:27,919 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:34:27,933 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 09:34:28,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 09:34:28,124 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:34:28,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:34:28,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1328894155, now seen corresponding path program 1 times [2024-10-24 09:34:28,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:34:28,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264559564] [2024-10-24 09:34:28,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:34:28,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:34:28,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:34:28,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:34:28,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:34:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:34:28,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:34:28,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:34:28,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:34:28,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:34:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:34:28,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:34:28,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:34:28,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:34:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:34:28,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:34:28,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:34:28,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:34:28,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 09:34:28,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 09:34:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 09:34:28,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 09:34:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 09:34:28,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 09:34:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 09:34:28,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:34:28,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-24 09:34:28,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 09:34:28,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 09:34:28,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-24 09:34:28,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 09:34:28,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-10-24 09:34:28,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-24 09:34:28,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-10-24 09:34:28,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,352 INFO L134 CoverageAnalysis]: Checked inductivity of 2018 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2024-10-24 09:34:28,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:34:28,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264559564] [2024-10-24 09:34:28,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264559564] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 09:34:28,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068554178] [2024-10-24 09:34:28,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:34:28,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 09:34:28,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 09:34:28,355 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 09:34:28,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 09:34:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:34:28,442 INFO L255 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-24 09:34:28,448 INFO L278 TraceCheckSpWp]: Computing forward predicates...